DGGV E-Publikationen


‚Where to land the next Mars rover?‘ and ‚How much drugs are in our soils?‘ – a computational study of natural sorptive materials
2022
Valentina Erastova1

‚Where to land the next Mars rover?‘ and ‚How much drugs are in our soils?‘ – to answer these questions, we must look at the fundamental processes at the mineral…

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“Heat In Place” assessments for Berlin/Brandenburg’s deep geothermal potential
2022
Laureen Benoit1, Judith Bott2, Magdalena Scheck-Wenderoth3

Geologically located in the Northeast German Basin, Berlin and most parts of Brandenburg are known to be potentially suitable for deep geothermal energy usage. This source of energy is not…

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„Wer hat an der Uhr gedreht ?“ Mechanisms of Rb-Sr age resetting revealed by high-resolution LA-ICP-MS/MS isotope mappings
2022
Martin Kutzschbach1, Johannes Glodny2

The Rb-Sr isotope system is sensitive to secondary processes that disturb or even completely reset the age signal in datable minerals like mica or feldspars. To interpret age signatures correctly,…

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(How) does the water management work in connection with the lignite phase-out in the Rhenish mining area?
2023
Nils Cremer1

Der Braunkohleausstieg führt zu Veränderungen in allen Bereichen der Wasserwirtschaft. Im Rheinischen Revier werden sich nach dem Ende des Bergbaus einige der größten deutschen Seen bilden. Der Grundwasserspiegel steigt und…

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1 Ma of water mass provenance in the South Atlantic Ocean revealed by authigenic neodymium isotopes in ODP 1093
2023
Eva Marcella Rückert1, Moritz Hallmaier2, Norbert Frank1

The deep Southern Ocean (SO) circulation is of major significance for understanding of the ocean´s impact on Earth’s climate as uptake and release of CO­­­2 strongly depend on the redistribution…

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1.Halogens as tracers for mineralizing fluids in the Sn-W-Cu province of the Cornubian batholith, SW England
2022
Mauro Bongiovanni1, Tobias Fusswinkel1, Michael A.W. Marks2

Despite their well-known economic potential, the genesis of deposits associated with magmatic-hydrothermal fluids derived from granitic plutons is still not fully understood. The Cornubian batholith (SW England) represents an example…

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142Nd and 182W systematics of Neoarchean rocks from the Yilgarn Craton, W-Australia
2023
Max Hellers1, Eric Hasenstab-Dübeler1, Jonas Tusch1, Carina Gerritzen2, Mario Fischer-Gödde1, Andreas Schneider1, Chris S. Marien1, R. Hugh Smithies3, Stephen Wyche3, Martin J. Van Kranendonk4, Carsten Münker1

The short-lived isotope systems 146Sm-142Nd and 182Hf-182W were active during the first ca. 500 Ma and 50 Ma after solar system formation. As a result of recent analytical advances, it…

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146,147Sm-142,143Nd systematics of the Acasta Gneisses: New insights on the formation of Earth’s oldest rocks
2022
Alessandro Maltese1, Guillaume Caro2, Erik Scherer3, Peter Sprung3, Wouter Bleeker4, Klaus Mezger5

Reconstructing the earliest evolution of the silicate Earth remains a major geological challenge because of the scarcity and incomplete preservation of rocks older than 3.8 Ga. Isotope variations produced by…

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150 Jahre Geo-Sammlungen – von der Königlich Preußischen Geologischen Landesanstalt (KPGLA) bis zur Bundesanstalt für Geowissenschaften und Rohstoffe (BGR)
2023
Angela Ehling1

Der Beginn des systematischen, wissenschaftlichen Sammelns von Mineralen und Fossilien in Berlin ist eng verknüpft mit der Gründung der Berliner Bergakademie durch Friedrich II. Ab 1801 erhielt diese Sammlung die…

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2D finite-element modelling of the interaction between poroelastic effects and viscoelastic relaxation during the seismic cycle
2021
Jill Peikert1, Andrea Hampel1, Meike Bagge2

The analysis of Coulomb stress changes has become an important tool for seismic hazard evaluation because such stress changes may trigger or delay next earthquakes. Processes that can cause significant…

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3D basin modeling of the Hils Syncline, Germany: reconstruction of burial and thermal history and evaluation of their influence on the present-day petrophysical properties of potential host rocks for nuclear waste storage
2023
Leidy Castro-Vera1, Ralf Littke2, Sebastian Amberg2

The Hils Syncline is located in the south of the Lower Saxony Basin, Lower Cretaceous and Jurassic rocks crop out in its center. The Cretaceous and Jurassic sedimentary sequences in…

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3D Basin modelling of the northern Upper Rhine Graben : insights on geothermal fluid pathways
2021
Gillian BETHUNE1, Adriana LEMGRUBER-TRABY2, Claire BOSSENNEC3, Kristian BÄR3, Jeroen VAN DER VAART3, Christine SOUQUE2, Renaud DIVIES2

The area of the Upper Rhine Graben (URG) is known for its geothermal potential. However, the recent interest for lithium co-production from geothermal brines raises questions about the quantification and…

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3D Digital Sedimentary Petrology Models
2021
Robert Lander1, Linda Bonnell1, James Guilkey2

“Digital sedimentary petrology” models represent the microstructure of clastic rocks in 3D and use forward process models to simulate diagenesis in response to evolving burial conditions. This modeling approach predicts…

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3D geological modeling of graben structures in northern Hesse – concept, methods and first results
2021
Ina Lewin1, Rouwen Lehné2, Heiner Heggemann2

For some years now, the Hessian Agency for Nature Conservation, Environment and Geology (HLNUG) is focusing its 3D-modeling activities on urban areas, aiming to contribute to both integrated modeling and…

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3D geological modelling of the surficial aquitards in the German “Central Oder” sub-catchment.
2023
Klaus Duscher1

The „Central Oder“ sub-catchment in Germany is the first of three areas for which structural models of the surficial aquitards down to the latest Elsterian till are being constructed as…

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3D gravity modelling of the crust in the Eastern and eastern-Southern Alps using density data derived from compressional-wave velocities obtained by Local Earthquake Tomography
2023
Richard Sanders1, Eline Le Breton1, Christian Haberland2, Ajay Kumar2, Denis Anikiev2, Magdalena Scheck-Wenderoth3

Detailed crustal structures and causative kinematic processes in the Alps continue to be a matter of ongoing research. Of particular interest is the crustal structure of the Adriatic indenter, the…

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3D lithofacies modelling and quantitative fault seal analysis in the Altmark region (North German Basin)
2021
Jacob Waechter, Christian Olaf Mueller, Alexander Malz

Attributed 3D volumetric models are important tools for geothermal exploration, subsurface storage of natural gases and waste and for risk management (e.g. contamination of ground water or induced seismicity). Of…

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3D Rocks, 3D Outcrops, and Virtual Field Trips
2021
Sara Carena

Geoscience teaching has not kept up with technology. The ability to visualize objects in 3D is fundamental in geology, and yet we have hardly integrated any 3D tools in our…

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3D-architecture of a high-grade metamorphic gneiss terrain – How suitable are these rocks for of a deep geological repository site in Germany?
2023
Kay Bierbrauer1, Matthias Bauer1

Most high-grade metamorphic gneiss units in Germany exhibit a strong late-Variscan thermal imprint recorded by the presence of migmatites and granitic intrusions. A nuclear waste repository in this setting is…

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87Sr/86Sr ratios as tracer for gypsum sources and redistribution processes
2022
Katharina Deußen1, Carsten Münker1, Michael Staubwasser1

Gypsum group minerals in the Atacama Desert occur in pedogenic profiles or as primary lacustrine sediments and are subject to complex redistribution processes. The 87Sr/86Sr composition of gypsum is a…

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A 16 ka record of high-amplitude precipitation events from the southern part of the hyperarid Atacama Desert.
2022
Volker Wennrich1, Marlene Lenz1, Mark Reyers2, Jan H. Schween2, Florian Kerber3, Katharina Walber-Hellmann1, Bárbara Vargas-Machuca A.1, Dirk Hoffmeister4, Simon Matthias May4, Joel Mohren1, Benedikt Ritter1, Tibor Dunai1, Martin Melles1

The Atacama Desert in Chile is known to be one of the driest deserts on Earth, with dominating hyperaridity since the Miocene. During recent times, however, especially the southern part…

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A 182W isotope perspective on the sources of Paleoarchean TTGs from the Eastern Kaapvaal Craton, southern Africa
2023
J. Elis Hoffmann1, Jonas Tusch2, Pauline Sandor1, Guillaume Florin1

182W deficits in terrestrial rocks are currently strongly debated since their origin can be ascribed to different processes. These include (1) core-mantle interaction, (2) grainy late accretion, and (3) early…

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A 3.77 (or possibly 4.28) billion year history of microbial communities associated with marine hydrothermal vents
2021
Crispin Thomas Stephen Little

Modern hydrothermal vents provide diverse environments for microorganisms. Here there is a large phylogenetic and physiological diversity of bacteria and archaea, occurring in a wide range habitats. An assumption is…

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A 300,000 year record of cold-water coral mound build-up in the SE Alboran Sea (western Mediterranean): insights from benthic foraminifera
2022
Robin Fentimen1, Andres Rüggeberg1, Eline Feenstra1, Efraim Hall1, Valentin Rime1, Torsten Vennemann2, Irka Hajdas3, Antonietta Rosso4, David Van Rooij5, Thierry Adatte2, Hendrik Vogel6, Norbert Frank7, Anneleen Foubert1

Little is known about the build-up of Mediterranean cold-water coral mounds at the scale of multiple interglacial-glacial cycles. This study concentrates on the long-term development of coral mounds within the…

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A 3D gravity-consistent model of the southern San Andreas Fault system
2023
Angela Maria Gomez Garcia1, Ivone Jiménez-Munt1, Bart Root2, Magdalena Scheck-Wenderoth3

Earthquakes are a direct response to the Earth’s state of stress, which is one of the key ingredients controlling the lithosphere rheological behavior. To first order, the total in-situ stress…

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A 5.3-million-year history of monsoonal precipitation in northwestern Australia
2020
Jan-Berend Willem Stuut (1,2,3), Patrick De Deckker (4), Mariem Saavedra-Pellitero (2,5), Franck Bassinot (6), Anna Joy Drury (2,7), Maureen Walczak (4,8) & Kana Nagashima (9)

Australia is the driest inhabited continent on the planet, with its moisture mostly sourced from the tropical monsoon in the north and the southern westerlies in the south. The continent…

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A benchmark gallery for hierarchical model verification of TH2M coupled process models: Examples for CO2 sequestration and nuclear waste disposal
2023
Kata Kurgyis1, Aqeel Afzal Chaudhry1, Michael Pitz2, Norbert Grunwald3, Jörg Buchwald3, Dmitri Naumov3, Wenqing Wang3, Christoph Lehmann3, Olaf Kolditz3, Jobst Maßmann4, Thomas Nagel1

In this study, we introduce an open-source benchmark gallery for a systematic verification of numerical simulations of coupled multi-field processes in geological storage and sequestration. Here, the focus lies on…

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A co-ordinated German approach to non-traditional tertiary geoscience (field) education?
2020
Virginia Gail Toy

The restrictions in place due to the COVID epidemic have forced us to develop non-traditional solutions to teach field geology in the last few months, such as virtual field excursions,…

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A Collaborative Approach to Sustainable Mining Governance in the Andes: Insights from BGR’s MinSus Project
2023
Achim Constantin1, Jacob Mai1

The Andean region possess a wealth of mineral resources, such as copper and lithium, which are increasingly in demand by various industries and sectors, including renewable energy, electronics, and transportation….

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A critical look into the past – The hidden colonial heritage in mineralogical museums
2022
Gero Bohné1, Raphael Krag1, Mertens Céline1, Marco Rothenhäusler1, Anne Zacke1

The provenance of objects –in terms of chronology of ownerships – in museums and collections is a cutting-edge topic discussed especially among art historians, historians and ethnologists. Until now, the…

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A Deeper Look Into the 2021 Tyrnavos Earthquake Sequence (TES) Reveals Coseismic Breaching of an Unrecognized Large-Scale Fault Relay Zone in Continental Greece
2023
Vasiliki Mouslopoulou1, Henriette Sudhaus2, Kostas Konstantinou3, John Begg4, Vasso Saltogianni5, Benjamin Männel6, Onno Oncken6

Large magnitude (Mw ∼ ≥6) earthquakes in extensional settings are often associated with simultaneous rupture of multiple normal faults as a result of static and/or dynamic stress transfer.Here, we report…

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A first look into the gallium-aluminium systematics of Early Earth’s seawater: Evidence from banded iron formations
2023
David M. Ernst1, Dieter Garbe-Schönberg2, Dennis Krämer3, Michael Bau1

We conducted the first study on Ga-Al systematics in Archaean and Palaeoproterozoic banded iron formations (BIFs). Adjacent Fe oxide, metachert and mixed-type bands were analysed comparatively with solution-based SF-ICP-MS and…

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A Gaussian process regression model to determine solubility of calcium sulfate in aqueous fluids
2021
Ali Sadighi, Reza Taherdangkoo, Christoph Butscher

The swelling of clay-sulfate rocks is a well-known phenomenon often causing threats to the success of different projects, for instance, geothermal drillings triggered swelling and ground heave with dramatic damages…

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A global rate of denudation from cosmogenic nuclides in the Earth’s largest rivers
2021
Hella Wittmann1, Marcus Oelze1, Jerome Gaillardet2, Eduardo Garzanti3, Friedhelm von Blanckenburg1,4

Cosmogenic nuclide analysis in sediment from the Earth’s largest rivers yields mean denudation rates of the sediment-producing areas that average out local variations commonly found in small rivers. Using this…

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A global review of carbonatite-hosted fluid inclusions and the role of fluid release on carbonatite magma ascent
2021
Benjamin Florian Walter1, Johannes Giebel2,3, Matthew Steele-MacInnis4, Michael Marks5, Jochen Kolb1, Gregor Markl5

Carbonatites crystallize from mantle-derived carbonate- and volatile-rich melts that exsolve large amounts of fluids during their ascent through and emplacement into the crust. A global review of available fluid inclusion…

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A Heat Demand Map of North-West Europe – its impact on supply areas and identification of potential production areas for deep geothermal energy
2021
Eileen Herbst1,2, Elias Khashfe1,2, Alexander Jüstel1,2, Frank Strozyk2, Peter Kukla1,2

To achieve the Paris Agreement’s goal of maximum global warming by 2 degrees, CO2 reduction is indispensable. Space heating for residential, service and industrial buildings amounts to 26% of EU’s…

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A historical record of combustion pollution in lake sediments during medieval and early modern times in Bad Waldsee (southern Germany)
2023
Kristin Haas1, Sara Saeidi ghavi andam2, Matthias Hinderer1, Thomas Schiedek1, Elena Marinova2

Laminated sediments of lake Stadtsee, located next to the city Bad Waldsee, provide a unique archive of socio-economic and environmental history since Medieval times. In this study we explored the…

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A hot, hydrothermally-fed microbial tidal flat in the Paleoarchean Moodies Group, Barberton Greenstone Belt, South Africa?
2023
Hannes Stengel1, Christoph Heubeck1

Sandy alluvial-, deltaic-, and tidal-facies sediments of the Paleoarchean Moodies Group (ca. 3,220 Ma) are preserved several km thick in the central Barberton Greenstone Belt, interspersed with diverse units representing…

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A key option to transfer geosciences – relate geoheritage to fun
2021
Marie-Luise Frey1, Christine Hogefeld2, Pascal Schmitz3, Klaudia Wolf4

Many attempts up to today exist to transfer geosciences to the general public. Some started at the beginning of the 20th century. It is surprising that only since the beginning…

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A lab on a chip concept for rationalizing hydro-geochemical processes at the pore scale and their integration into larger scale analyses
2022
Jenna Poonoosamy1, Mara Lönartz1, Yuankai Yang1, Guido Deissmann1, Dirk Bosbach1

Deep geological repositories with a multi-barrier concept are foreseen by various countries for the disposal of high-level radioactive waste. Advanced simulation tools based on a detailed process understanding need to…

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A large regional structure from puzzle pieces – Gulf of Mexico structures on the western flank of the Eichsfeld-Altmark-Swell (EAS)?
2023
Alexander Malz1, Jonas Kley2, Heinz-Gerd Röhling3

We discuss the structures associated with the Eichsfeld-Altmark-Swell (EAS) in Central Germany, using observations from published cross-sections, outcrops, few boreholes and reflection seismics in a some 200 kilometres long swath…

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A Late Glacial surface rupturing earthquake at the Peel Boundary faultzone, Roer Valley Rift System, and its morhologic response by the Meuse river
2020
Ronald Van Balen (1,2), Marcel Bakker (2), Kees Kasse (1), Jakob Wallinga (3) & Hessel Woolderink (1)

In a trench along the central part of the Peel Boundary fault zone (PBFZ), Roer Valley Rift System (RVRS), southeastern Netherlands, evidence was found for a large faulting event that…

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A model for the angle of repose of granular materials on planetary surfaces
2022
Filip Elekes1, Eric Josef Ribeiro Parteli2

One of the most important observables characterizing the packing and flowability of particulate systems is the angle of repose, i.e., the angle between the horizontal and the sloping side of…

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A multi-methodological approach to investigate the erosion of arable land caused by the July 2021 flood event in Erftstadt-Blessem, Germany
2022
Joel Mohren1, Steven A. Binnie1, Matthias Ritter1, Tabea Kautz1, Sabine Tiegelkamp1, Tibor J. Dunai1

Severe flooding in July 2021 has caused massive erosion of arable land located close to the village of Erftstadt-Blessem, Germany. Backward incision formed local drainage networks, evacuating Quaternary sediments towards…

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A multi-proxy SST and surface seawater carbonate chemistry reconstruction of the post-Industrial Revolution Southwest Pacific
2021
Sara Todorovic1,2, Henry C. Wu1, Braddock K. Linsley3, Henning Kuhnert4, Albert Benthien5, Klaus-Uwe Richter5, Markus Raitzsch4,5, Jelle Bijma5, Delphine Dissard6

Oceanic uptake of anthropogenic CO2 emissions induced global seawater pH decrease by 0.1 since the Industrial Revolution by altering ocean chemistry with the reduction of carbonate ion concentrations and the…

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A multi-seismic approach to characterize the shallow subsurface for hosting the Einstein-Telescope infrastructure
2023
Marius Waldvogel1, Nils Chudalla2, Shahar Shani-Kadmiel3, Soumen Kouley4, Stefan Back1

Within the feasibility study regarding the construction of the Einstein – Telescope (ET), at a depth of 200 – 350 m in the Meuse-Rhine Euroregio, various seismic methods are used…

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A multiscale numerical modelling investigation of quartz CPO variation due to flow partitioning
2020
Ankit Bhandari & Dazhi Jiang

Quartz crystallographic preferred orientations (CPOs) in natural mylonites can vary to such an extent that they apparently give opposite senses of shear within a single thin section. Many qualitative explanations…

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A new approach for 3d temperatur modelling in areas with sparse data – an example from northern Saxony-Anhalt (Germany)
2020
Jacob Wächter, Christian Olaf Müller, Alexander Malz & Klaus-Jörg Hartmann

Modelling of subsurface temperatures is based on various approaches, which typically focus on interpolation or numerical simulation procedures. Mostly, they are based on few single measurements and do not take…

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A new approach for high-precision triple oxygen isotope analyses of CO2
2022
Andreas Pack1, Malte Seefeld1, Oliver Jäger1, Greta Viktoria Simon1, David Bajnai1

Detection of small variations in triple oxygen isotope ratios (Δ’17O) of rocks, minerals, and water has opened new applications in the field of isotope geochemistry (1,2). A long-standing problem is…

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A new experimental approach for the determination of the diffusivity fractionations of water isotopes in air
2022
Mohammed El-shenawy1, Daniel Herwartz1, Michael Satubwasser1

Water isotopes are key tools to understand the dynamics of the global hydrological cycle. A well constrained hydrological model requires a precise definition of isotopic diffusion and equilibrium fractionation factors…

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A new model of the base of Quaternary deposits in Northwest Germany
2023
Ines Bruns1, Fischer Kerstin1, Meinsen Janine1, Wangenheim Cornelia1

The high-energy processes during the Elsterian glacial stage have formed a diverse relief of the base Quaternary with buried tunnel valleys, which are cut between a few tens of meters…

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A new pachypleurosaur (Reptilia: Sauropterygia) from the Middle Triassic of southwestern China and its phylogenetic and biogeographic implications
2023
Yi-Wei Hu1, Qiang Li2, Jun Liu1

After the devastating Permo-Triassic Mass Extinction, several new groups of large predators invaded the sea in the early part of the Triassic, including sauropterygians, ichthyosauromorphs and thalattosaurs. Among these predators,…

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A new tool to decipher the past silica cycle? The Si isotope signatures of radiolarians: taxa-specific isotope difference and their potential for studying past biogeochemistry
2022
Kristin Doering1

Dissolved silica (DSi) is an essential nutrient for marine silicifiers, and its cycling is closely linked to the biological pump and carbon cycle. The biological uptake of DSi and subsequent…

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A new tool to trace the redox-state of the upper mantle in the Archaean
2023
Craig Storey1, Hugo Moreira2

The redox state of the upper mantle in the Archaean through to the Proterozoic is a key parameter as it would have buffered atmospheric composition and interacted with the ocean-atmosphere…

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A new universal model explaining fracture-trace length distributions
2021
Michael Krumbholz1, Christoph Hieronymus2, Jochen Kamm3

Fracture dimensions largely control rock properties like strength and permeability. Thus, knowing their statistical distributions is of great importance in many applied fields of the geosciences e.g., in geothermics, mineral…

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A normal to incommensurate phase transition in malayaite, CaSnOSiO4
2022
Thomas Malcherek1, Michael Fischer2, Boriana Mihailova1, Carsten Paulmann1

Malayaite, the tin analogue of titanite, has been shown to develop an incommensurately modulated phase with a modulation vector of q=0.26b* at a temperature of 20K [1]. The occurence of…

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A novel Augmented Reality Sandbox for Outreach and Education in Geoscience
2020
Daniel Escallón Botero (1), Simon Virgo (1,2) & Florian Wellmann (1,2)

Seeing Geology is hard! To build an intuitive understanding of complex 3 dimensional structures in the subsurface requires a lot of training. To make this experience more accessible, we present…

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A Novel Web-tool for the Assessment of Materials Recovery and Recycling Projects Aligned with UNFC
2023
Iman Dorri1, Bhagya Jayasinghe1, Alireza Sobouti1, Soraya Heuss-Aßbichler1

The current challenges in our society regarding digital, energy, and circular economy transition have made the recycling and recovery of materials from waste streams a hot topic since they have…

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A Numerical Laterisation Formation Model for Ferricretes
2023
Caroline Fenske1, Jean Braun1, François Guillocheau2, Cécile Robin2

Ferricretes are hard iron layers forming in semi-arid to subtropical environments. We can observe them in i.e. Africa, Australia or Brazil. They are an important part of regional geomorphology, capping…

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A numerical sensitivity study of how permeability, porosity, geological structure, and background hydraulic gradient control the lifetime of a geothermal reservoir
2020
Johanna Frederike Bauer (1), Michael Krumbholz (2), Elco Luijendijk (3)

The utilization of geothermal energy comes with a high economic risk. Many of the parameters that control the quality of a geothermal reservoir are heterogeneously distributed and therefore difficult to…

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A process-based model for fluvial valley width
2023
Jens Martin Turowski1, Aaron Bufe2, Stefanie Tofelde3

The width of fluvial valley-floors is a key parameter to quantifying the morphology of mountain regions. Valley-floor width is relevant to diverse fields including sedimentology, fluvial geomorphology, and archaeology. The…

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A profile through ancient fast-spreading oceanic crust in the Wadi Gideah, Oman ophiolite – reference frame for the crustal drillings within the ICDP Oman Drilling Project
2021
Jürgen Koepke1, Dieter Garbe-Schönberg2, Dominik Mock1, Samuel Müller2

The Oman Ophiolite is the largest and best-investigated piece of ancient oceanic lithosphere on our planet. This ophiolite was target of the Oman Drilling Project (OmanDP) within the frame of…

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A promising sequence stratigraphic approach to identify potential siting regions in claystone formations
2023
Bernhard Schuck1, Thomas Mann1, Jochen Erbacher1, André Bornemann1, Tilo Kneuker1, Géraldine Zimmerli2, Lukas Pollok1

The selection procedure to identify the site “best possible” to host Germany’s repository for the final disposal of its high activity nuclear waste considers claystone, rock salt and crystalline rock…

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A Proof-of-concept study of microbial activity in water-filled pore space: an experimental investigation of methanogenic conversion of hydrogen to methane in reservoir rocks
2023
Saeed Khajooie1, Garri Gaus1, Anja Bettina Dohrmann2, Martin Krüger2, Ralf Littke1

The activation of methanogenic Archaea in the context of subsurface hydrogen storage may lead to permanent hydrogen conversion to methane. The objective of this proof-of-concept study is to experimentally investigate…

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A proposal for drilling “Geiseltal” – a near complete terrestrial section of the Eocene in Central Europe
2023
Stefanie Kaboth-Bahr1, Andrè Bahr2, Christian Zeeden3

As the world warms due to rising greenhouse gas concentrations, the Earth system moves toward climate sthistoricalhout historic precedent, challenging societal adaptation. One way to investigate these unprecedented conditions is…

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A Quaternary fluvial sequence tells the story of a drainage reorganization
2023
Elhanan Harel1, Liran Goren1, Eitan Shelef2, Onn Crouvi3, Naomi Porat3, Hanan Ginat4

Field observations across the globe show that drainage reversal toward a cliff is a common type of drainage reorganization. Drainage reversal occurs when a channel reverses its flow direction by…

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A Review and Database of Landslide Induced Tsunamis
2022
Dohmen, Katrin; Braun, Anika; Fernandez-Steeger, Tomás Manuel

Landslide induced tsunamis are a well-known phenomenon and have been reported many times in the international literature. The research has focused so far on the investigation of individual case studies…

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A Review and Database of Landslide Induced Tsunamis
2022
Katrin Dohmen1, Anika Braun1, Tomás Manuel Fernandez-Steeger1

Landslide induced tsunamis are a well-known phenomenon and have been reported many times in the international literature. The research has focused so far on the investigation of individual case studies…

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A risk-based containment monitoring framework for long term geological CO2 storage
2020
Marcella Dean, Sara Minisini & Steve Oates

Carbon capture and storage (CCS) is a key climate mitigation technology available to meet the Paris Agreement goal for limiting global warning. The goal of CCS projects is to separate,…

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A scientific journey through geo-ecological extremes – landscape dynamics at the lower Danube between the Black Sea and the Carpathian Volcanoes
2020
Markus Finke (1), Ulrich Hambach (2) & Mihai Orleanu (3)

The CTC-Trail (“Coast-to-Carpathians”) is a conceptual educational geo-trail that is being created to guide visitors through a transect from the southern parts of the western Black Sea area grasslands through…

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A systematic approach to develop recommendations for surface exploration of siting regions for a radioactive waste repository in Germany
2021
Lisa Richter, Thies Beilecke, Raphael Dlugosch, Tilo Kneuker, Lukas Pollok, Nicole Schubarth-Engelschall, Ralf Semroch

The site selection procedure for a high-level radioactive waste repository in Germany is based on the Repository Site Selection Act (StandAG, 2017) and comprises three phases. Commissioned by the Bundesgesellschaft…

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A taxonomic Gordian Knot – the sauropodomorph diversity in the Germanic Basin during the Late Triassic
2023
Omar Rafael Regalado Fernández1

The sauropodomorph-bearing localities from the Norian-Rhaetian of Europe have been traditionally interpreted as monospecific, attributing the morphological disparity in Plateosaurus to intraspecific variability. The Norian and Rhaetian stages are currently…

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A Technical Approach to 3D Modelling of the Subsurface Geology in the South-Eastern Harz Foreland
2023
Tilman J. Jeske1, Melanie Siegburg1, Alexander Malz1, Olaf-Christian Müller1, Ivo Rappsilber1

The digitization of geological data is becoming increasingly important in the assessment of the subsurface geology, and 3D visualization offers new possibilities. To extend the visualization of the subsurface geology…

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A terrestrial archive of marine environmental conditions in Antarctica – evidence from snow petrel stomach oil deposits
2022
Sonja Berg1, Louise Emmerson2, Eric Buchta3, Tanja Fromm4, Christine Heim1, Wolf-Dieter Hermichen4, Gerhard Kuhn4, Janet Rethemeyer1, Ulrich Wand4, Michael Zech3, Martin Melles1

In the Southern Ocean microfossil records from marine sediments indicate large shifts in species assemblages and nutrient cycling in response to changing climatic conditions and sea-ice extent during the Late…

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A virtual field tour of the Jurassic Coast, NE England
2020
David Hodgetts

The geological exposures of the Jurassic Coast of North East England cover a variety of depositional systems, from both continental and marine settings, and provide an excellent opportunity for field…

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A virtual field tour of the Wren’s Nest National Nature Reserve, part of the Black Country Unesco Geopark, UK
2021
David Hodgetts

The Wren’s Nest National Nature Reserve, situated in the West Midlands, UK, is well known for its exposures of Silurian (Wenlock and Ludlow Series) carbonates. The Wren’s Nest was first…

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A workflow for investigating the subsurface of post-mining landscapes in Lusatia (Germany)
2023
Silvio Janetz1, Olaf Josafat Cortés Arroyo1, Marcus Fahle1, Anne Gädeke1, Jörg Giese1, Mark Gropius1, Erik Nixdorf1, Benedikt Preugschat1, Elisabeth Schönfeldt1, Bernhard Siemon1

The largest contiguous former opencast lignite mining district in the EU is located in Lusatia (Germany). Hydrochemical contaminations such as acid mine drainage from opencast mines as well as increased…

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a_Ponte, bridging geosciences and society
2022
Bárbara Zambelli1, Talita Gantus2

Science is not good, not bad, or neutral. It is socially built by the subject who operates the research object based on subjectivity (individual and collective).The reduction of reality to…

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Access for free: How to get free-of-charge access to Earth scientific research labs through EPOS-NL and EXCITE
2022
Ronald Pijnenburg1, Oliver Plümper1

Access to top research equipment facilitates top research. However, the research equipment needed may not always be available within individual institutes, while access to external facilities may not in all…

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Accessibility of Geodynamic Models – Teaching Materials Developed Alongside the Open Source Software CHIC
2023
Oliver Henke-Seemann1, Theresa Büttner1, Lena Noack1

To investigate the interior structure, dynamics and evolution of terrestrial planets, numerical models of varying complexity have become an essential tool for many researchers. Modelers often struggle with outreach and…

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Accretion of Rocky Planetary Bodies: Chemical Constraints
2022
Klaus Mezger1, Alessandro Maltese2

All rocky materials originating from small and undifferentiated bodies of the Solar System have similar and close to solar abundances of refractory elements and are depleted to various degrees in…

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Action Plan „Digitalization of the Swiss Geological Subsurface“ 2022 – 2029
2023
Roland Baumberger1

A coordinated and effective use of the subsurface requires in-depth knowledge and easily accessible and uniformly described data. The 2022 Action Plan supports the securing of future investments in the…

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ACTION RESEARCH AND REFLECTIVE PRACTICE: AN INTERVENTION PROGRAMME WITH PRE-SERVICE TEACHERS
2023
Dulce Manuel Lima1, Nir Orion2, Clara Maria Vasconcelos3

Promoting quality education implies that teachers are reflective professionals, agents of innovation and change leaders, able to train students with critical thinking skills, problem-solving, creativity, collaborative work, and communication. In…

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Active engagement of students by means of class exercises
2020
Hans de Bresser,

Utrecht University, The Netherlands In order to improve student learning during lectures on location, students can be actively engaged by giving short class-exercises. Class exercises are just one of the…

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Active tectonics of the eastern Southern Alps
2023
Christoph Grützner1, Manuel Diercks2, Mark Mücklisch1, Erick Prince1, Klaus Reicherter3, Jakob Stubenrauch1, Sumiko Tsukamoto4, Kamil Ustaszewski1, Marko Vrabec5

Current tectonic activity in the eastern Southern Alps is driven by the ongoing collision of Adria with Europe at a rate of ca. 2-3 mm/yr. While the South Alpine Front…

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Additive-controlled synthesis of single crystalline gold nanoparticles
2022
Felizitas Kirner1, Elena V. Sturm1

Nowadays, applications of nanomaterials increasingly demand for monodisperse nanoparticles (NPs), since their defined properties form the basis for a wide range of applications. Gold NPs are of special interest due…

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Adsorption of the drug molecule carbamazepine in zeolites: Studying host-guest and guest-guest interactions with DFT calculations
2022
Michael Fischer1

In the past two decades, pharmaceuticals and personal care products (PPCPs) have been identified as environmental contaminants of considerable concern due to their significant hazard potential. The anticonvulsant drug carbamazepine…

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Advancements in Deep-Sea Mineral Exploration and Legal Aspects of Deep-Sea Mining
2023
Carsten Rühlemann1, Annemiek Vink1, Thomas Kuhn1

The presentation provides an overview of BGR’s deep-sea mineral resource exploration and informs on recent developments in deep-sea mining. Metals such as copper, nickel and cobalt play a vital role…

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Advances in reconstructing paleo-CO2 and ecosystem-climate-CO2 feedbacks through time
2023
Isabel Moñtanez1

Paleo-CO2 reconstructions are integral to understanding the evolution of Earth system processes and their interactions given that atmospheric CO2 concentrations are intrinsically linked to planetary function. Furthermore, past periods of…

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Advances in terrestrial and marine carbonate archives – novel proxies and innovative techniques to decipher past climate variability
2021
Riechelmann, Dana Felicitas Christine (1); Hansen, Maximilian (1); Warken, Sophie (2); Weber, Michael (1)

The use of carbonate-based paleoclimate archives has gained increasing importance to obtain reliable and detailed information on past climate and environmental variability in order to better understand the modern climate…

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Advances in understanding processes driving the formation and evolution of sedimentary basins
2021
Matenco, Liviu (1); Scheck-Wenderoth, Magdalena (2); Nader, Fadi Henri (3)

This session addresses the dynamics of sedimentary basins at different temporal and spatial scales and aims to bring together a wide range of studies focusing on geodynamics, tectonics and sediment…

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Aeolianites of the Detfurth Formation (Middle Buntsandstein, Lower Triassic) in the Hessian Depression: spatial distribution and stratigraphic affiliation with regard to modern stratigraphic concepts and use in applied geosciences
2021
Nicola Hug-Diegel

This talk focusses on the Detfurth Formation of the Hessian Depression and aims to point out a modern way of subdividing the sedimentary record, serving as a profound basis in…

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Age differences between separate magma pulses in two laccoliths (Halle Volcanic Complex): insight into processes of silicic magma formation
2022
Arkadiusz Przybyło1, Anna Pietranik1, Christoph Breitkreuz2

The Halle Volcanic Complex includes several laccoliths emplaced during Carboniferous-Permian flare-up (Breitkreuz & Kennedy, 1999). Previous dating of the laccoliths yielded a range of ages from 301±3 Ma (Landsberg) to…

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Age-depth model derived from borehole logging and seismic data – sedimentological evolution of Lake Ohrid (North Macedonia/Albania) for the last 1 million years
2020
Arne Ulfers (1), Christian Zeeden (1), Bernd Wagner (2), Sebastian Krastel (3) & Thomas Wonik (1)

To understand the evolution of lake basins, a robust age-depth model is essential. Usually, such model is created based on core material using various dating techniques (e.g. radiometric dating, magnetostratigraphy,…

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Airborne geophysical investigation of former opencast lignite mining areas using machine learning and other techniques
2023
Olaf Josafat Cortes Arroyo1, Bernhard Siemon1, Silvio Janetz1, Marcus Fahle1, Elisabeth Schönfeldt1

As part of project D-AERO Finsterwalde, the “Bundesanstalt für Geowissenschaften und Rohstoffe” (BGR) carried out an airborne geophysical study in a former opencast lignite mining area in summer 2021. The…

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Al, Si interdiffusion in Al-bearing bridgmanite under lower mantle conditions: Analytical TEM study
2022
Laura Czekay1, Nobuyoshi Miyajima1, Catherine McCammon1, Daniel Frost1

Diffusion studies in minerals are a fundamental tool for understanding the rheological properties of Earth’s mantle. Previous theoretical studies on deformational strain rates show that the key mechanism for deformation…

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Alchemy in Mannheim? – Mineralogical and chemical analysis of 17th-18th century technical ceramics and lead glazed earthenware.
2022
Marcel Frenken1, Roland Schwab2, Silvia Amicone1, Christoph Berthold1, Klaus Wirth3, Susanne Greiff4

This presentation focuses on technical ceramics from various early Modern dumping contexts ranging from a well to latrine and surface fills within in the former city walls of Mannheim. Additionally…

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Alkali depletion as a trigger for degassing of hydrous melts in magma injection processes
2022
Patricia Louisa Petri1, Anja Allabar1, Marcus Nowak1

The injection of mafic magma into a hydrous felsic magma chamber is a potential trigger mechanism for bimodal explosive volcanism. Contact of hot mafic magma with cooler, H2O-rich rhyolitic magma…

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Along-strike variations in the timing of exhumation in the eastern Peruvian Andes
2021
Sarah Falkowski, Todd A. Ehlers

Different controls and couplings between tectonics and climate-driven erosion have been suggested to explain the topographic and structural architecture of the Andes. One aspect of controversial discussions is the late…

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Alpine and Variscan peak pressures of different rock types from the Adula Nappe (Central Alps) determined by Raman spectroscopy of quartz inclusions in garnet
2023
Olga Brunsmann1, Marisa Germer1, Alexandra Pohl2, Victoria Kohn3, Vincent Könemann1, Xin Zhong1, Timm John1, Jan Pleuger1

The Adula nappe in the Swiss-Italian Central Alps is a continental basement nappe from the former European margin that was subducted to depths indicating (ultra)-high-pressure conditions. Many studies were performed…

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Alpine Hydrogeology
2021
Sass, Ingo; Schäffer, Rafael

This session is thematically broad and include all topics related to research on the hydrosphere of alpine regions of the world both in humid and arid climate. We welcome contributions…

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Alpine lithospheric strength and its relation to seismicity distribution
2020
Cameron Spooner(1,2), Magdalena Scheck-Wenderoth (1,3) & Mauro Cacace (1)

Despite the amount of research focused on the Alpine orogen, different hypotheses still exist regarding varying seismicity distribution patterns throughout the numerous crustal blocks of different physical properties that comprise…

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Alteration of basalt mineral surfaces at hydrothermal conditions: Insights into reaction mechanics during solid-fluid interactions.
2022
Mathias Peter1, Hannah Rose Babel2, Steffen Leth Jorgensen2, Wolfgang Bach1, Andreas Luttge1

The analysis of solid-fluid interactions in nature is crucial for our understanding of material fluxes and sub-surface stability. However, there is still a significant quantitative and qualitative difference between dissolution…

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Alterations at the post-Variscan nonconformity: implications of Permo-Carboniferous surface weathering and burial diagenesis (Sprendlinger Horst, Germany)
2020
Fei Liang (1), Jun Niu (2), Adrian Linsel (1), Matthias Hinderer (1), Dirk Scheuvens (1) & Rainer Petschick (3)

The post-Variscan nonconformity formed due to the denudation of the Variscan orogen which had taken place between Devonian and early Permian. The widespread post-Variscan nonconformity in central Europe represents an…

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Aluminium is Now Critical – Enabling UNFC-Compliant Classification for a German Aluminium Scrap Recovery Project
2023
Marina von Vietinghoff-Scheel1, Nathalie Korf1, Thorsten Greb2, Vera Susanne Rotter1

The United Nations Framework Classification for Resources (UNFC) is an assessment tool for mineral resource endowments, originally developed for side-projects concerning geogenic resources, such as mines. Given the integration of…

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Ambiguity of provenance studies in complex source-to-sink settings – sediment recycling, basement exhumation and signal mixing in the Schilfsandstein (Central European Basin)
2023
Matthias Franz1, Sebastian Niegel1, Karsten Obst2, Armin Zeh3

Provenance studies in the Central European Basin are challenged by the complex geology of source areas. The Variscan orogen represents a puzzle of Cadomian terranes, Variscan-aged domains and Palaeozoic sediments…

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Amelogenesis and tribosphenic molars: patterns and variation.
Ivan Horacek (1), Pavla Hanouskova (1) & Anna Kallistova (2)

The tribosphenic molar presents phylotypic stage of the mammalian dental evolution. A study of its enamel microarchitecture in several clades (Chiroptera, Afrosoricida, Eulipotyphla, Didelphomorhia, Cetartiodactyla) revealed, apart of considerable taxon-specific…

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An anatectic model for albite-spodumene pegmatites from the Austroalpine Unit (Eastern Alps)
2020
Tanja Knoll (1), Benjamin Huet (1), Ralf Schuster (1) & Heinrich Mali (2)

Albite-spodumene pegmatite are considered to be the product of extreme fractionation of melts or fluids deriving from large alkaline granite intrusions. Anatectic melts deriving from partially molten metasediments are in…

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An archive of many hats: speleothems for coupled climate and ecosystem reconstructions
2021
Franziska Anna Lechleitner

Speleothems are secondary cave carbonate deposits and an established terrestrial paleoclimate archive. Moreover, they have the potential to record conditions in the ecosystem overlying the cave, particularly the vegetation and…

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AN ARMORED MARINE REPTILE FROM THE EARLY TRIASSIC OF SOUTH CHINA AND THE PHYLOGENY OF ARCHELOSAURIA
2023
JUN LIU1, ANDRZEJ S. WOLNIEWICZ1, YUEFENG SHEN1, QIANG LI1, YU QIAO1, YUANYUAN SUN1, YI-WEI HU1, YAJIE CHEN1

Sauropterygia was a taxonomically and ecomorphologically diverse clade of Mesozoic marine reptiles spanning the Early Triassic to the Late Cretaceous. Sauropterygians are traditionally divided into two groups representing two markedly…

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An assessment of geothermal energy potential for power generation in Iran
2021
Mirmahdi Seyedrahimi-Niaraq1, Reza Taherdangkoo2, Faramarz Doulati Ardejani3

Energy generated from geothermal systems is a good alternative to non-renewable fossil fuels and plays an important role in reducing greenhouse gas emissions. Geothermal energy is generated from the inner…

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An ecological assessment of southern Alaska through observations of floristic change, fire regime and volcanism.
2023
Sophie Carter McSherry1, Dr Lauren Jade Davies1, Dr Matthew Adesanya Adeleye1

Defining patterns of environmental or ecological change on different spatio-temporal scales is key to tracking and addressing present and future biodiversity changes, which is particularly important considering the rapidly changing…

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An example of continuous plutonism during orogenesis – The emplacement of the Bassiès pluton in the central Pyrenees (SW-France)
2023
Stephan Schnapperelle1, Michael Stipp1, Mandy Hofmann Zieger2, Johannes Zieger2, Ulf Linnemann2

The Axial Zone of the Pyrenees represents a window into the Variscan evolution of the northern Gondwana margin. One enigma of this evolution is the origin of the many and…

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AN INTERDISCIPLINARY APPROACH FOR CHARACTERIZING ANCIENT MATERIALS: BUILDING MATERIALS FROM THE HELLENISTIC-ROMAN CITY OF SOLUNTO (SICILY) AS A CASE OF STUDY
2022
Beatrice Boese1, Silvia Amicone1, Emma Cantisani2, Frerich Schön3, Christoph Berthold1

This presentation gives an overview of the advantages combining thin-section optical petrography with X-ray microdiffractometry (µ-XRD2) and scanning electron microscopy with energy dispersive spectroscopy (SEM-EDS) for the analysis of well…

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An introduction to Landslide Susceptibility Assessment Tools – Project Manager Suite
2021
Nick Schüßler, Jewgenij Torizin, Michael Fuchs

Landslide Susceptibility Assessment Tools – Project Manager Suite (LSAT PMS), an open-source, user-friendly program written in Python developed and released at the Federal Institute for Geosciences and Natural Resources (BGR)….

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Analogue studies for potential geothermal reservoirs in the Ruhr district, Germany: What can we expect?
2023
Felix Jagert1, Adrian Immenhauser2, Stefan Wohnlich3

Deep geothermal power plants are baseload-capable and can serve as substitutes for fossil fuel power plants. In the Ruhr region of Germany, a densely populated area with high energy demand,…

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Analyses of geophysical borehole data of Prees-2 (England) as part of the ICDP JET project
2021
Katharina Leu, Thomas Wonik, Christian Zeeden

In the end of 2020, an approx. 650 m deep core was drilled at Prees in Shropshire, England, as part of the ICDP project JET (Integrated Understanding of the Early…

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Analysis of changes of the vegetation condition on the area of the closed Prosper Haniel mine using multispectral satellite and drone images.
2022
Marcin Pawlik1, Maik Gellendin2, Bodo Bernsdorf3, Tobias Rudolph3

Mining and post-mining processes have a significant impact on the environment. An important current task and challenge is therefore the continuous monitoring of mining areas. The project „Digital Twin –…

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Analysis of continent-scale geological maps
2021
Anke M. Friedrich

Geological maps are important products of geological work that display results of generations of field geologists’ work. Most original geological maps are generated and utilized at local scales. At regional…

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Analysis of fluid migration pathways in the context of CO2 underground storage in the German North Sea using high-resolution 3D and 2D seismic data
2023
Niklas Ahlrichs1, Axel Ehrhardt1, Michael Schnabel1, Arne Fuhrmann1, Heidrun Stück1

For successful and safe underground CO2 storage, a profound knowledge of the subsurface and its geological structures characterizing the selected reservoir is essential. Besides robust geological models and storage capacity…

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Analysis of surface displacements caused by mine flooding for the project FloodRisk with SAR Interferometry
2022
Markus Even1, Malte Westerhaus1, Hansjörg Kutterer1

During the last decades, one hard coal mine in Germany after the other stopped production and entered the post-mining phase. The last pits that terminated active mining were Ibbenbüren and…

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Analysis of surface displacements caused by mine flooding for the project FloodRisk with SAR Interferometry, GNSS and Levelling
2021
Markus Even1, Malte Westerhaus1, Daniel Schröder2

After operation of hard coal mines has been terminated in Germany, many of the mines are being flooded. In the project “FloodRisk: Earthquakes, uplift, and long-term liabilities – risk minimization…

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Analysis of surface karst phenomena in Devonian carbonates in North Rhine-Westphalia – context to geothermal exploration
2023
Manfred Heinelt1, Mathias Mueller2, Adrian Immenhauser2

The deep geothermal reservoir potential in North Rhine-Westphalia was assessed in Devonian carbonates (Massenkalk) in the Steltenberg Quarry in Western Germany. The karstification phenomena of the carbonates were recorded utilising…

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Analysis of the spatial distribution of low permeability layers on high-temperature aquifer thermal energy storage
2023
Stefan Heldt1, Sebastian Bauer1

High-temperature aquifer thermal energy storage (HT-ATES) is a heat storage technology utilising the subsurface, which can reduce greenhouse gas emissions in renewable-dominated heating sectors. Since the temperature difference between the…

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Analyzing the susceptibility for coastal and submarine landslides and their potential to trigger tsunami waves
2023
Katrin Dohmen1, Anika Braun1, Tomás M. Fernandez-Steeger1

Tsunamis generated by submarine or coastal landslides are a growing area of scientific interest. Events like the 2018 tsunami in Palu, Indonesia, have highlighted their destructive potential. Landslides can generate…

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Andean uplift and consequences for species evolution in the Amazon drainage basin
2022
Carina Hoorn1

The Neogene uplift of the Andes strongly influenced environments, geography, and climate through time. In combination with global climate, sea level change and dynamic topography, this process (re)shaped the biogeography…

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Anisotropy of the mica rich lithologies in the north-western Tauern Window (Eastern alps, Austria)
2023
Dustin Lang1, Michael Stipp1, Rebecca Kuehn1, Rüdiger Kilian1

Anatomy and internal structure of the Alpine orogen are difficult to decipher as structural information is usually limited to surface and seismic data. Seismic results very much depend on the…

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Anoxia – Driver of the Late Permian Mass Extinction in shallow marine basins?
2022
Anja Frank1, Stephen Grasby2, William Foster1

The Late Permian mass extinction (LPME) was the most catastrophic extinction of marine life during the Phanerozoic. Widespread marine deoxygenation associated with the eruption of the Siberian Traps is considered…

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Antarctic sea ice reconstructions: pros and cons of highly branched isoprenoids as sea ice proxies
2021
Nele Lamping1, Wee Wei Khoo1, Juliane Müller1,2, Oliver Esper1, Thomas Frederichs2, Christian Haas1

The reconstruction of past Antarctic sea ice coverage through the application of diatom assemblages is often hampered in near coastal environments due to silica dissolution effects. The more recently established…

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Anthropogenic Gadolinium and Other Emerging Contaminants in the Southern North Sea and the Elbe, Ems and Weser Estuaries
2022
Dennis Krämer1, Katja Schmidt1, Franziska Klimpel2, David Ernst2, Erika Kurahashi2, Sophie Paul3, Andrea Koschinsky2, Michael Bau2

In the last decades, many trace elements that were hitherto only used as geochemical proxies gained societal and economic importance due to their increasing use in high-technology applications including medicine…

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Application of digital media and interactive technologies in popular palaeontology education
2020
Tong Bao (1,2), Hongyi Liu (2), Takashi Ito (2) & Katarzyna S. Walczyńska (2,3)

As an important component of natural science education, popular palaeontology education developed rapidly worldwide. Traditional offline public lectures, guide tours and peripheral products represent the main implementations. With the appearance…

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Application of in-situ U-Pb-He double-dating on detrital zircons – an example of Alpine sediments from the Inn river and its tributaries
2021
Falko Malis, István Dunkl, Hilmar von Eynatten

In-situ U-Pb-He double-dating of detrital zircon provides information regarding formation and cooling ages of source rocks. Its advantage over conventional dating methods is the unique ability to obtain a high…

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Application of isotopes to study groundwater surface water interactions in the German Lusatian mining district – a first characterization
2023
Paul Königer1, Anne Gaedeke1, Maike Gröschke1, Silvio Janetz1

The hydrology and hydrogeology of the German Lusatian mining district has strongly been impacted by open pit lignite mining. During active mining, mines are dewatered to lower the groundwater tables…

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Application of U-Pb LA-ICP-MS dating to unravel climate evolution and surface processes
2022
Richard Albert1, Axel Gerdes2, Eduardo Campos3, Juan Cristóbal Ríos Contesse3, Aline Zinelabedin4, Benedikt Ritter4, Volker Wennrich4, Tibor Dunai4

Geochronological tools may play an important role in understanding the coupled evolution of biosphere and Earth surface processes. Intermittent wet periods in arid and hyper-arid environments drive mineral precipitation and…

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Applications in 3D Geological Modelling
2021
Lehné, Rouwen Johannes (1); Baumberger, Roland (2); Steuer, Stephan (3)

Over the last decades, 3D geological modelling has become a standard in hydrocarbon exploration and production, has been adopted and is developing towards a systematic effort by geological surveys, and…

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Applications of fallout plutonium at the University of Cologne to resolve Anthropocene Earth (sub-)surface processes
2022
Joel Mohren1, Steven A. Binnie1, Erik Strub2, Stefan Heinze3, Tibor J. Dunai1

Anthropogenic fallout radionuclides (FRNs), in particular 137Cs, are frequently measured to investigate Anthropocene sediment or soil particle redistribution patterns and rates. However, applications of 137Cs can be complicated due to…

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Applications of virtual reality to Geoscience
2020
Claudia Ruiz-Graham

Field trips are essential for geologists and engineers to develop interpretation skills and to get a sense of scale. Unfortunately, attendance to field trips has become less frequent due to…

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Applied Metadata – The Helmholtz Metadata Collaboration HMC
2023
Andrea Pörsch1, Emanuel Söding2, Kirsten Elger3

Metadata, i.e. ‚data about data‘, are fundamental for making research data findable, usable and understandable by researchers and all interested parties now and in the future. Moreover, with the advent…

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Applied mineralogy for sustainable use of materials
2022
Claudia Weidenthaler1

Adapting nature offers a wide variety of opportunities to create advanced materials in the laboratory that find their templates in natural minerals. Materials, which are nowadays gaining increasing importance, are…

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Applying astrochronology to reconstruct sedimentation rate and time from downhole logging data at Lake Chalco, Central México
2020
Mehrdad Sardar Abadi, Christian Zeeden, Arne Ulfers, Katja Hesse & Thomas Wonik

Understanding the evolution of lower latitude climate from the most recent glacial period of the latest Pleistocene to post glacial warmth in the continental tropical regions has been obstructed by…

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Applying coupled numerical model in the design of ATES facility in a contaminated urban environment
2023
Maximilian Dörnbrack1, Chaofan Chen2, Holger Weiß1, Haibing Shao1

Within the KONATES project, an Aquifer Thermal Energy Storage (ATES) system is planned in the scientific park of Leipzig, where the groundwater is contaminated with chlorinated volatile organic compounds (Cl-VOCs)….

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Approach for the development of a radon potential map for the Darmstadt area
2021
Anastasia Vogelbacher1, Rouwen Lehné1,2, Eric Petermann3

Radon (Rn)is a naturally occurring, radioactive gas that is considered an indoor air pollutant. Due to its negative effects on human health, a Germany-wide „Radon Potential Action Plan“ was implemented…

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Approaches to Sustainably Develop the Subsurface Potential for Storage and Disposal
2021
Wippich, Max (1); Raith, Alexander (1); Popp, Till (2); Henk, Andreas (3); Müller, Birgit (4)

To accomplish the energy transition, new methodologies and technical solutions for the storage of renewable energies need to be developed. A fundamental challenge lies in the fact that energy production…

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Aquatic biomonitors and biomarkers reveal temperature and environmental changes during the Thirty Years‘ War: A case study from Bad Waldsee, Germany
2023
Paula Echeverría-Galindo1, Thorsten Bauersachs2, Kim Krahn1, Antje Schwalb1, Matthias Hinderer3

The Thirty Years‘ War (1618-1648) had significant consequences for both human populations and natural ecosystems in Europe. To gain a better understanding of its impact on the local aquatic environment,…

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Archaean greenstone belts of the Singhbhum Craton, India–windows into early Earth
2022
Jaganmoy Jodder1, Axel Hofmann2

Archaean greenstone belts offer the opportunity to study the dynamic conditions on early Earth. The Singhbhum Craton of India hosts several volcano-sedimentary greenstone sequences that preserve Archaean rocks locally exceeding…

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Archaeometry – tracing the past human footprint with geosciences
2022
Thilo Rehren1

Recent debates around the recognition (or otherwise) of an Anthropocene, and the impact of climate change on the human experience emphasize the fact that ‘we humans’ are an integral part…

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Are magnesium stable isotopes a valuable geochemical tool in agronomy?
2022
David Uhlig1, Bei Wu1, Anne Berns1, Wulf Amelung2

A sustainable use of soil resources is urgently required to cope with the increasing demand for agricultural products. Advanced soil cultivation methods like subsoiling were suggested but analytical tools to…

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Are molluscs a reliable archive for stable isotope paleo-temperature reconstructions? Implications from dual clumped isotope thermometry
2023
Vanessa Schlidt1, David Evans2, Niels de Winter3, Miguel Bernecker1, Amelia Jane Davies1, Iris Arndt1, Philip Tauxe Staudigel1, Mattia Tagliavento1, Wolfgang Müller1, Jens Fiebig1

Shell carbonates of marine molluscs are a widely used archive for paleo-environmental reconstructions. However, their use for temperature reconstructions may be impeded by species-specific vital effects and/or a lack of…

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Are we sharing our data and software yet? Community, tools, incentives – and flexibility
2021
Shelley Stall

The culture around sharing our data and software is evolving. Funders are starting to provide more clarity and requirements. Institutions are working to provide support and incentives. And journals are…

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Aridification in the terrestrial record: A case study from the Nullarbor Plain of southern Australia
2022
Maximilian Dröllner1, Milo Barham1, Christopher L. Kirkland1, Martin Danišík2, Julien Bourdet3, Maike Schulz4, Aspandiar Mehrooz5

The Nullarbor Plain in southern Australia is an extensive treeless area (ca. 200,000 km2), almost devoid of surface water, reflecting the modern expression of Plio-Pleistocene aridification. The rapid climatic shift…

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Artificial clay mineral alignment during sedimentation and early compaction
2023
Dustin Lang1, Rebecca Kuehn1, Rüdiger Kilian1

The formation of crystallographic preferred orientations (CPO/texture) in sediments is often attributed to rigid grain rotation of minerals and aggregates, plastic-brittle deformation and dissolution-precipitation processes. Especially, clay minerals have a…

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ARTIFICIAL INTELLIGENCE AS TOOL TO PREDICT GEOHAZARDS: READINESS TO ACCEPT AND IMPLEMENT
2020
Shrawani Shagun Jha

Geological hazards or Geohazards, natural or human-induced disruptions of the earth surface that may trigger landslides, sinkholes, or earthquakes, present serious threats to communities, cost extensive damage to infrastructure and…

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Artificial Intelligence in Geosciences
2021
Liesch, Tanja (1); Broda, Stefan (2)

With its successful application in diverse disciplines, Artificial Intelligence (AI), especially Machine Learning, has recently also become more and more popular in geosciences, particularly in the advent of increasingly affordable…

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Artificial Intelligence in Geosciences: Time for a paradigm shift
2021
Gunnar Lischeid

Geosciences face a dramatic increase of high quality data as well as of powerful artificial intelligence approaches. These new techniques, however, have mostly been limited to applications to pre-existing research…

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Artificial neural networks acting as geothermometer for reservoir temperature estimation
2021
Mark Vollmer, Lars Helge Yström, Fabian Nitschke, Thomas Kohl

The application of geothermometry has been used for the last six decades for geothermal reservoir temperature estimation. A steady evolution of conventional geothermometers to multicomponent tools as well as application…

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Asbestos detection in buildings to prevent contamination of the recycling material stream
2022
Sophie Friedrich1, Martin Hönig1, Hans-Dieter Bossemeyer1, Sandra Giern2

The BMBF-funded research project “RECBest” aims at developing reliable methods for the detection and removal of hazardous building materials before demolition and at enhancing the resulting recycling material (RCM) through…

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Asbestos in construction waste – presence and recognition of asbestos containing materials
2022
Jan Schaumann1, Martin Hönig2, Hans-Dieter Bossemeyer3, Christine Achten4

Construction waste (CW) from demolished buildings delivers a vast amount of resources for recycling material (RCM). RCM can be used as gravel, recycling-concrete or potentially for more precious applications. Hazardous…

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Asphalt formation at the seafloor of the Campeche-Sigsbee salt province, southern Gulf of Mexico
2021
Gerhard Bohrmann1, Miriam Römer1, Chieh-Wei Hsu2, Thomas Pape1, Yann Marcon1, Ian MacDonald3, Paul Wintersteller1

Hydrocarbon seepage is widespread distributed at the southern Gulf of Mexico. During several research cruises in 2003, 2006, and 2015 (SO174, M67/, and M114) we used multidisciplinary approaches, including multi-beam…

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Assessing and improving the groundwater quality monitoring network of the State of Brandenburg, Germany
2023
Florian Jenn1, Patrick Wieder1, Silvia Dinse1, Tania Birner2, Ute von Daacke2

The project “Groundwater Quality Monitoring Network Improvement 2021/2022” aimed to assess and improve the groundwater quality monitoring network of the Environmental Agency of the State of Brandenburg, Germany. This comprised…

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Assessing diagenetic stability of enamel bioapatite oxygen isotope compositions by alteration in isotopically enriched tracer solution
2022
Thomas Tütken1, Katrin Weber1, Hubert Vonhof2, Michael Wiedenbeck3

Oxygen isotope compositions in enamel bioapatite are considered as robust proxy archives for ingested drinking water, body temperature and physiology of fossil vertebrates. However, only few alteration experiments have tested…

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Assessing Eocene hydrological pattern by reconstructing seasonally enhanced fluvial discharge into marginal seas
2022
Jorit F. Kniest1, David Evans1, Amelia Davies2, Jens Fiebig2, Jonathan A. Todd3, Julia D. Sigwart4, Wolfgang Müller1, Silke Voigt1, Jacek Raddatz1

Shifts in the hydrological cycle, such as the location and magnitude of seasonal precipitation, are changing as a result of current climate change. The Eocene, as the warmest epoch during…

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Assessing sediment accumulation at inundated anthropogenic marshland in the southern North Sea: Using turbidity measurements and particle tracking
2020
Ingo Jürgen Hache (1), Sebastian Niehüser (2), Volker Karius (1), Arne Arns (3) & Hilmar von Eynatten (1)

New approaches to coastal protection measures become increasingly important to protect for or to mitigate sea level rise (SLR) worldwide. Measures that involve only the heightening of dykes or revetments…

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Assessing the belemnite archive for Mesozoic seawater temperature reconstruction by clumped isotope thermometry
2023
Amelia Jane Davies1, Philip Staudigel1, Mattia Tagliavento1, Gregory Price2, Miguel Bernecker1, Julia Brugger3, Jens Fiebig1

The reconstruction of Mesozoic seawater temperature is valuable to further understand the link between atmospheric carbon dioxide concentration and earth surface temperature variation. Belemnites are an effective archive for this…

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Assessing the potential impact of fractures on heat extraction from tight Triassic reservoirs in the West Netherlands Basin
2020
Quinten Diede Boersma (1), Pierre Olivier Bruna (1), Stephan de Hoop (1), Francesco Vinci(2), Ali Moradi Tehrani (3) & Giovanni Bertotti (3)

Heat production from low permeability reservoirs is believed to be significantly aided by the presence of open natural fractures (e.g. Upper Rhine Graben). However, in hot sedimentary aquifer studies these…

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Assessing the role of microbes and the chemical conditions necessary for the formation of microbialites
2022
Karim Benzerara1, Jeanne Caumartin1, Robin Havas2, Christophe Thomazo2, Miguel Iniesto3, Purificacion Lopez-Garcia3, David Moreira3, Elodie Duprat1

Microbialites are organosedimentary deposits formed by benthic microbial communities that mediate mineral precipitation. They have received particular attention since they are found throughout the geological record up to 3.43 billion…

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Assessment of Eger Rift subsurface microbial communities showcases archaeal and bacterial processes driven by mantel derived CO2 degassing and regular seismic events.
2023
Daniel Lipus1, Zeyu Jia1, Alexander Bartholomaeus1, Robert Bussert2, Dirk Wagner3, Jens Kallmeyer1

Seismic activity and consistently high CO2 fluxes make the Eger Rift in Western Bohemia (CZ) a rare subsurface ecosystem and scientifically relevant location to study microbial behavior and assess how…

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Assessment of High Temperature Aquifer Storage Potential in Depleted Oil-Reservoirs from the South German Molasse Basin
2021
Ulrich Steiner, Florian Bauer, Katharina Schätzler, Kai Robin Stricker, Eva Schill

In the discussion about the future role of geothermal in the energy transition policy, the topic of underground heat storage became recently more and more prominent. High Temperature Aquifer Storage…

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Assessment of hydrogeochemical processes in two potential HT-ATES reservoirs in Berlin using core analysis, laboratory experiments and geochemical modelling
2023
Lioba Virchow1, Simona Regenspurg1, Ali Saadat1

While the share of renewable energy in the electricity sector is steadily increasing, it has stagnated in the heat supply, despite the fact that in Berlin, for example, more than…

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Astronomical calibration of the Early Jurassic Sinemurian Stage based on cyclostratigraphic studies of downhole logging data of the Prees-2 borehole, England (ICDP JET Project)
2023
Katharina Leu1, Christian Zeeden1, Arne Ulfers2, Micha Ruhl3, Stephen Peter Hesselbo4, Thomas Wonik1

In late 2020, an approximately 650 m long core was drilled at Prees within the Cheshire Basin, England, as part of the ICDP project JET (Integrated Understanding of the Early…

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Astronomical climate forcing of ~2.5 Ga banded iron formations
2020
Margriet L. Lantink (1), Joshua H. F. L. Davies (2,3), Rick Hennekam (4), Frederik J. Hilgen (1), David McB. Martin (5), Paul R. D. Mason (1), Gert-Jan Reichart (1,4) & Urs Schaltegger (2)

Large-scale banded iron formations (BIFs) were deposited during Neoarchean to early Paleoproterozoic and have been mainly linked to hydrothermal plume activity and the rise of oxygen in the ocean and…

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Astronomically forced sphalerite growth circulation in the Upper Mississippi Valley District, USA
2020
Mingsong Li & Hubert Barnes

Groundwater plays an essential role in global water cycles via feedback between groundwater and climate systems. However, the geologic history of groundwater activity remains unclear due to limited data. Sphalerite…

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Asymmetric river incision records the Quaternary uplift of the Rhenish Massif
2023
Philipp Balling1, Silvia Kolomaznik1, Christoph Grützner1, Kamil Ustaszewski1

The topography of the Rhenish Massif is known to be affected by Late Cenozoic uplift. Recent GNSS studies imply surface uplift rates of up to 1 mm/a, likely controlled by…

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Atacama Desert soils as potential habitat for life at the extreme dry limit
2022
Ramona Mörchen1, Eva Lehndorff2, Roland Bol3, Erwin Klumpp3, Franko Arenas-Diaz4, Humay Rahimova2, Barbara Fuentes4, Wulf Amelung1

In the soils of the Atacama Desert its evolutionary history is buried and thus memorized. This is because of the extreme and prolonged dryness, which enabled the preservation of organic…

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Atmospheric Dynamics of a Near Tidally Locked Earth-Size Planet
2023
Stephen Kane1

The discovery and characterization of Earth-sized planets that are in, or near, a tidally-locked state are of crucial importance to understanding terrestrial planet evolution, and for which Venus is a…

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Au analysis by pressed-powder-pellets (PPP)-LA-ICP-MS
2022
Clifford G.C. Patten1, Aratz Beranoaguirre1, Simon Hector1, Dominik Gudelius2, Jochen Kolb1

Analysis of Au in geological materials has been proven useful for understanding geological processes related to the formation of various Au-rich ore deposits. However, the Au concentration in the source…

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Authority, Identity and Ethics of Data Re-publication and Duplication
2021
Lesley Wyborn1, Kirsten Elger2, Jens Klump3, Kerstin Lehnert4, Mingfang Wu5

Today, research data is widely available in digital form, datasets are easily accessible online and the dataset creator should consider it advantageous as this leads to greater uptake. However, the…

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Automated heavy mineral analysis of silt-sized sediment by artificial-intelligence guided Raman Spectroscopy
2021
Nils Keno Lünsdorf1, Jan Ontje Lünsdorf3, Gábor Újvári2, Hilmar von Eynatten1

Compositional data on heavy minerals is fundamental in sedimentary provenance analysis. Typically, this data is gathered by optical microscopy and more recently, by mineral chemical analysis (MLA, QEMSCAN) or Raman…

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Automatic classification of benthic foraminifera for biomonitoring studies
2023
Tobias Walla1, Christine Barras2, Emmanuelle Geslin2, Louis Lanoy2, Jean-Charles Mazur3, Camille Godbillot3, Ross Marchant3, Thibault de Garidel-Thoron3

Living benthic foraminifera are used as environmental proxies to evaluate the quality of marine ecosystems. This evaluation is usually based on diversity indices and/or on a group of indicative species…

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Automatisation of sparse cloud cleaning in Agisoft Metashape Professional (ver. 2.x)
2023
Joel Mohren1, Maximilian Schulze1

The U.S. Geological Survey (USGS) has recently published a guideline for processing coastal imagery acquired by unmanned aerial vehicles (UAVs) based on the widely used Agisoft Metashape Professional software (USGS…

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Balancing the oceans alkalinity budget by physical weathering of carbonate rocks
2020
Gerrit Müller, Jack Middelburg & Appy Sluijs

Alkalinity, the excess of bases over acids, is a frequently used conservative variable in Biogeochemistry and Oceanography to calculate carbonate system parameters and estimate the oceans susceptibility to acidification. On…

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Barite precipitation was associated with low temperature hydrothermal venting in the 3.2 Ga Mapepe Formation, Barberton Greenstone Belt
2020
Paul Mason (1), Desiree Roerdink (2) & Dylan Wylmeth (3)

Sulfate minerals are rare in the geological record prior to 2.2 Ga. This is consistent with prevalent anoxic conditions in the Earth’s surface environment prior to the great oxidation event,…

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Basaltic Dykes and xenoliths from the Kiama-Gerroa Region, New South Wales, Australia
2020
Samar Usamah Abu Shamma (1), Ian Graham (1), Paul Lennox (1) & Glen Bann (2)

Multiple dykes situated along the southeastern Australian coastline from south of Kiama to Gerroa were examined in detail. The results of geochemical analysis indicate the dyke’s composition varies from sub-alkaline…

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Basalts from the intratransform domain at the Doldrums Megatransform (7-8° N MAR) reveal mantle re-melting
2022
Camilla Sani1, Alessio Sanfilippo2, Felix Genske3, Sergey Skolotnev4, Marco Ligi5, Andreas Stracke3

In the Equatorial Mid Atlantic Ridge at 7-8°N the Doldrums Fracture Zone (FZ) is located: a complex transform system characterized by four ‘intratransform’ ridge segments (ITRs) bounded by five active…

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Basic implementation for a 3D-viewer with web technology
2021
Michael Wolf, Rüdiger Reimann, Silvia Dieler, Jennifer Ziesch

The presentation of 3D-data is gaining a crucial role for the government agencies in Germany. With the introduction of new federal laws on data storage and release, it became important…

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Battery metal exploration targets in the Erzgebirge from stream sediment geochemistry and mineral predictive mapping with self-organizing maps
2021
Andreas Brosig, Andreas Barth, Peggy Hielscher, Claus Legler, Stefan Schaefer, Peter Bock, Andreas Knobloch

A 50-element stream sediment geochemistry survey with a sample density of one sample per km² shows anomalies for a number of high technology metals, including Sn, W and the battery…

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Behavior of chemically zoned acicular mullite fibers annealed at high temperature
2022
Yohei Igami1, Johannes Birkenstock2, Reinhard X. Fischer2, Hartmut Schneider2

The synthetic analogue of the rare mineral mullite (solid solution VIAl2IV[Al2+2xSi2-2x]O10-x) is widely used in ceramics as “3/2-mullite” (x~0.25), whereas single crystals grown from melt are “2/1-mullites” (x~0.4) [1]. The…

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Behaviour of metals in the geothermal fluid system of the Upper Rhine Graben: Lithium
2021
Michèle Jungmann, Benjamin Walter, Elisabeth Eiche, Tobias Kluge, Dominik Gudelius, Jochen Kolb

In order to increase the economic potential of geothermal power plants in view of environmental protection and sustainability, there are considerations to extract critical raw materials (CRM), such as lithium,…

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Behind the scenes of the TCEs: what we are talking about and why
2023
Montserrat Filella1

TCEs stands for technology-critical elements, a group of chemical elements for which imbalances between supply and demand exist or are considered likely to exist. The concept is economic and geopolitical…

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Belemnites as an archive for the seawater lithium isotope composition: Evidence in the belemnite rostrum for large vital effects
2022
Sandra J. Huber1, Vanessa Schlidt1, H.-Michael Seitz1, Horst R. Marschall1, Silke Voigt1

The lithium isotopic composition of the seawater (δ7Li) can be used as a proxy for silicate weathering. So far, different archives like planktonic foraminifera, brachiopods, mollusks and bulk carbonates have…

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Benthic sources for dissolved inorganic carbon in the North Sea: A stable isotope perspective
2023
Michael E. Böttcher1, Cátia M. Ehlert von Ahn1, Carla K.M. Nantke1, Antonia Schell1, Donald E. Canfield2, Andreas Neumann3, Abdul M. Al-Raei4, Vera Winde1, Iris Schmiedinger1

Marine sediments may act as a sink for carbon. Substrate and electron donor availabilities, sedimentology, as well as biological activity may influence the carbon cycling, impacting the release of TA…

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Besucher aktiv werden lassen: Angewandte Paläontologie zur Wissenschaftskommunikation
2023
Ulrich Kotthoff1, Lioba Thaut1, Julia Pawlowski2

Ökosystem- und Klimaänderungen sind äußerst aktuelle und brisante Themen, die bei einem großen Teil der Bevölkerung auf breites Interesse stoßen. Bei der Unterscheidung zwischen anthropogen beeinflussten und rein natürlichen Änderungen…

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Beyond isotope proxies: employing triple oxygen isotope systematics in the water cycle and in chemical sediments as quantitative tool
2022
Daniel Herwartz1, Claudia Voigt2, Mohammed El-Shenawy1, Katharina Deussen1, Swea Klipsch1, David Bajnai3, Michael Staubwasser1, Carsten Münker1

Carbonate classic and clumped isotope ratios (δ18O and Δ47) are used to reconstruct paleotemperature. However, kinetic isotope effects (KIE) induce a bias on absolute temperature reconstructions. High precision δ17O measurements…

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Bias evaluated structural and probabilistic subsurface modelling: a case study of the Münsterland Basin, NW Germany
2021
Marius Pischke1,2, Alexander Magnus Jüstel1,2, Frank Strozyk1, Peter Kukla1,3, Florian Wellmann2

The analysis of uncertainties in the description of the subsurface is an important aspect for resource exploration and material storage. Because of the complexity of the subsurface and an often…

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Big Data in Geoscience – How to approach our largest challenge of today?
2022
Jürgen Grötsch1

In the past decades, the amount of digital subsurface and geoscience data has grown exponentially, and many companies and government organizations are dealing nowadays with Petabyte-scales of data, still growing…

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Biogenic processes of methane production and oxidation along thermokarst lake to lagoon transitions
2023
Susanne Liebner1, Sara E Anthony2, Knoblauch Christian3, Kallmeyer Jens4, Strauss Jens5, Yang Sizhong4

Thermokarst lagoons form at the terrestrial-marine interface when thermokarst lakes, hotspots for Arctic methane emissions, erode onto the Arctic shelf. Thermokarst lagoons are dynamic environments with seasonal ice build-up and…

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Biogeochemical influence on water quality by efficient phosphorus retention in pH-neutral open-cast mining lakes
2023
Björn Grüneberg1, Brigitte Nixdorf2, Jacqueline Rücker2, Thomas Gonsiorczyk3, Michael Hupfer3, Wilfried Uhlmann4, Dirk Sailer4, Yvonne Hillecke4, David Kneis5, Thomas Petzoldt5, Ina Hildebrandt6, Adrian Horn6

Empirical trophic models (Vollenweider-type) are one of the basic „tools of the trade“ in management of natural and artificial lakes. They are not applicable to open-cast mining lakes (PML) because…

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Biogeochemical processes in saline siliciclastic aquifers due to Aquifer thermal energy storage
2023
Tatjana Kliwer1, Martin Gitter1, Ferry Schiperski1, Julia Mitzscherling2, Thomas Neumann1

Aquifer Thermal Energy Storage (ATES) is a highly promising technology for storing excess energy due to its high storage capacity and small surface footprint. Despite its numerous advantages, planning, approval,…

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Biogeographic patterns of benthic foraminifera in contourite drift systems of the Atlantic Ocean
2021
Anna Saupe1, Johanna Schmidt1, Jassin Petersen1, André Bahr2, Patrick Grunert1

Benthic foraminifera inhabit diverse marine environments, including areas of persistent bottom currents and contourite drift deposition. Certain highly adapted epibenthic foraminifera colonize contourite deposits as opportunistic suspension feeders. A correlation…

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Biohydrometallurgy for Cobalt and Nickel recovery from laterites: project BioProLat
2023
Stefanie Hetz1, Srdjan Stankovic1, Mirko Martin2, Frank Haubrich2, Simon Goldmann1, Herwig Marbler1, Reiner Neumann3, José Luciano Stropper4, Axel Schippers1

Laterite ore deposits in Brazil and other tropical countries contain approximately 70% of the world’s Ni and Co resources. High energy and/or reagent costs, accompanied by expensive equipment costs, are…

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Bioleaching of Rare Earth Elements from Primary Resources using Heterotrophic Organisms
2023
Debby Schmidt1, Uwe Altenberger1, Sabine Kutschke2

Rare earth elements (REE) are essential for various modern „green“ technologies. However, conventional mining and extraction methods for REEs are energy-intensive, environmentally harmful, and call for the evaluation of alternative…

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Biologic agents mediating matter-flow inside the porous igneous oceanic crust, Vesteris Seamount, Greenland Sea
2021
Hinrich Schmid-Beurmann1, Magnus Ivarsson2, Wolfgang Bach3, Wolf-Achim Kahl4, Jörn Peckmann1

Microorganisms within the lithosphere are biologic agents settling in niches inside the terrestrial and oceanic crust, populating the extreme environments of the deep biosphere. The fossil record of the permeable…

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Biological productivity in the Southern Ocean across the Eocene-Oligocene transition
2021
Gabrielle Rodrigues de Faria1,2, Volkan Özen1,2, David Lazarus1, Ulrich Struck1,2, Johan Renaudie1, Gayane Asatryan1

The Eocene-Oligocene transition (EOT, ~34Ma) marks a dramatic climate change and carbon cycle perturbation in the Cenozoic. Understanding the variations in export productivity associated with EOT provides important information about…

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BioMetArchive – Subsurface biosphere metagenomics along the 1 Ma sedimentary archive of ferruginous Lake Towuti, Indonesia
2023
Fatima Ruiz Blas1, Jens Kallmeyer1, Cynthia Henny2, James Russell3, Aurèle Vuillemin1

Lake Towuti, Indonesia is a stratified ferruginous (iron-rich, sulfate-poor) system whose deep basin experienced dynamic changes in trophic and redox conditions since the Middle Pleistocene. As wet and dry periods…

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Biomineralization processes in low-temperature, shallow-water hydrothermal vent at Tagoro submarine volcano, El Hierro Island (Central East Atlantic)
2021
Blanca Rincón-Tomás1, Francisco Javier González2, Luis Somoza2, James R. Hein3, Teresa Medialdea2, Esther Santofimia2, Egidio Marino2, Pedro Madureira4

A novel hydrothermal system was discovered at the summit of the underwater Tagoro volcano at 89–120 m depth after the 2011–2012 eruption, characterized by the low-temperature venting of Fe-rich fluids…

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Blocks of fault-bounded imbricate stacks of Devonian limestones, a diagnostic field-criterion for a predominantly tectonic origin of chaotic rock fabrics in the Harz Mountains (Eastern Rhenohercynian Belt, Germany).
2023
Carl-Heinz Gerd Friedel1, Edmund Lars Cunäus2, Julia Kreitz3, Bernd Leiss4, Michael Stipp5

The distinction between sedimentary and tectonic processes in the formation of chaotic rock units is especially difficult in orogenic belts, where sedimentary structures are usually strongly overprinted by tectonic deformation…

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Borehole Gressenich BK1: new insights into the early Mississippian Kohlenkalk Platform of the Aachen region, Germany
2023
Sven Hartenfels1, Martin Salamon1, Oliver Heß1

The early Mississippian of the Aachen region is characterized by a tropical shallow-water carbonate succession, the so-called Kohlenkalk Platform. Establishing a second phase of intensive carbonate production, it follows on…

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Boron isotope fractionation in subducting oceanic crust
2022
Jie Xu1, Horst Marschall1, Axel Gerdes1

The boron stable isotope ratio is employed to investigate fluid-rock interaction processes in subducting slabs and the slab–mantle interface. Two groups of subduction-related rocks were collected from Syros (Greece): the…

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Boron isotopic analysis of Oceanic deposits as a recorder of Continental emergence in the Archean
2022
Avishai Abbo1, Horst Marschall1, Axel Gerdes1

The onset of plate tectonics on Earth brought about rapid accumulation of continental crust, and the transition of continental crust from being mostly submarine to mostly subaerial. Tracking the timing…

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Boron isotopic composition in cold-water corals determined by LA-ICP-MS
2022
Grit Steinhoefel1, Christoph Held1, Kristina Beck1, Gernot Nehrke1, Marlene Wall1

In this study, we present B isotopic data for cold-water corals at high spatial resolution determined by UV femtosecond laser ablation system coupled to a Nu Plasma II MC-ICP-MS. Boron…

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Boron isotopic fractionation in subducted oceanic crust
2023
Jie Xu1, Horst Marschall1, Axel Gerdes1, Alexander Schmidt1

Subducted oceanic crust plays an important role in controlling the chemical budget of the crust and mantle and in the composition of arc lavas. Oceanic eclogites represent fragments of oceanic…

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Building Earth
2022
Audrey Bouvier1

Studies of meteorites and samples returned from space missions bear the chemical and physical records of planetary formation processes. Mass-independent isotopic anomalies measured in planetary materials indicate two separate accretion…

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Burggraf-Bernsdorf – transformation of a potassium mine to a UGS facility
2021
Hagen Feldrappe

The potassium mine Burggraf-Bernsdorf was established between 1911 and 1913. It was situated at the southwestern flank of the Roßleben saddle (Sachsen-Anhalt) and belonged to the “Unstrut Kalirevier”. About 300.000…

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C-O-H-S fluids released by subducted serpentinite and the implications for arc-magma oxidation
2022
Wenyong Duan1, Hans-Peter Schertl1, Arne P Willner1

Serpentinites are able to carry H2O, ferric iron, carbon and sulfur into subduction zones, where they stepwise released fluid during dehydration. These C-O-H-S fluids are intimately linked to magma oxidation…

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Calcium sulphate-rich wedges in the subsurface indicating salt dynamics in alluvial-fan deposits from the Atacama Desert
2022
Aline Zinelabedin1, Benedikt Ritter1, Svenja Riedesel2, Joel Mohren1, Tony Reimann2, Tibor J. Dunai1

Subsurface wedges are common geomorphological structures in periglacial environments typically associated with polygonal patterned grounds on the surface. Their presence is an indicator for cryogenic processes in the subsurface resulting…

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Can REE-enriched carbonatites be mapped from space?
2023
Veronika Kopackova-Strnadova1, R. Johannes Giebel2, Vladislav Rapprich1, Tomas Magna1

Rare Earth elements (REE) belong to the most strategic materials of the 21st century with steadily growing economic importance. PRISMA, the hyperspectral satellite data, is used for the very first…

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Can we characterize groundwater reservoirs in central Europe from air pressure induced seismic velocity changes?
2023
Richard Kramer1, Yang Lu1, Götz Bokelmann1

Given the increasing challenges posed by climate change, especially more frequent and severe droughts experienced globally, effective exploration and management of groundwater resources is essential to ensure a sustainable and…

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Capturing CO2 by olivine weathering in facade plaster
2023
Maximilian Berndsen1, Rauno Baese2, Katharina Alms3

The building and construction sector accounts for a significant proportion of current anthropogenic CO2 emissions. Reducing the carbon footprint of building materials is difficult because some process-related CO2 emissions cannot…

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Carbon Cycling at the Dawn of the Cenozoic
2022
Michael J. Henehan1, James Barnet2, Boriana Kalderon-Asael3, Volkan Özen4, Pincelli Hull3, Noah Planavsky3, Andy Ridgwell5, James Rae2, James Witts6, Kate Littler7, Sarah Greene8, Ellen Thomas3, Mathis Hain9, Friedhelm von Blanckenburg1

The Paleocene – the first epoch of the Cenozoic (66–56 Ma) – spans numerous notable climatic and biogeochemical phenomena. In the oceans, the Paleocene saw the drawn-out recovery of calcifying…

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Carbonate aquifers for thermal energy storage: A critical analysis of clogging and scaling using temperature-controlled batch and column experiments
2023
Alireza Arab1, Leonie Gabler1, Martin Binder2, Traugott Scheytt1

Throughout the past two decades, aquifer thermal energy storage (ATES) has grown increasingly into focus as a suitable geo-energy storage method. In this context, many carbonate aquifers are useable for…

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Carbonate microfacies and transgressive-regressive cycles of Oxfordian shallow-water limestones (Korallenoolith, Lower Saxony Basin)
2021
Deyan Zhang, Stefan Huck, Ulrich Heimhofer

During the Oxfordian stage, the Lower Saxony Basin (LSB) was covered by a shallow epicontinental sea (Ziegler 1990), in which a thick succession of marine limestones and marls was deposited….

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Carbonate replacement sulfide mineralization in the Kupferschiefer district (Saale subbasin, Eastern Germany)
2023
Mohammed S. Mohammedyasin1, Joseph M. Magnall2, Sarah A. Gleeson1, Hans-Martin Schulz2, Anja M. Schleicher2, Richard Wirth2, Anja Schreiber2, Bodo-Carlo Ehling3

The Kupferschiefer districts in Central Europe contain some of the world’s largest sediment-hosted stratiform Cu deposits. The fine-grained sulfides are hosted by the Rotliegend sandstone (S1), organic matter-rich Kupferschiefer (T1)…

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Carbonates or carbonatites? Examples of alkaline silicate plutonic xenoliths from volcanoclastic rocks in the Eifel, Germany
2023
Maria Sitnikova1, Sindern Sven2, Kramm Ulrich2

Plutonic xenoliths in volcaniclastic rocks from the Laacher See (LS), East Eifel and the Rockeskyller Kopf Volcanic Complex (RKVC), West Eifel, were studied. They show different ways of magmatic carbonate…

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Carbonatites and alkaline rocks
2021
Marks, Michael A.W. (1); Walter, Benjamin F. (2); Giebel, R. Johannes (3)

This session thematizes the formation, evolution and economic importance of carbonatites and alkaline rocks. These play an important role for our society, as they contain exceptional high levels of critical…

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Carbonatites do not exist in vacuum: carbonatite–rock interactions from experiment and nature, and implications for REE mineralisation
2021
Michael Anenburg

The igneous nature of carbonatites has been controversial for decades until experimental work in the 1960s and 1970s conclusively showed that carbonatite melts can exist in geologically reasonable conditions. The…

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Case studies on the role of orbital forcing in Cretaceous greenhouse climates
2022
Sietske J. Batenburg1

The Cretaceous was characterised by a greenhouse climate with high sea levels, resulting in its famous carbonate-rich strata which often present a remarkable rhythmicity. Orbitally-forced cyclic sedimentation patters have been…

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Case study at a model site „Green Economy Park“ in Bremerhaven, Germany „Luneplate“: High resolution 3D subsurface models in flow modeling with a focus on climate resilience
2023
Katherina Seiter1, Björn Panteleit1, Sina Julius1

The Luneplate in Bremerhaven consists largely of nature reserves and bird sanctuaries. The soils have a thick alluvial clay horizon. Climate change threatens the region through seasonal heavy rain events,…

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CaSO4 crust as potential habitat for microbial life in the extreme hyperarid Atacama Desert and their reciprocal effects
2022
Lina Raffelsiefen1, Aline Zinelabedin1, Benedikt Ritter1, Helge Mißbach-Karmrodt1, Christine Heim1, Tibor J. Dunai1

The Atacama Desert is one of the most extreme landscapes and environments on Earth. Due to its predominant hyperarid climate and high UV radiation, life is mostly absent. Prolonged aridity…

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Cave monitoring of La Vallina Cave (NISA): Imprint of seasonality on δ13CDIC, δ18O and trace elements and the implications for speleothems
2021
Oliver Kost1, Saul Gonzalez Lemos2, Laura Endres1, Heather Stoll1

A cave monitoring sets the basis of speleothem studies. It helps to understand changing cave conditions on seasonal scale and site-specific geochemical differences such as hydrological conditions and heterogeneities in…

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CDGP- a gateway to geothermal data in Alsace
2021
Marc Schaming1, Mathieu Turlure2, Marc Grunberg2, Jean Schmittbuhl1

The CDGP [https://cdgp.u-strasbg.fr], Data Center for Deep Geothermal Energy, was created in 2016 by the LabEx G-Eau-Thermie Profonde (continuing now in ITI GeoT) [https://geot.unistra.fr/], to archive the high-quality data collected…

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Celebrating thirty years of virtual outcrops: status and perspectives
2023
Simon J Buckley1, John A Howell2, Nicole Naumann1, Kari Ringdal1, Joris Vanbiervliet1, Conor Lewis1, Magda Chmielewska2

Thirty years ago, scientists from the Technical University of Denmark and University of Bergen published 3D outcrop acquisition and processing methods for large-scale vertical cliff sections in Greenland (Dueholm &…

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Cementation rates of detrital platform carbonates and sequence stratigraphic implications
2021
Thomas Mann1, Hildegard Westphal2

Different views exist on the prevalent processes that control transport and deposition of detrital platform carbonates in a sequence stratigraphic framework. While some models indicate that meteoric cementation during sea-level…

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Cenozoic evolution of the Icelandic Plume and its influence upon the topographic evolution of Northwest Europe
2021
Nicky White

The Icelandic mantle plume is probably the largest convective upwelling on Earth. It is generally agreed that its growth and evolution have had a significant influence on the geologic and…

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Cenozoic fault development in the central segment of the Upper Rhine Graben: Constraints from 3D-seismic data north of Karlsruhe (SW-Germany)
2022
Jens Carsten Grimmer1, Florian Bauer1, Lars Houpt1, Thomas Hertweck1, Eva Schill1

The Cenozoic graben filling is currently investigated for heat storage potentials (DeepStor-project). The structural model based on 3D-seismic and borehole data constrains the geometry and sedimentary thicknesses of potential reservoirs…

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Cenozoic Mass Transport Deposits in the Northern Dutch Offshore: Anatomy and Implications revealed by HiRes Seismic Mapping
2020
Alex Marks (1) & Guido Hoetz (2)

Recent high resolution 3D seismic reflection data allowed to map Late Cenozoic Mass Transport Deposits (MTD) in great detail. These deformation structures in Miocene/Pliocene sediments are linked to the Eridanos…

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Challenges and approach to a geological 3-D modeling workflow to identify potential areas for a repository for high-level radioactive waste
2021
Julia Rienäcker-Burschil, Christian Buxbaum-Conradi, Standortauswahl Team

In 2020, the Bundesgesellschaft für Endlagerung mbH (BGE) published the Sub-areas Interim Report, identifying areas with favorable geological conditions for a deep repository site for storage of high-level radioactive waste…

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Challenges and opportunities for lithium extraction from geothermal systems in Germany
2023
Valentin Goldberg1, Fabian Nitschke1

The growing lithium demand and the dependence on poorly diversified oversea sources point towards a high strategic importance of domestic resources. Furthermore, potentially lower CO2 emissions and reduced areal use…

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Challenges in developing a transboundary groundwater model for the water stressed capital region of Berlin-Brandenburg
2023
Bertram Monninkhoff1, Kerstin Kernbach2, Ulrike Hoermann2, Johannes Birner2, Felix Moehler3, Malte Kalter3

Higher temperatures and increasing droughts are likely to lead to a reduction in available water resources in the Berlin-Brandenburg region. Concurrently, there is an increasing demand for water due to…

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Challenges in the determination of highly accurate experimental mineral-melt partition coefficients
2022
Cordula Haupt1, Stephan Klemme1, Andreas Stracke1, Christian Renggli1, Jasper Berndt1, Martijn Klaver1, Sabrina Schwinger2

Partition coefficients (D) depend on temperature, pressure, redox conditions, and on the chemical composition of solid and liquid. Trace element modeling of evolution of the Lunar Magma Ocean (LMO) rely…

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Chances and challenges of digitization in the mineral resources management in developing countries, examples from Mongolia
2023
Thekla Abel1, Otgonbaatar Altanbasan2, Batbayar Jargalsaikhan2, Thomas Spehs3

Mongolia is a sparsely populated, resource-rich country with a wide range of different mineral deposits and mining activities in size and quality of operation, distributed over a vast area of…

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Changes in palynofacies and organic geochemistry as indicator for marine ingressions in the German Wealden
2023
Fritz-Lukas Stoepke1, Annette E. Götz2, Martin Blumenberg3, Julia Gravendyck4, Jochen Erbacher3, Roberto Pierau2, Robert Schöner2, Ulrich Heimhofer1

New palynological and geochemical data from the KB Rehburg-2 core covering the German Wealden (W1-4) illustrate the unique development of this depositional setting. Despite the temporary isolation of the Lower…

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Changes in precipitation during the last 420 kyr in northern Central America as recorded by Lake Petén Itzá, Guatemala
2023
Rodrigo Martinez-Abarca1, Liseth Perez1, Thorsten Bauersachs2, Alex Correa-Metrio3, Steffen Kutterolf4, Frederik Schenk5, Antje Schwalb1

Lake Petén Itzá, Guatemala, is one of the oldest lakes in northern Central America. Its sedimentary record contains the signal in precipitation variability of the last four interglacial-glacial cycles (420-14…

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Changing carbonate budgets and the maintenance of coral reefs and reef islands
2021
Chris T Perry

The ecology and structure of many tropical coral reefs have altered markedly over the past few decades. Drivers of this degradation range from direct local damage from destructive human practices…

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Characteristics and inhibition of microbial induced corrosion and biofilm formation by thermal shocks under in-situ conditions in a geothermal heat-storage plant in Neubrandenburg (Germany)
2023
Christoph Otten1, Sebastian Teitz2, Tobias Lienen3, Anne Kleyböcker4, Hilke Würdemann1

Geothermal facilities in the North German Basin are frequently affected by corrosion and scaling due to high salinity as well as microbial induced corrosion. To study biofilm formation, corrosion processes…

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Characterization of pore space in sandstone using the anisotropy of magnetic susceptibility
2021
Julius Schenk1, Agnes Kontny1, Benjamin Busch1, Ilner Khasanov2, Hagen Steger1

The pore space in siliciclastic rocks is one of the most important petrophysical properties in reservoir rock characterization. Of particular interest is the 3D distribution of pore space and permeability…

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Characterizing sediment dewatering and fluid flow in accretionary systems – A rock magnetic approach on the example of IODP Site U1518
2020
Annika Greve (1), Myriam Kars (2), Mark J. Deckers (1) & Michael Stipp (3)

The dewatering and subsequent drainage of fluids from porous sediments in forearc regions control the frictional behavior of the plate boundary décollement and all other faults in the forearc. Site…

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Chasing strong seismic reflections in the basement of a giant gas accumulation – the Norwegian Troll mystery
2023
Nicola Kerstin Möller1, Christian Gram1, Hartmut Hubertus Schütt1

The crystalline basement below the giant Norwegian Troll field has been subject to research and publication for many decades. Still no well bore has penetrated the deep crystalline basement. An…

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Chemical and mineralogical characterization of Li- and Mn-bearing slags to increase the recycling efficiency of lithium from lithium-ion-batteries (LIB)
2022
Marko Ranneberg1, Torsten Graupner1, Simon Goldmann1

Within the framework of the BMBF-funded project „PyroLith“ (FKZ: 03XP0336C), which deals with the recovery of lithium from NMC-type LIB via a combined pyro- and hydrometallurgical process route, two slag…

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Chemical composition and petrography of recent type 1 and 2 carbonaceous chondrite falls
2022
Frank Wombacher1, Imene Kerraouch2, Addi Bischoff3

We analysed the recent (2019 – 2021) brecciated carbonaceous chondrite falls Flensburg (C1), Tarda (C2,) Kolang (CM1/2), Aguas Zarcas (CM2), and Winchcombe (CM2) together with Murchison and Paris for their…

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Chemical interdiffusion in Na-rich alkaline melts: insights from tephrite-phonolite couple experiments
2022
Diego González-García1, Florian Pohl1, Stepan P. Krasheninnikov1, Philipp Beckmann1, Harald Behrens1, François Holtz1

Although alkaline melts represent an important fraction of the magmatism in ocean islands, there is a lack of chemical diffusion data in such compositions. We present here the result of…

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Chert oxygen isotope ratios are driven by Earth’s thermal evolution
2022
Michael Tatzel1, Patrick J Frings2, Marcus Oelze3, Daniel Herwartz4, N Keno Lünsdorf1, Michael Wiedenbeck2

The 18O/16O ratio of cherts (δ18Ochert) increases monotonically by ca. 15 ‰ from the Archean to present. As oxygen isotope fractionation in the silica-water system is temperature-dependent, this trend has…

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China’s future as a low carbon economy: The Chinese hard coal industry & renewable energies in perspective
2021
Julia Tiganj

With the recently announced climate neutrality for the year 2060, there are plenty of questions in China about the future and the existence of the hard coal mining industry. With…

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City-scale residential heating and cooling with Aquifer Thermal Energy Storage (ATES)
2023
Ruben Stemmle1, Haegyeong Lee1, Philipp Blum1, Kathrin Menberg1

Achieving sustainable and climate-friendly space heating and cooling is essential to the energy transition. Aquifer Thermal Energy Storage (ATES) is a promising technology to significantly reduce greenhouse gas emissions compared…

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Clay and basic understanding of burial diagenesis
2021
Jūratė Vaznytė, Nicolaas Molenaar

Clay cements can occur pervasively throughout larger volumes of sandstone, thereby affecting the reservoir properties significantly. They affect irreducible water content and pore surface roughness. Moreover, any induced fluid or…

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Clay dissolution/re-precipitation drives extreme Li isotope fractionation during tropical weathering
2022
Maria Chapela Lara1, Heather L. Buss2, Michael J. Henehan1, Jan A. Schuessler1, William H. McDowell3

Lithium isotopes are the best tracers of weathering intensity, but little is known about the processes that fractionate them in highly weathered settings, where secondary minerals play a dominant role…

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Clay mineral quantification in the Upper Cretaceous Emscher Formation – evaluating a potential hydraulic barrier during mine water rebound in the Ruhr District
2021
Till Genth1, Jan Sessing2, Henning Jasnowski-Peters1, Christian Melchers1

The sealing potential of geological formations (“cap rocks”) plays an important role in long-term industry projects associated with mine water rebound, carbon sequestration and nuclear waste disposal. It is an…

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Clay Mineral Reactions and Transport in the Critical Zone
2023
Paul A. Schroeder1

The expression “Rock+Acid+Water -> Clays+Ions+Bicarbonate” may seem simple, but it encompasses many complex processes working in the Earth’s Critical Zone (CZ). The SE United States Calhoun CZ Observatory (O) has…

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Clay minerals in the critical zone and links to climate change
2023
Laurence Noel Warr1

This contribution uses a recently published global clay mineral inventory of the critical zone to assess how well clay mineral assemblages reflect climate. The relative abundance of the main clay…

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Cliff coast collapses driven by nested biological, astronomical and meteorological activity cycles
2021
Michael Dietze, Kristen L. Cook, Luc Illien, Oliver Rach, Niels Hovius

Cliffs line many erosional coastlines. Localized failures can cause land loss and hazard, and impact ecosystems and sediment routing. Links between cliff erosion and forcing mechanisms are poorly constrained, due…

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Climate dynamics plays a key role in determining the Snowball bifurcation point on Earth
2023
Georg Feulner1, Mona Bukenberger2, Stefan Petri1

One of the limits of planetary habitability of Earth and other water-rich planets relates to the instability with respect to global glaciation, a fundamental property of the climate system caused…

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Climate projections for the waterworks Lindau in Saxony-Anhalt as planning basis for proactive and sustainable catchment management
2023
Felix Möhler1, Alexandra Pavlova1

The waterworks Lindau (Zerbst) are an important part of the interconnected system of drinking water supply in the region of Magdeburg, Saxony-Anhalt, Germany. The pumped water is exclusively fed by…

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Climate, volcanoes, and tectonic activity – Their influence on the lower to middle Eocene paleoenvironment on the Sprendlinger Horst (Southwest Germany)
2021
Maryam Moshayedi1, Olaf K. Lenz1,2, Jürgen Mutzl1, Volker Wilde2, Matthias Hinderer1

The Sprendlinger Horst represents the northern extension of the Odenwald basement which is flanking the Upper Rhine Graben to the northeast. Several small, isolated basins filled by lacustrine sediments of…

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Climatic controls on the ecological ascendancy of dinosaurs
2023
Emma Dunne1, Lisa Schnetz2, Alexander Farnsworth3, Richard Butler2, Roger Benson4, Pedro Godoy5, Sarah Greene2, Paul Valdes3, Daniel Lunt3

The rise of dinosaurs during the Late Triassic was a pivotal event in the history of life on Earth, which led to them becoming dominant members of terrestrial ecosystems throughout…

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Climatic Fluctuations in the Early and Middle Copper Age – First Isotope Investigations at the Water Supply of Los Millares in SE Spain
2021
Anorte Elisabeth Jakowski1, Andrea Schröder-Ritzrau2, José Miguel Alonso Blanco3

The Copper Age fortification of Los Millares is located 15 km north of Almería in Andalusia. At least between 3,541 BC (+/- 92 years) and 2,591 BC (+/- 22 years)…

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Climatic Impact of the Little Ice Age on Sumatra, Indonesia
2023
Franziska Schwonke1, Alexander Rohrmann1, Anne Bernhardt1, Katleen Wils2

The Little Ice Age was a period of colder climate and extended glaciation mainly observed in Europe and North America between the middle of the 14th and the end of…

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Closely-spaced carbonate replacement veins: the influence of external stress on focused fluid flow during carbonation of peridotite
2021
Manuel D. Menzel1, Janos L. Urai1, Estibalitz Ukar2

The reaction of serpentinized peridotites with CO2-bearing fluids to listvenite (quartz-carbonate rocks) requires massive fluid flux and maintained permeability despite volume increase. Here we investigate listvenites and serpentinites samples from…

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Closing an Archean ocean over 350 Mill. years – the Age-Hf isotope record of granitoids from the Limpopo Belt and adjacent Pietersburg Block
2022
Armin Zeh1, Maria Kirchenbaur2

The Limpopo Belt in southern Africa represents a high-grade gneiss terrane located between the Kaapvaal Craton to the south and the Zimbabwe Craton to the north, and is subdivided into…

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Co-variation of silicate, carbonate, and sulfide weathering drives CO2 release with erosion: Constraints from southern Taiwan
2021
Aaron Bufe1, Niels Hovius1, Robert Emberson2, Jeremy Rugenstein3, Albert Galy4, Hima Hassenruck-Gudipati5, Jui-Ming Chang6

The supply of fresh minerals to Earth’s surface by erosion is thought to modulate global climate by removing atmospheric carbon dioxide (CO2) through silicate weathering. In turn, weathering of accessory…

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CO2 storage potential of the Middle Buntsandstein in the Exclusive Economic Zone (EEZ) of the German North Sea
2023
Arne Fuhrmann1, Stefan Knopf1, Niklas Ahlrichs1, Heidrun Stück1, Felix Kästner1, Hauke Thöle1, Gesa Kuhlmann1

The storage of CO2 in deeply buried geological formations provides an important contribution to mitigate residual emissions from heavy industry in order to limit global warming below 2 °C. Robust…

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Coastal Foraminiferal Assemblages along the southern coast of Oman: A biogeographic stepping stone for benthic foraminifera?
2022
Yaroslav S. Trubin1, Mohamed Kamoun2, Martin R. Langer3

The shallow water ecosystems of Oman are subject to intense seasonal upwelling and unlike many other oligotrophic tropical areas, are impacted by strong, seasonal nutrient-rich eutrophic conditions. The environmental conditions…

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Collecting ‘Big’-data in sedimentary provenance analysis: An optimized workflow from sample preparation to analysis
2023
Nils Keno Lünsdorf1, Jan Ontje Lünsdorf2, Gábor Újvári3, Lukas Wolfram4, Adrian Hobrecht4, Lothar Laake4, Hilmar von Eynatten1

For a robust interpretation in sedimentary provenance analysis studies (SPA) a combination of multiple methods is usually applied to a selected number of samples. To circumvent effects that perturb the…

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Collecting, sharing, and visualising harmonised data on European raw materials occurrences and mines – success or failure?
2021
Špela Kumelj1, Lisbeth Flindt Jørgensen2, Frands Schjøth2, Andrej Vihtelič1, Blaž Bahar1, Katarina Hribernik1

Easy web access to useful and reliable mineral information for the whole of Europe is the main objective of the extension of the M4EU base in the GeoERA project Mineral…

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Colloidal transport and seasonal variations of technology critical elements in aquatic systems
2023
Teba Gil-Díaz1, Elisabeth Eiche1

Technology critical elements (TCEs) are widely understudied in aquatic systems. Many unknowns particularly are linked to the mechanistic understanding of TCE transport mechanisms in contrasting river systems. In this work,…

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Combined 182W – 142Nd data for the Deccan Large Igneous Province and the role of crustal and lithospheric reservoirs
2023
Josua J. Pakulla1, Jonas Tusch1, Arathy Ravindran1, Eric Hasenstab-Dübeler1, Mike W. Jansen1, Purva Gadpallu2, Raymond A. Duraiswami2, Carsten Münker1

Recently, high precision isotope measurements revealed anomalies of the short-lived 182W and 142Nd system in modern Ocean Island Basalts (OIBs) [1, 2]. These anomalies indicate the presence of an ancient…

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Combined analysis of H/V and passive seismic array measurements to investigate the shallow underground of the Quaternary Weser terraces south of Hamelin
2023
Manuel Hobiger1, Christine Thiel1, Thomas Spies1, Koen Van Noten2, Martin Zeckra2, Aida Azari Sisi1, Andreas Steinberg1, Stefanie Donner1

The geology of the Weser river terraces to the south of Hamelin is characterized by Quaternary sediments, consisting of thin alluvium and several meters of sand and gravels, overlying the…

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Combined architectural-element and microfacies analyses in carbonate sedimentology: the intra-basin shoal complex of the Lower Muschelkalk (Rüdersdorf Formation, Anisian)
2021
Fabian Käsbohrer, Matthias Franz

The layer-cake strata of the epeiric Anisian-Ladinian Muschelkalk are devoid of large-scale architectural elements, e. g. steep clinoforms of a progradional platform slope. This resulted in a simplified approach in…

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Combined architectural-element and microfacies analyses in carbonate sedimentology: the intra-basin shoal complex of the Lower Muschelkalk (Rüdersdorf Formation, Anisian)
2021
Fabian Käsbohrer, Matthias Franz

The layer-cake strata of the epeiric Anisian-Ladinian Muschelkalk are devoid of large-scale architectural elements, e. g. steep clinoforms of a progradional platform slope. This resulted in a simplified approach in…

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Combined Fluorescence Imaging and LA-ICP-MS Trace Element Mapping ofStalagmites: Microfabric identification and interpretation
2021
Jakub Sliwinski1, Heather Stoll2

Here, we map a series of stalagmites from Asturias, Spain, by laser ablation inductively-coupled-plasma mass spectrometry and confocal laser scanning (fluorescence) microscopy and discuss the origins of trace element and…

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Combining Observations and Reactive Flow Modeling to Investigate Lower Crustal Hydration – Insights from the Hustad Igneous Complex, Western Norway
2023
Jasper M. Engelmann1, Johannes C. Vrijmoed1, Timm John1

The grain-scale mechanisms of hydration of mafic lower crustal rocks are investigated on chemical maps of continuous rock sections (20 x 2 cm) of partially amphibolitized samples from the Hustad…

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Communication geosciences and higher education teaching
2021
Junge, Malte (1); A. Fischer, Lennart (2); Hlawatsch, Sylke (3); Meschede, Martin (4)

Geoscientific questions are increasingly relevant in our daily life. However, the public awareness of geoscientific topics is very limited. Therefore, it is important to inverse the visibility of geoscientific challenges…

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Comparing data-driven landslide susceptibility mapping methods and the impact of modifying the study area and sampling method in the Hunza Valley (Pakistan)
2022
Nick Schüßler1, Jewgenij Torizin1

We compared artificial neural networks (ANN), frequency ratio (FR), logistic regression (LR), and weights of evidence (WoE) for landslide susceptibility mapping in the Hunza Valley, Pakistan. We applied different data…

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Comparing lacustrine sedimentation rates and their response to climatic and environmental change
2023
Christian Zeeden1, Luc Grandcolas1, Mathias Vinnepand1, Arne Ulfers1, Mehrdad Sardar Abadi1, Simona Pierdominici2, Thomas Wonik1

Continuous limnic archives may record millions of years of climatic and environmental change at their locality. Typically, such archives reflect environmental conditions in the lakes’ catchments, but also the imprint…

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Comparison and assessment of different radon potential maps for the federal state of Hesse, Germany
2021
Jessica Daum1, Rouwen Lehné2, Andreas Henk1, Sebastian Huber3

With the new Radiation Protection Act, the EU member states are required to identify so-called „radon prone areas“. In Germany, the federal states are accounting for this task. An important…

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Comparison of high-resolution SIMS profiles with maximum resolution IRMS stable isotope data
2021
Tobias Kluge1,2, Philipp Holz1, Elisabeth Eiche1, Thomas Neumann3, Alexander Land4,5, Maximilian Schuh2,6, Mario Trieloff2,7, Axel K. Schmitt2,7

High-resolution speleothem paleoclimate records with annual to seasonal resolution are helpful for detailed analysis of climatic changes with limited duration (e.g., volcanic climate impacts), but also for longer-duration events (e.g.,…

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Comparison of radon and thoron exhalation and emanation in granites from Central Portugal
2021
Filipa P. Domingos1,2, Sérgio L. R. Sêco1, Alcides J. S. C. Pereira1,3

Thoron contribution to the inhaled dose is often neglected due to its shorter half-life and lack of strong gamma emissions that hinder its measurement. However, numerous studies report a significant…

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Complex ascent of mantle plumes in a phase-changing world
2021
Anders Lillevang Vesterholt, Thorsten J. Nagel

Phase changes in the mantle have long been known to play a major role for convection in a one-component mantle. When considering cases with depleted ambient upper mantle and upwelling…

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Complex electronic, magnetic, and structural transformations in FeO
2022
Xiang Li1, Elena Bykova2, Georgios Aprilis3, Denis Vasiukov3, Stella Chariton4, Valerio Cerantola5, Maxim Bykov4, Anna Pakhomova5, Fariya Akbar4, Elena Mukhina6, Davide Comboni5, Catherine Mccammon4, Aleksandr Chumakov5, Carmen Sanchez-Valle1, Leonid Dubrovinsky4, Ilya Kupenko1

Iron oxides are important materials for Geoscience but also for basic science and applied technologies (Kupenko et al., 2019). Iron monoxide is likely to be the final constituent of the…

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Composition and distribution of sedimentary organic matter in the distal Wealden facies (KB Rehburg-2) of the Lower Saxony Basin, Germany
2022
Fritz Stoepke1, Ulrich Heimhofer1, Julia Gravendyck1, Martin Blumenberg2, Jochen Erbacher2, Annette E. Götz3, Roberto Pierau3, Robert Schöner3

New insights into the Lower Cretaceous sediments can be gained from a recently drilled core (KB Rehburg-2, Lower Saxony, Germany) covering 180 m of Berriasian strata. Stratigraphic assignment is based…

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Compositional-structural characterization of the Opalinus Clay: New data from core samples from the Mont Terri URL, Switzerland
2023
Tilo Kneuker1, Reiner Dohrmann1, Kristian Ufer1, David Jaeggi2, Lukas Pollok1, Thomas Mann1, Bernhard Schuck1

Middle Jurassic Opalinus Clay (OPA) is considered as host rock for the disposal of heat-generating high-level radioactive waste. For the present study, samples from the Mont Terri rock laboratory (Switzerland)…

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Compositions of hydrothermal vent fluids as a guide to subseafloor mineralization processes
2021
Wolfgang Bach, Alexander Diehl

Studying active hydrothermal systems in the deep-sea provides unique opportunities for furthering our understanding of how polymetallic seafloor massive sulfide accumulations form. The possibility of sampling the ore-forming fluids that…

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Computational Investigation on the Adsorption and Photodegradation of Glyphosate in its zwitterionic form on a Rutile (110) Titanium Dioxide Surface
2022
Jakob Brauer1, Luca Gerhards2, Thorsten Klüner2

In times of steadily increasing demand for food due to the continuous growth of the world population, herbicides like glyphosate are heavily used to ensure the supply of crops all…

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Conceptual Change Research in Geosience Education
2023
Dirk Felzmann1

Conceptual change research is an important field of science education research. This also applies to geoscience education (e.g. Guffey & Slater 2020). Despite the high importance of student conceptions for…

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Coniacian-Santonian ammonites from the Ilam Formation in the Zagros basin, west of Iran
2020
Mostafa Aseh

The ammonites from upper Coniacian to middle to upper Santonian of the Siah-Kuh section in Zagros basin, west of Iran have been described and illustrated. Three ammonite species from the…

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Connection of sulfide species and sedimentary trace metal cycles in the Namibian shelf – implications for paleo-marine redox proxies
2022
Sümeyya Eroglu1, Florian Kurzweil2, Florian Scholz3, Olaf Dellwig4, Harald Strauss1

The identification of redox-states and -cycling in the paleo-ocean is typically based on the application of geochemical proxies in the geological record. In particular total organic carbon (TOC) and total…

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Considering the potential chromite resources of Mirdita (Albania), Troodos (Cyprus) and Muğla (Turkey) ophiolites
2022
Sima Akrami1, M. Junge1, F. Brandmiller1, M. Kaliwoda1, W.W. Schmahl1

Chromitites are economically relevant sources for chromium, and platinum-group elements (PGE). Since chromium is resistant to corrosion and abrasion, it is a vital item in stainless (74%), alloy steel markets…

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Constraining ore-forming processes of the sediment-hosted Dolostone Ore Formation copper-cobalt mineralization, northwestern Namibia: a sulfide trace element study
2021
Viktor Bertrandsson Erlandsson1, Daniela Wallner1, Rainer Ellmies2, Frank Melcher1, Johann G. Raith1

Exploration was recently carried out on the sediment-hosted Dolostone Ore Formation (DOF) Cu-Co mineralization, in the Kunene Region of northwestern Namibia, in the pursuit of new sources of Co. Sharing…

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Constraining the heat transfer from convecting upper-crustal magma reservoirs to hydrothermal fluid flow systems
2022
Philipp Weis1, Christine Andersen1

Heat transfer through the upper crust is primarily controlled by magma flow, heat conduction and hydrothermal fluid flow. The interplay between magma and fluid flow processes is essential for geothermal…

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Constraining the interplay of magmatic and hydrothermal processes during ore formation with numerical models
2023
Yulia Gruzdeva1, Philipp Weis1

Future exploration for mineral resources will target greater depths and submarine settings, which is costly and technically challenging. For this development, numerical modeling can be used to identify the governing…

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Constraining the interplay of magmatic and hydrothermal processes during ore formation with numerical models
2022
Yulia Gruzdeva1, Philipp Weis1

Magmatic-hydrothermal ore deposits form our largest resources of Cu, Mo, Sn and W and are formed by fluids released from magmatic intrusions into a hydrothermal system within the country rock….

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Constraining the mantle sources of Italian magmatism through high field strength elements and 176Hf/177Hf
2022
Alessandro Bragagni1, Filippo Mastroianni2, Carsten Münker3, Riccardo Avanzinelli2, Sandro Conticelli4

High Field Strength Elements (HFSE) are a powerful proxy to investigate specific processes occurring in complex magmatic settings. Being only little released by slab derived fluids/melts, HFSE are not easily…

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Constraining Volatile Element Loss Processes by Germanium Isotopic Investigations of Iron Meteorites
2022
Elias Wölfer1, Christoph Burkhardt1, Thorsten Kleine1

The concentrations of Ge and other moderately volatile elements (MVE) in iron meteorites vary by orders of magnitude, however, the origin of these variations is poorly understood and nebular as…

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Contaminant mobilization from an abandoned polymetallic sulfide mine, Mt. Bobija, Serbia
2022
Marie Klose1, Ricarda Behrens1, Christian Mikutta1

On top of Mt. Bobija, located in Western Serbia and mainly composed of silt- and limestone, outcrops of a massive triassian sulfide ore body with pyrite, sphalerite, galena, tetrahedrite, and…

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Continental or oceanic weathering processes – What controlled the Late Cretaceous lithium cycle?
2023
Sandra J. Huber1, Vanessa Schlidt1, Jorit F. Kniest1, H.-Michael Seitz1, Jacek Raddatz1, Horst R. Marschall1, Silke Voigt1

The lithium isotopic composition (δ7Li) of marine carbonates is known as a proxy for the chemical weathering intensity of silicate rocks. To evaluate the role of weathering as a sink…

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Contrasting intensity of aragonite dissolution in glacial vs. interglacial intervals of a sea-level controlled subtropical carbonate succession
2021
Lars Reuning1, Hanaa Deik2, Benjamin Petrick1, Hideko Takayanagi3, Yasufumi Iryu3, Margot Courtillat4, Maria-Angela Bassetti4

Aragonite and high-Mg calcite are abundant in modern, neritic temperate water systems but are nearly absent from their fossil counterparts. Dissolution of these metastable mineral phases will often leave no…

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Contrasting messages from sulfur and oxygen isotopes on the origin of Eoarchean crust
2022
J. Elis Hoffmann1, Jonathan A. Lewis1, Esther M. Schwarzenbach1, Harald Strauss2

Mantle-like oxygen isotope compositions in zircons from Eo- and Paleoarchean tonalite-trondhjemite-granodiorites (TTG) suites have been taken as evidence for the formation of early continental crust from juvenile hydrated basalts that…

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Contrasting rare metal potentials in two Southern Alpine vein deposits
2021
Thomas Angerer1, Tim Poniewas1, Lorenz Profanter1, Martina Tribus1, Helene Braetz2

Investigating rare metal potentials of the Alpine regions is of great importance to progress towards future supply independence. Sphalerite is an important carrier of Co, In, Ga, Ge, and Sb,…

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Contribution of the extreme events to the surface transformation in proglacial areas (the Djankuat River catchment case study, Caucasus)
2021
Andrei Kedich1,2, Maxim Uspensky1,2, Anatoly Tsyplenkov1,2, Sergey Kharchenko1,2, Valentin Golosov1,2

This study is dedicated to a quantitative assessment of two different-scale impulsive geomorphic events in proglacial areas. The study site is the Djankuat River catchment in the Caucuses. The first…

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Control of valley width on the flank erosion rate: measure of erosion rates of Andean and French fluvial valleys by using 10-Be and 26-Al
2023
Chloé VALENTI1, Sébastien CARRETIER1, Vincent REGARD1, Sandrine CHOY1, Vincent GODARD2, Frédéric CHRISTOPHOUL1, Willem VIVEEN3

Any keen observer has noticed that valleys show a large variability in their shapes, explained by the incision and widening processes. However, valley widening processes and rate are still poorly…

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Controls on Island morphologic evolution
2023
Anaé Lemaire1, Jean Braun2, Esteban Acevedo-Trejos3

Islands are interesting geomorphic features because they possess a well defined base level. Non-volcanic islands, in particular, are the product of rifting of a small continental fragment such that they…

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Core formation efficiency for rocky super-Earths
2023
Lena Noack1

For rocky planets it is typically assumed that they are able to differentiate into a silicate mantle and a metal core, due to the fact that metals are denser than…

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Core formation experiments at conditions of a deep magma ocean
2022
Julien Siebert1

Models of core formation involve equilibration of metal and silicate in a deep magma corresponding to pressure and temperature conditions above 50 GPa and 3500 K (e.g. 1, 2). Over…

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Correlation of Neoproterozoic glacial diamictites in southern Namibia
2023
Mandy Zieger-Hofmann1, Johannes Zieger1, Andreas Gärtner1, Axel Gerdes2, Ulf Linnemann1, Richard Albert3, Linda Marko3, Anja Sagawe1, Katja Mende1, Jessica Haschke1, Kombada Mhopjeni4, Helke Mocke4

This talk presents a multi-method approach to construct a conclusive new correlation model for Neoproterozoic glacial units of southern Namibia. Therefore, ten different sections and a variety of samples were…

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Cosmogenic 10Be/9Be in speleothem as a proxy for paleo-weathering rate
2022
Darryl Edward Granger1, Adrian A. Singleton1, Anton Vaks2, Philip Pogge von Strandmann3

Meteoric 10Be is introduced to the ground surface as fallout from cosmic-ray production in the atmosphere, while 9Be is a trace element released by mineral weathering.  The 10Be/9Be ratio in soil…

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Coupling heat conductivity, lithofacies and reservoir quality of the coal-bearing Upper Carboniferous in the eastern Ruhr Basin, NW Germany
2022
Jonas Greve1, Benjamin Busch2, Dennis Quandt2, Mathias Knaak3, Christoph Hilgers2

The Ruhr Basin in Germany is one of the most extensively studied 3D rock volumes due to decades of subsurface coal mining. Mine flooding associated with the closure of the…

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Creating sustainable approaches in a holistic way or Other ways to sustainability
2021
Julia Bauer

Every country has a different approach to of climate change adaptation based on local context and needs. This presentation gives an overview how the Netherlands and Germany approach sustainability, and…

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Critical external and internal factors for plate tectonics
2023
Oliver Henke-Seemann1, Lena Noack1

Convective mantle flow in terrestrial planets is governed by a temperature- and pressure-dependent rheology. This results in a stagnant-lid regime observed on most terrestrial planets. Plastic deformation can lead to…

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Critical metals in the environment
2021
Jörg Schäfer

The overall amount of metals and their variety used for technical applications has been subject to a steep increase during the past decades and is forecast to further develop. Growing…

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Critical mineral resources related to the rise and fall of a supercontinent
2022
Mathias Burisch1

The European Variscides host significant resources of energy and technology critical raw materials (ETRs) associated to various types of hydrothermal systems. Hydrothermal mineralization in central and western Europe is mainly…

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Critical Minerals in US Geothermal Brines: Opportunities and Challenges for their Extraction
2021
Ghanashyam Neupane

Geothermal power plants produce a large volume of brine for power generation. Since these brines are the product of long-term water-rock interactions at elevated temperatures at depth, they contain dissolved…

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Critical Raw Materials (CRM) potential of Slovenian historical mining sites
2020
Klemen Teran

Of the more than 200 metal ore occurrences and deposits discovered on Slovenian territory, several have been developed into significant mines (e.g. the Idrija Hg mine or the Mežica Pb-Zn-Mo…

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Critical Raw Materials for the Energy Transition
2021
Kathryn Goodenough

The global objective of achieving net zero emissions is driving significant decarbonisation of energy and transport, with a shift towards renewable energy sources and electric vehicles. It is now widely…

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Crust and upper mantle structure of the Ligurian Sea revealed by ambient noise tomography and receiver function analysis
2020
Felix Noah Wolf (1), Dietrich Lange (1), Heidrun Kopp (1,2), Anke Dannowski (1), Ingo Grevemeyer (1), Wayne Crawford (3), Martin Thorwart (2), Anne Paul (4), the AlpArray Working Group (5),

The Liguro-Provencal-basin was formed as a back-arc basin of the retreating Calabrian-Apennines subduction zone during the Oligocene and Miocene. The resulting rotation of the Corsica-Sardinia block is associated with rifting,…

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Crustal contamination and rare earth element enrichment in the Nooitgedacht Volcano, South Africa
2023
Mohsin Raza1, R. Johannes Giebel2, Jochen Kolb3, Benjamin F. Walter3

Carbonatites are igneous rocks with significant concentrations of rare earth elements (REEs) and other important metals. Despite their economic potential, their origin and evolution are poorly understood. Crustal contamination can…

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Crustal growth and reworking in the early Archean Narryer Terrane: new evidence from strontium isotopes in apatite inclusions
2022
Jack Gillespie1, Peter D. Kinny1, Aaron J. Cavosie1, Christopher L. Kirkland1, Laure Martin2, Malcolm Roberts2, Matvei Aleshin2, Denis Fougerouse1, Zakaria Quadir1, Alexander A Nemchin1

The limited preservation of ancient crustal material poses a challenge for understanding the composition of Earth’s early crust. As a result of poor preservation and near-ubiquitous overprinting by later geological…

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Crustal structure and margin configuration of the La Baja Guajira basin, Colombia: regional 2D seismic reflection interpretation, gravimetric and thermal modelling
2021
Leidy Castro-Vera1,2, Ralf Littke1, Stefan Back1, Rocío Bernal-Olaya3

The La Baja Guajira Basin (LBGB) is the primary gas-producing region of Colombia and represents South America’s northernmost prolongation. This study presents an analysis of regional 2D-seismic reflection data of…

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Crystal Growth and Characterization of the 12L-Perovskite Ba4CeIr3O12
2022
Henrik Schilling1, Petra Becker1

Highly frustrated magnetic systems are of great interest due to their exceptional properties and are topic of active research in solid state sciences. Within these systems, there are promising structures…

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Crystallisation sequence of a REE-rich carbonate melt: an experimental approach
2021
Valentin Mollé1, Fabrice Gaillard1, Zineb Nabyl1, Johann Tuduri2, Ida Di Carlo1, Saskia Erdmann1

Carbonatites host the main REE deposits in the world, with bastnaesite being the main REE-bearing mineral of interest. However, the nature of the enrichment process, magmatic vs hydrothermal, is still…

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Crystallization and nucleation study of transition metal phosphates: M-phosphate octahydrate and M-struvite
2022
Stephanos Karafiludis1, Ana Guilherme Buzanich2, Franziska Emmerling1, Tomasz Maciej Stawski2

Industrial and agricultural waste streams (waste waters, sludges, tailings etc.) which contain high concentrations of NH4+, PO43- and transition metals are environmentally harmful and toxic pollutants. Typically, separate pathways have…

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Crystallization conditions of authigenic quartz from salt of the Zechstein basin inferred from their triple oxygen isotope composition
2022
Fabian Zahnow1, Michael Tatzel1, Andreas Pack1

The triple oxygen isotope composition of authigenic quartz allows reconstructing formation temperature and isotopic composition of the fluid with which the quartz had equilibrated [1]. We studied authigenic quartz grains…

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Curating data and samples in the long-tail – tools and examples from GFZ Data Services
2021
Kirsten Elger, Florian Ott

GFZ Data Services, an international research data repository for the Earth sciences domain and Allocating Agent for the IGSN Global Sample Number (IGSN), is operated under the umbrella of the…

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Current understanding of sources and quantities of geological and biological methane emissions into the atmosphere
2023
Giuseppe Etiope1

Methane (CH4) is an important greenhouse gas, but our understanding of the magnitude of its sources is fraught with considerable uncertainties. Quite neglected in early atmospheric methane budget studies, Earth’s…

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Current use of geological resources under the view of sustainability – examples from the UNESCO Global Geopark Harz . Braunschweiger Land . Ostfalen
2021
Henning Zellmer1, Volker Wilde2

When it comes to the mining and use of local geological raw materials, a reflexive, sometimes undifferentiated social rejection arises. The ore, hydrocarbon and coal consumption have now been reduced…

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Cyclic loading of magnetite bearing rocks: modifications of structure, magnetic and elastic properties
2021
Helena Fuchs, Boris Reznik, Agnes Kontny, Frank Schilling

Repeated seismic activity can cause progressive failure of rock masses due to material fatigue [1]. To simulate induced seismic loading, an iron ore with alternating quartz- and magnetite-rich layers from…

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Cyclostratigraphic investigations with special emphasis on half-precession signals using XRF-data from ODP Site 663 (Eastern Equatorial Atlantic)
2022
Arne Ulfers1, Christian Zeeden1, Stefanie Kaboth-Bahr2, Thomas Westerhold3, Ursula Röhl3

The characteristics of half-precession (HP) cycles (~9,000 – 12,000 years) are still poorly understood, despite their appearance in numerous records. Previous studies on European terrestrial and marine records indicate a…

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Daily growth rate quantification in fossil giant clam shells with Daydacna
2023
Iris Arndt1, Douglas Coenen1, David Evans2, Willem Renema3, Wolfgang Müller1

Tridacna shells feature macroscopically visible bands (at mm scale) as well as microscopically visible daily banding (at µm scale). To evaluate the lifespan of an individual, the presumably seasonal macroscopically…

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Das „Puzzle Bodenbewegung“ im Kavernenfeld Epe
2022
Tobias Rudolph1, Martha Poplawski1, Peter Goerke-Mallet1

Die Überwachung der Bereitstellung von Georessoucen stellt eine komplexe Herausforderung dar. Bildlich gesprochen handelt es sich um Puzzle bei dem nicht alle Teile vorhanden sind und nicht vollständig klar ist,…

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Das Geologische Landesamt Hamburg – Ein Zustandsbericht im Jahr 2023
2023
Alf Grube1, Susanne Aarburg1, Kai Damerau1, Christina Götz1, Thomas Haupt1, Jens Kröger1, Lothar Moosmann1, Udo Quek1, Ingolf Stüven1

Das Geologische Landesamt Hamburg wird in diesem Jahr 75 Jahre alt. Die Tätigkeiten der Vorläuferinstitutionen reichen über 100 Jahre zurück. Die heutige Kernaufgabe des GLAHH ist nach GeolDG die Sammlung,…

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Das jüngste Kapitel in der Erkundungsgeschichte auf Kalisalze im Südharz-Revier: Bergwerkseigentum Ohmgebirge der Südharz Kali GmbH
2023
Sabine van der Klauw1, Ricarda Hanemann1, Stephan Pfeifer2, Christian Fritze2, Marie-Luise Richter2, Liz de Klerk3, Andreas Jockel2

Die Südharz Kali GmbH, eine 100%ige Tochtergesellschaft der South Harz Potash Ltd., eine in Australien gelistete Aktiengesellschaft, hat 2017 das Bergwerkseigentum (BWE) Ohmgebirge erworben und beabsichtigt dort die Gewinnung von…

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Das natürlich geschlossene System (NGS) – Inzidenz der reflexiven und transitiven Eigenschaften in der Geologie
2021
Hans Eckhard Offhaus

Das natürlich geschlossene System (NGS), das von (Stensen Niels 1669) begründet wurde, ist ein Modell des Komplexes von exakt gemessenen Parametern dualer Gesteinssysteme der Geologie. Die angewandte Messtechnik in den…

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Das Natürlich Geschlossene System (NGS) eine axiomatische Triade der Geologie
2023
Hans Eckhard Offhaus1

Neben geologischen besitzen Gesteinsgrenzen auch die mathematische Eigenschaft der Gleichheit oder der Kongruenz. Im Einheitskubus des NGS können durch die Mittelsenkrechte vier kongruente Dreiecke in der lotrechten Ebene und vier…

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Data Journals – Bridging the worlds of data and research
2021
David Carlson1, Kirsten Elger2, Jens Klump3, Ge Peng4, Johannes Wagner5

In less than one decade the open-access data journal Earth System Science Data (ESSD, a member of the Copernicus Open Access Publisher family) grew from a start-up venture into one…

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Data Management for the App UmweltNAVI of the Federal State of Lower Saxony in Germany
2023
Joachim Müller1

The App UmweltNAVI Niedersachsen (see the poster in session „4.10“ or https://umwelt-navi.info/) communicates geospatial data to a broad user community of education, individuals or experts. In order to adequately present…

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Data-driven Energy Transition: Why is subsurface data so critical for success?
2023
Jürgen Grötsch1

The amount of digital subsurface and geoscience data has grown exponentially over the past few decades with many companies, researchers and government organizations dealing with rapidly growing Petabyte-scales of data….

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Dating and Rating Landscape Evolution with Geochemical Methods on Geomorphic to Geologic Time Scales
2021
Madella, Andrea; Falkowski, Sarah; Eizenhöfer, Paul R.; Glotzbach, Cristoph

The Earth’s surface is under constant change. Tectonic, climatic, biogenic and anthropogenic forcings have a measurable impact on erosion, weathering and surface uplift. Information on the interactions among these processes…

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Dating of weathering and oxygenation events in the Keonjhar Paleosol, Singhbhum Craton, East India
2022
Melisande Pfennig1, Eric Hasenstab1, Frank Wombacher1, Jaganmoy Jodder2, Axel Hofmann2, Carsten Münker1

The chemical inventory of Archean paleosols provides crucial constraints on early paleoclimate and paleoredox conditions. However, it often remains ambiguous whether recent weathering has also affected such early signals. This…

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Debunking the myth of Germany being a country poorly endowed in high technology raw materials
2022
Jens Gutzmer1

For several decades, there has been a widely accepted paradigm that „Germany is rich in poor ore deposits“. This paradigm was communicated with conviction especially by experts, i.e. geoscientists active…

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Decadal sea surface temperature variability in the Eastern Mediterranean during the Last Interglacial
2020
Igor Obreht (1), David De Vleeschouwer (1), Lars Wörmer (1), Michal Kucera (1), Devika Varma (1), Thomas Laepple (1,2), Jenny Wendt (1), Matthias Prange (1), Sri D. Nandini-Weiss (1), Hartmut Schulz (3) & Kai-Uwe Hinrichs (1)

Precise future predictions of Mediterranean sea surface temperature (SST) variability as one of the most sensitive regions to climate change are hampered by insufficient knowledge of accurate SST reconstructions in…

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Decimeter-scale hydraulic testing of pre-existing fractures (HTPF) under anisotropic stress conditions. Part 1: Experimental setup
2023
Alexander Cadmus1, Julian Osten2, Mohammadreza Jalali2, Raul Fuentes1, Florian Amann3

Sustainable development of enhanced geothermal systems (EGS) requires a comprehensive understanding of the in-situ stress conditions. Among several techniques developed in the last decades, Hydraulic Testing of Pre-existing Fractures (HTPF)…

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Decimeter-scale hydraulic testing of pre-existing Fractures (HTPF) under anisotropic stress conditions. Part 2: Test procedure and results
2023
Julian Osten1, Alexander Cadmus2, Mohammadreza Jalali1, Raul Fuentes2, Florian Amann3

To extract heat from tight deep subsurface formations, hydraulic stimulation is used to create efficient heat exchangers in the context of enhanced geothermal systems (EGS). Successful geothermal reservoir initiation requires…

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Deciphering the exhumation path of granulite facies rocks based on mineral reaction textures and monazite geochronology
2022
Dominik Sorger1, Christoph A. Hauzenberger2, Fritz Finger3, Manfred Linner4, Etienne Skrzypek2, Simon Schorn2, Elena Sizova2

The formation of mineral reaction textures such as coronae or symplectites is commonly attributed to post metamorphic peak processes. Thus, they can be used to make implications about the retrograde…

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Deciphering the Gypsum – Anhydrite Phase Transition in the Atacama Desert
2022
Niklas Wehmann1, Christoph Lenting1, Sandro Jahn1

Present as gypsum (CaSO4∙2H2O), bassanite (CaSO4∙0.5H2O) and anhydrite (CaSO4), calcium sulphates comprise a significant fraction of the surface and soil in the Atacama Desert.Field observation suggest a secondary formation process…

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Deciphering the mechanisms of crustal formation in the Early Earth: Insights from Ti isotopes
2022
Liam Hoare1, Laura Rzehak-Wissink1, Sebastian Kommescher2, Moritz Jansen3, Elis Hoffmann4, Raúl Fonseca1

Archean tonalite-trondjemite-granodiorite (TTG) plutonic rocks provide a unique, yet imperfectly understood record of crustal formation. Due to the incomplete nature of this record, there are varying interpretations on the prevailing…

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Decoupled dust deposition and ocean productivity in the Antarctic Zone of the Southern Ocean over the past 1.5 million years
2021
Michael E. Weber1, Ian Bailey2, Sidney R. Hemming3, Yasmina M. Martos4,5, Brendan T. Reilly6, Thomas A. Ronge7, Stefanie Brachfeld8, Trevor Williams9, Maureen Raymo3, Simon T. Belt10, Lukas Smik10, Hendrik Vogel11, Victoria Peck12, Linda Armbrecht13, Alix Cage14, Fabricio G. Cardillo15, Zhiheng Du16, Gerson Fauth17, Christopher J. Fogwill14,18, Marga Garcia19,20, Marlo Garnsworthy21, Anna Glüder22, Michelle Guitard23, Marcus Gutjahr24, Iván Hernández-Almeida25, Frida S. Hoem26, Ji-Hwan Hwang27, Mutsumiq Iizuka28, Yuji Kato29, Bridget Kenlee30, Suzanne OConnell31, Lara F. Pérez12, Osamu Seki32, Lee Stevens33, Lisa Tauxe6, Shubham Tripathi34, Jonathan Warnock35, Xufeng Zheng36

Southern Ocean paleoceanography provides key insights into how iron fertilization and oceanic productivity developed through Pleistocene ice-ages and their role in influencing the carbon cycle. We report the first high-resolution…

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Decoupled radiogenic Nd and Hf isotopes of clays reveal South Asian Monsoon control of silicate weathering intensity
2023
Ed Hathorne1, Rasmus Thiede2, Anja Conventz2, Ralph Schneider2, Martin Frank1

The weathering of silicate rocks removes CO2 from the atmosphere-ocean system on geological timescales but the time required for weathering intensity to respond to changes in climate is poorly constrained….

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Deep geothermal potentials of Hesse as derived from geological 3D models and thermo-hydraulic simulations
2020
Nora Koltzer (1), Judith Bott (1), Kristian Bär (2), Maximilian Frick (1), Mauro Cacace (1) & Magdalena Scheck-Wenderoth (1)

Geothermal power plants require reservoirs of high temperature, high flow rates and sustainable recharge. Typically, there is a trade-off between increasing temperatures and decreasing fluid availability (due to pore space…

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Deep hydrochemical profile through the Alps – solute acquisition during distinct water-rock-interaction along the Sedrun section of the Gotthard Base Tunnel
2021
Ingrid Stober, Kurt Bucher

During drilling of the Gotthard Base Tunnel through the Central Alps the exposed fractured rocks and the frequent water inflows provided a deep insight into regional hydrogeological processes in orogenic…

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Deep thermal fingerprints of different tectonic environments in continental areas from data-integrated process models
2023
Magdalena Scheck-Wenderoth1, Ajay Kumar2, Mauro Cacace2, Judith Bott2, Denis Anikiev2

The deep thermal field in the continental lithosphere varies significantly depending on the age of the lithosphere, its tectonic setting and the time since the last tectonic event. Accordingly, orogens…

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Deep-stuck Ti-rich carbonatites: A link to the composition of primitive carbonatite melts?
2023
R. Johannes Giebel1, Benjamin F. Walter2, Michael A.W. Marks3, Gregor Markl3

Carbonatitic melts are subject to different processes during their ascent (e.g., fractional crystallization and crustal contamination), which may cause a strong change in their composition. Their original composition has not…

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Deepwater Systems Reloaded: Advances on our understanding on submarine lobe deposits
2021
Yvonne T. Spychala1, David M. Hodgson2, Joris T. Eggenhuisen3, Stephen Flint4, Christopher Stevenson5, Mike Tilston6, Ian A. Kane4, Amadine Prelat7, Florian Pohl8

Submarine lobes are high aspect ratio sand-rich deposits that are fed by turbidity currents and debris flows via channels in deep-marine settings. As a major component of submarine fans, they…

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Deformation mechanisms in shallow-crustal active fault zones: Implications from the Main Frontal Thrust of Himalayas
2020
Dyuti Prakash Sarkar (1), Jun-ichi Ando (1), Kaushik Das (1), Gautam Ghosh (2) & Prabir Dasgupta (3)

The nature of the shallow-crustal active faults has been widely studied to elucidate their stress accommodation mechanisms and response to the fault movement in terms of stress localizations and ultimately…

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DemoStorage – planning and monitoring of an ATES demonstrator site in an urban environment
2023
Detlev Rettenmaier1, Roman Zorn1, Alexandra Mauerberger1, Blum Philipp2, Herrmann Matthias2, Viernickel Michael3, Eichelbaum Fabian3, Fleuchhaus Paul4, Stoeck Thorsten5, Katzenmeier Sven5, Breiner Hans-Werner5, Hahn Hans-Jürgen6, Fuchs Andreas6

Aquifer thermal energy storage (ATES) is comparatively rarely used in Germany. Since there is a lack of demonstration plants nationally, the goal of our BMBF-funded joint project “DemoSpeicher” (Development and…

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Denudation and weathering rates of carbonate lithologies from meteoric 10Be/9Be ratios
2022
Hella Wittmann1, Julien Bouchez2, Damien Calmels3, Jerome Gaillardet2, Daniel Frick1, Nicole Stroncik1, Georges Aumaître4, Didier Bourlès4, Karim Keddadouche4, Friedhelm von Blanckenburg5

During the past decades, cosmogenic nuclides, such as in-situ produced 10Be, evolved as state-of-the-art tool to quantify millennial-scale denudation in quartz-rich landscapes. However, applications of cosmogenic nuclides to carbonate-dominated lithologies…

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Denudation rates from meteoric 10Be/9Be in lithologically heterogeneous catchments
2022
Nestor Gaviria-Lugo1, Charlotte Läuchli2, Anne Bernhardt2, Patrick Frings1, Dirk Sachse1, Hella Wittmann1

Accurate determination of denudation rates is crucial for the quantification of Earth surface processes like soil formation and the consumption of CO2 during silicate weathering. In situ 10Be is the…

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Depletion of Titanium in the mantle of the Earth
2022
Herbert Palme1, Hugh O'Neill2, Julien Siebert3

Many authors have used the chemical composition of peridotitic rocks from a variety of geological settings to estimate the composition of the upper mantle of the Earth, (PUM-primitive upper mantle)….

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Depletion, Density, and Deposits through the mantle transition zone (MTZ)
2021
Thorsten Joachim Nagel1, Anders Vesterholt1, Christian Schiffer2

We present phase diagrams of variously enriched and depleted mantle rocks down to 800 kilometers depth and explore density as the parameter governing convection and compositional stratification. Some results are…

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Deportment study of critical elements – The Ruwai Pb-Zn-Ag skarn deposit in Central Kalimantan, Indonesia, as a case study
2023
Shelly Mardhia Faizy1, Alkiviadis Kontonikas-Charos2, Mathias Burisch3, Arifudin Idrus4, Max Frenzel1

The Ruwai Pb-Zn-Ag skarn deposit is located within the Schwaner Mountain Complex in Central Kalimantan, Indonesia. It is the largest polymetallic skarn deposit in Kalimantan with the resources is estimated…

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Deposition of Subglacial Lake Sediments underneath the Laurentide Ice Sheet? – Sediment Cores from Lake Melville, Canada, provide first Evidence
2021
Sophie Kowalski1,2, Christian Ohlendorf1, Jens Matthiessen2, Andrea Catalina Gebhardt2

Lake Melville is a fjord-type lake located in Labrador, Eastern Canada, as part of the Hamilton Inlet System. It is significantly characterised by its eastern connection to the Labrador Sea…

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Depositional and diagenetic processes in carbonate systems
2021
Foubert, Anneleen (1); Pederson, Chelsea (2); Reuning, Lars (3)

Modern carbonate systems such as reefs provide livelihood and ecosystem services, such as coastal protection and food security, for hundreds of millions of people. Fossil carbonate systems are important archives…

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Depositional conditions controlling organic carbon burial in fine-grained sediments of the North Sea – The Helgoland Mud Area as a test field
2023
Daniel Mueller1, Bo Liu2, Walter Geibert2, Elda Miramontes3, Heidi Taubner3, Lasse Sander4, Moritz Holtappelsa5, Susann Henkel5, Ingrid Dohrmann2, Denise Bethke2, Jessica Volz2, Kai-Uwe Hinrichsb Hinrichs6, Sabine Kasten7

Fine-grained marine sediments are the largest permanent carbon sink on our planet. We chose the Helgoland Mud Area (HMA) as it represents the most important depocenter of such sediments in…

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Depth profile sampling by femtosecond-LA-(MC-)ICP-MS for high spatial resolution analyses of chemical and isotopic diffusion profiles
2022
Martin Oeser1, Ralf Dohmen2, Ingo Horn1, Stefan Weyer1

Femtosecond laser ablation coupled to MC-ICP-MS has been proven to be a powerful means to analyze isotope ratios of “non-traditional” stable isotope systems with high spatial resolution, precision and accuracy….

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DEPTH STRUCTURE FEATURES OF LARGE ZONES OF HYDROGEN DEGASSING IN GERMANY BY RESULTS OF FREQUENCY-RESONANCE PROCESSING OF SATELLITE AND PHOTOS IMAGES
2023
Nikolay Yakimchuk1, Ignat Korchagin2, Arzu Javadova3

The results of the application of the mobile direct-prospecting technology of frequency-resonance processing and interpretation of satellite images and photographs in large areas and local areas of hydrogen degassing in…

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Der Sprung über den Harz – Ersterkundung auf Kalisalze im Südharz-Revier vor 135 Jahren
2023
Andreas Johann Jockel1, Henry Andreas Michael Rauche1

Nachdem die Kalidüngemittelproduktion in den 1860er Jahren in Staßfurt, im nördlichen Harzvorland, ihre weltweite Premiere erlebte, sich zunächst auf das sogenannte Nordharz-Kalirevier beschränkte, begann auf Betreiben des preußischen Bergbeamten Pinno…

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Deriving basin-wide erosion/denudation rates of basaltic rocks using cosmogenic Kr isotopes, vulcanic complex Vogelsberg, Germany
2022
Sabrina Niemeyer1, Joel Mohren1, Tibor J. Dunai1

The Vogelsberg area located in Hessen, Germany, comprises the largest contiguous volcanic complex in Central Europe, covering an area of about 2300 km². After volcanic activity ceased during the Mid…

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Description of scientific metadata at the Federal Waterways Engineering and Research Institute (BAW)
2023
Vikram Notay1

The Federal Waterways Engineering and Research Institute acts as a consultant for and supports the Federal Ministry of Digital and Transport (BMDV) and the Federal Waterways and Shipping Administration (WSV)…

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Design and application of messenger nanoparticle tracers for multi-parameter reservoir exploration
2021
Laura Spitzmüller1, Jonathan Berson2,3, Bastian Rudolph2,3, Fabian Nitschke1, Thomas Schimmel2,3, Thomas Kohl1

The inaccessibility of geothermal reservoirs makes the accurate determination and monitoring of reservoir properties and conditions difficult and is a major problem in reservoir engineering. We present an approach for…

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Detailed investigation of the Asse salt structure (Subhercynian Basin) based on new 3D seismic data
2023
Michael Warsitzka1, Jan Witte2, Kai Gruschwitz3, Maximilian Scholze1, Christoph Nachtweide1, Christian Buxbaum-Conradi1

The Asse salt structure is a salt-cored anticline with steep, locally overthrusted flanks located in the Subhercynian Basin. It is an excellent example of salt structures in the North German…

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Detailed multi-stratigraphic correlation of the continental latest Permian to Middle Triassic across Central Europe
2023
Michael Szurlies1

In Central Europe, the about 1 km thick Buntsandstein was deposited in the large intracratonic Central European Basin (CEB). The Buntsandstein sedimentary succession displays a striking cyclicity of varying magnitude….

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Determinants of ground source heat pump systems’ market acceptance: Empirical findings from Greece Spyridon Karytsas1,2
2021
Spyridon Karytsas1,2

The residential sector consumes a significant amount of energy globally, with the majority being produced through the use of fossil fuels. Residential microgeneration technologies, such as photovoltaic systems and micro…

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Determination of phases of warm climate during MIS 3 in Central Europe based on precisely dated speleothems from Bleßberg Cave, Germany
2021
Jennifer Klose1, Sebastian F. M. Breitenbach2, Birgit Plessen3, Hubert Vonhof4, Denis Scholz1

Speleothems provide a great opportunity for paleoclimate reconstruction because they occur almost worldwide and can be dated very precisely using the U-series disequilibrium method. The most commonly used climate proxies…

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Determination of seismic resolution: Some practical aspects from land seismic data
2023
Patrick Musmann1

Reflection seismics is the most common geophysical method for obtaining structural images of the subsurface. It can image subsurface structures over large areas and depth ranges at high resolution. In…

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Determining Dilute Condition Dissolution Rates with Stirred Reactor Coupon Analysis
2022
Christoph Lenting1, Simon Schablack1, Joseph V. Ryan2

With many countries deciding on deep geological disposal of high-level nuclear waste, the corrosion behaviour of the glassy waste matrix is of utmost importance. Multiple studies determined glass dissolution rates…

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Detrital garnet petrology challenges Paleoproterozoic ultrahigh-pressure metamorphism in western Greenland
2023
Jan Schönig1, Carsten Benner1, Guido Meinhold2, Hilmar von Eynatten1, N. Keno Lünsdorf1

Modern-style plate tectonics is characterized by the global operation of deep and cold subduction involving ultrahigh-pressure and blueschist-facies metamorphism. This is a common process since the Neoproterozoic, but a couple…

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Developing an EU International Centre of Excellence on Sustainable Resource Management to support UNRMS
2023
Meta Dobnikar1, Snježana Miletić1, Zoltán Horváth2

Sustainable use of mineral resources that we need for energy storage, power generation and the transition to climate neutrality, and which is at the same time more efficient and integrated,…

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Development of a fluid treatment strategy to enable combined raw material and freshwater recovery from geothermal fluids
2021
Valentin Goldberg1, Daniel Winter2, Fabian Nitschke1, Diego Morata3, Joachim Koschikowski2, Thomas Kohl1

The energy transition and the associated need for non-energy, mineral raw materials have prompted the German government to expand research and development activities along the entire value chain. It is…

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Development of a routine method for the chemical and mineralogical characterization of Li- and Mn-containing slags from the recycling of NMC-type lithium-ion batteries (LIBs)
2023
Marko Ranneberg1, Torsten Graupner1

In the BMBF-funded project PyroLith, a methodical approach for the recovery of Li from NMC type LIB via a combined pyro- and hydrometallurgical process route is being developed. For this…

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Development of a water storage toolbox for surface-induced managed groundwater recharge
2023
Jan Stautzebach1, Jörg Steidl1, Christoph Merz1

Water stress is increasing in Northeast Germany due to climate change. New approaches for water management are needed to mitigate the impacts on the water system and water users. Therefore,…

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Development of new formats of Citizen Science with micrometeorites for multidisciplinary school education
2023
Lutz Hecht1, Dieter Dominik1, Andrea Miedtank1, Alexandra Moormann2, Aria Tilove2

In addition to its importance for basic scientific research, Citizen Science involving micrometeorites collected from the roofs of Berlin has a special potential for promoting scientific literacy and the understanding…

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DGGV-Factsheet
2023
Peter Buchholz, Jochen Kolb, Christoph Hilgers

Aktuelle Entwicklungen im Bereich der nationalen und internationalen Rohstoffsicherung. Mit der Energie– und Mobilitätswende und der zunehmenden Digitalisierung befindet sich der globale Rohstoffsektor in einem grundlegenden Transformationsprozess. Auf der einen…

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Did volcanoes erupting in estuaries (Moodies Group, Barberton Greenstone Belt, BGB) serve as microbiological cradles during the Archean?
2020
Deon Janse van Rensburg (1), Sebastian Reimann (2), Christoph Heubeck (1), Andreas Zametzer (2) & Paul Fugmann (3)

The Moodies Group is classically described as a synorogenic sequence of quartz-rich sandstone, conglomerate, fine-grained sediments with subordinate ferruginous sediments and volcanic components. A prominent basaltic lava (MdL) approx. mid-section…

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Differences in decompression of the high-pressure Cycladic Blueschist Unit (Naxos Island, Greece): what can inclusions tell us?
2021
Alexandre Peillod1, Jarosław Majka2,3, Uwe Ring4, Kirsten Drüppel5, Clifford Patten1, Andreas Karlsson6, Adam Włodek3, Elof Tehler4

Determining the tectonic evolution and thermal structure of a tectonic unit that experiences a subduction-related pressure temperature (P-T) loop is challenging. Within a single unit, P-T conditions can vary from…

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Diffraction intensities of ordered omphacite, measured from precession electron diffraction
2022
Nobuyoshi Miyajima1, Lucas M. Calvo1, Tiziana Boffa Ballaran1, Greta Rustioni1

Cation ordering in minerals at high temperatures is important for understanding the metamorphic processes in the interior of the Earth. Omphacite, (Na0.5,Ca0.5)(Al0.5,Mg0.5)Si2O6 undergoes an order transition from C2/c to P2/n…

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Digging into Eocene hothouse climate variability: Linking X-ray fluorescence (XRF) scanning and palynology of Messel sediment cores
2021
Stefanie Kaboth-Bahr1,2, André Bahr2, Olaf Lenz3,4, Volker Wilde3, Sonja Wedmann5, Jörg Pross2

The late early to early middle Eocene (~48 Ma) maar lake sediments of the famous Messel fossil-pit, located near Darmstadt, SW Germany, represent a prime archive for climate dynamics operating…

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Digital educational content in geosciences
2023
Mandy Duda1, Julia Godlewska1, Marc Sören Ogan1, Alexander-Dean Seiling1, Tobias Backers1

Fieldwork represents a highlight for most students in geosciences but is associated with challenges related to diversity. Due to long periods of absence, high costs, remote destinations, and physical and…

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Digital educational tools – smart solutions for heavy stuff
2022
Edouard Grigowski1, Anne Zacke1, Fides Friedeberg1, Gösta Hoffmann2

Although geoscientific topics (e. g. climate change, natural hazards, geoheritage) engage public, media and politicians, the visibility of geosciences as subject labs behind. Classic ways of public relations are still…

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Digital field methods in geoscience education and outreach
2021
Gösta Hoffmann, Valeska Decker, Sabine Kummer, Edouard Grigowski, Rosalie Kunkel

The scientific discipline „geology“ has relied on outcrops as the primary source of information since its beginnings. The initial equipment to analyse the rocks in these outcrops was simple: hammer,…

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Digital fieldtrip into the Vulkaneifel Unesco Global Geopark (Germany)
2020
Sabine Kummer(1), Andreas Schüller (3) & Gösta Hoffmann (1,2)

This virtual fieldtrip will lead the participants into the geopark „Vulkaneifel“. The aim of the fieldtrip is a) to introduce the geopark; b) to highlight the abilities of the smartphone…

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Digital methods for the planning and construction of geothermal plants
2023
Holger Kaiser1

Digitalisation helps to improve planning, make processes more transparent, save resources and counteract the staff shortages that will become even greater in the future. BAUER Resources GmbH has been using…

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Digitalisierung von unüblichen geologischen Informationsträgern – vom Handstück zum 3D-Objekt
2023
Rouwen Johannes Lehné1, Heiner Heggemann1

Im Rahmen der geologischen Landesaufnahme werden in Hessen, wie in allen anderen Bundesländern auch, seit weit über 100 Jahren wertvolle Gesteinsproben (Bohrkerne, Handstücke, Fossilien, Mineralien) gesammelt, beschrieben, analysiert und archiviert….

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Disclosing the magma genesis and storage beneath the Cretaceous Ebersbrunn diatreme, Saxony: Evidence from mineral chemistry and juvenile fragments
2023
Hripsime Gevorgyan1, Alexander Repstock2, Irka Schüller3, Horst Kämpf3

The Mesozoic to Cenozoic intraplate to rift-related magmatic activity in central Europe spawned both, intrusive and extrusive carbonatites. Located within the intersection of the Regensburg-Leipzig and Gera-Jachýmov fault zones, the…

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Discovering minerals and rocks
2022
Birgit Kreher-Hartmann1

We all like to go on a discovery tour – regardless of age. And we like to use all our senses. But the most important thing in everything we do…

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Dislocation creep flow laws of wet quartzite: the significance of pressure and slip systems
2020
Lucy Lu (1) & Dazhi Jiang

An accurate flow law for dislocation creep of quartzite is critical for the understanding of continental rheology and geodynamic models. Despite many years of effort, existing creep experiments have yielded…

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Dissecting a granulite-facies migmatite: Leucosome – melanosome – bulk rock relationships and the role of garnet (Namaqua Metamorphic Province, South Africa)
2022
Jürgen Reinhardt1, Aidan Leetz1, Russell Bailie1

A geochemical-mineralogical study carried out on a migmatite from the granulite zone of the Bushmanland Domain in the Grenville-cycle Namaqua-Natal Belt in southern Africa reveals an anatectic process largely controlled…

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Dissecting the Sadisdorf Sn-W-Li vein and greisen system
2022
Dino Leopardi1, Jens Gutzmer1, Bernd Lehmann2, Mathias Burisch1

The Sadisdorf Sn-W-Li-Cu prospect, Germany, comprises magmatic-hydrothermal greisen and vein-style mineralization associated to a small alkali-feldspar granite porphyry. Petrographic and fluid inclusion data across the full extent of the deposit…

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Distribution and isotope fractionation of traces during carbonate mineral formation from amorphous precursors
2022
Vasileios Mavromatis1, Etienne Balan2, Jacques Schott1

The formation of calcium carbonate from an amorphous precursor phase is a crystallization route selected by a large number of marine calcifiers. To date, however, only little is known about…

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Distribution of Holstein interglacial deposits in Brandenburg and Berlin (Germany)
2023
Jaqueline Strahl1, Sophia Rütters1, Angela Sonntag1

The Holstein interglacial is classified as the period between the end of the Elster glaciation to the beginning of the Fuhne glaciation. The deposits in Brandenburg are supplied by limnic…

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Distribution of rare earth elements and yttrium in fjord waters: evidence for geogenic and anthropogenic sources in Norwegian fjords
2023
Anna-Lena Zocher1, Tomasz Maciej Ciesielski2, Stefania Piarulli3, Julia Farkas3, Michael Bau1

The picturesque fjords along Norway’s coastline play an important role for the country’s tourism and aquaculture industry. Despite their economic importance for the country, surprisingly little is known about the…

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Distribution, duration and size of slow-slip events in the eastern Mediterranean: insights from the Hellenic subduction system
2023
Vasso Saltogianni1, Vasiliki Mouslopoulou2, Michail Gianniou3, Andrew Nicol4, Benjamin Männel5, Jonathan Bedford6, Onno Oncken5, Stelios Mertikas7

Slow-slip events (SSEs), although widely recorded in various convergent margins globally, only recently have been reported in the Eastern Mediterranean, with one of them triggering the 2018 ~M7 Zakynthos Earthquake…

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Divide migration and escarpment retreat in Madagascar and the Western Ghats of India
2023
Yanyan Wang1, Sean Willett1, Datian Wu2, Negar Haghipour1, Marcus Christl3

A great escarpment is characterized with extremely asymmetrical topography with a steep and high-relief mountain range rimming a low-relief high plateau. Measured erosion rates contradict the observed high relief of…

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Do pseudo-sands‘ internal structures determine biogeochemistry of tropicals‘ critical zone?
2023
Simone Kilian Salas1, Paul A. Schroeder2, Susanne K. Woche3, Stephan Peth3, Jens Boy3, Georg Guggenberger3, Hermann F. Jungkunst1

Deeply weathered soils are iconic components of the tropical critical zone. Being short of exchangeable nutrients, physical features beyond sheer depth determine more than elsewhere the provision of life-sustaining resources….

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Do thermomechanical heterogeneities in the upper mantle control crustal deformation?
2023
Judith Bott1, Magdalena Scheck-Wenderoth2, Ajay Kumar1, Mauro Cacace1, Sebastian Noe3, Jan Inge Faleide4

The architecture of the crust in intracontinental Western and Central Europe is well constrained by multidisciplinary geoscientific data. This low-strain intraplate setting is known for its widely distributed seismicity with…

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Does regional geology help to assess earthquake hazard in continental interiors?
2021
Tim Hahn1, Jonas Kley1, Diethelm Kaiser2, Thomas Spies2

Earthquake hazard assessment is crucial for different planning tasks, including the search for a German nuclear waste repository. Germany is located in an intraplate setting with a low level of…

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Does the Middle Miocene rise of the Greater Himalaya cause the slow down of Southern Tibet exhumation?
2023
Rasmus C. Thiede1, Dirk Scherler2, Chistoph Glotzbach3

The Himalaya is the highest and steepest mountain range on Earth and forms today efficient north-south barrier for moisture-bearing winds. 1D-thermokinematic modeling of new zircon (U-Th)/He bedrock-cooling ages and >100…

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Downhole logging data and its suitability for cyclostratigraphy and time series analysis
2022
Christian Zeeden1, Arne Ulfers1, Mehrdad Sardar Abadi1, Mathias Vinnepand1, Katja Hesse2, Katharina Leu1, Thomas Wonik1

Extensive borehole logging datasets are being gathered for commercial and scientific purposes, but studies exploring their full potential through applying time series analysis remain sparse. Typically, fast available logging data…

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Drillcore GT1 of the ICDP Oman Drilling Project: insights into magmatic processes beneath fast-spreading mid-ocean ridges
2020
Dominik Mock (1,2), Benoit Ildefonse (2), Dieter Garbe-Schönberg (3), Samuel Müller (3), David Axford Neave (4), Jürgen Koepke (1), Oman Drilling Project Science Team (5)

The Samail ophiolite in Oman provides an ideal field laboratory for investigating the processes taking place beneath fast-spreading mid-ocean ridges (MORs). Drill site GT1, which was sampled by the Oman…

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Drilling in a World Heritage Site
2023
Nonkululeko Phumelele Mashele1, Christoph Heubeck2, BASE Onsite Geoscience Team2, Astrid Christianson3

The ICDP-Project BASE investigated Archean Surface Environments by coring the ca. 3220 Ma Moodies Group of the Barberton Greenstone Belt, South Africa, Oct. 2021 – August 2022. This unit represents…

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Drilling Overdeepened Alpine Valleys: First results from the Tannwald Borehole
2021
Bennet Schuster1, David C. Tanner2, Gerald Gabriel2, Thomas Burschil2, Thomas Wonik2, Frank Preusser1, Flavio Anselmetti3, Marius W. Buechi3, Sebastian Schaller3, Markus Fiebig4, Ulrike Wielandt-Schuster5

The panalpine project „DOVE“ (Drilling Overdeepened Alpine Valleys), co-funded by the International Continental Scientific Drilling Program (ICDP), is drilling a series of overdeepened glacial troughs around the Alps that were…

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Drilling the Crust – Mantle transition zone in the Oman ophiolite – the formation of massive dunites.
2023
Sven Merseburger1, Felix Marxer1, Francois Holtz1, Jürgen Koepke1

The formation of oceanic crust at mid-ocean ridges is one of the dominant processes in the chemical differentiation of our planet. Oceanic crust formed at fast-spreading ridges exhibits a relatively…

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Drivers of Topography in Fold-thrust Belts: A Perspective from Central Nepal
2021
Paul R Eizenhöfer1, Nadine McQuarrie2, Suryodoy Ghoshal2

Topography in fold-thrust belts over geologic time reflects the development of an orogenic Coulomb wedge that represents a balance of tectonic and erosional forcings. The establishment of critically tapered topography…

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Dual clumped isotope thermometry and fossil eggshells: a way to better understand the dinosaur-bird transition
2022
Mattia Tagliavento1, Amelia Davies1, Miguel Bernecker1, Philip Staudigel1, Robin Dawson2, Weifu Guo3, Jens Fiebig1

Birds evolved from dinosaurs during the Late Jurassic and they are now one of the most widespread group of vertebrates on the planet. However, some aspects of the dinosaur-bird transition,…

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Duckweeds as quasi-hyperaccumulators of rare earths and the biounavailability of Gd-based contrast agents
2022
Anna-Lena Zocher1, Franziska Klimpel1, Dennis Kraemer2, Michael Bau1

Duckweeds are widespread macrophytes in lentic waters. These small, fast-growing aquatic plants receive increasing attention as potential food supplement, which makes detailed knowledge of their chemical composition highly important. The…

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Dynamic as always – Sedimentary evolution of a coral reef island from the Spermonde Archipelago, Indonesia
2021
Yannis Kappelmann1,2, Hildegard Westphal1,2, Dominik Kneer1, André Wizemann1,3, Thomas Mann1,4

The effects of changing climate and environmental conditions on coral reef islands have received a lot of attention, and the findings are discussed broadly. The low elevation of such islands…

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Early Earth – geodynamics, environments, & the emergence of life
2021
Duda, Jan-Peter (1); Heller, René (2); Münker, Carsten (3); Reitner, Joachim (4,5)

From geodynamic processes to the long-term diversification of life – through geologic time, our planet has been influenced by a wide variety of forces. This session seeks to explore life,…

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Early Jurassic K-Ar illite age data of fault gouge from a reverse fault of the Gernsbach-Neuenbürg flexure in crystalline basement rocks of the Nordschwarzwald (SW Germany)
2023
Jens Carsten Grimmer1, Klaus Wemmer2, Mathias Hueck2, Jonas Kley2

We investigated a SSE-dipping reverse fault zone of the ENE-striking Gernsbach-Neuenbürg flexure within c. 325 Ma old coarse grained two-mica granite. The fault zone consists of a hematized, cataclastic 15-20…

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Early mantle processes inferred from high-precision 182W-142Nd isotope systematics of igneous rocks from the Singhbhum Craton, India
2023
Arathy Ravindran1, Josua Pakulla1, Jonas Tusch1, Eric Hasenstab-Dübeler1, Jaganmoy Jodder2, Axel Hofmann2, Rajat Mazumder3, Carsten Münker1

The scarcity of well-preserved exposed Precambrian rocks as well as post-emplacement metamorphism and alteration hamper a detailed understanding of mantle differentiation processes on the early Earth. This issue can be…

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Early Permian rhyolite volcanism and Jurassic alteration, Northern Schwarzwald, Germany – new evidence from geochemistry and U-Pb dating of zircon, monazite, uraninite, and xenotime
2023
Kirsten Drüppel1, Emre Agca2, Armin Zeh1, Jens Grimmer1, Michael Waitzinger3

Formation of Early Permian rhyolites in the Schwarzwald postdates the exhumation of Variscan granites and gneisses. Although similar Permian volcanics are recognized across Central Europe, little is known so far…

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Earth science education: How to narrow the gap between Earth science education potential and its low profile in schools?
2020
Nir Orion (1) & Clara Vasconcelos (2)

During the past 30 years, Earth science education (ESE) research has established a solid theoretical foundation, as well as practical strategies and techniques, for meaningful teaching of Earth science from…

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Earth sciences for schoolchildren in the Museum Mineralogia Munich
2023
Melanie Kaliwoda1, Malte Junge1, Felix Hentschel1, Wolfgang Schmahl1

The Museum Mineralogia München is the public part of the Mineralogische Staatssammlung München (MSM). The aim of the MSM is to provide knowledge transfer in natural science subjects, i.e. especially…

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Earth Surface Dynamics and Processes under Climatic and Tectonic controls
2021
Krautblatter, Michael (1); Bufe, Aaron (2); Stefanie, Tofelde (3)

Earth’s surface is subject to a complex interplay of tectonic, atmospheric, and biologic forcing and processes of chemical and physical weathering and erosion. In turn, surface processes can modulate climate,…

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Earth system science in schools: Teaching geoscientific content with the help of instructional videos
2023
Martin Meschede1

There is an urgent need to include Earth systems sciences (ESS) in the school curricula in order to enable the next generation to understand that the Earth is a dynamic…

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Earth systems education – Four decades of Research-Development-Implementation
2023
Nir Orion1

This presentation describes the milestones of four decades of Earth Science Education (ESE) research. It will describe the evolution of the ESE Group in the Department of Science Teaching at…

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Earth’s lower mantle may be harder than expected: Al, Si diffusion in bridgmanite
2022
Laura Czekay1, Nobuyoshi Miyajima1, Catherine McCammon1, Daniel Frost1

Diffusion of atoms in crystalline solids at high temperatures and pressures influences dynamic processes in Earth’s lower mantle. This study aims to better understand the physical behaviour of Earth’s most…

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Earth’s mantle: probing a hidden heavy-weight
2022
Sonja Aulbach1

Earth’s mantle comprises the vast region between the crust and core, some 84% by volume and 67% by mass – a real heavyweight. The superposition of key events – all…

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Earth’s sustainable mantle
2021
Kirchenbaur, Maria (1); König, Stephan (2)

The mantle is Earth’s largest silicate reservoir and one of its fundamental characteristics is the chemical and isotopic heterogeneity that extends down to the mineral scale. These various-sized mantle domains…

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Easy access to geological and geophysical data for the planning of underground spaces or subsurface project management in Mecklenburg-Western Pomerania
2023
Karsten Obst1, Juliane Brandes1, Sabine Matting1, André Deutschmann1, Lisa Schwark1, Johannes Kalbe1

The search for saline water springs started in the area of Mecklenburg-Western Pomerania several hundreds of years ago. First drillings to find coals seams were reported from the end of…

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Easy-to-use diagnostics of mean-term drought vulnerability
2021
Gunnar Lischeid

Facing a couple of dry and warm years which are consistent with climate change scenarios, there is now increasing need for advanced diagnostic tools for drought risk assessment at the…

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Ecohydrological partitioning through the critical zone drives groundwater recharge: an isotopic approach
2023
Doerthe Tetzlaff1

In times of accelerated global change, integrated tools are urgently needed that allow process-based, quantitative assessment of how climatic drivers interact with land cover, soil water conditions and hydrogeology to…

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Economic challenges of Fe, Co, Ni, Sc processing from complex ore deposits on the example of Sebuku Fe-(Ni)-Laterite (Indonesia)
2023
Saskia Dück1, Thomas Heinig1, Anke Schneider1, Jana Nicolai1

Securing a predictable and affordable supply of critical metals for the high-tech industry, coupled with tightening supplies and augmented competition for available resources, leads to increasing exploration of complex and/or…

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Ecotoxicological effects of rare earth elements on early life stages of fish
2021
Piarulli, Stefania (1), Hansen, Bjørn Henrik (2), Fossum, Frida (3), Kermen, Florence (3)Kvæstad, Bjarne (4, 5), Farkas, Julia (6)

Rare earth elements, comprising the 15 lanthanoids (LN; IIIb in the Periodic Table) plus yttrium are critical elements for a wide range of applications, including new and traditional industries as…

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Education through fascination: looking for ways to promote geoscience
2022
Ilja Kogan1

The course of recent debates on global warming, biodiversity crises, pandemics and anti-pandemic measures, racism, or military conflicts demonstrates how quickly societies become emotionally driven and unsusceptible to evidence. Changes…

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Effect of cyclic loading at elevated temperatures on the magnetic susceptibility of a magnetite-bearing ore
2021
Katarzyna Dudzisz1,2, Mario Walter3, Ralf Krumholtz3, Boris Reznik1, Agnes Kontny1

Rocks are often subjected to dynamic stress that occurs during earthquakes, volcanic activity as well as human-induced activities. The aim of this study is to test if mechanical fatigue in…

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Effect of deformation localization on the anisotropy of magnetic susceptibility in natural shear zone
2020
Vladimír Kolář Kusbach, Matěj Machek &Zuzana Roxerová

We derived the relationship between AMS and strain in a marble shear zone by combining rock magnetic studies, detailed microstructural analysis and CPO-based numerical modelling of the AMS. AMS ellipsoids…

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Effect of global warming on the frequency and intensity of tropical cyclones: an Early Jurassic perspective
2023
François-Nicolas Krencker1, Christian Zeeden2, Ulrich Heimhofer1

Anthropogenic warming is predicted to increase the frequency and intensity of tropical cyclones, leading to severe damage and loss of life. However, projections based on historical observations are limited due…

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Effect of shock pressure on the Verwey transition in magnetite: Modelling of the magnetic susceptibility with various distributions of transition temperatures
2022
Helena Fuchs1, Frank R. Schilling1, Agnes Kontny1

Magnetite occurs as an accessory mineral in many rocks. It shows a strong ferrimagnetic behavior with a phase transition at about 120 K (Verwey transition temperature), which causes a strong…

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Effect of the fracture aperture distribution on the heat extraction performance from the fractured geothermal systems
Saeed Mahmoodpour, Mrityunjay Singh, Kristian Bär, Ingo Sass

Fractures are main flow paths for heat extraction from fractured geothermal systems. The process of injecting cold water to extract hot water from a fractured reservoir results in thermal and…

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Effects of an oblique collision on the evolution of foreland basins: Insights from 3D numerical modeling
2023
Giridas Maiti1, Attila Balázs2, Lucas Eskens1, Taras Gerya2, Alexander Koptev3, Nevena Andrić-Tomašević1

Flexural bending of a downgoing subducting plate in response to forces from slab pull and topographic load leads to foreland basin development in front of growing mountain belts. Many foreland…

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Effects of CO2 and Ocean Mixing on Miocene and Pliocene Temperature Gradients: Strongly reduced seasonality
2023
Gerrit Lohmann1, Gregor Knorr1, Christian Stepanek1

Cenozoic climate changes have been linked to tectonic activity and variations in atmospheric CO2 concentrations. Here, we present Miocene and Pliocene sensitivity experiments performed with the climate model COSMOS. The…

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Effects of fluid composition on the precipitation behaviour and shape of minerals
2021
Susan Stipp

Minerals form by the ordered arrangement of atoms. Each mineral has a characteristic form, determined by the electron configuration of the atoms of its structure and the temperature and pressure…

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Effects of upper mantle drag on slab detachment dynamics: insights from 0D and 3D experiments
2023
Andrea Piccolo1, Marcel Thielmann1, Arne Spang1

Slab detachment is a process that has been invoked to explain rapid uplift, deep seismicity, and magmatic activity in several active orogens (e.g., Alps, Himalaya). However, it is not yet…

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Effects of water level rise on the dynamic behavior of land uplift in abandoned mines, Germany
2022
Mir Ahmad Mohammadi1

The terrain elevation changes resulting from the rising water level caused by stopping dewatering or flooding in abandoned mines area can damage surface construction or make the surface area useless….

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Efficiency and depth of H2O recycling from a modelling perspective
2023
Sara Vulpius1, Falco Menne1, Lena Noack1, Oliver Henke-Seemann1, Enrique Sanchis Melchor1

The recycling of volatiles like H2O from the surface into the interior is critical as it influences the physical and chemical properties of the mantle. One of the essential effects…

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Efficiency of CO2 storage in saline aquifers using foam co-injection
2020
Xiaocong Lyu (1), Denis Voskov (1,2) & William Rossen (1)

In this study, we investigate CO2-foam injection as a promising technology to increase the security of CO2 sequestration process. To evaluate the performance of CO2-foams in saline aquifers, the Delft…

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EGU Geoscience Education Field Officer (GEFO) initiative in Germany – results of the first year of activity
2023
Sylke Hlawatsch1

Geoscientists know that their scientific understanding of the Earth as a system is important for the sustainable development of planet Earth. In Germany they expressed their concern about the state…

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EGU Geosciences Education Field Officers: the assessment of the programme
2023
Gina P. Correia1, Sylke Hlawatsch2, Anna Anglisano Roca3, Hélder Pereira4, Jean-Luc Berenguer Berenguer5

With the main goal of supporting geosciences education in Europe and beyond, the European Geosciences Union (EGU) Education Committee (EC) launched and support the Geoscience Education Field Officers (GEFO) programme….

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Eight ICDP boreholes and three tunnels through 3.7 km of Paleoarchean shallow-water strata probe the setting of early life
2022
Christoph Heubeck1, Nic Beukes2, BASE onsite team3

The up to 3.7 km-thick Moodies Group (~3.22 Ga) of the Barberton Greenstone Belt, South Africa and Eswatini, comprises some of the oldest well-preserved sedimentary strata on Earth, deposited within…

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Element partitioning and selective mobilisation at the magmatic-hydrothermal transition in shallow igneous systems
2022
Anne Kaufmann1, Thomas Pettke1

Fluid-melt partition coefficients (KD) quantify the distribution of elements at the magmatic-hydrothermal transition and describe the potential for selective mobilisation and transport of elements from a solidifying magma into the…

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Element partitioning during hydrothermal alteration at ultramafic-hosted mineralized systems: insights from the fossil Marmorera-Cotschen hydrothermal system (Platta nappe, SE Switzerland)
2021
Rémi Coltat1, Philippe Boulvais2, Thomas Riegler3, Ewan Pelleter4, Yannick Branquet2,5

Ultramafic-hosted mineralized systems commonly form massive sulphides at the seafloor which are enriched in base (Cu, Zn, Ni), critical (Co) and precious (Au, Ag) metals. In present-day settings, the limited…

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Enabling virtual teaching with Unreal Engine 5 (3D/XR): The 30 Geotope³ virtual museum
2023
Pascal Michael Woiton1, Edouard Grigowski1

Fieldwork and outcrops are an essential component of geoscience education, providing students with a hands-on learning experience that enhances their understanding of geological processes. This is reflected by the importance…

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Energy analysis of microseismicity induced by fluid-injection in the Soultz-sous-Forˆets geothermal reservoir
2021
Kamel Drif1,2, Olivier Lengliné1, Jannes Kinscher2, Jean Schmittbuhl1

Between 1993 and 2005, the Soultz-sous-Forˆets reservoir was stimulated through 4 different wells crossing the reservoir at two different levels R3 (about 3km deep) and R5 (about 5km deep). The…

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Energy storage in salt caverns: Technical, regulatory and societal challenges from an energy and mining perspective
2020
Serge van Gessel (1), Isis van Wetten (1), Gregor Schneider (2) & Ingrid Kroon (1)

Rock salt is an abundant mineral typically applied in chemical industry, food industry and road de-icing. Besides extraction from seawater and surface occurrences, subsurface mining is common practice in several…

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Enhanced weathering of mafic rocks in tropical Colombia
2023
Camilo Montes1, Aymer Maturana1, Maritza Duque1, Jaime Escobar1, Juan Andres Gil1, Juan David Atencio1

The tropics have the potential to capture large amounts of CO2 through enhanced weathering of mafic rocks. This negative emissions technology can be articulated with the needs of the agricultural…

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Enhancing the contribution of closed systems to geothermal energy generation by increasing the ratio of generated power to the total length of wellbores
2021
Morteza Esmaeilpour, Maziar Gholami Korzani, Thomas Kohl

Geothermal energy extraction through closed systems is a secure approach responding to the global heating demand without contaminating subsurface water and causing seismic events. However, the generated power of conventional…

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Environmental change at the Mid-Eocene Climate Optimum in Central Asia and potential relations with Eurasian paleoecological dispersals
2023
Guillaume Dupont-Nivet1, Silke Voigt2, Alina Seufert2, Erwin Appel3, Saida Niglatova4, Nariman Jamikeshev5

limatic optima and hyperthermals of the Paleogene period (66-34 Ma) open windows into the past to explore the Earth System under extreme conditions, beyond several tipping points. During this period…

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Episodic mantle overturn in a non-plate tectonic mantle
2021
Anders Lillevang Vesterholt, Thorsten J. Nagel

Using ultra-high-resolution, 2D-thermomechanical modeling, we explore the evolution of the mantle of a terrestrial planet with a stagnant lid like Venus or the early Earth. Without plate tectonics, the mantle…

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Erosion rate response to mining and deforestation, Elba Island
2023
Nathalia Cerón Espejo1, Anne Bernhardt1, Dirk Scherler2, Alexander Rohrmann1, Wiebke Bebermeier3, Fabian Becker3, Hella Wittmann4, Tibor Dunai5

Throughout history, humans have modified the landscape by farming, extracting natural resources, and deforestation. However, it is not fully understood to what extent such activities have changed vegetation structures and…

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Estimating the upper limit of the Proterozoic petrographic carbon (PC) flux
2022
Sami Nabhan1, Don Canfield1

Atmospheric oxygen levels in the Proterozoic are highly debated with estimates reaching from >0.1 – 24 % PAL. A new approach to model Proterozoic atmospheric oxygen levels, based on concentrations…

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Estimation of shallow groundwater temperatures in Saxony-Anhalt, Germany
2023
Maximilian Noethen1, Hannes Hemmerle1, Laura Meyer1, Peter Bayer1

Groundwater temperatures (GWTs) vary based on the local geothermal heat flux, the energy budget at the surface, and land cover. With subsurface temperature data being scarce, standard techniques for the…

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Europe’s marine minerals: EMODnet geology and Geological Service for Europe (GSEU)
2023
Xavier Monteys1, Charise McKeon1, Teresa Medialdea2, Francisco Javier González2, Egidio Marino2, Luis Somoza2, Ana Lobato2

The European Marine Observation and Data Network (EMODnet) is a long-term marine data initiative funded by the European Maritime, Fisheries and Aquaculture Fund (EMFAF) and supported by the EU’s integrated…

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Europe’s resilience on raw materials – how did GeoERA contribute
2021
Antje Wittenberg1, Daniel P. S. de Oliveira2, Lisbeth Flindt Jørgensen3, Tom Heldal4, F. Javier González Sanz5

Europe’s Green Transition is a declared key political goal in the European Union. The technology needed to achieve carbon neutrality by 2050 relies heavily on metals and minerals. Responsible sourcing…

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European Minerals Inventory as part of the Mineral Intelligence for Europe
2020
Špela Kumelj(1), Jasna Šinigoj (1), Duška Rokavec (1), Andrej Vihtelič (1), Lisbeth Flindt Jørgensen (2) & David Whitehead (2)

The geographical coverage of the Minerals Inventory is being extended with data from the West Balkan countries as mineral data from this region represented a gap in the existing mineral…

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European Raw Materials
2021
Wittenberg, Antje; Sievers, Henrike

Raw Materials are crucial components of a resilient and sustainable economy and society. A sustainable supply of primary raw materials needs accessible mineral deposits and efficiently productive mines. Competing land-use…

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Evaluation of geogenic and anthropogenic impacts on spatio-temporal variation in the quality of the drinking water sources under the impact of land-use and land-cover: A case study of the Erbil Central Sub-Basin, Iraq
2023
Jawhar Mohammed-Shukur TAWFEEQ1, Erkan DİŞLİa1, Masoud Hussein HAMED2

The study area, Erbil Central Sub-Basin, is located within the foothill zone in the stable shelf tectonic unit of Iraq (northern Iraq) on the Arabian plate. Recently, groundwater demand has…

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Evidence for a non-classical dissolution-reprecipitation reaction path in natural high pressure-low temperature rocks
2022
Matthias Konrad-Schmolke1, Ralf Halama2, Richard Wirth3, Aurélien Thomen4, Nicolai Klitscher3, Luiz Morales5, Franziska Wilke3

Dissolution and precipitation of minerals in the presence of a hydrous fluid is commonly assumed to occur predominantly by hydrolysis of the outermost monolayers of the reacting crystal and subsequent…

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Evidence for time-variable thickness of the Phanerozoic continental lithosphere in Central Europe
2021
Amr El-Sharkawy1,2, Thomas Meier1, Sergei Lebedev3, Carlos Clemente-Gomez4, Javier Fullea4, Thor Hansteen5

The Phanerozoic lithosphere in Central Europe was formed due to the Caledonian and Variscan Orogenies. It then probably underwent modification and thinning associated with widespread and intense Permian volcanism. Since…

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Evolution and Modeling of the Carbonate-Clastic Permian system in the Jeffara Basin, Central Tunisia
2021
Christos Kougioulis1, Pierre-Olivier Bruna1, Allard Willem Martinius1, Ahmed Nasri2, Ghofrane Laouini2,3, Giovanni Bertotti1

Permian deposits are found in outcrops and in the subsurface of Central Tunisia. Their sedimentary and stratigraphic characteristics and origin are not fully understood and represents the main focus of…

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Evolution from subduction initiation to mature island arc volcanism in the Upper Eocene to Middle Miocene Vitiaz Arc, SW Pacific: Evidence from Malekula Island (Vanuatu)
2021
Kathrin P Schneider1, Karsten M Haase1, Bernard Pelletier2

The oldest volcanic rocks exposed on Malekula Island, now belonging to the New Hebrides Island Arc, formed in the Upper Eocene to Middle Miocene Vitiaz Island Arc, Southwest Pacific. They…

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Evolution of fluid flow and carbonate recrystallization rates in deep-sea sediments of the Equatorial Pacific
2022
Andreas Wittke1, Nikolaus Gussone2, Dominik Derigs3, Barbara M.A. Teichert4

Fluid flow and carbonate recrystallization rates were determined for deep-sea sediments from the Equatorial Eastern Pacific (IODP Exp. 320/321) using δ44/40Ca values of pore water and corresponding sediments. The drill…

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Exhumation and erosion rates in the flat-topped Nock Mountains in the Eastern Alps constrained by low-temperature and cosmogenic 10Be data
2021
Andreas Wölfler1, Andrea Hampel1, Christoph Glotzbach2, István Dunkl3

Constraining rates of landscape evolution is a necessary pre-requisite for reconstructing the spatiotemporal evolution of the Earth´s surface. In our study, we present new zircon and apatite fission track and…

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Exhumation pulses in the Southern Patagonian Andes (Torres del Paine, 51°S)
2020
Nevena Andrić-Tomasevic, Sarah Falkowski, Alireza Aghakhani & Todd A. Ehlers

The Cenozoic exhumational evolution of the Southern Patagonian Andes and its potential tectonic and climatic controls remain poorly constrained. Here, we integrate 21 new and 73 published bedrock thermochronological ages…

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Exhumation related crystallographic preferred orientations in Cretaceous high pressure rocks of the Eastern Alps
2023
Ruth Keppler1, Niko Froitzheim1

The Saualpe-Koralpe high pressure (HP) complex as well as the HP units of the Pohorje mountains formed during the Cretaceous orogenic cycle in the Eastern Alps. Within these units eclogite…

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ExoMDN: Rapid characterization of exoplanet interiors with Mixture Density Networks
2023
Philipp Baumeister1, Nicola Tosi2

Characterizing the interior structure of exoplanets is an essential part in understanding the diversity of observed exoplanets, their formation processes and their evolution. As the interior of an exoplanet is…

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Exothermic adsorption of oxo-anions by goethite
2023
Michael Kersten1

Column and field tests related to ATES found significantly elevated Mo, V, and other oxo-anions that could not be explained by reductive dissolution of Fe oxyhydroxides. A common hypothesis levied…

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Expanding the U-series disequilibrium dating to minerals beyond Zircon by LA-ICP-MS
2022
Marcel Guillong1, Jörn-Frederik Wotzlaw1, Franziska Keller1, Francesca Forni2, Razvan-Gabriel Popa1, Olivier Bachmann1

In situ U-Th disequilibrium dating is applicable to Uranium bearing minerals crystallizing the past 300 ka and has long been the domain of ion microprobes. We introduced analytical protocols employing…

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Experimental alteration of ferroan brucite at temperature below 150°C: new thermodynamic and kinetic constaints on H2 production during ultramafic rock alteration at low temperature
2023
William Carlin1, Benjamin Malvoisin2, Fabrice Brunet2, Bruno Lanson2, Nathaniel Findling2, Martine Lanson2, Tiphaine Fargetton3, Laurent Jeannin3, Olivier Lhote4

The alteration of ferroan brucite, a common by-product of serpentinization, has been proposed as a H2 source at low temperature. Here, synthetic ferroan brucite with Fe/(Fe+Mg) = 0.2 was reacted…

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Experimental and isotopic constraints on the formation of Archean continental crust
2023
Liam Hoare1, Christopher Beyer1, J. Elis Hoffmann2, Raúl O.C. Fonseca2

Remnants of Earth’s juvenile continental crust are preserved in the form of Archean Tonalite-Trondhjemite-Granodiorites (TTGs). However, much controversy surrounds the composition of TTG protoliths and whether the geodynamic setting involved…

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Experimental and isotopic insights into mineral-fluid interactions at Earth’s surface in natural and engineered systems
2022
Anna L. Harrison1, Vasileios Mavromatis1, Jacques Schott1, Cameron Wood2, Avni Patel3, Eric Oelkers1, Katharine Maher4, Siobhan A. Wilson3, Maija Raudsepp3, Jon Golla5

Mineral-fluid interactions underpin element cycles, mobility of hazardous and valuable metals, and removal of CO2 from the atmosphere. The fractionation of isotopes provides insights into the processes controlling mineral-fluid reactions…

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Experimental and numerical investigations to calculate long-term recharge in a water stressed region and to optimize nature-based MAR solutions
2023
Lucia Magnano1, Arif Chowdhury2, Ahmed Abdelrahman1, Ronjon Heim3, Irina Engelhardt1

Climate projections indicate that extreme weather events have increased in frequency and intensity in the past and will affect sensitive Germany in the near future. Our study site, the catchment…

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Experimental constraints on reactive flow in the lunar mantle and high-Ti magma petrogenesis
2022
Martijn Klaver1, Tim Elliott2, Stephan Klemme3

Basaltic lunar mare volcanism has erupted a variety of melt compositions that far exceeds that of terrestrial basalts. Most notably, TiO2 contents of lunar basalts vary by almost two orders…

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Experimental determination of boron isotope fractionation between silicate melts and hydrous fluids, with application to understanding magmatic-hydrothermal ore genesis
2023
Jakob Heinrich Rauscher1, Bernd Wunder2, Max Wilke3, Robert Trumbull2, Sandro Jahn4, Melanie Jutta Sieber3, Julie Michaud5, Florian Pohl5, Maria Rosa Scicchitano2, Michael Fechtelkord6, Oona Appelt2

The magmatic-hydrothermal transition is an important but poorly-understood process in the formation of Sn-W, Nb-Ta and Li deposits associated with evolved granites and pegmatites. Theory predicts that boron isotopes will…

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Experimental investigation of gas diffusion in claystones: The potential of gas uptake measurements as a means to assess diffusivity in water saturated porous media
2023
Saeed Khajooie1, Garri Gaus1

This study investigates sealing properties of Jurassic claystones, specifically Lias and Dogger mudstones of the Lower Saxony Basin, in the context of the disposal of high-level radioactive waste. Within the…

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Experimental investigation of hydrogen storage and transport properties in reservoir rocks under the influence of abiotic chemical reactions, microbial metabolism, and „in-situ“ pressures.
2021
Nicolai Thüns1, Garri Gaus2, Ralf Littke2, Helge Stanjek1

Temporary underground storage of molecular hydrogen (H2) in depleted oil and gas reservoirs has recently attracted increasing research interest as it can support chemical industry demands and peak-shaving in the…

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Experimental investigation of tuite stability in peridotite bulk and its role in the Earth’s phosphorus cycle
2022
Vazhakuttiyakam Jaseem1, Tristan Pausch1, Anthony C Withers2, Bastian Joachim-Mrosko1, Jürgen Konzett1

Ca-phosphates play a vital role in the global phosphorus, halogen and incompatible trace element cycle. During subduction, apatite, which is the most abundant terrestrial Ca-phosphate, breaks down to form tuite…

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Experimental investigation of Zn isotope fractionation during sulfur-bearing magma degassing
2022
Chun Yang1, Paul Pangritz2, Christian Renggli2, Christoph Burkhardt3, Stephan Klemme2

Moderately volatile metal elements like Zn in may be efficiently transported into the gas phase during magma ascending, and during vaporization may fractionate elements and their isotopes between gas and…

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Experimental large scale salt cavern methanation simulation
2023
Marcel Schulz1, Birgit Müller1, Frank Schilling1

Despite the high salinity, biological processes could be used in salt caverns for methanation if suitable conditions are created. With suitable backfill materials, growth areas for the formation of biofilms…

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Experimental quantification of the degassing of chalcophile and siderophile elements from metal and sulfide melts
2022
Edgar S. Steenstra1, Christian Renggli1, Jasper Berndt1, Stephan Klemme1

The chemical composition of magmatic iron meteorites provides fundamental insights into planetary accretion processes. They are distinguished based on their trace element compositions and could represent the cores of more…

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Experimental results of a high-temperature aquifer thermal energy storage test site – storage efficiency and thermal impact on the environment
2023
Johannes Nordbeck1, Klas Lüders1, Götz Hornbruch1, Sebastian Bauer1

High-temperature aquifer thermal energy storage (HT-ATES) in the geological subsurface can help bridge the temporal mismatch between production and demand of energy from renewable sources. Despite great importance for energy…

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Experimental Simulation of Liquid Immiscibility in a Primitive Silicate-Carbonatite System
2022
Antonia Simon1, Roman Botcharnikov2, François Holtz3, Daria Voropaeva4, Marion Tichomirowa4, Stephan Buhre2

Despite being the most important source of rare earth elements (REE), the formation of carbonatites as well as the enrichment processes of rare metals in these rocks remain elusive. While…

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Experimental simulations of hydrogen migration through potential storage rocks
2021
Bettina Strauch, Peter Pilz, Johannes Hierold, Martin Zimmer

The save and effective storage of hydrogen in geological formations is an important part towards the implementation of renewable energy use. Due to fluctuating power supply from wind or solar…

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Experimental sulfidation of nano-magnetite at hydrothermal conditions – implications for the reconstruction of microbial life in ancient sulfide deposits
2023
Eric A. Runge1, Muammar Mansor2, Andreas Kappler3, Jan-Peter Duda1

Nano-magnetite is a potential archive for biosignatures of iron-cycling microorganisms in hydrothermal systems, which are widely considered to be among the most ancient microbial habitats on Earth. Sulfidic diagenesis driven…

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Experimentally determined NH4+ – K+ exchange coefficient between phengite and fluids at 700°C/4.0GPa
2022
Nada Abdel-Hak1, Axel Kitte2, Jens Kallmeyer2, Monika Koch-Müller1, Bernd Wunder3

Phengite is the main nitrogen (N) carrier in high-P/T metamorphosed rocks in subduction zones (e.g. Halama et al., 2017; Abdel-Hak et al., 2020). N is incorporated as ammonium (NH4+) substituting…

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Experimentally Induced Thermal Fatigue on Lunar and Eucrite Meteorites – Influence of the Mineralogy on Rock Breakdown
2022
Markus Patzek1, Ottaviano Rüsch1

Understanding regolith formation and evolution on airless planetary surfaces at the spatial scale from meters to microns is crucial. Diurnal temperature variations on airless planetary surfaces is a common feature…

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Exploration and extraction of key battery commodities for e-mobility
2021
Gorka, Torsten (1); Peters, Stephan (1); Barth, Andreas (2)

The growing need for energy storage for e-mobility and other battery-intense applications has created a large interest in the key battery commodity Lithium (Li) as well as other critical raw…

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Exploration of the geologic and hydrogeologic conditions for a medium deep borehole high-temperature thermal energy storage system at TU Darmstadt, Germany
2021
Lukas Seib, Bastian Welsch, Matthis Frey, Claire Bossennec, Kristian Bär, Ingo Sass

Solutions for seasonal energy storage systems are an essential component for the reliable use of fluctuating renewable energy sources and to bridge the gap between abundant heat availability from renewable…

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Exploring flooded mines with UNEXUP
2020
Márcio Tameirão Pinto & Luís Lopes

The UNEXUP project (2020-2022), funded by EIT RawMaterials, is a continuation of the Horizon 2020 UNEXMIN project (2016-2019). In UNEXMIN a robotic platform to conduct geoscientific surveys in underground flooded…

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Exploring for CCS
2023
Gesa Luise Netzeband1, Susanne Kuchling1

CCS has been identified as a key element for limiting global warming. The adoption of the EU Green Deal and other European regulation have made carbon capture and storage technologies…

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Exploring meteorite collections via non-destructive micro X‑ray fluorescence analysis
2022
Lutz Hecht1, Ansgar Greshake2, Felix Kaufmann2, Christopher Hamann2, Dina Schultze2, Roald Tagle3

Meteorites offer a unique view on the formation and evolution of our solar system. Thousands of such samples exist in meteorite collections all over the world; however, this resource is…

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Exploring the geothermal potential of North Rhine-Westphalia – insights into the intermediate and deeper subsurface
2022
Sarah Esteban Lopez1, Kim Roya Nokar1, Martin Sattelberger1, Vladimir Shipilin1, Burcu Tasdemir1, Immanuel Weber1

The rising demand for heating applications in North Rhine-Westphalia (NRW) based on regional, climate and environmentally friendly energy sources has prompted the federal state government to further evaluate the geothermal…

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Exploring the Plio/Pleistocene stratigraphy of a core from Riedstadt/Hesse (Upper Rhine Graben)
2023
Christian Zeeden1, Stephanie Scheidt2, Stefanie Kaboth-Bahr3, Christian Hoselmann4

The last of a total of three main subsidence episodes of the northern Upper Rhine Graben took place during the Pliocene to Quaternary and allowed the accumulation of thick sedimentary…

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Exploring the preservation of greigite in hydrocarbon reservoirs using thermodynamic modelling
2021
Jack Turney, Adrian Muxworthy, Dominik Weiss, Alastair Fraser

Previously, thermodynamic modelling has been used to predict the magnetic phases favoured under varying geochemical conditions at hydrocarbon seepage zones. Although greigite (Fe3S4) has been identified by magnetic experiments in…

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Expressions of Early Silurian climate changes in the stratigraphic record of Baltica and South China
2023
Oliver Lehnert1, Guido Meinhold2, Michael Joachimski3, Guanzhou Yan4, Mikael Calner5, Peep Männik6, Jiri Frýda7, Fangyi Gong4, Rongchang Wu4

The Silurian record in the Siljan crater, Europe’s largest impact structure, in the succession at Baizitian (Sichuan Province) in South China, in other Swedish and Estonian sections, together with records…

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Extending the age model for Lake Bosumtwi (Ghana) for climate- and environmental reconstructions in West Africa during the last million years
2023
Mathias Vinnepand1, Christian Zeeden1, Anders Noren2, Stefanie Kaboth-Bahr3, William Gosling4, Jochem Kück5, Thomas Wonigk1

Lake Bosumtwi, formed after a meteorite impact at ~1.07 Ma, contains a sedimentary archive that yields an excellent high-resolution record of climate- and environmental change in Sub-Saharan West Africa. The…

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Externally- vs. internally-derived H2O as control on reaction progress during high-pressure metamorphism
2022
Simon Schorn1

The progress of metamorphic reactions at high-pressure is commonly limited by kinetics. Relatively low temperatures, absence of deformation, short timescales and particularly the paucity of fluid may hamper transformation, thereby…

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Extracting the source characteristics of the April 2022 Guanyuan landslide event from seismic signals recorded in the near-field
2023
Rebeca Ursu1, Hui Tang2, Jens M. Turowski2, Ci-Jian Yang2, Jui-Ming Chang3

The seismic signature of landslides preserves information of utmost importance in reconstructing the impact forces induced by landslides and, subsequently, the trajectory of motion and the dynamic properties of the…

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Extraction of Cr during mantle melting: Experimental constraints on the role of peridotite composition and the effect of water
2022
Myriam Ruttmann1, Roman Botcharnikov1, Annalena Stroh1, Evangelos Moulas1, Stephan Buhre1

Chromium (Cr) is considered to be one of the most economically important critical raw materials. The most economically significant mineral for Cr exploitation is Chromite which can be found in…

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Extreme As partitioning into pyrite during hydrothermal siderite replacement in As poor fluids
2022
Frederik Jonas Dunkel1, Martin Kutzschbach1, Christof Kusebauch2, Ferry Schiperski1, Frederik Börner3, Manuel Keith3

Pyrite is among the most abundant sulphide minerals in the Earth’s crust and an important sink for As and valuable elements like Au and Te (1, 2). Hence, arsenian pyrite…

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Fabric development in felsic granulites during multistage exhumation of the Saxonian Granulite Massive
2023
Till Berndt1, Rüdiger Kilian1, Michael Stipp1

Fabrics in the granulites of the Saxonian Granulite Massive (SGM) are interpreted to result from deformation related to early exhumation at deep crustal conditions, followed by subsequent shearing of the…

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Facies analysis and petrography of Permian sandstones – key for stratigraphy and depositional environment of a new tetrapod track site (Southern Permian Basin, Germany)
2021
Sebastian Germann1, Jörg W. Schneider1,2, Birgit Gaitzsch1, Michael Buchwitz3

The Upper Rotliegend II sandstones of the Mammendorf Quarry in the Flechtingen High near Magdeburg in northern Germany yield an assemblage of continental trace fossils (reptilian and therapsid tracks, scratch…

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Factors influencing the long-term interseismic behavior of the Main Marmara Fault, NW Turkey: a data-driven modelling approach
2023
Naiara Fernandez1, Mauro Cacace1, Magdalena Scheck-Wenderoth2, Oliver Heidbach1

In this contribution, we discuss our latest results from the project “Deformation Mechanisms along the Main Marmara Fault (DEMMAF)”, funded by the ICDP priority program of the German Science Foundation….

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FAIR dissemination of laboratory data in the solid Earth sciences: an EPOS community portal for cross-disciplinary metadata
2022
Otto A. Lange1, Laurens Samshuijzen1

The Thematic Core Service Multi-scale Laboratories (TCS MSL) is a community within the European Plate Observing System (EPOS) that includes a wide range of world-class laboratory infrastructures and that provides…

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Fe3+ in garnet and the V/Cr redox proxy: Two methods, one result. Oxygen fugacity of Paleoarchean ky/cor eclogites from the Kaapvaal craton – subducted equivalents of former troctolites
2022
Heidi Eva Hoefer1, Qiao Shu2, Gerhard Peter Brey1, Catharina Heckel1, Prokopiy Vasilyev3

The Earth’s mantle was at metal saturation shortly after accretion (ΔFMQ ~ -4.5; Frost and McCammon, 2004). This supposedly changed very rapidly to ΔFMQ ~ 0 (= today’s oxidation state…

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Feasibility Study of Monitoring Delft Geothermal Project Using Land Controlled-Source Electromagnetic Method
2021
Mahmoud Eltayieb, Dieter Werthmüller, Guy Drijkoningen, Evert Slob

Delft geothermal project (DAPwell) is a planned geothermal well doublet, where relatively cold water is going to be injected through one well into a low enthalpy geothermal reservoir to produce…

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Feedbacks in silicate glass alteration studied by in operando fluid-cell Raman spectroscopy
2022
Gerrit Müller1, Moritz Bernd Karl Fritzsche2, Lars Dohmen3, Thorsten Geisler2

The alteration of silicate glasses (and minerals) is involved in most biogeochemical cycles and poses challenges in several technical applications. The mechanism(s), kinetics and rate-determining factors have been extensively studied…

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Felsic veins in gabbros drilled by IODP at Atlantis Bank (Southwest Indian Ridge; Expedition 360): Formation, metamorphism and their role for fluid and mass transfer: first results
2020
Artur Engelhardt, Jürgen Koepke & François Holtz

Hole U1473 (32° 42.3622’ S; 057° 16.6880’ E), located on the summit of Atlantis Bank at the ultra-slow spreading Southwest Indian Ridge was drilled to 789.7 m below seafloor (mbsf)…

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Fennoscandian Deep biosphere – similarities, differences and functions
2023
Malin Bomberg1

The continental subsurface contains approximately 12 – 20% of Earth’s biomass. In deep rock environments this biomass dwells in aqueous spaces, fractures and pores of the rock, either attached in…

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FID GEO: library-based services that help establish Open Science practices.
2023
Melanie Lorenz1, Malte Semmler2, Kirsten Elger1

In the context of Open Science, data are just one, albeit important, part of the chain of scientific outputs, ranging from samples, to data, software, and research articles. The Specialized…

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FID GEO: promoting cultural change towards Open Access and FAIR data in the German geoscientific community
2022
Marcel Meistring1, Melanie Lorenz1, Kirsten Elger1, Inke Achterberg2, Malte Semmler2, Norbert Pfurr2

The rise of Open Science practices is impacting the entire scientific publishing culture. The transition to Open Access for text publications goes hand in hand with the growing demand to…

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Finding opportunities in the uncertainties of geomechanical-numerical models
2023
Moritz Ziegler1, Oliver Heidbach2, Karsten Reiter3, Mojtaba Rajabi4

The numerical modelling of the in-situ stress state is commonly performed for reservoir management or subsurface applications such as nuclear waste repositories. Modelling is required due to the sparsity of…

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Finding Quaternary Seismic Slip Along the Eastern Periadriatic Fault System: Dating Fault Gouges by combined means of Electron Spin Resonance and Optically Stimulated Luminescence
2023
Erick Prince1, Sumiko Tsukamoto2, Christoph Grützner1, Marko Vrabec3, Kamil Ustaszewski1

The Periadriatic Fault System (PAF) is among the largest post-collisional structures of the Alps. Recent studies using GPS velocities suggest that Adria-Europe convergence is still being accommodated in the Eastern…

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Finding the geothermal sweet spots of Germany by integrating the subsurface geological heterogeneity with process simulations
2023
Magdalena Scheck-Wenderoth1, Mauro Cacace2, Judith Bott2, Denis Anikiev2

In Germany the heat demand distribution and operational geothermal production show limited spatial overlap and this is related to the geology in the subsurface. Most of the geothermal energy projects…

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Fingerprinting fluid evolution and metal distribution in the Skouries porphyry Au-Cu deposit (NE Greece) by mineral micro-analysis
2022
Alica Höss1, Reiner Klemd1, Manuel Keith1, Panagiotis Voudouris2, Vasilios Melfos3, Lisa Gerlach1, Karsten Haase1, Tim Baker4

The Skouries deposit in NE Greece is a platinum-group element enriched (⌀=149 ppb Pd, ⌀=30 ppb Pt) Au-Cu porphyry system hosted by monzonite-syenite intrusions. The porphyry stockwork consists of quartz-rich…

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First evidence from Lake Melville, Canada: Subglacial lake sediments underneath the Laurentide Ice Sheet?
2021
Sophie Kowalski1,2, Christian Ohlendorf1, Andrea Catalina Gebhardt2, Jens Matthiessen2

The fjord-type Lake Melville is located in Labrador, Eastern Canada, as part of the Hamilton Inlet System. It is mainly characterised by riverine freshwater influx into its western end and…

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First interpretation of mantle structure in the Alps-Apennines-Carpathian-Pannonian region from teleseismic Vp studies
2020
Marcel Paffrath (1), Mark R. Handy (2), Stefan M. Schmid (3) & Wolfgang Friederich (1)

A pattern of teleseismic Vp anomalies in the greater Alpine area reflect asymmetrical mantle structure in the Alps as well as pronounced orogen-parallel variations. The foreland of the Western and…

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First Lu-Hf ages of garnet-bearing lithologies from the Saxonian Granulite Massif
2022
Madeline Richter1, Sebastian Weber2, Niko Froitzheim3, Kathrin Fassmer4, Carsten Münker5, Kamil Ustaszewski1

The Saxonian Granulite Massif is an antiformal gneiss dome with granulite facies rocks in the core, enwrapped by uppermost amphibolite to lower greenschist facies metasediments. Their subduction and exhumation histories…

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First results of quartz inclusion elastic barometry and insitu U/Pb dating in garnet for Koralpe-Saualpe-Pohorje (KSP) Complex
2023
Iris Wannhoff1, Jan Pleuger1, Xin Zhong1, Timm John1, Leo J. Millonig2, Axel Gerdes2

The KSP Complex in the Eastern Alps is a lithologically heterogenous (U)HP nappe with eclogite lenses embedded in gneisses and metasediments. The formation history of the KSP Complex is still…

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First results of the full scale HT-ATES project in a greenhouse area Middenmeer in the Netherlands
2021
Bas Godschalk, Peter Oerlemans

Agriport A7 is a large-scale greenhouse area in Middenmeer in the Netherlands. The local energy company ECW provides geothermal heat (92ºC, from 2 km depth) to the greenhouses through a…

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FloodRisk: Earthquakes, uplift, and long-term liabilities – risk minimisation during mine flooding
2021
Dennis Quandt1, Michael Alber2, Felix Allgaier1, Benjamin Busch1, Even Markus3, Kasper Fischer4, Wolfgang Friederich4, Jonas Greve5, Mathias Knaak5, Birgit Müller6, Thomas Niederhuber6, Detlev Rettenmaier7, Martina Rische4, Thomas Röckel8, Frank Schilling6, Daniel Schröder9, Olaf Ukelis7, Malte Westerhaus3, Roman Zorn7, Christoph Hilgers1

Due to the cessation of coal mining in Germany, mine water management in the former coal districts is subject to change and of environmental and economic significance. Since there is…

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FloodRisk: Observations of rising mine water level and micro seismicity in the eastern Ruhr area (Germany)
2021
Martina Rische, Kasper David Fischer, Wolfgang Friederich

FloodRisk is an interdisciplinary project focusing on the effects of mine water level rise in abandoned coal mine regions in Germany. Such effects are heterogeneous ground uplift, stress changes due…

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Fluid and chemical constraints on sphalerite precipitation in the Boundary Zone Zn-Pb prospect, Yukon, Canada
2023
Haruna M. Grema1, Joseph M. Magnall2, Sarah A. Gleeson1, Jack E. Milton3, Marta Sośnicka2, Vitor R. Barrote4, Hans-Martin Schulz2

Sphalerite (ZnS) is the main ore mineral in clastic-dominant (CD-type) massive sulfide deposits. However, the precise physicochemical conditions of ore formation are often poorly constrained. This study uses sphalerite mineral…

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Fluid evolution and Re enrichment in the Maronia porphyry system, NE Greece: Insights from pyrite, molybdenite and quartz micro-analysis
2022
Jan J. Falkenberg1, Manuel Keith1, Karsten M. Haase1, Panagiotis Voudouris2, Vasilios Melfos3, Max Hohl4, Christoph Beier5, Martin Kutzschbach6, Julia Wenske1, Reiner Klemd1

The monzonitic-granitic intrusion of Maronia in NE Greece hosts an anomalously Re-rich Cu-Mo ± Au porphyry system. The mineralization is dominated by pyrite, molybdenite, chalcopyrite, native Au, and rheniite (ReS2)…

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Fluid Evolution in the Iivaara Alkaline Complex (Finland): a Fluid Inclusion Study
2023
Fahmi Hakim1, Tobias Fusswinkel1, Sven Sindern1

Alkaline igneous rocks are known to host a variety of rare metal deposits, including HFSEs and REEs. The Iivaara alkaline complex (Finland) and the surrounding fenite aureole show Ti-dominated enrichment…

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Fluid flow characteristics recorded in continental eclogites of the Münchberg Massif
2022
Johannes E. Pohlner1, Afifé El Korh2, Reiner Klemd3, Thomas Pettke4, Bernard Grobéty2

Eclogite-facies metamorphic veins provide records of fluid flow dynamics during high-pressure metamorphism. Here, we evaluate the inventory of quartz-rich metamorphic veins and segregations in Variscan eclogites from the Münchberg Massif…

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Fluid inclusion triple halogen (Cl-Br-I) systematics as tracers of fluid provenance in metamorphic and magmatic systems
2022
Tobias Fusswinkel1, Paula Niinikoski-Fusswinkel1, Thomas Wagner1

Heavy halogens are exceptional tracers of fluid provenance due to their largely conservative behaviour during most fluid-rock interaction processes. In particular, Br/Cl ratios have long since been established as a…

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Fluid metasomatism in the cold nose of the Mariana subduction zone
2021
Elmar Albers1, Christian T. Hansen1, John Shervais2, Yuji Ichiyama3

Fluid-mediated mass transfer in subduction zones is crucial for chemical cycling on Earth. Particularly little is, however, known about such processes at shallow subduction levels. We used thermodynamic models to…

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Fluid Release from a Dehydrating Serpentinite by Reactive Porosity Waves
2023
K. Huber1, L. Khakimova2, J. C. Vrijmoed1, Y. Y. Podladchikov2, T. John1

Dehydration of oceanic lithosphere during subduction is a key process in the Earth’s deep volatile cycle. Field observations and studies of obducted meta-serpentinites that underwent dehydration at depth often show…

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Force-balance changes at the subduction-to-collision transition and implications for mountain building
2022
Armin Dielforder1, Andrea Hampel1

The elevation of mountain belts increases at the subduction-to-collision transition in response to crustal thickening and processes like slab breakoff, but the main parameters controlling how much mountain height increases…

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Force-balance changes at the subduction-to-collision transition and implications for mountain building
2021
Armin Dielforder, Andrea Hampel

The elevation of mountain belts increases at the subduction-to-collision transition in response to crustal thickening and processes like slab breakoff, but the main parameters controlling how much mountain height increases…

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Formation and compositional variation in igneous garnets from the Tezhsar Alkaline Complex (Lesser Caucasus, Armenia)
2023
Ralf Halama1, Krzysztof Sokół2, Khachatur Meliksetian3, Ivan P. Savov4, David Chew5

Garnet in alkaline igneous rocks is of interest due to its compositional and textural variability that provides insights into magmatic and hydrothermal processes. This study investigates textures and mineral chemistry…

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Formation and deformation of Triassic skarn (Uppermost Unit, Crete/Greece)
2022
Gernold Zulauf1, Axel Gerdes2, Jochen Günther Krahl3, Jolien Linckens1, Horst Marschall2, Leo Millonig2, Nicolas Neuwirth1, Rainer Petschick1, Jörg Pfänder4, Paris Xypolias5

The nappes of the Uppermost Unit of Crete are counted among the most enigmatic constituents of the Eastern Mediterranean. U-Pb dating of zircons separated from felsic metavolcanics of the deepest…

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Formation and development of polygonal soils in the hyper-arid Atacama Desert and their relevance for Mars.
2023
Christof Sager1, Alessandro Airo1, Felix L. Arens2, Dirk Schulze-Makuch3

Polygonal networks occur on various terrestrial and extraterrestrial surfaces holding valuable information on the pedological and climatological conditions under which they develop. However, in contrast to their periglacial counterparts, the…

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Formation and hydraulic reactivity of an alite-rich material from post-treated basic oxygen furnace slag
2022
Katharina Schraut1, Burkart Adamczyk1, Christian Adam1, Dietmar Stephan2, Sebastian Simon1, Julia von Werder1, Birgit Meng1

Basic oxygen furnace slag (BOFS) is a by-product of steelmaking of which about 10.4 Mt are produced annually in the EU. BOFS is mostly used in road construction, earthwork and…

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Formation of fully carbonated/silicified peridotite (listwaenite) during shallow-crustal extension (Eastern Oman Mountains)
2023
Andreas Scharf1, Frank Mattern1, Ivan Callegari2, Christopher Bailey3, Uwe Ring4

Oman’s listwaenite formed when carbonate-rich fluids reacted with peridotite, reducing the atmosphere’s carbon. Listwaenite provides clues regarding natural global carbon flux and sequestration. Oman contains the world’s largest exposure of…

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Forward stratigraphic modelling of marine petroleum source rocks: the case of the Carson Basin
2021
Samer Bou Daher, Erwan Le Guerroué, Paul Jermannaud, Alcide Thebault

Organic matter rich rocks are the main component of any petroleum system. Marine organic matter deposits form a major part of these rocks and are the source of most oil….

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Fossilization of Precambrian microfossils in the Volyn pegmatite, Ukraine
2022
Gerhard Franz1, Peter Lyckberg2, Vladimir Khomenko3, Vsevelod Chernousenko4, Hans-Martin Schulz5, Nicolaj Mahlstedt5, Richard Wirth5, Johannes Glodny5, Ulrich Gernert6, Jörg Nissen6

The Volyn biota are a distinct and uncommon example of 3D-preservation of ~1.5 Ga old Precambrian fossils, recovered from cavities in pegmatites, which were the habitat for microorganisms in the…

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Fossilization of Triassic marine reptile bones from southwest China – bone diagenesis at elevated temperature
2022
Qiang Li1, Frank Tomaschek2, Fabian Gäb2, P. Martin Sander3

The preservation of fossils over long periods of geological history usually has special characteristics, and the specific conditions for successful fossilization have not been established yet. Triassic bones from SW…

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Four eruption cycles feeding the most voluminous Deccan Eruptions
2022
Patrick A. Hoyer1, Karsten M. Haase1, Marcel Regelous1

Large Igneous Provinces (LIPs) are unusual volcanic events in which massive amounts of melt (~106 km3) erupt in relatively short time periods (< 106 yrs). Many LIPs were emplaced at...

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Fracture network characterization and DFN modelling of the Upper Carboniferous, Ruhr Area, Germany
2021
Felix Allgaier1, Benjamin Busch1, Dennis Quandt1, Thomas Niederhuber2, Birgit Müller2, Christoph Hilgers1

Since coal mining in the Ruhr Area has been ceased, mine water drainage is gradually reduced leading to the rise of formation water and groundwater levels. Rising mine water levels…

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Fracture permeability evolution as a result of long-term geochemical granite alteration in geothermal systems: A combined experiment and modelling approach
2023
Nick Harpers1, Niko Kampman2, Jim Buckman1, Hannah Menke1, Julien Maes1, Andreas Busch1

Geothermal systems in crystalline basement rocks require fractures and faults to allow economic heat production. Sufficient permeability of these flow paths is vital and affects the lifetime of such systems….

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Fractures, fluids and hypogenic karsts: key features in carbonate reservoirs and aquifers
2020
Giovanni Bertotti (1) & Stephan de Hoop (2)

Karsts have been documented in a large number of hydrocarbon reservoirs but their origin has generally been attributed to meteoric processes. In the last years, however, it has been increasingly…

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FRAME and MINDeSEA: Where land meets sea in the research, prediction and prospectivity of metallic mineral critical raw materials
Daniel P. S. de Oliveira (1), F. Javier Gonzalez (2) & Antje Wittenberg (3)

Critical raw materials (CRM) made it back on the EU Commission’s (EC) agenda in 2008. To date three CRM lists have been published (2011, 2014, 2017) and a new list…

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FRAME’s (Forecasting and Assessing Europe’s Strategic Raw Materials Needs) innovative research in mineral raw materials on the eve of the EU’s “Green Deal”
2020
Daniel P. S. de Oliveira (1), Maria João Ferreira (1), Martiya Sadeghi (2), Nikolaos Arvanitidis (2), Guillaume Bertrand (3), Sophie Decrée (4), Håvard Gautneb (5), Eric Gloaguen (3), Tuomo Törmänen (6), Helge Reginiussen (2), Henrike Sievers (7), Lídia Quental (2) & Antje Wittenberg (7)

The EU’s Green Deal policy recognises that Europe needs a new growth strategy that transforms the Union into a modern, resource-efficient and competitive economy where 1- there are no net…

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From baseline to post operation: two year monitoring of thermo-hydraulic induced geochemical effects of a cyclic HT-ATES field test at the “TestUM” test site
2023
Klas Lüders1, Götz Hornbruch1, Ralf Köber1, Johannes Nordbeck1, Andreas Dahmke1

Seasonal ATES systems enable the efficient integration of climate-neutral heat sources into urban heat-supply systems. However, secure and efficient operation presupposes the detection as well as realistic evaluation and prediction…

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From boring needs to cool instruments. – Can codes and standards assist to ensure fair, responsible and legal mining?
2023
Christian Masurenko1

Worldwide 80-100 million people are involved in small-scale mining, another 4 million people in „normal“ mining in order to survive and to gain income for their families. Many strategic minerals,…

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From dry to drenched: variability of H2O contents in rutile from subducted rocks using quantitative in-situ FTIR spectroscopy and mapping
2023
Mona Lueder1, Renée Tamblyn1, Jörg Hermann1

Rutile is potentially very important for the transport of water during subduction metamorphism after the breakdown of hydrous phases, as it is one of the most hydrous nominally anhydrous minerals…

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From Field Application to Publication: An end-to-end Solution for FAIR Geoscience Data
2022
Moritz Theile1, Fabian Kohlmann1, Romain Beucher2, Malcolm McMillan3, Samuel Boone3, Alejandra Bedoya Mejia4, Wayne Noble1

Creation of data starts with sample collection in the field and the assigning of an unique global IGSN sample identifier to samples, these samples are stored along with any subsequent…

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From lithium mineral to chemical: challenges and opportunities
2022
Hans C. Oskierski1, Johannes Chischi1, Thamsanqa Ncube1, Mahmoud Alhadad1, Arif A. Abdullah2, Gamini Senanayake2, Bogdan Z. Dlugogorski3

About half of the global supply of lithium for the battery market is extracted from lithium minerals, such as spodumene. Conventional extraction of lithium from spodumene concentrate proceeds via calcination,…

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From mountain chains to grains: Tracing Alpine erosion using sedimentary provenance analysis
2020
Laura Stutenbecker

MP4-file (136 MB, 55 min, 18 sec. ) Europe, Alps

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From natural observations to an experimental investigation of a potential miscibility gap between Fluorapatite and Fluorbritholite-(Ce)
2022
Melanie Lorenz1, Daniel Harlov2

Evidence for a miscibility gap between fluorapatite (FAp) and fluorbritholite-(Ce) (FBri) has been observed in various natural occurrences, inferred by significant compositional gaps between Ca + P (FAp) and REE…

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From planetary sciences, earth sciences, volcanology to robotics and agriculture: Highlights from the 7th Summer School on Vulcano, Sicily, 2023
2023
Vikram Unnithan1, Frank Sohl2, Christian Riedel3

The annual Summer School on Vulcano, Sicily will take place at the end of June 2023. This poster gives an impression and an overview of the highlights of this successful…

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From portals to hubs, dashboards and storymaps – new technologies for easy access and use of geoscientific data
2021
Lars Behrens

Due to constantly changing requirements and needs for easy access and use of geoscientific data, the technology and methods to provide and present this type of data have recently evolved…

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From Poverty to Prosperity: The Real Energy Transition
2021
Scott W. Tinker

The energy dialog varies by economic status. Western Europe and the United States suggest there is clean and renewable vs dirty and non-renewable energy, and further that clean energy is…

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From rivers to the sea: determination and tracing of TCEs in natural waters
2023
Anna Ebeling1, Ole Klein1, Tristan Zimmermann2, Bettina Rust2, Dominik Wippermann1, Svenja Faust2, Johanna Irrgeher3, Daniel Pröfrock2

TCEs have a wide-spread range of applications and are released into the aquatic environment in various ways. For their sound determination in natural waters not only new analytical methods are…

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From Struggle to Solutions: Understanding the Concerns of People’s Groundwater Usage Habits and Environmental Awareness for Sustainable Water Management in Ca Mau Province
2023
Van Cam Pham1, Jonas Bauer1, Felix Dörr1, Hoan Viet Tran1, Stefan Norra2

The Mekong Delta, including Ca Mau province in the south, faces severe land subsidence, attributed in part to the excessive groundwater extraction. Addressing this issue requires finding alternative water sources…

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From the field to the synchrotron, investigating the early Triassic recovery fauna from Driefontein, South Africa
2023
Kathleen Nina Dollman1, Chandele Montogomery2, Andy Heckert3, Vincent Fernandez1, John Hancox2

The Karoo Supergroup of South Africa contains extremely rich palaeontological record, including evidence of the largest mass extinction in history, the end-Permian extinction (±251.9 Ma). The recovery of terrestrial ecosystems…

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From the museum into the field and back – The digital link between museum objects and their origin
2022
Anne Zacke1, Edouard Grigowski1, Friedeberg Fides1, Hoffmann Gösta2

Museums act on the interface between public and science and hence are in the best position to communicate scientific topics. We implement this by using our objects as translators: with…

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From Understanding to Tailoring: Molecular Simulations unravel Crystal Nucleation and Growth
2022
Dirk Zahn1

From Understanding to Tailoring: Molecular Simulations unravel Crystal Nucleation and Growth Dirk Zahn, Friedrich-Alexander-Universität Erlangen-Nürnberg Modern approaches of molecular dynamics simulations have paved the way to the in-depth understanding of…

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From Volcanoes to Glaciers – The importance of geoscientific research during the site-selection procedure for a high-level nuclear waste repository in Germany
2021
Nils-Peter Nilius, Reinhard Fink, Sönke Reiche

After implementation of the Repository Site Selection Act (StandAG) in 2017, the Federal Company for Radioactive Waste Disposal mbH (BGE mbH), as the German waste-management organization, started the site-selection procedure…

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Frontal fault growth and megafan construction control drainage development in the western Himalaya
2023
Jonas Kordt1, Saptarshi Dey2, Bodo Bookhagen3, Georg Rugel4, Johannes Lachner4, Carlos Vivo-Vilches4, Santunu Kumar Panda5, Naveen Chauhan5, Rasmus Thiede1

The evolution and course of Himalayan rivers when exiting the orogen is controlled by the interplay between tectonics, climate, and associated sediment flux. We investigate these interactions by studying a…

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Full microtremor H/V and phase velocity dispersion curves inversion for S-wave velocity profiles of subaqueous slopes in Lake Lucerne (Switzerland)
2023
Agostiny Marrios Lontsi1, Anastasiia Shynkarenko2, Donat Fäh2

The assessment of seismic hazard and potential earthquake secondary effects such as tsunamis in offshore environments requires, similar to onshore environments, a good knowledge of the subsurface shear-wave velocity (Vs)…

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Fully quantitative trace element mapping of microbial carbonates by LA-ICP-TOF-MS: Background, results and perspectives
2022
Simon V. Hohl1, Yuxiang Jiang2, Sebastian Viehmann1, Xiangtong Huang1

Trace element compositions of carbonate microbialites are valuable proxies to reconstruct shallow water microbial environments through Earth’s history. Most of the published trace element data of microbial carbonates are obtained…

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Fungal bioerosion in fossil dinosaur bones from the Kenton quarries (Late Jurassic, Morrison Formation, Oklahoma): Implications for bone fossilization processes
2022
Pierre Konsbrück1, P. Martin Sander1

After death, bone is exposed to various abiotic and biotic processes. Microbial bioerosion has been reported from recent, archaeological and palaeontological bones and is deemed to have been caused by…

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Future trends of in-situ beta decay dating
2022
Thomas Zack1

The field of mass spectrometry has seen an impressive boost with the commercialization of an older idea of sandwiching a reaction cell between two mass filters, a configuration dubbed MS/MS….

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Gabbro glacier or sheeted sills? How the lower crust of fast-spreading oceanic ridges is accreted
2022
Jürgen Koepke1, Dieter Garbe-Schönberg2, Dominik Mock1, Samuel Müller2

Based on a newly established profile through the fast-spreading oceanic crust of the Oman ophiolite and on cores drilled within the ICDP Oman Drilling Project (OmanDP), we present here the…

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Gallium-Aluminium Ratios as a proxy for Archean seawater: First Insights from the 2.7 Ga old Temagami Banded-Iron Formation, Canada
2022
David M. Ernst1, Dieter Garbe-Schönberg2, Dennis Krämer3, Michael Bau1

Banded iron formations (BIFs) are robust geochemical archives used for the reconstruction of the evolution of the Precambrian hydrosphere-atmosphere system. Here, we present preliminary results on the gallium and aluminium…

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GARNET GROWTH IN A KYANITE-BEARING PERALUMINOUS PEGMATOID FROM THE MOLDANUBIAN ZONE (BOHEMIAN MASSIF, AT)
2022
Victoria Kohn1, Thomas Griffiths1, Taisia Alifirova1, Nina Daneu2, Rainer Abart1, Gerlinde Habler1

An 8 mm sized almandine-spessartine garnet from the Moldanubian Gföhl Unit (Bohemian Massif, AT) displays asymmetric morphology and several zoning types, reflected by varying inclusion microstructures and garnet colour. Different…

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GCI Rohrpassivsammler – An innovation for the integrative monitoring of water quality
2023
Jörg-Helge Hein1

The GCI Rohrpassivsammler (tube-installed passive collector) is an innovative measuring device that uses the accumulation of water contaminants onto collector materials for integrative monitoring of varying concentrations, even for trace…

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Genesis of thick, fine-grained calcite hardgrounds in the upper part of the Early to Late Cretaceous Natih Formation (Wadi Muaydin, Oman Mountains)
2023
Frank Mattern1, Andreas Scharf1, Laura Galluccio2, Henk Droste3, Gianluca Frijia4

We studied two fine-grained calcite hardgrounds (Hg1, Hg2) from the upper part of the Early to Late Cretaceous Natih Formation. Both hardgrounds occur in a 60-m-thick succession of limestones, comprising…

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Genomic analysis and molecular dating of core iron transporters suggests early Cyanobacteria could not take up Fe(II) in the Archean ocean
2021
Tristan Cosme Enzingmüller-Bleyl1, Joanne S. Boden2, Achim J. Herrmann1, Katharine W. Ebel1, Michelle M. Gehringer1

Archean Cyanobacteria oxygenated Earth’s atmosphere during the Great Oxygenation Event (GOE) through the action of oxygenic photosynthesis. The photosynthetic apparatus relies on metalloproteins, many of which contain iron. Cyanobacteria use…

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Geo-bio-interaction in oceanic hydrothermal systems
2021
Schwarzenbach, Esther Martina (1); Bach, Wolfgang (2)

Hydrothermal vents in deep and shallow ocean environments are geochemical conduits that link Earth’s interior with the oceans. These sites of active hydrothermal vents are distributed throughout the global network…

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Geo-Rational – Ethics in/for the Geosciences
2021
Martin Bohle1,2,3

Geosciences co-shape the human niche, that is, the planetary network of twinned natural and cultural landscapes. Bundled by global supply chains, human agents (individuals, groups, institutions, corporations) alter the human…

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Geobiological significance of organic matter preserved in 3.5 Ga hydrothermal barites from the Dresser Formation (Pilbara Craton, Australia)
2022
Lena Weimann1, Manuel Reinhardt1, Jan-Peter Duda2, Helge Mißbach-Karmrodt3, Joachim Reitner1, Volker Thiel1

3.5 billion-year-old bedded barite of the Dresser Formation (Pilbara Craton, Australia) contains abundant primary fluid and solid inclusions. The fluid inclusions contain volatiles like H2S, COS, and CS2, as well…

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Geobiotropy on Early Earth and in the Rocky Universe
2021
Marie-Paule, Renelde Bassez

It is currently proposed that life existed 3.5-3.8 Ga ago. However, the origin of the microorganisms is not yet explained. This presentation shows an anoxic path of formation of ferric…

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Geochemical characterization of upper Berriasian to lower Turonian lithostratigraphic units from the Hanover area
2023
André Bornemann1, Jochen Erbacher2, Martin Blumenberg1

In northern Germany, Lower Cretaceous sediments are predominantly represented by CaCO3-poor mud- and siltstones of up to 2000 m thickness, which become more carbonate-rich during the Albian-Cenomanian transition and even…

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Geochemical control of hydraulic and mechanical reservoir sandstone properties
2021
Maria Wetzel1, Thomas Kempka1,2, Michael Kühn1,2

Geochemical processes such as mineral dissolution and precipitation alter the microstructure of rocks, and thereby affect their hydraulic and mechanical behaviour. Quantifying and considering these property changes in reservoir simulations…

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Geochemical detection of minor hydrocarbon seepage in marine subsurface sediments
2023
Ellen Schnabel1, Jens Kallmeyer1

All hydrocarbon reservoirs leak slightly. At sites with only minor leakage the hydrocarbons (HC) infiltrating the sediment from below are completely metabolized before reaching the sediments surface due to microbial…

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Geochemical Reconstruction of the Provenance, Tectonic Setting and Paleoweathering of Lower Paleozoic Black Shales from Northern Europe
2022
Sylvester Ofili1, Alvar Soesoo2, Elena Panova3, Rutt Hints4, Sigrid Hade4, Leho Ainsaar1

Lower Paleozoic black shales from Estonia, Sweden, and Russia were analyzed for major and trace elements to reconstruct the provenance, tectonic setting, and paleoweathering conditions of these shales. The black…

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Geochemical screening of Eocene bivalves: disentangling environmental signals from diagenetic overprint
2021
Jorit F. Kniest1, Silke Voigt1, Jonathan A. Todd2, Julia D. Sigwart3, Michael Joachimski4, Dominik C. Hezel1, Jacek Raddatz1

The Eocene ´greenhouse´ climate represents the warmest period within the Cenozoic and has therefore become especially interesting as an analogue for estimated future climate scenarios. For paleo-climate reconstructions, bivalves represent…

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Geochemical, Petrophysical and Rock Mechanical Characterization of Crystalline Rocks in Germany for High-level Radioactive Waste Disposal – First Results of the AMPEDEK Project
2023
Leandra Weydt1, Markus Schedel1, Ángel Ramírez1, Ingo Sass1

The safe disposal of radioactive waste is a critical and frequently discussed topic in society. The Bundesgesellschaft für Endlagerung (BGE) was assigned with the selection of a suitable site for…

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Geochemistry and Petrology of Ultramafic Rocks from the Troodos Ophiolite, Cyprus: New Perspectives on the Evolution of Boninitic Melts
2022
Max Hellers1, Reiner Kleinschrodt1, Eric Hasenstab1, Frank Wombacher1, Josua Pakulla1, Carsten Münker1

The Troodos Ophiolite Complex in Cyprus consists of Neotethyan oceanic crust that formed above a subduction zone in a so-called suprasubduction zone setting (SSZ). In this geological environment, fluids from…

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Geochemistry, mineralogy, Cu, Zn and Fe isotopic composition of Gossans found in Cyprus-type VMS systems from the Troodos ophiolite
2021
Nina Zaronikola1, Vinciane Debaille1, Sophie Decrée2, Ryan Mathur3, Christodoulos Hadjigeorgiou4

The Troodos ophiolite hosts significant Volcanogenic Massive Sulfide (VMS) systems, well-known as Cyprus-type sulfide deposits. They are mafic type VMS deposits, mainly enriched in copper and zinc and they have…

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Geochronology and trace element composition of zircon in granitoids from the Indus Syntaxis, northern Pakistan: new evidence for Palaeoproterozoic A-type magmatism in the north-western part of the Indian plate
2023
Tanveer Ahmad1, Mohammad Arif2, Kirsten Drüppel1, Muhammad Qasim3, Muhammad Sajid2

Two granitic plutons are exposed at Dubair and Shang in the vicinity of Besham, northern Pakistan, in the northwestern part of the Indian plate. Both granitoids mainly consist of perthitic…

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Geodata management in a European perspective – The European Geological Data Infrastructure (EGDI)
2021
Dana Čápová2, Jasna Šinigoj3, Marc Urvois4, Matt Harrison4, Patrick Bell5, Margarita Sanabria6, José Román Hernández Manchado6, Mikael Pedersen1, Jørgen Tulstrup1

In 2014, an analysis showed that EU had funded geoscientific data harmonisation projects with several hundred thousand Euros but that only a small fraction of the results were sustained a…

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Geodynamic and its influence on topography evolution in Central and Northern Europe: From the Past to the Present
2021
Guillocheau, Francois (1); Krob, Florian (1); Bunge, Hans-Peter (2); Francois Guillocheau, Francois (3)

Central and Northern Europe has experienced several stages of geodynamic evolution leading to significant changes of topography in the past. Whereas the Caledonian and Variscan topographic evolution is caused by…

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Geodynamic controls on sediment-hosted metal deposits in continental rifts
2023
Anne Glerum1, Sascha Brune2, Joseph Magnall1, Philipp Weis2, Sarah Gleeson3

Many large sediment-hosted clastic-dominated (CD) base metal deposits occur in failed continental rifts and the passive margins of successful rifts, e.g., in the MacArthur Basin, Australia, and in the Selwyn…

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Geodynamic modelling of the Wilson-cycle: investigating the interplay of structural and thermal inheritance
2023
Zoltán Erdős1, Susanne Buiter2, Joya Tetreault3

Many rifted margins are thought to have formed in areas that have previously experienced subduction and orogenesis. Yet, our understanding of how structural and thermal inheritance from preceding convergence affects…

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Geoethics and the responsibility of Geoscientist in society: from research to teaching and outreach
2020
Clara Vasconcelos (1) & Nir Orion (2)

Geoethics emerged as the discipline that studies and reflects upon the values that underpin appropriate human behaviors and practices, whenever humans interact with the Earth. The foundations of geoethics are…

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Geoethics and Transgenerational Climate Crimes – four examples to hold States and corporations accountable
2023
Angelica De Freitas1

Is it possible to hold States and corporations accountable for the extractive industry’s transgenerational climate crimes? Answering this question implies the definition of climate crimes in time and space and,…

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Geoethics, applied philosophies of geoSTEM
2022
Martin Bohle1

The geoSTEM disciplines (Geosciences, Erdwissenschaften, Sciences de la Terre) are relevant to Planet Earth’s stewardship in times of anthropogenic global change. Research into ‘responsible geosciences’ recently led geoscientists to amalgamate…

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Geohub: Sustainable Geomodeling
2021
Georg Semmler, Helmut Schaeben, Heinrich Jasper

Digital 3D geomodels are becoming a routine tool for geoscientific research, engineering and surveying. Most models incorporate various datasets into a simplified virtual representation of reality. Turning the process of…

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GeoLaB – Geothermal Laboratory in the Crystalline Basement
2021
Thomas Kohl1, Eva Schill1, Judith Bremer1, Günter Zimmermann2, Olaf Kolditz3, Ingo Sass4

In Central Europe, the largest geothermal potential resides in the crystalline basement rock with important hotspots in tectonically stressed areas. To better harvest this energy form under sustainable, predictable and…

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Geologic framework and first results from ICDP BASE drilling in the Moodies Group (~3.22 Ga), Barberton Greenstone Belt, South Africa
2022
Christoph Heubeck1, Nic Beukes2, BASE onsite geoscience team1

The up to 3.5 km thick Moodies Group (ca. 3.22 Ga) of the Barberton Greenstone Belt, South Africa and Eswatini, exposes some of the oldest well-preserved sedimentary strata on Earth….

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Geological and geophysical data integration and modeling approach for subsurface characterization; Northern Bavaria case study
2023
Hamed Fazlikhani1, Wolfgang Bauer1, Harald Stollhofen1, Daniel Koehn1

Characterizing the subsurface structural and stratigraphic configuration is critical to address current global environmental challenges such as green energy transition and underground storage. Northern Bavaria, as our case study, is…

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Geological archives and proxies of polar environmental change: Data basis for constraining numerical simulations
2021
Klages, Johann Philipp (1); Müller, Juliane (1,2,3); Kuhn, Gerhard (1)

In recent years, geoscientific data provided considerable insights into the environmental past of polar regions. Conventional coring, seafloor drilling, and terrestrial campaigns led to increasing data availability of past environmental…

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Geological Archives in space and time – new challenges for vintage data
2023
Alexander Malz1, Thomas Häusler1, Klaus-Jörg Hartmann1, Bodo-Carlo Ehling1

The Geological Archives (geoarchives) of State Geological Surveys have an over 150 years old tradition. Since the first geological surveys were funded in the early 1870s State Geological Surveys collected,…

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Geological characterisation for deep geological repository site selection: an example of Hrádek site, Czech Republic
2023
Zita Bukovská1, Ondřej Švagera1, Lenka Rukavičková1, Petr Mixa1

The site selection process for deep geological repository is a long-term project based on numerous disciplines. In the Czech Republic the geological characterisation was performed on nine selected sites in…

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Geological Mobile Digital Mapping (GeoMoDiM)
2023
Pascal Michael Woiton1, Mario Valdivia Manchego1, Benjamin Kipp1

Geological mapping represents an important qualification within the framework of geoscientific programmes of study. The GeoMoDiM project, funded by Bonn University, aims to firmly integrate digitally supported geological mapping into…

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Geological Reasoning for the Site of the Swiss Nuclear Waste Repository
2023
Michael Schnellmann1, Tim Vietor1, Nagra’s site selection team1

The site selection process for the deep geological repository for Swiss radioactive waste is in its final phase. Using 3D-seismics and deep boreholes, Nagra has collected the data for selecting…

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Geological storage of Hydrogen for Net Zero
2023
Katriona Edlmann1, Ali Hassanpouryouzband1, Tim Armitage1, Eike Thaysen1, Niklas Heinemann1

To meet the global commitments for net zero carbon emissions our energy mix must transition from fossil fuels. Hydrogen is gaining increasing recognition as a low carbon energy option to…

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Geologicaly-sourced H2 exploration: pathfinders, tools, and methods
2021
Laurent Truche, Frédéric-Victor Donze

Recently, the growing demand for carbon-free energy has sparked an unprecedented interest in naturally occurring H2, as it could represent a potential alternative resource to fossil fuels. Throughout the world,…

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Geology – Where? – Horizon Europe and possible approaches to research opportunities in the EU
2020
Andreas Nikolaus Küppers,

The Potsdam Conventus, Germany Embedded in a large structure of legislative and administrative processes, the new research and innovation framework program of the European Union ‚Horizon Europe‘ promises to offer…

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Geology across borders – Towards a consistent interpretation of the subsurface in the Central North Sea covering the Dutch, German and Danish offshore areas.
2021
Hauke Thöle1, Fabian Jähne-Klingberg1, Maryke den Dulk2, Hans Doornenbal2, Finn Christian Jakobsen3, Peter Britze3

Geology does not follow national borders and for many areas of application, it is essential to know the characteristics of the subsurface on both sides of the border. In the…

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Geology of the Layla Lakes: An exceptional lake formation history in Central Saudi Arabia
2023
Anastasiya Oepen1, Jens Hornung1, Nils Michelsen1, Susanne Lindauer2, Matthias Hinderer1

The Layla Lakes (300 km S Riyadh) had been fed by fossil groundwater until they dried up in the 1990s due to agricultural water abstraction, revealing a series of 22…

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Geology on Mars
2021
John P. Grotzinger

NASA’s Mars Science Laboratory mission, with its Curiosity rover, has been exploring Gale crater since 2012 with the goal of assessing its potential to support life. The mission has compiled…

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Geomechanical analyses of submarine CO2 injection in the geological formations in the German North Sea
2023
Hendrawan D.B. Aji1, Firdovsi Gasanzade1, Frank Wuttke1, Sebastian Bauer1

CO2 storage potential in sandstone formations in the German North Sea is investigated by GEOSTOR consortium. This contribution discusses some of the results from the investigation of the geotechnical impact…

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Geometric morphometric analysis of potential hybridisation between cave bears (Ursus spelaeus) and brown bears (Ursus arctos) in the late Pleistocene.
2020
Stefan Dehos (1) & Anneke H. van Heteren(1,2,3),

The brown bear (Ursus arctos) is one of the closest living relatives to the extinct Late Pleistocene cave bear (Ursus spelaeus). According to a preliminary analysis late Pleistocene bear skull…

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Geomonitoring as a contribution to process understanding of river
2021
Peter Menzel1, Mohamed Sobh1, Islam Fadel2, Christian Gerhards1

The inversion of gravity data for crustal thicknesses is a nonunique problem. Therefore, additional independent information (e.g., seismic data) is needed to constrain the inversion process. Despite decades of exploration…

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Geomonitoring as a contribution to process understanding of river renaturation in post-mining areas – Example: Emscher catchment
2021
Bodo Bernsdorf, Tobias Rudolph, Benjamin Haske

The Emscher, formerly discredited as the „Köttelbecke“, is being renaturalised at great expense by the EMSCHERGENOSSENSCHAFT / LIPPEVERBAND in the course of post-mining activities. In addition to the Emscher Canal…

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Geomorphologic evidence for postglacial activity of the Fella-Sava Fault, eastern Southern Alps, Italy
2023
Jakob Stubenrauch1, Christoph Grützner1, Kamil Ustaszewski1

The eastern Southern Alps are a seismically active region. Research has been conducted to identify seismically active faults, with the sources of several catastrophic earthquakes still unknown. In this study,…

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Geomorphological significance of the Atacama Pediplain as a marker for the climatic and tectonic evolution of the Andean forearc
2022
Sebastián Muñoz-Farías1, Benedikt Ritter2, Tibor J. Dunai2, Jorge Morales-Leal1, Eduardo Campos1, Richard Spikings3, Rodrigo Riquelme1

The Atacama Pediplain (AP) is a major element in the Atacama Desert landscape, commonly used as an indicator of climatic and tectonic stability. We choose the El Salado Canyon area…

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Geoparks – Connecting geology, nature and society for a sustainable future
2023
Anna Mareis1, Fabian Weiß1

Geoparks serve as an important link between science and the public. Through the lens of geotourism, they not only strengthen regional development and sustainable economics but also offer an interesting…

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Geophysical borehole logging – using existing data for petrophysical and regional characterisation of claystone formations
2021
Gesa Kuhlmann, Klaus Reinhold

Claystones in the deep subsurface have various barrier-effective properties for solute transport. Changes in the mineralogical composition (incl. fluids), the structure of claystones in the strict sense, as well for…

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Geophysical Prospection in Archaeology
2023
Burkart Ullrich1, Jochem Dorrestein1, Annika Fediuk1, Ronald Freibothe1, Robert Kell1, Rudolf Kniess1, Jess Meyer1, Martin Wetzel1, Henning Zoellner1

In recent decades, Applied Geophysics has become firmly established among geoscientific methods in archaeology for the non-destructive prospection of archaeological remains in the subsurface. Significant contributions have been made by…

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Geophysical signature of the early Carboniferous Saxothuringian Basin, Central European Variscides
2023
Hamed Fazlikhani1, Uwe Kroner2, Harald Stollhofen1, Wolfgang Bauer1, Daniel Koehn1

The Early Carboniferous Saxothuringian Basin (SXB) is exposed on the northwestern side of the Bohemian Massif in Central Europe. SXB is bordered by the Mid-German Crystalline Zone (MGCZ) to the…

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Geophysics combined with Petrography – a promising approach for 3D crystalline basement characterization?
2023
Christian Olaf Müller1, Manuela Zeug1, Alexander Malz1

High-grade metamorphic and plutonic rocks in crystalline complexes are of increasing interest as host rock for geothermal plays and for understanding plate tectonics. In this regard the Pretzsch-Prettin Crystalline Complex…

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Geoscience and Society
2021
Bücker, Christian (1); Hilgers, Christoph (2); Schilling, Frank (3)

Climate, energy transition, raw material supply, underground storage are socially relevant topics that require geoscientific expertise but are not associated with the geosciences. How do you bring topics from the…

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Geoscience Education for the Young Generation: mileko – The Mineralogical Science Kit
2022
Bastian Joachim-Mrosko1, Maria Mrosko2, Junge Malte3, Seybold Lina4, Hecht Lutz5, Mock Dominik6, Fischer Lennart A.7, Stalder Roland1, Simon Gilla8

Geosciences only play a minor role in today’s German and Austrian school curricula, although being strongly related to important topics such as climate change or the sustainability of resources. The…

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Geoscience Education for the Young Generation: mileko – The Mineralogical Science Kit
2021
Maria Mrosko1, Lennart A. Fischer2, Lutz Hecht3, Bastian Joachim-Mrosko1, Malte Junge4, Gilla Simon5, Roland Stalder1

Geosciences only play a minor role in today’s German and Austrian school curricula, although being strongly related to important topics such as climate change and sustainability of resources. The Mineralogical…

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Geoscience transfer on guided tours into the Messel Pit UNESCO World Heritage Site, Hesse, Germany – A public outreach challenge
2022
Maria-Luise Frey1

Public outreach to transfer geoscientific themes embraces a wide field of activities. University PR on geoscientific investigations, natural history museum exhibitions on e.g Dinosaurs, the establishment of geo-trails with geoheritage…

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Geosciences Support Monument Conservation – 25 Years of German Apsara Conservation Project
2022
Hans Josef W. Leisen1, Esther von Plehwe-Leisen2

The Angkor region was the center of the historic Khmer kingdom, now Cambodia, from the 9th-15th centuries. The Angkor Park, with over 200 temples, has been a UNESCO World Heritage…

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Geoscientific Approach to Diagnosis of Weathering Damage on Prehispanic Sandstone Monument Piedra Pintada de Aipe, Colombia
2023
Ali Duran Öcal1, Thomas Cramer1, Mehmet Zeki Billor2

Rock art is a common cultural manifestation throughout Colombia. Here the Painted Stone of Aipe represents a striking archaeological evidence as an outstanding masterpiece of pre-Hispanic rock art. Several pectorals…

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Geoscientific Characterisation and Interpretation (Geosynthesis) within the Preliminary Safety Assessment in the German Site-Selection Procedure for a High-Level Nuclear Waste Repository
2021
Reinhard Fink, Sebastian Zimmermann, Nils-Peter Nilius, Eike Völkner, Sönke Reiche

After implementation of the Repository Site Selection Act (StandAG) in 2017, the Federal Company for Radioactive Waste Disposal mbH (BGE mbH), as the German waste-management organization, started the site-selection procedure…

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Geoscientific Characterisation of Sub-areas as Part of the German ‘Repository Site Selection Act‘
2023
Dorothea Reyer1, Nadine Schöner1

According to the ‘Repository Site Selection Act’ (Standortauswahlgesetz – StandAG), the German site selection procedure is an iterative process and consists of three phases with increasing levels of detail in…

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Geoscientific education in schools: Four workshops to encourage children to learn more about rocks and minerals
2022
Malte Junge1, Melanie Kaliwoda1, Omar Gianola2, Julia Holzmueller2, Felix Hentschel2, Wolfgang W. Schmahl1

The current global pandemic has hit children and young people particularly hard. The online lessons brought a lot of distance and some children lost the fun of school education. In…

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Geoscientific teaching material for teachers and students
2022
Martin Meschede1

In Germany, the geosciences are not part of the school curriculum as an independent teaching unit. At present, basic knowledge in the geosciences is only taught in mostly isolated geography…

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Geotechnical Use of Deep Groundwater Systems
2021
Fischer, Sebastian (1); Fritsche, Johann-Gerhard (2)

In recent years, the deep geological underground gained more and more attention as it offers various reservoirs potentially applicable for different geotechnical use options, e.g. deep geothermal energy or geological…

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GEOTHERMAL DEVELOPMENT AND SOCIAL VULNERABILITY CASE EXPERIENCE NAMASIGUE, HONDURAS
2023
Elisa Gabriela Pineda Mejia1, Miguel Angel Garcia Wiliams1, Cindy Posas2

Honduras, located in Central America at the convergence of the North American tectonic plate with the Caribbean plate in the northwestern part and the Cocos plate with the Caribbean plate…

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Geothermal energy as a stepstone for a zero-emission university campus
2023
Felix Schumann1, Hannes Hofmann2, Maximilian Friebe3, Guido Blöcher4, Tomás Fernandez-Steeger1

The University Campus Charlottenburg/Berlin will be used as an example to show how geothermal energy can make a decisive contribution to a climate-neutral university campus. In combination with heat pumps,…

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GEOTHERMAL FAVORABILITY MAPS FOR THE MEMBER COUNTRIES OF THE SICA REGION: A MAP OF OPPORTUNITIES
2023
Karla María Alvarenga Zaldívar1, Alejandra Tatiana Menjívar Menjívar1

The Geothermal Heat Utilization in Industrial Processes in SICA Member Countries (GEO II) project, implemented by the Deutsche Gesellschaft für Internationale Zusammenarbeit (GIZ) GmbH on behalf of the German Federal…

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Geothermal potential and opportunities in Vietnam
2021
Viet Cao

Located between the Pacific Ring of Fire and Alpide Belt, Vietnam possesses significant potential geothermal resources, with more than 300 hot spring sites with temperatures from 40oC to 100oC have…

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Geothermal potential of Mesozoic carbonates on the example of the Rüdersdorf Formation (North German Basin): opportunity or not?
2023
Fabian Käsbohrer1, Matthias Franz1

The Mesozoic succession of the North German Basin (NGB) yields enormous resources of heat in place bound to Mesozoic sandstone reservoirs located at depths of up to 2.500 m. Compared…

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Geothermal Project Potsdam
2023
Hagen Feldrappe1, Marlies Engelmann1, Andre Gerstenberg2, Tristan Grüttner2

Potsdam the provincial capital of the German state Brandenburg started with an ambitious program to reduce its climate impact about 10 years ago. The program includes the substitution of fossil…

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Geothermal Reservoir Characterisation and Probability Analysis of Fractured Media at Grimsel Test Site, Switzerland
2021
Selvican Türkdogan1,2, Peter Achtziger1

Exploitation of deep geothermal energy is considered as one of the most efficient renewable energy applications. In this sense, reservoir stimulation is established to extract geothermal energy from EGS (Enhanced…

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Geotopes as a tool for geoscience teaching and outreach
2021
Anke M. Friedrich

Traditional geological field education includes organized trips of large student groups to geological outcrops. Typically, instructors guide students to outcrops and give (mini-)lectures, such that the students’ notes consist of…

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GEOWiki@LMU – behind the scenes
2023
Donjá Aßbichler1, Daniel Schmid1, Carolin Otte1, Elina Bauer1, Natalie Diesner1, Leonard von Ehr1, Paul Herwegh1, Philipp Kessler1, Leon Koß1, Phil Lavorel1, Alina Piller1, Andrea Schmid2, Wolfgang Stoiber1, Malte Junge3, Eileen Eckmeier4

GEOWiki@LMU is more than just a visible website on the Internet. Various different activities are going on behind the scenes. All students, from the first semester up to advanced classes,…

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GEOWiki@LMU – an online platform for university and school education in geosciences
2022
Donja Aßbichler1, Malte Junge2, Eileen Eckmeier3, Carolin Otte1

GEOWiki@LMU is a constantly growing open platform for the promotion of practical and research-oriented knowledge acquisition. Its major objective is to provide information on methodologies relevant to geosciences, with focus…

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GEOWiki@LMU – an online platform for university and school education in geosciences
2021
Magdalena Luise Plitz1, Katrin Mühlberg1, Donja Aßbichler1, Laurin Lidl1, Malte Junge2, Eileen Eckmeier3

GEOWiki@LMU is a constantly growing open platform for the promotion of practical and research-oriented knowledge acquisition elaborated by and for students of earth sciences. The contents are developed by students…

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GEOWiki@LMU – an update
2023
Donjá Aßbichler1, Carolin Otte1, Daniel Schmid1, Elina Bauer1, Natalie Diesner1, Leonard von Ehr1, Paul Herwegh1, Philipp Kessler1, Leon Koß1, Phil Lavorel1, Alina Piller1, Andrea Schmid2, Wolfgang Stoiber1, Malte Junge3, Eileen Eckmeier4

GEOWiki@LMU is a constantly growing open platform for the promotion of practical and research-oriented knowledge acquisition. Its major objective is to provide information on methodologies relevant to geosciences, with focus…

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GEOWiki@Schule – eine geowissenschaftliche Online-Lernplattform für den Schulunterricht
2022
Donja Aßbichler1, Malte Junge2, Daniel Schmid1

Das GEOWiki@Schule ist ein Teilbereich der frei zugänglichen Online-Lernplattform GEOWiki@LMU, das derzeit auf Initiative von Lehramtsstudent:innen entsteht. Ziel ist es Schüler:innen und Lehrer:innen für die faszinierende Welt der Geowissenschaften zu…

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GEOWiki@Schule – eine geowissenschaftliche Online-Lernplattform für den Schulunterricht
2021
Magdalena Luise Plitz1, Katrin Mühlberg1, Donja Aßbichler1, Malte Junge2, Eileen Eckmeier3

Das GEOWiki@Schule ist ein Teilbereich der frei zugänglichen Online-Lernplattform GEOWiki@LMU, das derzeit auf Initiative von Lehramtsstudent:innen entsteht. Ziel ist es Schüler:innen und Lehrer:innen für die faszinierende Welt der Geowissenschaften zu…

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Geowissenschaftliches Prozessverständnis in Bergsenkungsgebieten
2022
Bodo Bernsdorf1, Tobias Rudolph1, Marcin Pawlik1, Benjamin Haske1

Rohstoffgewinnung geht mit einer mehr oder minder massiven Veränderung der Landschaft und den natürlichen Verhältnissen einher. Die für unseren Alltag notwendige Entnahme von Ressourcen beeinflusst nahezu alle Aspekte des Naturhaushaltes:…

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GFZ Data Services – A domain repository for geosciences data
2022
Florian Ott1, Kirsten Elger1, Simone Frenzel1

GFZ Data Services is a domain repository for geosciences data comprising the Earth, Space and Environmental Sciences. It assigns digital object identifier (DOI) to data and scientific software since 2004….

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Giant growth in insular fossil dormice
2020
Jesse James Hennekam (1), Roger J. Benson (2), Victoria L. Herridge (3), Nathan Jeffery (4), Enric Torres-Roig (5), Josep Antoni Alcover (6) & Philip G. Cox (1,7)

Drastic morphological changes often occur within mammalian species during prolonged isolation on islands. The depauperate nature of insular ecosystems is often associated with phenomena known as insular dwarfism and gigantism,…

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Giant impacts onto magma ocean: metal-silicate mixing constrained by coupling analogue laboratory experiments and numerical modelling
2023
Laetitia Allibert1, Maylis Landeau2, Miki Nakajima3, Randolph Röhlen1, Augustin Maller2, Kai Wünnemann1

Planetary formation models suggest that Earth experienced multiple high-energy impacts. Among those, the Moon-forming event is thought to be responsible for melting a large fraction of proto-Earth’s silicate mantle. Mixing…

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GIS-based geological 3D modeling of the Paleozoic rocks of the Halle-Wittenberg-block in the urban area of Halle (Saale) and surroundings
2023
Benedykt Vincent Pasek1, Wolfgang Gossel1

The Halle Fault in central Germany is a major tectonic fault that separates the lower permian rocks (Rotliegend) in the north from triassic rocks in the south. While geological modeling…

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GisInfoService – A Web Application of German Aggregates Associations for their Members Dagmar Kesten
2021
Dagmar Kesten

More than 15 years ago the geographical information system GisInfoService was implemented as part of the project ‚GeoRohstoff‘ of the former Commission for Spatial Information Economics (GIW-Kommission). Sponsored by the…

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Givetian to Tournaisian substages – significance, multi-disciplinary approaches, and GSSP potential in the Rhenish Massif (Germany)
2023
Ralph Thomas Becker1, Zhor Sarah Aboussalam1, Felix Saupe1, Sven Hartenfels2

The Global Time Scale of the International Commission on Stratigraphy includes subdivisions of systems down to stages but substages can be recognized once all stages are ratified. Devonian substage progress…

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Global Findability of FAIR Research Datasets
2023
Elfrun Lehmann1, Harry Becker1, Tatjana Fritz1, Florian Wille1, Andreas Sabisch1, Denise Siever1, Birgit Schlegel1

Currently, no search engine is available for specific and easy searches of published research datasets stored in institutional repositories. Most commonly, primary research data in institutional repositories are accessed via…

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Global Sr-Nd-Os isotope compositions and highly siderophile elements of carbonatites
2023
Ladislav Polák1, Tomáš Magna2, Lukáš Ackerman1, Vladislav Rapprich2

The examination of more than 500 samples of worldwide carbonatites on the basis of Sr-Nd isotope systematics allows dividing them into three groups which do not follow conventional grouping. Carbonatites…

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GlobaLID – a community-driven global lead isotope database with interactive web application
2022
Katrin Julia Westner1, Sabine Klein2, Thomas Rose3, Yiu-Kang Hsu4

Lead isotopes are the most universally used method to reconstruct the raw material origin of archaeological objects made of lead, silver, copper, gold and their alloys, but also are routinely…

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Granulometric and lithologic control on apatite and zircon concentrations in Alpine fluvial sediment
2021
Daniela Krieg1, Laura Stutenbecker1, Ariane Djahansouzi1, Christoph Glotzbach2

Detrital heavy mineral compositions are controlled by many factors such as mineral fertility in the source rocks and hydraulic sorting. Quantifying and understanding the resulting bias is crucial especially for…

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Gravitational collapse of a volcano edifice as a trigger for explosive carbonatite eruption? – a lesson from Kaiserstuhl
2023
Vladislav Rapprich1, Benjamin F. Walter2, Veronika Kopačková-Strnadová1, Tomáš Magna1

The Miocene Kaiserstuhl Volcanic Complex in the Upper Rhine Graben is known for simultaneously exposing both intrusive and pyroclastic calciocarbonatites. This makes Kaiserstuhl a promising candidate for studying the field…

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Gravity forward modelling and inversion based on the updated, enhanced gravity field solution in Antarctica
2021
Theresa Schaller1, Mirko Scheinert1, Philipp Zingerle2, Roland Pail2, Martin Willberg2

Geoscientific studies in Antarctica are extremely challenging due to the remote location of the continent, its harsh environment and difficult logistics. Additionally, the continental crust is covered by an up…

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Gravity survey in delineating geologic features of interest for deep geothermal use at Campus North of KIT.
2021
Maximiliano Pavez1, Natalia Cornejo1,2, Florian Bauer1, Eva Schill1,2

The seasonal mismatch of the thermal energy demand can be addressed by thermal energy storage systems of high capacity (e.g. Lee 2013). In this scenario, High-temperatures aquifer thermal energy storage…

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Gravity-based density models and their applications
2021
Gómez-García, Ángela María (1); Bott, Judith (1); Scheck-Wenderoth, Magdalena (1); Götze, Hajo (2); Szwillus, Wolfgang (2)

Gravity measurements contain important information about the subsurface at every spatial scale. Satellite missions provide highly accurate, global measurements, that allow building and testing 3D models of the Earth even…

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Great Blue Hole: a sedimentological archive of tropical cyclone frequency covering the Holocene at annual resolution
2023
Dominik Schmitt1, Eberhard Gischler1, Martin Melles2, Hermann Behling3, Lyudmila Shumilovskikh3, Flavio S. Anselmetti4, Hendrik Vogel4, Jörn Peckmann5, Daniel Birgel5

Sedimentary archives from marine sinkholes enable long-term reconstructions of past storm activity. In the last years, numerous cyclone-frequency reconstructions have been obtained from sediment cores collected in blue holes located…

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Green-field exploration strategy for de-risking geothermal projects in the Aachen-Weisweiler area, Germany – The “Field Scale Laboratory for Deep Geothermal Energy Rhineland” Project
2023
Florian Wellmann1, Oliver Ritzmann2, Michael Kettermann2, Jan Niederau2, Kira Aßhoff2, Alexander Jüstel3, Frank Strozyk2, Thomas Reinsch2, Rolf Bracke4

The subsurface of the Aachen-Weisweiler area with its Carboniferous and Devonian carbonates is a green-field target location for testing and developing deep geothermal energy systems in North Rhine-Westphalia, Germany. Despite…

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Ground Motion Emissions from Wind Turbines
2021
Stefan Baisch, Robert Vörös, Christopher Koch

Traffic light systems (TLSs) are used in different energy technologies for limiting the strength of induced seismicity. The TLS concept is based on real-time monitoring of induced seismicity in combination…

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Ground Motion Emissions from Wind Turbines: State of the Art and Implications
2021
Joachim Ritter, Laura Gassner

Wind turbines are massive tall buildings which swing considerably above the ground, especially when they are in operation. These oscillations are composed of the eigenmodes of the whole building and…

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Groundwater Availability: Current Trends and Challenges in Groundwater Resources Exploration and Management
2021
Goldscheider, Nico (1); Scheytt, Traugott (2)

Groundwater resources are critical for the freshwater supply of humanity, for drinking water purpose and agricultural irrigation. At the same time, many aquatic and terrestrial ecosystems are directly or indirectly…

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Groundwater exploration and production in arid Jordan
2021
Falk Lindenmaier, Gerhard Kapinos, Mark Gropius, Klaus Holzner, Florian Brückner, Daniel van Rooijen, Rebecca Bahls, Mathias Toll

The water providers of Jordan are constantly seeking to find new water resources to supply the public. Water table depths of up to 250 m, dry aquifers and saline waters…

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Groundwater monitoring in Niamey, Niger: Is groundwater an alternative drinking water supply under the current quality conditions?
2023
Issa Bakayoko1, Didier Zinsou2, Manal Wannous1

Groundwater in Niger represents an essential resource for survival in remote areas far from the Niger River and a reserve in areas where access to surface water is secured as…

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Groundwater quality: new developments on understanding transport and mobility of contaminants related to anthropogenic impacts.
2021
Licha, Tobias (1); Schiperski, Ferry (2)

Groundwater quality is widely compromised by anthropogenic impact. This becomes evident by the presence of numerous anthropogenic organic and inorganic contaminants in groundwater. Contaminants are of widespread origin. They enter…

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Groundwater resources in northern Namibia
2021
Georg J. Houben

The transboundary Cuvelai-Etosha Basin (Namibia/ Angola) is a semi-arid region. Rising population and water demand increase the stress on already scarce water resources. The local aquifers, the perched KOH-0 and…

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Groundwater-systems in mining areas – The influence of water bearing adits
2021
Tobias Rudolph, Christian Melchers, Peter Goerke-Mallet, Detlef Engel

Water bearing adits form a historic near-surface underground drainage and outflow systems whose functionality is of considerable importance in many mining areas all over the world. Water bearing adits are…

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Growth of non-typical garnet textures during amphibolite facies metamorphism: Dwalile Supracrustal Suite, Ancient Gneiss Complex, Eswatini
2023
Valby van Schijndel1, Kathryn Cutts2, Gary Stevens3, Elis Hoffmann4, Markus Ohl5, Yuntao Ji5, Oliver Plümper5

The Dwalile Supracrustal Suite of the Ancient Gneiss Complex (Eswatini) represents one of the oldest greenstone belts in the world with a crustal evolution history from Palaeo- to Mesoarchaean times….

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H2O phase separation in FeO-free phonolitic melt
2022
Dennis Eul1, Anja Allabar1, Patricia Petri1, Marcus Nowak1

Melt degassing is an important driving force for accelerated magma ascent from storage regions toward the surface and volcanic activity. Hence, the investigation of degassing processes of H2O as the…

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Habitability of early Earth: Liquid water under a faint young Sun facilitated by tidal heating due to a closer Moon
2021
René Heller1,2, Jan-Peter Duda3,4, Max Winkler5, Joachim Reitner6,4, Laurent Gizon1,2

Geological evidence suggests liquid water on the earth’s surface as early as 4.4 Ga when the faint young Sun only radiated about 70 % of its modern power output. At…

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Half-precession signals in Lake Ohrid and their spatial and temporal connection to proxy records in the European realm
2021
Arne Ulfers1, Christian Zeeden1, Silke Voigt2, Wonik Thomas1

Lake Ohrid (North Macedonia/Albania) is Europe’s oldest lake and thus is a valuable archive for changes of local (hydro)climate during the last 1.36 million years (e.g., Wagner et al. 2019)….

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Hans Merensky (1871–1952) – Ein Ausnahmegeologe, Bergmann, Prospektor, zukunftsorientierter Wissenschaftler, Naturschützer und Mäzen. Seine Lagerstättenfunde sind bis heute von großer rohstoffwirtschaftlicher Bedeutung
2022
Wipki, Mario; Röhling, Heinz-Gerd; Gauert, Christoph; Wellmer, Friedrich-Wilhelm

[Hans Merensky (1871-1952) – An exceptional geologist, miner, pro-spector, future-oriented scientist, conservationist and patron. His discoveries of deposits are still of great importance for the raw materials industry today.]  …

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Harmonised data on European raw materials, the creation and content of the MIN4EU database
2021
Lisbeth Flindt Jørgensen1, Eimear Deady2, Špela Kumelj3, Kari Aslaksen Aasly4, Marc Urvois5, Jørgen Tulstrup1, Mikael Pedersen1

European geology ranges from old mountain chains with more or less altered magmatic and sedimentary deposits over glaciogenic materials from the recent Ice Ages to very young marine or alluvial…

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Harmonizing the use of PIDs in data repositories – What do we need to consider?
2023
Emanuel Söding1, Andrea Pörsch2

Persistent identifiers (PIDs) are an integral element of the FAIR principles (Wilkinson et al. 2016) as they are recommended to refer to data sets and metadata. They are, however, also…

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Headward drainage basin expansion drives Miocene incision along the Yangtze River, China
2023
Alexander Rohrmann1, Eric Kirby2, Wolfgang Schwanghart3

Along the southeastern margin of the Tibetan Plateau, the onset of rapid fluvial incision during the Miocene is commonly attributed to growth of high topography. Recent recognition of lacustrine strata…

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Heatflow.world: an online application for disseminating the Global Heat Flow Database to the international heat flow community
2023
Samuel Jennings1, Kirsten Elger1, Sven Fuchs1, Nikolas Ott2, Stephan Mäs2, Ben Norden1, Florian Neumann1, Simone Frenzel1

The Global Heat Flow Database serves as a valuable resource for researchers studying Earth’s thermal regime. However, accessing and analyzing this vast collection of geothermal data is presently challenging and…

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Heterogeneity of Bulk Oxygen Isotopic Compositions in Anhydrous Interplanetary Dust Particles
2022
Birgit Schulz1, Christian Vollmer1, Lindsay P. Keller2, Peter Hoppe3

Anhydrous interplanetary dust particles are among the least altered ancient solar system materials. While hydrous IDPs are 16O-poor, likely due to the interaction with isotopically heavy H2O [1], oxygen isotopes…

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Heterogeneous nucleation and transformation of ikaite (CaCO3 x 6H2O) on mineral surfaces
2021
Samuel Benedikt Strohm, Sebastian Inckemann, Kun Gao, Wolfgang W. Schmahl, Guntram Jordan

One of the most puzzling calcium carbonate minerals is ikaite (CaCO3 x 6H2O). Its formation is of particular importance, because anhydrous calcium carbonate minerals occur as pseudomorphs after ikaite. Consequently,…

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Hidden in plain sight: using Atom Probe Tomography to understand the formation of invisible gold deposits
2022
Phillip Gopon1, James Douglas2, Viktor Bertrandsson Erlandsson3, Peter Felfer4

Carlin-type gold (CTG) mineralization is one the best studied, yet poorly understood gold mineralization styles in the world. These deposits occur predominantly along NW-SE trends in central Nevada and are…

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Hidden periodic states in gas hydrate systems causing spontaneous gas release without external triggers
2023
Ewa Burwicz-Galerne1, Shubhangi Gupta2

Natural marine gas hydrate deposits are one of the largest solid carbon-sequestrated reservoirs on Earth. Here we show that, remarkably, over 80 percent of all natural hydrate-bearing systems exhibit stable…

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High Precision 3D Modelling of Complex Geological Structures: An Approach Combining Different Types of Software for Maximum Efficiency
2021
Tatjana Thiemeyer, Manuela Stehle, Christian Dresbach, Matthias Beushausen

3D modelling of complex salt structures for the purpose of final disposal of radioactive waste requires a particulary high degree of precision. In this perspective, conventional geological 3D modelling software…

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High relative humidity in the hyper-arid late Miocene Atacama Desert quantified by triple oxygen and hydrogen isotopes in gypsum
2022
Claudia Voigt1, Daniel Herwartz2, Christina Obert2, Carsten Münker2, Guillermo Chong3, Michael Staubwasser2

In the Chilean Atacama Desert, alternation of lacustrine evaporites and diatomites suggest that hyper-aridity has prevailed since the early Miocene, but was interrupted by recurring pluvial phases. Changes in lacustrine…

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High resolution image of the Moho in the Eastern Alpine–Dinaric transition and implications for Alpine tectonic history
2023
Stefan Mroczek1, Frederik Tilmann1, Pleuger Jan2, Xiaohui Yuan3, Heit Ben3, SWATH-D Working Group -4, AlpArray Working Group -5

The tectonic structure of the Eastern Alps is heavily debated with successive geophysical studies that are unable to resolve areas of ambiguity (e.g., the presence of a switch in subduction…

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High resolution LA-ICP-MS mapping for the determination of partition coefficients using the example of natural barite
2022
Ferdinand Kirchner1, Martin Kutzschbach1, Thomas Neumann1, Henrik Drake2

In deep geological repository systems, containers for highly radioactive waste may encounter groundwater, which ultimately leads to the release of radionuclides. For the exploration of new atomic waste repositories, the…

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High resolution study of Glycymeris sp. shells from high energy event layers of the Cadiz Bay – a sclerochronological record for the onset of the Dark Ages Period
2023
Alexandra Németh1

Driving factors of shell growth of sub-fossil Glycymeris nummaria shells deposited by high energy events into layers at the Atlantic coast of the Iberian Peninsula were investigated by stable isotope…

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High temperature aquifer thermal energy storage (HT-ATES) in combination with geothermal heat production on the TU Delft campus: feasibility study and next steps
2021
Stijn Beernink1,2, Martin Bloemendal1,2, Phil Vardon1, Auke Barnhoorn1, Niels Hartog2

One of the most important actions to limit climate change is to decrease worldwide CO2 emissions. A large contributor to worldwide CO2 emissions is the production of heat. Therefore, the…

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High-precision Cd isotope analysis of soil and rock by double spike MC-ICP-MS
2022
Mengshu Liu1, Hui-Min Yu2

Cadmium (Cd) is a trace element on Earth and causes health problems to humans. A monitoring of the Cd level of, for example, arable soil is therefore of utmost importance….

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High-pressure phase relations in the system Fe-Ni-Cu-S up to 14 GPa
2022
Christopher Beyer1, Thilo Bissbort2, Rebecca Hartmann1, Raul Fonseca1

Base metal sulfides (Fe-Ni-Cu-S) are ubiquitous phases in mantle and subduction-related lithologies. Depending on their Cu and Ni content, sulfides may melt incongruently, leaving a solid residue called monosulfide solid…

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High-resolution 3D geological modelling for water safety: the story of the Lek River dike
2020
Romée Kars, Renée de Bruijn, Willem Dabekaussen, Bart Meijninger & Jan Stafleu

A large, densely populated part of the Netherlands is located below mean sea level. The risk of flooding is therefore omnipresent. Dikes are vital for safety, and local waterboards apply…

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High-Stress Crystal Plasticity of Calcite – Evidence from Ries Impact Breccias
2023
Claudia Trepmann1, Lina Seybold2, Stefan Hölzl2, Falko Langenhorst3, Kilian Pollok3, Melanie Kaliwoda4

Abstract: Twinned calcite occurs in calcite-bearing metagranite cataclasites within crystalline megablocks of the Ries impact structure, Germany, as well as in cores from the FBN1973 research drilling. The calcite likely…

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High-stress crystal-plasticity versus creep of rock-forming minerals – the importance of stress-loading rates indicated by deformation microfabrics
2023
Claudia Trepmann1

There is ample evidence of transient high stresses of several hundred MPa at the base of the seismogenic zone in the continental crust, i.e. at greenschist-facies conditions. The microstructural evidence…

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Highly siderophile elements reveal ancient subarc mantle beneath the South West Indian Ridge at Marion Rise
2022
Milena Waag1, William Lindsay Fleming1, Andrei Gastescu1, Harry Becker1, Jessica Alexandra Stammeier2, Philipp Gleissner1, J. Elis Hoffmann1, Henry J.B. Dick3, Jürgen Koepke4

The ultra-slow spreading South West Indian Ridge (SWIR) near Marion Rise comprises segments of thin crust and abundant abyssal peridotites exposed near the ridge axis. Zhou and Dick (2013) proposed…

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Hipercorig Hallstatt History (H3): Accessign a deep time window of Lake Hallstatt´s preHistory
2021
Michael Strasser1, Flavio Anselmetti2, Achim Brauer3, Stefano Fabbri2, Ulrich Harms3, Kerstin Kowarik4, Jochem Kueck3, Richard Niederreiter5, Ortler Marcel1, Ulli Raschke6, Hans Reschreiter4, Martin Töpfer3

The new hydraulic coring system Hipercorig was developed to recover undisturbed long cores from deep lacustrine sediment archives that record past environmental conditions and changes (Harms et al., 2020). Here…

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Historical Mine Plans meet Modern Remote Sensing Data – Knowledge and Geodata Management at the Research Center of Post-Mining
2021
Benjamin Haske, Julia Tiganj, Laura Klein

With the establishment of the Research Center of Post-Mining (FZN) at the Technische Hochschule Georg Agricola University in Bochum in 2015, the development of an extensive archive for the systematic…

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Holocene erosion and pedogenesis on watersheds of the Central Russian Plain
2021
Ekaterina V. Garankina1,2, Vladimir R. Belyaev1,2, Ilya G. Shorkunov2, Vladimir G. Van1, Anna E. Semochkina1,2

Watershed landscapes of the Borisoglebsk Upland and Suzdal Opolie are characterized by absence of the well-developed early Holocene paleosols suggesting dominantly negative sediment budget. Detailed study of Retisols revealed polycyclic…

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Holocene palaeoenvironmental conditions in the Baltic: Reconstructions based on palynological and biogeochemical data from IODP Expedition 347, Site M0063 (Landsort Deep)
2021
Ulrich Kotthoff1, Thorsten Bauersachs2

Restricted basins, such as the Baltic Sea, are particularly affected by global warming, which leads to intensifying stratification, severe oxygen depletion and increasing water temperatures. This, in turn, results in…

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Host influenced geochemical signature in the parasitic foraminifer Hyrrokkin sarcophaga
2021
Nicolai Schleinkofer1,2, David Evans1,2, Max Wisshak3, Janina Vanessa Büscher4,5, Jens Fiebig1,2, André Freiwald3, Sven Härter1, Horst Marschall1,2, Silke Voigt1,2, Jacek Raddatz1,2

Here, we present element to Ca ratios (Mg/Ca, Sr/Ca, Na/Ca and Mn/Ca) and stable isotope data (δ18O, δ13C) of the parasitic foraminifer Hyrrokkin sarcophaga, collected from two different host organisms,…

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How AlpArray is guiding us to a new model of Alpine orogenesis and status report of the AdriaArray initiative
2023
Mark R. Handy1, and members of the 4D-MB and the AlpArray Working Group1

AlpArray is changing notions of lithospheric subduction along the Alps and its effects on orogeninc lithosphere. Teleseismic Vp tomography reveals a slab of European lithosphere that is largely detached at…

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How deep is the critical zone?
2023
Laura Krone1, Nicole Stroncik1, Friedhelm von Blanckenburg2

The depth of the critical zone, the zone that spans from the canopy to the weathering front in the subsurface, is mostly unknown due to its inaccessible nature. To identify…

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How did anoxic conditions affect nitrogen fixing Cyanobacteria on early Earth?
2021
Arianna Gallo1, Katharina Ebel1, Thorsten Bauersachs2, Achim Herrmann1, Michelle M. Gehringer1

The Earth’s atmosphere was without free oxygen until the Great Oxygenation Event, thought to have been driven by oxygenic photosynthesis. The expansion of early Cyanobacteria was proposed to be restricted…

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How did Cyanobacteria survive increased atmospheric O2levels during the Great Oxygenation Event? The role of Superoxide Dismutases (SOD)
2021
Sadia S. Tamanna1, Joanne S. Boden2, Patricia Sánchez‐Baracaldo2, Michelle M. Gehringer1

Cyanobacteria are able to conduct oxygenic photosynthesis and are thought to have been responsible for the Great Oxygenation Event (GOE). The effect of increasing levels of atmospheric O2 on the…

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How does deep granite weather? Fractures matter but fracture size counts
2022
Nicole Alexandra Stroncik1, Simona Pierdominici1, Juliane Kummerow1, Laura Krone1, Friedhelm von Blanckenburg1

How the weathering zone propagates into un-weathered rock at depth is subject of increasing research. Some models suggest that the depth of the ground water table controls weathering zone thickness….

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How Earth’s early oceans and atmosphere help guide the search for life beyond
2023
Timothy W. Lyons1

Life and life-sustaining environments, including oceans, have existed on a dynamic Earth for more than four billion years despite the multitude of challenges that come with stellar, solar system, and…

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How greenstone belts deform: Tectonic style along the southern margin of the Barberton Greenstone Belt, Eswatini
2022
Deon J. Janse van Rensburg1, Sebastian Reimann1, Christoph Heubeck1

The Barberton Greenstone Belt (BGB) and many other orogenic belts in cratonic basements have been classically thought to be large, first-order synclinal structures, thus supporting vertically-dominated models of early Earth…

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How minerals govern the advance of weathering: comparison of a shallow and a deep weathering profile in different climatic zones (Chilean Coastal Cordillera)
2021
Ferdinand Jakob Hampl1, Ferry Schiperski1, Nicole Stroncik2, Michael Facklam3, Friedhelm von Blanckenburg2, Thomas Neumann1

Weathering is the fundamental precondition for erosion and soil formation which sculpture Earth´s surface. It is a complex interplay of minerals, rock fabric, tectonical fractures, climate, and organic activity. To…

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How much royalties are paid for hydrocarbon and lignite explorations in Germany?
2021
Philipp Blum, Frederic Berger

The Federal Mining Act (Bundesberggesetz, BBergG) was introduced to govern the use of the German subsurface. By paying royalties, companies obtain permissions to exploit resources in Germany. However, there is…

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How rock weathering sets Earth’s thermostat
2022
Friedhelm von Blanckenburg1

Since its formation 4.5 billion years ago our blue planet contains liquid water at its surface. If all water were frozen as on our cold neighbour Mars, or if all…

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How scarce is our water? An analysis of the present and future world water situation
2020
Randolf Rausch

If you look at the media, you come across new horror stories about water almost every day. Experts warn of a life-threatening global water crisis. Reports of droughts, wars for…

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Human impacts on marine sedimentary carbon sequestration
2023
Lucas Porz1, Wenyan Zhang1, Rümeysa Yilmaz2, Corinna Schrum2

The seafloor functions as a substantial long-term (>100 yr) carbon sink and reservoir in the form of sedimentary organic particles. Human activities can modify the seafloor’s natural carbon sequestration capacity…

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Hydro-mechanical parameters of Cornubian and Odenwald reservoir granitoids with focus on fracture stiffness testing
2021
Lena Muhl1, Guido Blöcher2, Ingo Sass1, Christian Kluge2, Tanja Ballerstedt2

For the resource development, geothermal systems need to be improved to increase the profitability of the investment. One aspect to support this aim is the reservoir productivity, a key parameter,…

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Hydro-Mechanical Simulation in Geothermal Reservoirs: Physics and Surrogate Modeling
2021
Ryan Santoso1, Denise Degen1, Mauro Cacace2, Florian Wellmann1

Hydro-mechanical (HM) simulations are essential aspects of geothermal reservoir studies to assess the heat production and the associated-environmental impacts, such as seismicity. HM simulations are numerically expensive (especially for large-scale…

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Hydro-thermal modeling of geothermal energy extraction from Soultz-sous-Forêts, France using supercritical CO2
2021
Mrityunjay Singh, Saeed Mahmoodpour, Kristian Bar, Ingo Sass

Climate change requires immediate action, and for sustainable development, and uninterrupted energy supply is necessary. Since anthropogenic emission of CO2 in the atmosphere has a major role in climate change,…

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Hydrocarbon Migration and its Implications for Hydrocarbon Exploration and Charge Risk Assessment: Case Studies from the Persian Gulf, Iran
2021
Alireza Baniasad, Ralf Littke

Historically, basin and petroleum system modeling has mainly focused on understanding the burial and thermal history of sedimentary rocks as well as related hydrocarbon generation from kerogen (sedimentary organic matter)…

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Hydrogen and organic molecules generation from water radiolysis: from grave to cradle
2021
Johan Vandenborre1, Laurent Truche2

Water radiolysis is a key process for hydrogen (H2) and abiotic organic molecules generation in the Earth’s crust. The aim of this presentation is to provide some insight into this…

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Hydrogen storage in a saline aquifer in Ketzin (Brandenburg, Germany) – a numerical pre-feasibility study in the context of the regional hydrogen economy
2023
Lea Döpp1, Márton Pal Farkas2, Anna-Maria Eckel2, Cornelia Schmidt-Hattenberger2, Ingo Sass1

Geological hydrogen storage in saline aquifers is necessary due to their large capacities, enabling long-term and short-term storage and providing a secure and cost-effective option for integrating hydrogen into the…

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Hydrogen storage in depleted gas fields – THM modelling strategy and preliminary case study results
2023
Sonu Roy1, Daniel von Reinicke Laredo1, Andreas Henk1

In the current global race towards achieving self-sufficiency and sustainability in meeting energy demands with net-zero emissions, hydrogen has emerged as a promising solution. However, hydrogen’s volumetric energy density is…

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Hydrogen storage in geological systems – potential for biological methanation
2023
Hilke Würdemann1, Christoph Otten1, Anja Striegel1, Vladislava Schulz1, Gion Strobel2

In the frame of the SAMUH2 project water samples were taken at a geological pore gas storage. In the course of the abandonment of a natural gas storage, deep fluids…

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Hydrogeochemical impact of Opalinus Clay system shown in metres migration length of uranium
2023
Theresa Hennig1, Michael Kühn2

Models and simulations allow a prognosis of how processes in the geosphere might occur in the future, considering physical and chemical processes. They are the only way to test future…

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Hydrogeology of arid environments
2021
Schulz, Stephan; Michelsen, Nils

Most (semi-)arid regions are characterized by limited surface water and hence rely on other sources. While unconventional resources such as desalinated seawater can be a valuable option for domestic supply…

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Hydrothermal alteration of pyrochlore from carbonatite: An experimental study
2022
Pilar Valsera Moreno1, Jasper Berndt1, Carmen Sanchez-Valle1, Marion Louvel2, Stephan Klemme1

Niobium is a critical metal used in various superconducting materials and alloys. It is predominantly mined from ores rich in pyrochlore-group minerals with the general formula A2B2O6Y (B ≥ 50%…

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Hydrothermal processes related to submarine iron ore formation: Insights from Devonian Lahn-Dill-type ores
2021
Leanne Schmitt1,5, Thomas Kirnbauer1, Thomas Angerer2, Dennis Kraemer3, Sabine Klein4,5

Numerous studies on submarine iron-rich sediments (BIF, ironstones, etc.) focus on environmental changes and ocean chemistry, however, many questions related to underlying hydrothermal processes remain unresolved. As proximal chemical sediments,…

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Hydrothermal Synthesis of Low Layer Charge Trioctahedral Smectite
2021
Yi-Yu Liu1, Nils Schewe2, Peter Thissen2, Katja Emmerich1

Smectites are widely used in (geo-) technical applications and are important components of soils. A definition gap exists between the uncharged non-swellable pyrophyllite and talc (ξ = 0) and the…

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Hyperspectral airborne and satellite data from EnMAP for mineral mapping of raw material at Gamsberg-Aggeneys area, South Africa
2023
Martin C. Schodlok1, Michaela Frei1

Hyperspectral remote sensing already is important in geoscientific research in the fields of geology, soil, exploration and mining. New hyperspectral satellite systems are already in operation (e.g. EnMAP, PRISMA and…

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Hyperspectral analysis of lacquer peel profiles as quasi-in-situ analysis for tailings exploration
2021
Wilhelm Nikonow, Dieter Rammlmair

Three lacquer peel profiles were prepared from a copper tailings deposit in Central Chile. The peels were taken from two sides at varying depths of the tailings heap. Parallel to…

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ICDP Project DOVE (Drilling Overdeepened Alpine Valleys): First results from the Basadingen Borehole
2021
Sebastian Schaller1, Flavio Anselmetti1, Marius Büchi1, Markus Fiebig2, Gerald Gabriel3, Ernst Kroemer4, Frank Preusser5, Jürgen Reitner6, Bennet Schuster5, David Tanner3, Ulrike Wielandt-Schuster7

The panalpine project „DOVE“ (Drilling Overdeepened Alpine Valleys), co-funded by the International Continental Scientific Drilling Program (ICDP), is drilling a series of overdeepened glacial troughs around the Alps that were…

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ICDP Project DOVE (Drilling Overdeepened Alpine Valleys): Seismic surveys across the sites
2021
Thomas Burschil1, Hermann Buness1, Anna-Catharina Brandt2, David C. Tanner1, Gerald Gabriel1,2, Ulrike Wielandt-Schuster3, Jürgen Reitner4

The panalpine project „DOVE“ (Drilling Overdeepened Alpine Valleys), co-funded by the International Continental Scientific Drilling Program (ICDP), is drilling a series of overdeepened glacial troughs around the Alps that were…

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Icelandia
2021
Gillian R. Foulger

The potential for the extraordinary island of Iceland to resolve seemingly intransigent problems in Earth Science has long been recognized. Alfred Wegener correctly surmised that his theory of continental drift…

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Identification of magnetic enhancement at hydrocarbon/water contacts
2021
S. Adesope Badejo1,2, Adrian Muxworthy1, Alastair Fraser1, Martin Neumaier1

Pyrolysis experiments and calculated thermostability diagrams show that iron bearing minerals (< 60nm) can be produced inorganically during oil formation in the ‘oil-kitchen’ or be precipitated in the reservoir via...

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Identification of the diagenetic sedimentary environment and hydrothermal fluid fluxes in Southern Ocean sediments (IODP Exp 382) using B, Si and Sr isotopes in interstitial waters
2021
Marcus Gutjahr1, Sonja Geilert1, Bridget Kenlee2, Klaus Wallmann1, Osamu Seki3, Ji-Hwan Hwan4, Michael E Weber5, Maureen Raymo6, Victoria L. Peck7, Trevor Williams8, Florian Scholz1, and Expedition 382 Scientists9

During IODP Expedition 382, two sites were drilled at 53.2°S at the northern edge of the Scotia Sea and three sites at 57.4°–59.4°S in the southern Scotia Sea within the…

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Identifying Li-bearing phases by µEDXRF based automated mineralogy
2022
Dieter Rammlmair1

The automated identification and quantification of Li-bearing phases in core samples and hand specimen has gained interest due to increasing industrial demand for lithium. Despite the fact, that Li cannot…

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Identifying the composition of hydrocarbon inclusions in rock salt
2023
Lisa Richter1, Michael Mertineit1, Michael Schramm1

Rock salt is one of the three potential host rocks for the final repository for high-level radioactive waste in Germany. For the site selection procedure and for safety assessments, the…

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Identifying the seasonal variability of the isotopic composition of seawater by combined stable oxygen and dual clumped isotopes in marine bivalves
2023
Jorit F. Kniest1, Amelia Davies1, Jonathan A. Todd2, Jens Fiebig1, Jacek Raddatz1

Reconstructing sea water temperatures from carbonate derived δ18OC is a widely used approach in paleo-environmental studies. However, converting δ18OC to water temperatures requires information about the isotopic composition of the…

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IEDA2: NEXT GENERATION DATA INFRASTRUCTURE FOR FAIR GEOSCIENCE SAMPLE DATA
2022
Kerstin Lehnert1, Lucia Profeta1, Sarah Ramdeen1, Peng Ji1, Gokce Ustunisik2, Roger Nielsen2, J Douglas Walker3, Karin Block4, Michael Grossberg4

IEDA2 represents a unique collaborative data infrastructure of 3 complementary data systems: EarthChem, LEPR/ traceDs (Library of Experimental Phase Relations), and the System for Earth Sample Registration (SESAR) that jointly…

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Imaging the warm lithospheric mantle in the Mediterranean-Alpine region: integrated thermochemical inversion of surface wave dispersion, heat flow and elevation data
2021
Carlos Clemente1, Javier Fullea1,2, Amr El-Sharkawy3,4, Thomas Meier3, Sergei Lebedev2, Thor Hansteen5

Here we investigate the thermal structure of the lithosphere in the Alpine-Mediterranean region. We focus on areas characterized by negative velocity anomalies according to a lithosphere-upper mantle surface-wave tomography study…

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Imbalances in dissolved elemental export fluxes disclose “hidden” Critical Zone pathways
2023
David Uhlig1, Jakob Sohrt2, Friedhelm von Blanckenburg1

Streams are integrators over all biogeochemical reactions taking place in the Critical Zone. The resulting export of dissolved elements from a watershed is commonly used to infer chemical weathering fluxes….

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Impact of erratic and constant fluid flow on epithermal ore formation via numerical modelling
2023
Maximilian Korges1, Philipp Weis2

Epithermal ore deposits are important resources for various precious (e.g. Au, Ag) and base (e.g. Cu, Pb, Zn) metals. They form within the uppermost 1.5 km of Earth’s crust by…

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Impact of Freeze-Thaw Cycles on hydraulic conductivity of Borehole Heat Exchangers
2020
Jan-Henrik Kupfernagel (1,2), Jan Christopher Hesse (2), Bastian Welsch (2), Markus Schedel (2), Ingo Sass (2) & Lutz Müller (1)

For several reasons, the inlet temperature of the heat carrier fluid in borehole heat exchangers (BHE) may temporarily fall below the freezing point of water. Consequently, freezing and thawing processes…

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Impact of Geological Conditions and Constructional Features on Indoor Radon
2020
Julija Shommet, Rein Koch & Leena Paap

Radon is quite widespread in Estonia, due to complicated geological conditions caused by the appearance of tectonic cracks, graptolitic argillite, phosphorite and also uranium in some places. Geological Survey of…

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Impact of Glaciation and Glacial Erosion on the Stress Field in Forearcs
2022
Fiene Matthies1, Armin Dielforder1, Andrea Hampel1

In the late Cenozoic, many mountain belts were glaciated and experienced enhanced glacial erosion. Glacial erosion modulates the topography of mountain belts, which alters the state of stress and can…

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Impact of Quaternary glaciations on denudation rates in the Kyrgyz Tian Shan inferred from cosmogenic 10Be and low-temperature thermochronology
2023
Anna Kudriavtseva1, Alexandru T. Codilean2, Edward R. Sobel3, Angela Landgraf4, Réka-H. Fülöp5, Atyrgul Dzhumabaeva6, Kanatbek Abdrakhmatov6, Klaus M. Wilcken7, Taylor Schildgen8, David Fink7, Toshiyuki Fujioka9, Swenja Rosenwinkel3, Silke Merchel10, Georg Rugel10

We present 10Be-derived denudation rates from modern (n = 54) and buried sediment dated to 2.0–2.7 Ma (n = 3), and exhumation rates derived from published apatite fission track (AFT;…

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Impactor Core Fragmentation During Impacts in the Late Accretion Phase
2023
Randolph Röhlen1, Kai Wünnemann2, Laetitia Allibert1, Lukas Manske1, Christian Maas3, Ulrich Hansen3

The influence of asteroid impacts during the late accretion phase on Earth’s present day composition is still not fully understood. One important question here is if the mixing of metal…

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Impacts of probabilistic geological realizations in a geothermal reservoir using numerical and statistical investigations
2021
Ali Dashti1, Maziar Gholami Korzani1, Christophe Geuzaine2, Thomas Kohl1

Achieving a (?) reliable geological model is the foremost step in all underground resource assessments. However, regarding the sparsity of data and lack of knowledge, a spectrum of solutions makes…

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Imperial Porphyry, a famous dimension stone from Egypt
2022
Martin Okrusch1, Joachim Lorenz1, Mahrous Abu El-Enen2

Imperial Porphyry is a pophyritic rock of trachyandesite to dacitec composition, providing U-Th-Pb zircon ages of 609-600 Ma (Abu El-Enen et al. 2007). It shows a spectacular purple color that…

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Implementation of the Geological Data Act (Geologiedatengesetz): A digital approach of the Geological Survey of Lower Saxony
2021
Robert Schöner, Jan Sbresny, Jörg Elbracht, Nicole Engel, Hans-Jürgen Brauner

Public access to geological data, especially to data from commercial subsurface geological investigations, was claimed for a long time in the German geoscience community. Since June 30th 2020, the Geological…

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Importance of 3d model management to enable FAIR principles for geological models
2021
Paul Gabriel, Daniel Buse, Björn Wieczoreck, Johannes Camin

A high number of 3d geological models are produced every year at mining companies, geological surveys, consulting offices and many other institutions. Many of these models are being created by…

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Improving field metadata collection using an app
2021
Linda Baldewein, Ulrike Kleeberg

High quality metadata are a pre-requisite for enabling FAIR data products. In Earth and environmental research some metadata, such as the coordinates, need to be recorded directly in field. Other…

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Improving Sample Metadata Descriptions in Earth and Environmental Sciences by using the FAIR SAMPLES Template
2023
Alexander Brauser1, Mareike Wiezcorek2, Linda Baldewein3, Simone Frenzel1, Birgit Heim2, Ulrike Kleeberg3, Tim Leefmann3, Ben Norden1, Kirsten Elger1

Physical samples are key elements in the geosciences, providing tangible evidence of geologic and environmental phenomena and often represent the source for scientific findings. The International Generic Sample Number (IGSN)…

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Improving the Interoperability of Established Geochemical Databases
2022
Marthe Klöcking1, Bärbel Sarbas1, Adrian Sturm2, Leander Kallas1, Jan Brase2, Wolfram Horstmann2, Daniel Kurzawe2, Stefan Möller-McNett1, Jens Nieschulze1, Matthias Willbold1, Gerhard Wörner1

Global geochemical datasets are increasingly used to solve ever more complex research questions exploiting sophisticated computational methods. However, standards to guide geochemical data publication and facilitate uniform access to such…

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In a while it will be a crocodile: the early evolution of Crocodylomorpha in Europe
2023
Stephan N.F. Spiekman1

Crocodylomorpha, the crocodylian stem-lineage, is the only pseudosuchian clade that survived into the Jurassic. Its earliest members, the non-crocodyliform crocodylomorphs or ‘sphenosuchians’, were terrestrial and mostly small-bodied (

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In situ-produced cosmogenic krypton in zircon: its potential for Earth surface applications
2022
Tibor János Dunai1, Steven Andrew Binnie1, Axel Gerdes2

Analysis of cosmogenic nuclides produced in surface rocks and sediments is a valuable tool for assessing the rates of processes and the timing of events that shaped the Earth surface….

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In-situ analysis of lead and multiple sulfur isotopes in southern West Greenland peridotite sulfide grains reveal evidence for Eoarchean crustal recycling
2023
Jonathan A. Lewis1, Esther M. Schwarzenbach2, Moritz Liesegang1, Julia van de Löcht3, Alexander Schwarz1, Harald Strauss4, Carsten Münker3, Minik T. Rosing5, Martin J. Whitehouse6, Heejin Jeon6, Elis Hoffmann1

Eoarchean peridotites from the area south of the Isua Supracrustal Belt (SOISB) in southern West Greenland have been found by previous studies to contain sulfur subject to mass independent fractionation…

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In-situ fractionation at the decameter scale in lower oceanic crust
2022
Dominik Mock1, David Axford Neave2, Samuel Müller3, Dieter Garbe-Schönberg3, Benoît Ildefonse4, Jürgen Koepke5, Oman Drilling Project Science Team6

As the best-preserved fragment of paleo oceanic crust on land, the Samail ophiolite (Sultanate of Oman) allows extensive field studies on fast-spread lower oceanic crust. Drill core GT1 of the…

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In-situ hydrolysis rate constants of ATP as a function of p-T-X, exploring the limits of life
2023
Christoph Moeller1, Christian Schmidt2, Denis Testemale3, Franoçois Guyot4, Maria Kokh5, Max Wilke1

In recent decades varies extremophiles were found deep in the lithosphere. Experimental studies showed that life is possible at 121 °C (Takai et al. 2008) and the gigapascal range (Sharma…

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In-situ Sb isotope variations of the orogenic Sb-Au deposits at Pezinok (Slovakia)
2022
Andreas B. Kaufmann1, Marina Lazarov2, Stefan Weyer2, Juraj Majzlan3

Orogenic Sb-Au ore bodies of deposits near Pezinok (Malé Karpaty Mts., Slovakia) are hosted in metamorphosed black shales in amphibolites. The ore bodies contain parageneses with various Sb sulfides, sulfoxides,…

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In-situ silicon isotopes in mantle wedge serpentinites – a new proxy for slab dehydration reactions
2021
Sonja Geilert1, Elmar Albers2, Daniel A. Frick3, Christian T. Hansen2, Friedhelm von Blanckenburg3,4

The Mariana forearc provides a unique natural laboratory to study slab dehydration in an active subduction zone by its deep-rooted mud volcanism. To test if mantle wedge serpentinites would record…

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In-situ sulfur and lead isotope evidence for Eoarchean crustal recycling in southern West Greenland peridotites
2022
Jonathan A. Lewis1, Esther M. Schwarzenbach1, J. Elis Hoffmann1, Moritz Liesegang1, Konstantin Huber1, Harald Strauss2, Carsten Münker3, Minik T. Rosing4, Martin J. Whitehouse5, Heejin Jeon5

Previous bulk sulfur isotope measurements of Eoarchean peridotites from south of the Isua Supracrustal Belt in southern West Greenland have revealed evidence for the presence of recycled surface material in…

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In-situ trace element and S isotope systematics in porphyry-epithermal pyrite, Limnos Island, Greece
2021
Frederik Börner1, Manuel Keith1, Jonas Bücker1, Panagiotis Voudouris2, Karsten Haase1, Reiner Klemd1, Martin Kutzschbach3

A more sustainable society with CO2 neutral energy production requires substantial amounts of trace metal(loids). However, our understanding about the fractionation processes of these elements between the epithermal and porphyry…

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Increasing the knowledge base for Deep Geothermal Energy Exploration in the Aachen-Weisweiler area, Germany, through 3D probabilistic modeling with GemPy
2021
Alexander Jüstel1,2, Florian Wellmann2, Frank Strozyk1

Deep geothermal energy is a key to lower local and global CO2 emissions caused by the burning of fossil fuels. Different initiatives aim at establishing deep geothermal energy production at…

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Indentation and transfer of deformation between different orogenic systems: the greater Adria – Pannonian – Carpathians system
2020
Liviu Ciprian Matenco & Douwe van Hinsbergen

Indentation is used to define the collisional mechanics of small plates flanked by large subduction systems creating significant thickening and lateral escape of continental units. The close spatial proximity creates…

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Indian subcontinent hydroclimate and vegetation changes during the last ~75 kyr reconstructed from terrestrial leaf wax stable isotope data obtained from IODP Site U1446
2021
Stefan Lauterbach1,2, Nils Andersen1, Thomas Blanz2, Philippe Martinez3, Ralph R. Schneider1,2

Understanding past variability and forcing of the Indian Summer Monsoon (ISM) is essential for better anticipating its behaviour under future climate change scenarios and the resulting consequences for the subsistence…

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Induced micro-seismicity monitoring in urban context using seismic arrays
2021
Rémi Fiori, Jérôme Vergne, Jean Schmittbuhl, Dimitri Zigone, Sophie Lambotte

The modification of the stress field induced by fluid injection into the ground can generate seismic motions. Their monitoring is a key point to limit the occurrence of impacting events….

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Induced Seismicity and Wind Turbine Emissions: Sources – Monitoring – Modelling – Mitigation
2021
Rietbrock, Andreas

The issue of seismicity induced by human activities, e.g. through fluid injection (waste water disposal, hydraulic fracturing), has become increasingly important with technology upscaling. In some regions of the world,…

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Industrial revolution 4.1 – Critical raw materials and their role in the shift towards renewable energy generation and e-mobility
2021
Ernst Bernhard Teigler, Stephan Peters, Torsten Gorka

Most countries are by now committed to the Paris Agreement, which deals mainly with the reduction of greenhouse gas emissions and financing thereof. Crucial pillars driving this greenhouse gas diminution…

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Inferring deep soil moisture variations in Central and Southern Europe using seismic method
2023
Yang Lu1, Qing-Yu Wang2, Götz Bokelmann1

Soil moisture is a key metric to assess soil health. Water held in the shallow subsurface between soil particles enables various biogeochemical and hydrological processes indispensable to soil functions. Potential…

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Influence of initial preferred orientations on strain localisation and fold patterns in non-linear viscous anisotropic materials
2020
Tamara de Riese (1), Paul D. Bons, Enrique Gomez-Rivas (2), Albert Griera (3), Maria-Gema Llorens (4) & Ilka Weikusat (5)

Deformation localisation can lead to a variety of structures, such as shear zones and bands that range from grain to crustal scale, from discrete zones to anastomosing networks, and shear…

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Influence of pH and Na-concentration on facilitated and hampered transport of metoprolol by montmorillonite colloids in water-saturated quartz sand
2023
Joshua Sawall1, Wiebke Warner2, Tobias Licha2, Ferry Schiperski1

The role of clay colloids in facilitating or hampering the transport of cationic contaminants, such as heavy metal cations or radiogenic nuclides, in groundwater is well established. However, it is…

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Influence of Quaternary glaciations on subsurface temperatures and pressures in NE onshore Netherlands
2021
Sebastian Amberg1, Victoria Sachse1, Stefan Back2, Ralf Littke1

Several glacial ice advances shaped the present-day morphology of central Europe during the Quaternary. Two Pleistocene glaciations, the Elsterian and the Saalian stages, advanced as far as the north-eastern part…

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Influence of Quaternary glaciations on subsurface temperatures, pore pressures, rock properties and petroleum systems in the onshore northeastern Netherlands
2022
Sebastian Amberg1, Victoria Sachse2, Ralf Littke2, Stefan Back3

Pleistocene ice ages had a profound influence on the subsurface, in parts, until the present day. Ice masses during glacial advances partly covered onshore Netherlands during two glacial periods, the…

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Influences of slab breakoff on foreland basin architecture: inferences from stratigraphic forward modelling
2023
Lucas H.J. Eskens1, Nevena Andrić-Tomašević1, Andrea Piccolo2, Marcel Thielmann2, Barbara Claussmann3, Mostfa Lejri4

One of the major tectonostratigraphic characteristics of foreland basins is the transition from deep marine (i.e. flysch) to terrestrial (i.e. molasse) depositional settings. Several mechanisms have been proposed to influence…

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Inherited structures and their impact on rift evolution: A numerical study of the South China Sea
2023
Kai Li1, Sascha Brune2, Zoltán Erdős3, Derek Neuharth4, Geoffroy Mohn5, Anne Glerum3

The South China Sea experienced Cenozoic rifting in a region that was previously part of a Mesozoic Andean-type orogeny, which presumably had resulted in structural, compositional, and thermal inheritance. Recent…

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Inherited Tectonics and the Control on Late Devonian Deposition in the Intracratonic Williston Basin, USA and Canada
2020
Michael H. Hofmann

The Williston Basin is an intracratonic basin in Canada and the USA, located atop the structurally complex suture zone between the Archean Superior province to the east and the Archean…

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Injection strategy development for CO2 storage in a multi-trap storage site considering hydrodynamic and geomechanical restrictions
2023
Firdovsi Gasanzade1, Hendrawan Diandaru Bayu Aji1, Frank Wuttke1, Sebastian Bauer1

Geological storage of CO2 contributes to mitigating climate change, but successful storage depends on many subsurface hydrodynamic and geomechanical factors. This study outlines the development of a CO2 injection strategy…

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Insight into formation of hydrothermal ore deposits using a hydrothermal autoclave and X-ray absorption spectroscopy
2022
Manuela Borchert1, Maria Kokh2, Max Wilke3, Marion Louvel4, Pilar Valsera Moreno5, Rami Al Abed3, Wolfgang Morgenroth3, Christian Schmidt6, Denis Testemale7, Edmund Welter8, Stephan Klemme5

Hydrothermal fluids play an important role during the formation of most economically explored ore deposits. While cycling through the crust these supercritical fluids efficiently dissolve and transport metals from the…

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Insights from surface analogues of the Odenwald into the structural architecture of crystalline units in the Northern Upper Rhine Graben
2021
Claire Bossennec1, Matthis Frey1, Lukas Seib1, Jeroen van der Vaart1, Kristian Bär1, Ingo Sass1,2

The Upper Rhine Graben (URG) is a target area for deep geothermal and heat storage projects, as petrophysical and hydraulic properties of the faulted crystalline basement rocks, and the temperature…

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Insights into magmatic evolution in the southern Central European Volcanic Province: Petrology and Geochronology
2022
Thomas Binder1, Michael A. W. Marks1, Benjamin F. Walter2, Jens Grimmer2, Thomas Wenzel1, Gregor Markl1

Based on U-Pb geochronology, strongly SiO2-undersaturated foidites and melilitites in the southern Central European Volcanic Province (SW Germany, E France) were shown to have formed during two distinct periods in…

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Insights into multi-stage fluid-rock-interaction processes in HP metamorphic ocean floor basalts from the Tianshan, NW China
2023
Sophie Scherzer1, Esther M. Schwarzenbach1, Timm John2, Maria Rosa Scicchitano3, Besim Dragovic4, Mirjam Kiczka5

Slab fluids, which are released by the subducting oceanic lithosphere through compaction and dehydration processes, are an essential mechanism for the transfer of volatiles from the slab to the mantle…

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Insights Into the Edifice Stability of Anak-Krakatau (Sunda Strait, Indonesia) Before the Lateral Collapse in December 2018 from Direct Shear Experiments and Finite-Element Models
2023
Fiene Matthies1, Morelia Urlaub1, Matt Ikari2

The lateral collapse of oceanic volcanoes poses a high risk for the population living in coastal areas since the sudden displacement of large amount of material can trigger tsunami waves…

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INSIGHTS INTO THE GENESIS OF APOLLO LUNAR SOILS FROM CADMIUM STABLE ISOTOPES
2022
Wafa Abouchami1, Frank Wombacher2, Stephen Galer3

We present Cd isotope data on Apollo 12 (A12) mare soils and Apollo 16 (A16) highland soils to understand the volatile element distribution and processes of mass-dependent stable isotope fractionation…

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Insights into the skeletal growth of massive corals from the central Belize Barrier Reef (Central America): Results from high-resolution skeletal density variations in Orbicella faveolata
2022
Simon Felix Zoppe1, Michael Deveaux2, Eberhard Gischler1

Massive reef-forming corals (Scleractinia) are biological and palaeoclimatological archives, based on their skeletal growth chronology that is characterized by annual density bandings (analogue to dendrochronology). A limitation in coral sclerochronology…

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Insights into triple oxygen isotope variations in Precambrian carbonates from CO2 – O2 equilibration
2022
Oliver Jäger1, Jakub Surma2, Fabian Zahnow1, Katharina Schier3, Michael Bau3, Andreas Pack1

Small mass-dependent variations in 17O/16O and 18O/16O, expressed as Δ‘17O (=ln(δ17O+1) – ln(δ18O+1)*λref), in carbonates provide insight into temperature dependent carbonate-water equilibration. Uncertainties between 10-15 per meg are required to…

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Insights on the evolution of the Himalayas and Tibet from thermomechanical modelling: the role of long-term convergence
2020
Ben S. Knight, Fabio A. Capitanio & Roberto F. Weinberg

The collision of India and Eurasia has resulted in a broad range of structures, from the Himalayan chain to the Tibetan Plateau. The convergence history is characterised by velocities of…

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Integrated 3D gravity and geological modelling in the Subhercynian Basin (Germany) – A modelling strategy for the enhanced study of the basins sedimentary and crustal setting
2021
Christian Olaf Mueller, Jacob Waechter, Alexander Malz

3D geological modelling in highly complex areas with sparse or ambiguous information is affected be conceptual uncertainty, which can be significantly reduced by the integration of gravity data. However, gravity…

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Integrated geological and gravity modelling to improve 3D model harmonization – Methods and benefits for the Saxony-Anhalt/Brandenburg cross-border region (North German Basin)
2020
Christian Olaf Mueller, Jacob Waechter & Alexander Malz

Three-dimensional geological modelling is usually constraint by seismic and borehole data. However, in geological settings of high complexity and sparse, restricted or ambiguous available information additional geoscientific data and methods…

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Integrated stratigraphy of the lower Danubian Cretaceous Group (lower Upper Cretaceous, southern Germany)
2023
Niklas Metzner1, Birgit Niebuhr1, Thomas Pürner2, Markus Wilmsen1

The Danubian Cretaceous Group (DCG; Bavaria, SE-Germany) represents the deposits of one of the most pronounced sea-level rises in the Phanerozoic. Integrated stratigraphy (litho-, sequence-, and chemostratigraphy) and (micro-) facies…

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Integrated stratigraphy, facies patterns and palaeogeography of the lower Elbtal Group: a re-evaluation of the Cenomanian transgression in Saxony, Germany
2023
Markus Wilmsen1, Birgit Niebuhr1

Until very recently, it was generally assumed that the marine flooding of the Saxonian Cretaceous Basin (SCB) was largely related to the naviculare Transgression of the early Late Cenomanian. However,…

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Integrating geological data of 100 years to model an area-wide map of the Quaternary base of Brandenburg
2023
Sophia Rütters1

Mapping the Quaternary base is required for various processes. Accordingly, it serves as a necessary horizon for set-up of 3D geological models of the subsurface, as well as a database…

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Integration aspects of ATES in urban district heating networks
2023
Nikolai Strodel1, Tobias Zimmermann1, Henrik Pieper1

In progressively decarbonized district heating systems with high shares of renewable energies, seasonal large-scale heat storage systems are a central component for overcoming the seasonal offset between heat generation and…

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Interactive web-based platform for efficient water management in the lithium mining industry based on FEFLOW and MIKE Operations
2023
Robin Dufour1, Ferdinand Flechtner1

Lithium mining operations based on direct lithium extraction from brines often use groundwater models such as FEFLOW or MODFLOW for their resource estimation, especially as the amount of extractable lithium…

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Interaktives Grundwassermodell im Bereich Wassermanagement
2023
Ferdinand Flechtner1, Katja Eulitz1

In vielen Regionen zeigt die Auswertung der Grundwasserstandsentwicklung, dass ein Rückgang der Grundwasserstände zu verzeichnen ist (z.B. NLWKN, 2020). Jedoch steigen gleichzeitig der Wasserbedarf und die Anzahl der Wasserrechtsanträge, vor…

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Interim report about geological survey in the Monticiano-Roccastrada metamorphic core complex (MRMCC, S-Tuscany, Italy) with considerations about its stratigraphic and tectonic development
2022
Hubert Engelbrecht1

The study area is part of the Mid Tuscan Ridge: a linear belt of metamorphic core complexes, exhumed during M-L-Tertiary times. They separate the N-Apenninic main belt from the Tuscan…

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Internal Architecture of a carbonate ramp exposed to high amplitude sea-level fluctuations: Evidence from the NW shelf of Australia
2021
Maximilian Hallenberger1, Lars Reuning2, Stefan Back1, Stephen J. Gallagher3, Hokuto Iwatani4, Katja Lindhorst2

The North West Shelf of Australia represents an extensive tropical carbonate ramp and forms an important template for the interpretation of similar systems found within the sedimentary record. Yet, little…

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Internal fluid-mineral oxygen exchange: equilibrium clumped isotope behaviour in the most extreme rock-buffered systems?
2022
Philip Tauxe Staudigel1, Jeroen van der Lubbe2, Mattia Tagliavento1, Amelia Davies1, Miguel Bernecker1, Cas Nooitgedacht2, Jens Fiebig1

Chemical exchange between carbonate and internal water populations represents the lowest possible water/rock fraction in natural materials: with molar ratios possibly lower than one percent. Despite their low abundance, internal…

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International Earth Science Olympiad (IESO) 2022: German National Team Field Investigation at the Leibniz Institute for Baltic Sea Research (IOW)
2022
Sven Hille1, Sylke Hlawatsch2, Marion Kanwischer1, Una Reck1

The International Earth Science Olympiad (IESO) is an annual competion for secondary school students. It provides them to compete not only individually, but also in team quests, such as Earth…

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Interplay of deposition and soil formation in an Upper Triassic playa landscape
2020
Wolfgang Schirmer

The Upper Triassic Burgsandstein (Löwenstein Formation) in Franconia presents a fossil desertlike playa landscape with episodic supply of clastic material. It occurs as sheet wash and river deposits. A tight…

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Intragranular halogen (F, Cl, Br), S and δ37Cl variability as determined by SIMS in sodalite and eudialyte from the Ilímaussaq intrusion, South Greenland
2021
Hans G. M. Eggenkamp1, Michael A. W. Marks1, Thomas Ludwig2, Gregor Markl1

Halogen (F, Cl and Br), S and δ37Cl variations within grains of Cl-rich minerals sodalite and eudialyte from peralkaline rocks of the Ilímaussaq intrusion were determined using Secondary Ion Mass…

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Introducing the Disaster Risk Platform
2023
َAbbas Kangi1, Jafar Rahnamarad2

The Disaster Risk Platform project is a humanitarian program aimed at digital disaster education based on articles published in scientific journals. The DRP project is a user-centered program and the…

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Inverse geochemical modelling demonstrates how weathering and ion surface exchange control groundwater chemistry in the Pra Basin (Ghana)
2021
Evans Manu1,2, Michael Kühn1,2, Thomas Kempka1,2, Marco De Lucia1

Effective implementation of sustainable water resources management is one of the daunting tasks in most parts of the world. The Pra Basin has a high economic importance, hosting most of…

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Inverse modelling of transport distance to reduce ambiguities of microbial and chemical source tracking in karst catchments
2021
Johannes Zirlewagen1, Ferry Schiperski1, Tobias Licha2, Traugott Scheytt3

The identification of contamination sources is vital for water protection, especially in highly vulnerable karst aquifers. Contamination sources might be distinguished by host-specific DNA markers of bacteria (Microbial Source Tracking,…

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Inversion of an open-source forward stratigraphic model: a case study from the Bengal Fan
2023
James M. Lovell-Kennedy1, Peter Burgess1

Inverting forward models to constrain output against data is critical for predicting and understanding sedimentary systems. We present an open-source workflow using SciPy functions to invert a Python Badlands model…

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Inversion of Borehole Temperature Data Using Surrogate Model
2021
Jia WANG, Fabian NITSCHKE, Emmanuel GAUCHER, Thomas KOHL

The undisturbed or static formation temperature (SFT) is a key objective of the borehole measurements analysis. Conventional methods to estimate SFT require borehole temperature data measured during thermal recovery periods….

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Investigating material culture (dis)continuities of Iron Age insular communities of Eastern Adriatic at the time of Greek settlement
2023
Branimir Segvic1, Emily Doyle1, Marina Ugarkovic2

The Adriatic seascape, as the Mediterranean’s northernmost extension, has long been an important crossroad of cultural exchanges between the East and the West. Here, connectivity and insularity served to link…

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Investigating Nitrate Pollution Sources and NaturalBackground in Groundwater of the Densu Basin: A Model-based Approach
2021
George Yamoah Afrifa1, Larry-pax Chegbeleh1, Patrick Asamoah Sakyi1, Mark Sandow Yidana1, Yvonne Sena Akosua Loh1, Theophilus Ansah-Narh2, Evans Manu3,4,5

Nitrate is one of the dominant chemical pollutants of groundwater, and there is a need to mitigate groundwater pollution in rural, urban and industrial terrains in an aquifer system. The…

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Investigating seasonal mobility of Irish Giant Deer Megaloceros giganteus (Blumenbach, 1799) through intra-tooth multi-isotope analysis
2020
David S. Douw (1) & Tom J. Giltaij (1,2)

The Giant Deer Megaloceros giganteus (Blumenbach, 1799) is an icon of the Ice Age due to their famous antlers, although there has been little focus on isotopic analysis of these…

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Investigating Te and other volatile trace elements in sediments as proxies for flood basalt volcanism
2022
Marcel Regelous1, Thierry Adatte2, Nils Baumann1, Alicia Fantasia3, Steve Grasby4, Anette Regelous1

Linking the timing and eruption rate of flood basalt volcanism with the sedimentary record is critical to understanding how large volcanic events cause environmental change during periods of mass extinction….

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Investigating the impact of differential biogenic carbonate production on carbonate system geometries through stratigraphic forward modelling: The Llucmajor example.
2023
Timothy Oluwatobi Tella1, Gerd Winterleitner2, Maria Mutti1

The geometry of carbonate systems reflects the interaction of several factors. Although efforts have been made at investigating the controls on biogenic carbonate system evolution, the impact of the interaction…

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Investigating the late accretion history and convective homogenization of the terrestrial mantle – new perspectives from coupled Ru isotope and HSE abundance data
2022
Jonas Tusch1, Mario Fischer-Gödde1, J. Elis Hoffmann2, Carina Gerritzen3, Wolfgang Maier4, Martin Van Kranendonk5, Hugh Smithies6, Harry Becker2, Carsten Münker1

The relative and absolute abundances of highly siderophile elements (HSE) present in the modern terrestrial mantle has been set during late accretion of meteoritic materials that the Earth received after…

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Investigation of chalcophile element fractionation processes in the oceanic crust by trace element analysis of magmatic sulphides
2022
Wiebke Schäfer1, Manuel Keith1, Marcel Regelous1, Francois Holtz2, Reiner Klemd1, Martin Kutzschbach3

The fractionation of chalcophile trace elements during magmatic processes is strongly controlled by the segregation of immiscible sulphide liquids, which is a common feature in convergent and divergent plate margins…

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IRIS Online (Interactive Raw Materials Information System) of Austria
2020
Piotr Lipiarski (1), Leopold Weber (2), Albert Schedl (1) & Heinz Reitner (1),

The new Austrian digital Interactive Raw Materials Information System IRIS Online allows to display geological, tectonical, geochemical, aerogeophysical maps, maps of metamorphic events, mineral deposits / occurrences a.s.o. simultaneously. The…

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Is it possible to date baddeleyite (ZrO2) with the same precision as zircon (ZrSiO4) with CA-ID-TIMS?
2022
Daria Voropaeva1, Marion Tichomirowa1

Zircon (ZrSiO4) is the most used mineral in geochronology. Recent methods let to date zircon with precision of 1-2% error (Schaltegger et al., 2015) by SHRIMP/SIMS (high-resolution ion microprobe/secondary ion…

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Is there an interdisciplinarity crisis in the Geosciences?
2022
Dominic Hildebrandt1

Modern Geosciences profit substantially from interdisciplinary collaboration across the natural sciences and even beyond. Some recent advances have only become possible through these efforts. Consequently, interdisciplinarity is particularly relevant for…

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Isotope fractionation mechanisms involved in carbonate formation revealed by high-precision triple oxygen isotope analyses
2022
David Bajnai1, Oliver Jäger1, Daniel Herwartz2, Andreas Pack1

The oxygen (δ18O) and clumped (∆47) isotope composition of carbonates are widely used proxies for palaeotemperature. However, Earth surface carbonates are rarely formed in isotope equilibrium but often show oxygen…

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Isotope hydrogeochemistry and physico-chemistry of Lago Enriquillo (Dominican Republic) and its tributaries
2023
Christopher Berndt1, Michael Ernst Böttcher2, Torsten Haberzettl1, Lilly Biedermann1, Berenice Matias Marte de Reyes3, Edwin Garcia Cocco3, Claudia Wrozyna1

Tropical cyclones (TCs) such as hurricanes are amongst the most devastating natural disasters of the modern world causing massive humanitarian, ecological, and economic damage every year. A better understanding of…

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Isotopic compositions and functional chemistry of meteoritic organic matter revealed by high spatial resolution mass spectrometry – synchrotron spectroscopy – electron microscopy techniques
2022
Christian Vollmer1, Jan Leitner2, Charlotte L. Bays3, Ashley J. King3, Paul F. Schofield3, Tohru Araki4, Aleksander B. Mosberg5, Demie Kepaptsoglou5, Quentin M. Ramasse5, Peter Hoppe6

The isotopic and chemical properties of organic matter (OM) in extraterrestrial samples record a combination of presolar, nebular, parent-body, and terrestrial processes, which can be disentangled by high-spatial resolution studies…

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Isotopic fractionation during planetary-scale processes
2022
Remco C Hin1

Mass-dependent fractionation of isotopes has rapidly grown as a tool to study a large variety of geological/-chemical processes since the advent of mass spectrometry. Traditionally, the isotopes of relatively low…

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Isotopically anomalous metabolic oxygen in marine vertebrates as physiology and atmospheric proxy
2022
Dingsu Feng1, Thomas Tütken2, Niklas Löffler3, Gert Tröster4, Andreas Pack1

Pack et al. (2013) showed that the triple oxygen isotope composition of bioapatite along with a mass balance model of land-living mammals can be used as proxy for the 17O…

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Joining up the Dots: Regional Geology Insights from the Arabian Plate and the Black Sea
2021
Mike Simmons

One of the many attractions of geoscience is the necessity to make predictions. That it is to say, to take observations made at a certain locality and extrapolate the inferences…

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Key role of Fe-carbonates in natural H2 production? Evidence from the spatial link between barren ground depressions, gold deposit and H2 emissions
2023
Benjamin Malvoisin1, Fabrice Brunet1

Even if measurements of high H2 concentrations in continental rocks have significantly increased in the last decade, the origin of H2 remains enigmatic in this context. Here we show that…

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Kinematic analysis of a left step over along the dextral Kallar Kahar Fault, Salt Range, Pakistan.
2023
Nowrad Ali1, Azmatullah Orakzai2, Asghar Khan2

The Kallar Kahar area falls in the sub-Himalayas. The structural geometry of the area has been assessed using geological mapping and structural analysis. At the surface the study area comprises…

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Kinematics and rifting processes of the Liguro-Provençal Basin, Western Mediterranean
2023
Alex Jensen1, Eline Le Breton1, Sascha Brune2, Anke Dannowski3, Dietrich Lange3, Louisa Murray-Bergquist3, Heidrun Kopp3

The Liguro-Provençal Basin, situated at the junction of the Northern Apennines and the Western Alps, formed due to the rollback subduction of the Adriatic-African plate underneath Europe and the subsequent…

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Kinetic Deflection of an asteroid: Impact Simulations of the DART impact in a heterogeneous target
2023
Robert Luther1, Mallory DeCoster2, Dawn M. Graninger2, Emma S. G. Rainey2, Angela Stickle2, Sebastian Baldauf1, Kai Wünnemann3

On 26th of September 2022, NASA’s DART spacecraft impacted the secondary of the Didymos system, Dimorphos [1]. Its impact shortened the orbit of Dimorphos by 33 minutes to 11.37 h…

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Kinetic zinc isotope fractionation in olivine phenocrysts records magma evolution history of intra-plate basalts
2022
Chun Yang1, Sheng-Ao Liu2

Zinc isotope systematics of basaltic magmas have been widely used as novel proxies for terrestrial mantle heterogeneity induced by recycled crustal materials [1-2]. The influence of mineral-melt isotope disequilibrium during…

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KONATES – Design and pilot plant operation for the use of contaminated aquifers for energy management with ATES plants
2023
Diana Altendorf1, Ahmed Abdelsamad1, Matteo Bauckholt1, Anett Georgi1, Nina-Sophie Keller1, Ralf Köber2, Katrin Mackenzie1, Carsten Vogt1, Ulrike Werban1, Holger Weiß1

A pilot plant for an aquifer thermal energy storage (ATES) system in a contaminated aquifer is under construction at the scientific park of Leipzig. The research at this pilot plant…

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LabInfrastructure@Geo.X – A Laboratory Infrastructure Search Portal for the Geo.X Network
2023
Manja Luzi-Helbing1, Marc Hanisch2, Hannes Fuchs2, Hildegard Gödde1, Lutz Hecht3

LI@Geo.X is a search portal for the laboratory infrastructure in the Geo.X network, jointly developed by the network partners. It supports collaborations and joint projects by providing information on instruments,…

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Lake Runstedt – a pit lake for treating polluted water and protecting groundwater
2023
Martin Schultze1, Tina Endrulat2, Anne Weber2, Andreas Schroeter3, Petra Wolf4

Lake Runstedt (near Merseburg, Germany; area 2.3 km², volume 53×106 m³, max. depth 32.8 m) is an artificial lake resulting from lignite mining. The lower part of the former mine…

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Landscape processes and erosion in the Ordos Loess Plateau, central China: topographic response to the Cenozoic uplift of the Tibetan Plateau and climate change
2023
Mengyue Duan1, Franz Neubauer2, Jörg Robl2, Xiaohu Zhou3

The Cenozoic uplift of the Tibetan Plateau leads to eastward lateral extrusion of fault-bounded blocks, which caused large surface uplift. To the northeast of the Tibetan Plateau, the development of…

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Landslide models and Dam sites visualised in VR
2020
Hans-Balder Havenith

For multiple landslide and two dam sites in Central Asia and SE Europe we have completed geophysical surveys (partly) complemented by borehole drilling. These data were first processed and then…

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Landslide susceptibility mapping on the country scale with data mining techniques in Armenia
2020
Agnieszka Ledworowska (1), Anika Braun (1), Hans-Balder Havenith (2) & Tomás Manuel Fernández-Steeger (1)

Armenia is a country strongly affected by landslides, but still not enough research has been done on landslide susceptibility in this area. Therefore, the main goal of the study was…

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Large hydraulic diffusivity of a single fault
2021
Qinglin Deng1, Guido Blöcher2, Jean Schmittbuhl1, Mauro Cacace2

We provided an approach to estimate hydraulic diffusivity of a single fault by solving the linear diffusion equation in a partly open rough fracture under drained conditions when applying small…

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Large regional structures from puzzle pieces – the hidden Triassic rift on the western flank of the Eichsfeld-Altmark-Swell
2021
Alexander Malz1, Jonas Kley2, Heinz-Gerd Röhling3

The incorporation of regional geologic knowledge is essential to solve multiple geological questions in any defined research area meaning that small-scale observations must fit with general regional interpretations as well…

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Large Scale Experiments on the Tightness of Boreholes under Cyclic Loading
2021
Marcel Schulz, Birgit Müller, Frank Schilling

The transition from nuclear and fossil energy to renewable energy leads to higher fluctuations in energy supply – but storage for power is negligible so far. In underground gas storages…

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Large Scale Experiments sion
2021
Jan Dilewski1, Rouwen Lehné2, Ingo Sass1, Rafael Schäffer1

Inspired by the new Radiation Protection Act (2013/59/EURATOM), which entered into force at the end of 2018, the city of Bad Nauheim in southern Hesse has been chosen for measurements…

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Large-scale quantification
2021
Marthe Klöcking1, Bärbel Sarbas2, Wolfram Horstmann3, Stefan Möller-McNett1, Jens Nieschulze4, Caroline Sporleder5, Matthias Willbold1, Gerhard Wörner1

GEOROC is a leading open-access source of geochemical and isotopic datasets and has facilitated thousands of peer-reviewed publications and new avenues of geochemical research. The new Digital Geochemistry Infrastructure (DIGIS)…

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Large-scale quantification of Li in spodumene pegmatite using Laser Induced Breakdown Spectroscopy
2021
Simon Müller, Jeannet Meima

Spatially detailed surface analysis of geological samples and drill cores offers insight into element and mineral distributions on large scales, an important information in ore exploration processes. Laser Induced Breakdown…

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Late Anisian microbe-metazoan build-ups (“stromatolites”) in the Germanic Basin – aftermath of the Permian – Triassic Crisis
2021
Yu Pei1, Jan-Peter Duda2, Jan Schönig3, Cui Luo4, Joachim Reitner1,5

The so-called Permian – Triassic mass extinction was followed by a prolonged period of ecological recovery that lasted until the Middle Triassic. Triassic stromatolites from the Germanic Basin seem to…

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Late Anisian microbe-metazoan build-ups (“stromatolites”) in the Germanic Basin – aftermath of the Permian – Triassic Crisis
2021
Yu Pei1, Jan-Peter Duda2, Jan Schönig3, Cui Luo4, Joachim Reitner1,5

The so-called Permian – Triassic mass extinction was followed by a prolonged period of ecological recovery that lasted until the Middle Triassic. Triassic stromatolites from the Germanic Basin seem to…

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Late Anisian microbe-metazoan build-ups in the Germanic Basin – aftermath of the Permian – Triassic crisis
2021
Yu Pei1, Jan-Peter Duda2, Jan Schönig3, Cui Luo4, Joachim Reitner1,5

The so-called Permian – Triassic mass extinction was followed by a prolonged period of ecological recovery that lasted until the Middle Triassic. Triassic stromatolites from the Germanic Basin seem to…

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Late Cretaceous-Tertiary tectonic inversion of northeastern Asian continental margin: insight from the low temperature thermochronology in NE China
2020
Jianping Zhou (1), Dunkl Dunkl Istvan (1), Yongjiang Liu (2,3), Weimin Li (4) & Hilmar von Eynatten (1)

The Cretaceous Songliao basin in Northeast China and several strongly inverted, smaller satellite basin remnants east of it represent one of the world largest lacustrine basin system. While the burial…

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Late Mesozoic to Palaeogene cooling history of the Thuringian Forest basement high and its southern periphery (Central Germany) revealed by fission-track dating
2023
Kamil Ustaszewski1, Manuel Thieme1, Fabian Jähne-Klingberg2

We present new results from a fission track (FT) dating approach on zircon and apatite from the Thuringian Forest, a prominent fault-bounded basement high in central Germany, and its southwestern…

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Late Pleistocene chronostratigraphy of infills and incisions based on 3D-modelling of a local watershed sediment sink structure (Borisoglebsk Upland, Central European Russia)
2021
Ekaterina V. Garankina1,2, Iuliia V. Shishkina2, Ilya G. Shorkunov2, Vladimir R. Belyaev1,2, Nikita S. Mergelov2

3D-modelling based on a series of geological exposures and cores up to 7 m deep allowed to reveal the structure, stratigraphy and chronology of a local sediment sink on the…

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Late Quaternary deformation, strain partitioning, and growth of the fold and thrust belt of The Western Himalaya
2023
Saptarshi Dey1, Rasmus C. Thiede2, Kordt Jonas2, Bodo Bookhagen3, Ramon Arrowsmith4, Naveen Chauhan5

Constraining millennial-scale fault slip rates and understanding the related structural architecture in active orogenic wedges might provide important assessment of future seismic risk evaluations. An increasing number of Holocene and…

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Late Triassic to Early Jurassic carbon isotope stratigraphy and organo-facies evolution in a basin-margin transect of the North German Basin
2023
Wolfgang Ruebsam1, Matthias Franz2, Karsten Obst3, Jörg Ansorge4, Lorenz Schwark1

Profound climatic and environmental changes at variable timescales are documented throughout the Late Triassic to Early Jurassic (c. 210-170 Ma) and were linked to the emplacement of large igneous provinces,…

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Late veneer on the terrestrial planets: dynamics perspective
2023
Alessandro Morbidelli1, David Nesvorny2, Zhu Meng-Hua3

The origin of the late veneer of the terrestrial planets and of the lunar bombardment has been the subject of numerous studies in the field of cosmochemistry and in the…

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Latest Achievements in Scientific Ocean and Continental Drilling
2021
Egger, Lisa Marie (1); Böttner, Christoph (2); Crutchley, Gareth (3)

National and international Earth science programs are utilizing Scientific Drilling as a critical tool to understand climate and environmental variability, natural hazards such as earthquakes and volcanic eruptions, natural resources,…

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Latest Achievements with drill core scanning based on Laser Induced Breakdown Spectroscopy applied to 6 meter of drill core through Merensky Reef, Bushveld Complex, South Africa
2021
Jeannet Meima1, Dieter Rammlmair1, Malte Junge2

A 6-meter drill core from Merensky Reef, Bushveld Complex, South Africa, was scanned in detail with a drill core scanner based on Laser Induced Breakdown Spectroscopy. The purpose of the…

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Latest analytical developments of the SwissSIMS Lausanne
2022
Johanna Marin Carbonne1, Anne-Sophie Bouvier1, Elias Bloch1, Daniela Rubatto2

The SwissSIMS is a national facility equipped with a Cameca 1280 HR2 installed at the University of Lausanne, which is open to all scientists. Here we present the latest analytical…

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Latest results from the hybrid micro-gravity monitoring of the Theistareykir geothermal field (North Iceland)
2021
Nolwenn Portier1, Jacques Hinderer1, Florian Schäfer2, Philippe Jousset2, Kemal Erbas2, Vincent Drouin3, Siqi Li4, Freysteinn Sigmundsson4, Ingwar Magnusson3, Gylfi Pall Hersir3, Kristjan Agustsson3, Agrismur Gudmundsson5, Egill Juliusson5, Hreinn Hjartasson5, Anette Mortensen5, Jean-Daniel Bernard6

Geothermal energy represents around 30% of the produced electricity in Iceland with a cumulative capacity being equal to 755 MWe (Ragnarsson et al., 2020). In particular, the Theistareykir geothermal plant,…

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Leaf-wax n-alkane composition of an extinct Middle to Late Jurassic plant assemblage dominated by bennettitaleans
2023
Lisa von Nolting1, Alexander Rohrmann2, Christian Pott3, Baoyu Jiang4, Manja Hethke5

Leaf-wax n-alkane concentrations and average chain lengths (ACL) significantly vary among extant gymnosperm groups. When investigating deep-time archives, further plant groups need to be considered that since went extinct. Also,…

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Legal framework for CCS – Overview and first lessons learnt
2023
Johanna Kemper1

The advancement of CCS-techniques is a significant tool to mitigate climate change and achieve net zero emissions. On European Level, the CCS-Directive (2009/31/EG) provides for a legal framework for, i.a.,…

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Let us synchronize watches
2023
Jonas Grutzpalk1

“The mind seemed to grow giddy by looking so far into the abyss of time,“ noted John Playfair after having been introduced to geology by James Hutton. Deep time is…

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Levelized costs and economic impacts of geothermal district heating networks: a decision tree analysis
2021
Astu Sam Pratiwi, Evelina Trutnevyte

Geothermal district heating networks are among the key options to decarbonize the heating sector in the State of Geneva in Switzerland. But the development of geothermal district heating requires high…

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LGRBwissen – the new geoscientific portal for Baden-Württemberg
2021
Isabel Rupf, Frank Baumann

Since 2019, the LGRBwissen internet portal provides freely accessible and reviewed geoscientific information for the state of Baden-Württemberg. With LGRBwissen, the State Office for Geology, Natural Resources and Mining (LGRB)…

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LI@Geo.X – A Laboratory Infrastructure Search Portal for the Geo.X Network
2021
Manja Luzi-Helbing1,2, Christopher Hamann3, Kirsten Elger2, Damian Ulbricht2, Florian Ott2, Marc Hanisch2, Nils Brinckmann2, Hannes Fuchs2, Hildegard Gödde1,2, Roland Bertelmann4, Lutz Hecht3,5

Geo.X is the research network for geosciences in the Berlin and Potsdam metropolitan region and integrates five universities and six extramural research institutions. Our partners are committed to a FAIR…

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Light at the end of the well: A compact and low-cost DIY water level meter
2021
Nils Michelsen

Goundwater level data are a crucial element of water resources assessments. Corresponding measurements are often carried out with electric water level tapes, which are – despite their simple concept –…

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Limits and CO2 equilibration of near-coast alkalinity enhancement
2023
Jing He1, Michael Tyka2

In this work we study critical questions which determine the scale and viability of ocean alkalinity enhancement (OAE): Which coastal locations are able to sustain a large flux of alkalinity…

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Linking atmospheric and marine redox evolution during the Great Oxidation Event — Isotopic insights from the Duitschland and Rooihoogte formations (South Africa)
2022
Julius Havsteen1, Ilka Kleinhanns1, Benjamin Eickmann2, Carolina Rosca1, Markus Gogouvitis1, Nic Beukes3, Gareth Izon4, Ronny Schoenberg5

The correlative Duitschland and Rooihoogte formations (Transvaal Basin) record a critical juncture in Earth’s history since both formations archive a pronounced shift from mass-independent fractionation of sulfur (MIF-S) to mass-dependant…

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Linking Coseismic Groundwater Elevation Changes to Stress and Pore Pressure Evolution through 2D Hydro-Mechanical Coupled Dynamic Distinct Element Modelling
2023
Anne Elizabeth Strader1, Jian Zhou2, Stefan Bredemeyer1, Jeoung Seok Yoon1, Soo-Gin Kim3, Hyun-Jin Cho3, Jae-Yeol Cheong3, Jeong-Hwan Lee3

Coseismic responses in groundwater level have often been observed following earthquakes worldwide. These responses have often been attributed to coseismic static and dynamic changes in volumetric strain and pore pressure,…

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Linking Laser-Ablation ICP-MS analysis and sulfide textures in identifying gold remobilization and enrichment processes in modern seafloor massive sulfides, Kolumbo arc volcano, Greece
2021
Stephanos P. Kilias1, Evangelia Zygouri1, Nikolaos Zegkinoglou1, Manuel Keith2, Thomas Zack3, Daniel J. Smith4, Paraskevi Nomikou1, Paraskevi Polymenakou5

Target settings to secure sustainable access to raw materials include seafloor massive sulphide (SMS) resources. Gold-rich SMS deposits, are often the result of complex interplay of multiple Au enrichment events….

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Linking source to sink in active rifts: Insights from the Gulf of Corinth, Greece
2023
Alexander Whittaker1

The volume and grain-size of sediment supplied from catchments fundamentally control basin stratigraphy. Despite this, few studies have constrained sediment budgets and grain-size exported into an active rift and compared…

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Links between Island morphology and endemism
2023
Anaé Lemaire1, Jean Braun2, Esteban Acevedo-Trejos3

Most islands host an endemic biota, i.e., present nowhere else on Earth. This is the case, for instance, of Madagascar. It has been shown that different populations of lemurs, endemic…

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LiquidEarth: Integrating Rapid 3D Geological Modeling in Cross-Platform Mixed Reality
2023
Fabian A. Stamm1, Simon Virgo1, Miguel De la Varga2, Florian Wellmann2

Virtual and mixed reality technologies are reaching maturity for both professional and consumer applications, offering not only stereoscopic 3D visualization environments but also novel user interfaces with more immersive experiences…

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Lithium (Li) mineral characterization of drill cores and hand specimens: supporting exploration with rapid mineralogy mapping
2023
Andrew Menzies1, Jorge Ferreira2, Paula Avila2, Nigel Kelly3, Roald Tagle1

Batteries are a key part of the energy transition. Lithium(Li)-ion batteries are currently the main source of energy storage in the market and will likely remain so for the foreseeable…

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Lithium exploration, geologic modelling, resource estimation and mine planning for a spodumene-bearing pegmatite deposit in Ontario, Canada
2020
Stephan Peters, Florian Lowicki, Ernst Bernhard Teigler, Torsten Gorka, Florian Beier & Jana Rechner

The growing need for energy storage for e-mobility and other battery-intense applications has created a large interest in the key battery commodity lithium (Li). A recent hard rock lithium exploration…

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Lithium isotope compositions of various biogenic carbonates throughout the mid-Cretaceous – Challenges of reconstructing δ7LiSW in deep time
2023
Vanessa Schlidt1, Sandra Janina Huber1, René Hoffmann2, Ulrich Heimhofer3, Elisabetta Erba4, Cinzia Bottini4, Stefan Huck3, Hans-Michael Seitz1, Silke Voigt1

The evolution of the seawater Lithium isotope composition (δ7LiSW) depends on the prevalent weathering regime. To reconstruct δ7LiSW, and thus, weathering congruency, two main archives are widely used: calcareous fossils…

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Lithospheric architecture from amphibious AlpArray data across the Ligurian Basin
2020
Anke Dannowski (1), Martin Thorwart (2), Heidrun Kopp (1,2), Grazia Caielli (3), Roberto de Franco (3), Ingo Grevemeyer (3), Dietrich Lange (1), Felix Wolf (1), Wayne Crawford (4), Anne Paul (5), Wayne Crawford (4), M'SM71 cruise participants (6), AlpArray Working Group (6),

The Ligurian Basin is located north-west of Corsica at the transition from the western Alpine orogen to the Apennine system. The Back-arc basin was generated by the southeast trench retreat…

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Lithospheric contact of the Western Carpathians with the Bohemian Massif in the light of seismic and new AlpArray gravity data
2021
Dominika Godová1,2, Miroslav Bielik1,2, Pavla Hrubcová3, Roman Pašteka2, Pavol Zahorec1, Juraj Papčo4

The Bohemian Massif represents the largest exposure of rocks deformed during the Variscan orogeny. Western Carpathians form an arc-shaped mountain range related to the Alpine orogeny. In our study, the…

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Lithospheric-scale 3D model of Sicily domain based on gravity analysis
2021
Giovanni Floridia1, Denis Anikiev2, Marco Viccaro1,3

Sicily is a part of the central-Western Mediterranean area and represents a geotectonic boundary between the African and European plates. It is the result of a complex geological process based…

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Lithostratigraphic mapping of Palaeozoic units in the northern Rhenish Slate Mountains and the contribution of LithoLex
2023
Sascha Sandmann1, Stephan Becker1, Sören Stichling1, Sven Hartenfels1

The Rhenish Slate Mountains are one of the classical outcrop areas for stratigraphic research in Devonian and Carboniferous strata. Lithostratigraphic mapping of German parts of the Rhenish Slate Mountains has…

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Lithostratigraphy in high-grade terrains – An approach for the classification of metamorphic rocks?
2023
Sebastian Weber1

A lithostratigraphic unit is a stratum or body of strata that conforms to the law of superposition and is defined based on lithic characteristics and stratigraphic position. The stratigraphic concept…

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Living landscapes in the lab, virtually and in real life: causation and a feeling for what happens in research, education and societal impact
2020
Maarten G Kleinhans

The landscapes built by rivers and coasts in conjunction with ecological engineering plant species have been and will be under stress by population pressure and global change. The expertise of…

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Long-term changes of Earth’s internal magnetic field and their effects on the shielding and cosmogenic nuclides
2023
Sanja Panovska1, Monika Korte1, Ilya Usoskin2

The Earth’s magnetic field shields our planet against highly energetic particles from the Sun and outer space. Over geological times, the time-varying geomagnetic field exhibited periods of dramatic changes, both…

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Long-term mechanical behavior of claystone
2021
Sibylle Irene Mayr

For decades, claystone is investigated as a likely host rock material for the deep geological disposal of highly radioactive waste. To ensure safe operation, knowledge about the long-term (thermo-hydro-) mechanical…

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Low-grade Blueschist-facies Metamorphism in the Central Yarlung Suture Zone, Southern Tibet
2022
Guangming Sun1

Blueschists are mostly metamorphosed basaltic rocks that form at high-pressure and low-temperature conditions and characterize sodic amphibole as the major constituent mineral. Blueschists in southern Tibet are distributed as discontinuous…

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Lower Cretaceous Sandstones in the Lower Saxony Basin – a potential geothermal play
2023
Roberto Pierau1, Robert Schöner1

This study focusses on Lower Cretaceous sandstone units of Valanginian and Berriasian age in Lower Saxony. The understanding of the distribution and the hydraulic properties of these aquifers is essential…

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Machine learning aided 3D modeling of Buntsandstein Formations for potential analysis of hydrothermal systems
2023
Sebastian Weinert1, Michael Göthel1, Jasmin Pikelke1, Andreas Simon1, Thomas Höding1

Hydrothermal systems offer significant potential for green energy and heat production. The Buntsandstein Formations provide aquifers that are applicable for hydrothermal heat (or power) production. The Geological Survey of Brandenburg…

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Magma evolution and epithermal ore formation at Conical Seamount, Papua New Guinea
2022
Louis-Maxime Gautreau1, Philipp A. Brandl1, Thor H. Hansteen1

The Tabar-Lihir-Tanga-Feni (TLTF) island chain in northeastern Papua New Guinea hosts the world-class Ladolam gold deposit on Lihir island as well as several other Au prospects. Several young seamounts are…

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Magmatic and geodynamic evolution of the King’s Trough Complex – the “Grand Canyon” of the North Atlantic
2023
Antje Dürkefälden1, Jörg Geldmacher1, Folkmar Hauff1, Dieter Garbe-Schönberg2, Maxim Portnyagin1, Johanna Schenk1, Michael Stipp3, Kaj Hoernle1

The King’s Trough Complex (KTC) is a major canyon-like structure in the eastern North Atlantic and consists of several deep basins: The huge King’s Trough in the west is flanked…

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Magmatic controls on the ore-forming potential at the submarine Brothers volcano, Kermadec arc
2022
Philipp A. Brandl1, Maxim Portnyagin1, Cornel E.J. de Ronde2, Frank J. Tepley III3, Christian Timm4, Folkmar Hauff1, Dieter Garbe-Schönberg5

The submarine Brothers arc volcano ~350 km NE of New Zealand is a unique site for studying active magmatic-hydrothermal ore formation. In 2018, IODP Expedition 376 cored the subsurface to…

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Magmatic to hydrothermal REE mineralization in Mesoproterozoic ankerite carbonatite, Swartbooisdrift, NW Namibia
2023
Albert Riehm1, Kirsten Drüppel1

Strong local REE enrichment is observed in Mesoproterozoic ankerite carbonatite exposed at Swartbooisdrif, NW Namibia (Drüppel et al., 2005). The carbonatite dykes transect older anorthosites of the Kunene Complex and…

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Magmatic vs. metasomatic ijolite petrogenesis – constraints from the type locality Iivaara, Finland
2023
Sven Sindern1, Fahmi Hakim1, Tobias Fusswinkel1, Sajjad Ali1, Ulrich Kramm1

Complex field relationships and association to alkaline ultramafic rocks, textural diversity and locally marked isotopic heterogeneity of ijolites lead to contrasting petrogenetic concepts for these rocks. They may either be…

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Magnesium and calcium isotope fractionation during microbial dolomite formation
2021
Michael Tatzel1,2, Adina Paytan2, Samantha Carter2, Daniel A. Frick3, Francisca Martinez-Ruiz4, Zach A. DiLoreto5, Maria Dittrich5, Tomaso R. R. Bontognali6, Mónica Sanchez-Román7

Microbial mediation is considered an important process for the formation of primary dolomite at ambient temperature. Yet, no structural, mineralogical, chemical or isotopic means exist to discern this mode of…

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Magnetic mineralogy of sediments and its geological implications: advances and challenges
2022
Ramon Egli1

Magnetic iron minerals are almost ubiquitous in rocks and sediments and covey important information about geological processes and past variations of the Earth’s magnetic field. The recent development of new…

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Magnetic polarity and enviromagnetic stratigraphy of Early Pleistocene terrace deposits of the Lower Moselle: towards a robust chronology of the Main Terraces Complex (MTC) of the Rhenish Massif (RM)
2022
Ulrich Hambach1, Stephanie Scheidt2, Nina Szemkus3, Gilles Rixhon4, Christian Rolf5, Helmut Brückner3

Controlled solely by the Earth’s core, Earth’s Magnetic Field reverses its polarity aperiodically on time scales of 104 to 106 years. This process is recorded by magmatic rocks and by…

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Magnetic pore fabrics and how they predict preferred fluid migration paths in porous rocks
2021
Andrea Regina Biedermann

The shape preferred orientation and connectivity of pores in reservoir rocks largely controls fluid migration properties, for example, by defining preferred flow directions. An accurate determination of preferred flow directions,…

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Magnetic properties of Iron-Phosphate mineral in Early Quaternary lacustrine deposits of Niederschönhagen, NW Germany — a paleoclimate implication
2022
Mehrdad Sardar Abadi1, Christian Zeeden1, Thomas Wonik1

The Early Quaternary lacustrine deposits in the Niederschönhagen area (Detmold, NW Germany) represent an important archive for the paleoclimate record in continental northwestern Europe during the transition from the warm…

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MANAGED AQUIFER RECHARGE (MAR) AR AS A TOOL TO MITIGATE AQUIFER OVEREXPLOITATION: INSIGHTS FROM LOS ARENALES AQUIFER (SPAIN)
2021
Jose David Henao Casas1,2, Enrique Fernández Escalante1, Francisco Ayuga2

Irrigation agriculture in Los Arenales aquifer has resulted in staggering groundwater level declines in the last quarter of the XX century. The objective of this study is to assess the…

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Managed Aquifer Recharge for sustainable development in the Northern Coastal Aquifer System of Sinai Peninsula, Egypt
2023
Ashraf Sayed Seleem1, Mona Morsy2, Peter Dietrich3

The groundwater is a main issue in sustainable development of the Sinai Peninsula, Egypt. Because of extensive groundwater abstraction, the Quaternary coastal aquifer system in the study area is now…

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Managing Geodata within the Site Selection Procedure
2021
Torsten Lange, Jessica-Aileen Alten, Diana Hermann, Sönke Reiche, Team Standortauswahl

This contribution outlines the components of the geodata management at the Site Selection Department of the BGE, responsible for the implementation of the German site selection procedure. Its first phase…

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Mandibular morphology of Middle Pleistocene cave bears (Ursus deningeri) from Santa Isabel de Ranero-Bear sector
2020
Anneke H. van Heteren(1,2,3), Mónica Villalba de Alvarado (4,5), Mikel Arlegi (6,7) & Asier Gómez-Olivencia (6,8,5)

The cave of Santa Isabel (301 m above sea level) is located in the Ranero neighborhood (Karrantza, Biscay, Spain) and currently has two openings and approximately 500 m of development….

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Mantle melting, mineralogy and (maybe) magma oceans: the metal stable isotope perspective
2022
Helen M Williams1, Caroline Soderman2, Simon Matthews1, Ayesha Landon-Browne1

Many studies of high-amu stable isotope systems (e.g., Mg, Si, Fe, Ni, Zn, Ti, Ca, Cr, V) in terrestrial magmatic rocks and silicate achondrite meteorites aim to link equilibrium mineral-…

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Mantle metasomatism constraint: LA-ICPMS U-Pb dating of single garnet xenocrysts from the V. Grib kimberlite, Russia
2022
Leo J. Millonig1, Elena V. Agasheva2, Alexey M. Agashev2, Richard Albert1, Aratz Beranoaguirre3, Axel Gerdes1

Mantle metasomatism largely controls the physical and chemical properties of the lithospheric mantle and exerts control over the genesis of kimberlitic magmas and diamond formation. In this context, garnet xenocrysts…

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Mantle response to ridge re-organization
2022
Alessio Sanfilippo1

The local preservation of depleted Nd-Hf and Os isotopic compositions in abyssal peridotites contrasts with the lack of such extreme isotopic signatures in erupted MORB [1]. This is likely a…

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Mapping radiation-damage annealing in zircon
2022
Birk Härtel1, Raymond Jonckheere2

Radiation damage accumulates in the zircon lattice due to α-disintegration of trace levels of U, Th, and their α-emitting daughters. Upon heating, the lattice damage anneals in two stages by…

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Mapping the mantle transition zone discontinuities across South-Central Europe using body waves from seismic noise
2023
Yang Lu1, Stefan M. Schmid2, Qing-Yu Wang3, Götz Bokelmann1

Imaging the deep Earth structures is conventionally carried out using earthquake recordings. However, the resolving capability of such techniques (e.g., SS precursors and receiver function analysis) is often limited by…

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Market power Indonesia – from the largest ore exporter to the leading nickel supplier for the green transition
2023
Michael Szurlies1

Because of its specific properties, nickel is set to play a key role in the implementation of new megatrends such as the energy and mobility transition. Nickel is used in…

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Mass dependent δ74/70Ge variations within chondrites: Insights on inner–outer Solar System dichotomy
2022
Guillaume Florin1, Béatrice Luais2, Damien Cividini2

The moderately siderophile and volatile elements are strong tracers of early solar nebula processes, including condensation and accretion-collision of meteorite parent bodies. Among them, the germanium (T50% condensation=825K) shows significant…

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Mass movements in Germany – contributions to the landslide susceptibility modeling
2021
Dirk Balzer, Michael Fuchs, Dirk Kuhn, Jewgenij Torizin

The presentation provides an overview about the project “Mass Movements in Germany (MBiD)” jointly implemented by six State Geological Surveys and the Federal Institute for Geosciences and Natural Resources in…

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Material use of geothermal waters
2021
Goldberg, Valentin Magnus; Kluge, Tobias; Nitschke, Fabian

The production of geothermal energy requires the circulation of large volumes of thermal brines reaching up to several 100 L/s. These brines are the product of long-time water-rock interactions at…

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Maturation and migration processes in intact source rock micro plugs induced by chemical and thermal treatment: A new approach combining Rock-Eval pyrolysis and organic petrography
2022
Arysthasya Arysanto1, Ralf Littke1, Markus Dörner2, Michael Erdmann2, Sebastian Grohmann1

This study proposes a new approach to investigate hydrocarbon generation and migration processes in petroleum source rocks under laboratory conditions. For the first time, programmed open-system pyrolysis using a Rock-Eval…

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Maximizing Geothermal Resources: Innovative Lithium Extraction for Energy Transition and Reduced Dependency in the EU.
2023
Detlev Rettenmaier1, Roman Zorn1, Elodie Jeandel1

Lithium is a critical raw material for the EU, being strategic for the energy transition, especially for battery production. Solutions are needed to reduce the EU dependency on the whole…

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Measurement of Diffuse Submarine Groundwater Discharge at intertidal puddles at the Königshafen – Sylt
2021
Sebastian Janßen1, Alexandra Nozik1, Ulf Mallast2, Nils Moosdorf1,3

Coastal regions represent a transition between land and sea. From the hydro(geo)logical point of view freshwater and saltwater are coming together here. The groundwater discharge which discharges directly into the…

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Measurement of the dusting behaviour by means of continuous fall and determination of the asbestos content by scanning electron microscopy of technical building materials
2022
Jan Petrausch1, Sophie Friedrich2, Martin Hönig2, Stefan Rams3, Lukas Morgenstern3

Asbestos fibres are still an important topic today due to their strong carcinogenic effect, especially in demolition, renovation, and maintenance work. Due to the various matrices and asbestos fibre bonding…

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Measuring fallout plutonium activities in soils to trace the fate of soil organic matter in arable land, Republic of South Africa
2022
Joel Mohren1, Hendrik Wiesel2, Wulf Amelung3, Alexandra Sandhage-Hofmann3, Erik Strub4, Steven A. Binnie1, Stefan Heinze5, Tibor J. Dunai1

The Free State Province comprises one of the major agricultural regions in the Republic of South Africa. Here, the loss of soil organic matter (SOM) from arable land bears the…

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Mechanisms of Paleoproterozoic critical metal (Ge, Bi, Te) mobilisation in the Black Angel district, West Greenland
2023
Michael Eigler1, Jochen Kolb1, Benjamin Walter1

Zn-Pb deposits are host to a large proportion of worldwide resources of Ge and other critical metals. The Black Angel district in central West Greenland hosts several Zn-Pb occurrences, including…

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Mechanistic Insights of Mild Hematite Reduction in Hydrogen Storage Sites
2021
Sonja Keller, Christian Ostertag-Henning

Hydrogen is a prospective energy carrier whose storage in extensive volumes is still an unsolved problem. One approach is underground hydrogen storage, in which geological formations such as salt caverns…

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Megathrust shear force limits mountain height at convergent plate boundaries
2021
Armin Dielforder1, Ralf Hetzel2, Onno Oncken3

The shear force along convergent plate boundary faults (megathrusts) determines the height of mountain ranges that can be mechanically sustained. Whether the true height of mountain ranges corresponds to this…

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Megathrust stress drop as trigger of aftershock seismicity in subduction zone forearcs: Insights from the 2011 Mw 9.0 Tohoku earthquake, Japan
2023
Armin Dielforder1, Gian Maria Bocchini2, Kilian Kemna2, Andrea Hampel1, Rebecca Harrington2, Onno Oncken3

Large megathrust earthquakes like the 2011 Mw 9.0 Tohoku earthquake (Japan) are followed by numerous aftershocks in the subduction zone forearc overlying the seismogenic fault. The aftershocks in the forearc…

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Melt inclusions in zircon are powerful petrogenetic indicators and improve zircon thermometry
2021
Dominik Gudelius1, Armin Zeh1, Renat R. Almeev2, Allan H. Wilson3, Lennart A. Fischer4, Axel K. Schmitt5

Melt inclusions in zircon (MIZ) directly reflect the physicochemical state of the magma during zircon growth. However, their potential as geothermometers and petrogenetic indicators is still poorly explored. Therefore, we…

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Melt mixing and transport across the Whale Head Rock contact aureole of the Albany-Fraser Orogen, Western Australia
2022
Jo Moore1, Jack Gillespie2, Katy Evans2, Lukas P. Baumgartner1

The processes that facilitate the production of granitoids are elucidated by the study of exposed lower crustal sections. The focus of this study is an exposure of the lower crustal…

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Melt-assisted strain localization in the upper mantle shear zone of northwestern Ronda (Spain)
2022
Sören Tholen1, Jolien Linckens2

On the northwestern boundary of the world’s largest exposure of subcontinental mantle a major shear zone crops out. A microstructural transect from mylonites to tectonites (0‑700 m distance to the…

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Melting and subsolidus reaction in the system Mg(OH)2-MgCO3 between 2 and 12 GPa
2022
Melanie Jutta Sieber1, Hans-Peter Reichmann2, Robert Farla3, Monika Koch-Müller2

CO2 and H2O are the most abundant volatile components in the Earth’s crust and mantle. The presence of CO2, H2O and mixtures of H2O-CO2 effect the phase relations of mantle…

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Mesozoic to Cenozoic exhumation history of the Odenwald and Heidelberg, Germany
2021
Ulrich Anton Glasmacher1, Florian Krob1, Melanie Raupp1, Nicklas Brachmann1, Dunkl István2, Danny Stockli3, Günther Wagner1

In Germany, the first apatite fission-track study was performed in the Odenwald (Wagner 1968) with the results of Mesozoic apatite fission-track ages. The presentation will re-examine the Mesozoic-Cenozoic exhumation history…

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Metabolic adaptations of foraminifera to oxygen depletion and their role in marine nutrient cycling
2022
Nicolaas Glock1

Benthic foraminifera are ubiquitous marine protists that inhabit environments from the deepest part of the ocean to saltmarsh meadows slightly above sea-level. Various species of foraminifera have highly specific adaptations…

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Metal fluxes in the oceanic crust and implications on the formation of hydrothermal mineralizations
2021
Patten, Clifford (1); Junge, Malte (2); Keith, Manuel (3)

Future discovery of mineral resources requires a better understanding of the mineralized system at large scale. Metal fluxes in the oceanic crust have direct and indirect impact on the formation…

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Metal sources in the actively forming seafloor massive sulfide deposit of the Kolumbo volcano: Insight from the basement rocks
2021
S. Hector1, C. G. C. Patten1, S. P. Kilias2, P. Nomikou2, D. Papanikolaou2, J. Kolb1

The shallow submarine Kolumbo volcano , located in the 5 Ma-to-present Aegean volcanic arc in Greece, hosts an active hydrothermal system currently forming polymetallic seafloor massive sulfide (SMS) mineralization on…

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Metallic raw material demand for hydrogen technology in the German steel production 2030
2021
Katharina Steiger1,2, Jochen Kolb1, Christoph Hilgers1

To reach Germany’s climate neutrality goal in 2045, different technological and systematical changes have to be conducted, such as the expansion of renewable energies plants, the shift towards e-mobility and…

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Metamorphic mapping and geo-morphologic considerations to locate the extraction sites of meta-psammite Late Bronze Age stelae from the Beira Interior (Portugal)
2023
Timo Döbler1, Rafael Ferreiro Mählmann1, Dirk Scheuvens1, Vítor Clamote2, Francisco Henrique3, Marcos Osorio2, Pedro Baptista4, Sébastien Potel5, Lan Nguyen-Thanh1, Ralph Araque Gonzalez6

A petrographic and geochemical provenience analysis of meta-psammite Iberian Stelae from the Final Bronze Age will be presented. A provenience analysis of archaeological objects is a Sisyphean task or impossible…

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Metamorphic reaction kinetics at “dry” and “wet” conditions in the binary MgO-SiO2 system
2022
Mees Gijsbert Franke1, Burkhard Schmidt2, Roland Stalder1, Bastian Joachim-Mrosko1

Reaction rims contain a wealth of information that can be used to decipher the P-T-t-X history of metamorphic and metasomatic rocks. One of the most important parameters that controls reaction…

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Metamorphism and the tectonic evolution of the Archean
2023
Jian Kuang1, Gabriele Morra2, David Yuen3, Shihua Qi4

The tectonics on the Archean Earth is intricate and contentious, with ongoing debate concerning the dominant surface processes controlled by either a plate tectonics regime or alternative forms of tectonics…

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Metasomatic Overprint by Carbonatite derived CaO in Kaiserstuhl Phonolites, Germany
2022
Carsten Jentzsch1, Josua Pakulla2, Simon Spürgin3, Fabian Gäb1, Markus Lagos1, Frank Wombacher2, Carsten Münker2, Chris Ballhaus1

Carbonatites and silica-undersaturated rocks are closely related and occur in rift-related volcanic provinces. The proposed driving mechanism linking both magmatic series is that they share a common source which is…

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Meteoric 10-Be as a tracer for water infiltration into deep weathering zones along a climate gradient
2022
Laura Krone1, Hella Wittmann1, Friedhelm von Blanckenburg2

In a semi-arid and a mediterranean study site in the granitoid Chilean Coastal Cordillera, we investigated drilled weathering profiles of 100 m depth and found significant differences in the depth…

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Methane emission and microbial oxidation at buried abandoned wells in Northern Germany
2023
Sebastian F. A. Jordan1, Stefan Schlömer1, Martin Krüger1, Martin Blumenberg1

As we are risking to exceed the 1.5-degree target in the next decade, effective measures to cut back greenhouse gas emission are necessary. Methane became the focus of attention as…

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Methane release from inactive oil and gas wells in Romania – preliminary results
2023
Calin Baciu1, Eduard Ghiorghiu1, Mustafa Hmoudah1

In spite of the decreasing production, Romania remains one of the most important oil and gas producers in Europe. The European inventories of anthropogenic methane release reveals unexpectedly high emissions…

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Methane seepage in the northwestern part of the German North Sea
2021
Miriam Römer1, Martin Blumenberg2, Katja Heeschen3, Stefan Schlömer2, Hendrik Müller2, Simon Müller2, Christian Hilgenfeldt1, Udo Barckhausen2, Katrin Schwalenberg2

We studied seafloor characteristics, water column anomalies, and sediment methane geochemistry in the German sector of the central North Sea during a research cruise with the German research vessel Heincke…

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Methods for the extraction of rarer metals and base chemicals from geothermal brines
2021
Hans-Jürgen Friedrich

Geothermal brines may contain a plenty of chemical elements in a wider range of concentrations ranging from trace to bulk concentration level. This makes such brines interesting for the winning…

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Mg isotope fractionation in the bivalve Glycymeris
2023
Niklas Keller1, Eric Otto Walliser2, Melita Peharda3, Michael Tatzel1

The Cenozoic cooling that occurred over the past 50 Ma is accompanied by an increase of Mg/Ca ratio in seawater. How this change in seawater chemistry is linked to climate…

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Microbial diversity and metabolic potential in siliciclastic ATES horizons
2023
Julia Mitzscherling1, Lioba Virchow2, Martin Gitter3, Armando Alibrandi1, Simona Regenspurg2, Jens Kallmeyer1, Dirk Wagner4

Microbial processes such as biofilm formation (clogging) and mineral precipitation (scaling) can affect the effectiveness of ATES systems. They can reduce the permeability of potential reservoirs and compromise the efficiency…

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Microbial H2 consumption at conditions relevant for H2 underground storage
2021
Anja Dohrmann, Martin Krüger

Underground storage of hydrogen could be an alternative way to store large amounts of energy. However, microbial consumption of H2 is still a major uncertainty factor. Since microbial life is…

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Microbial iron cycling during deposition and diagenesis of Banded Iron Formations
2022
Carolin L. Dreher1, Manuel Schad2, Muammar Mansor1, Kurt O. Konhauser2, Andreas Kappler1

Banded Iron Formations (BIFs) are marine sediments consisting of alternating iron (Fe)-rich and silica (Si)-rich layers which were deposited between 3.8 to 1.85 Ga during the Precambrian era. BIFs represent…

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Microbial life in an ultra-deep sulfate-methane transition zone on the Antarctic continental margin
2023
Thorsten Bauersachs1, Jens Kallmeyer2, Zeyu Jia2, Mark Schmidt3, Lorenz Schwark4

Ocean sediments are considered to contain microbial biomass that equals the stock of organic matter on all the continents combined. Knowledge on the spatiotemporal distribution and abundance of microbial life…

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Microbially induced iron retention in the Central German coalfield using the example of the Witznitz mine dump: results of a feasibility study
2023
Christian Hildmann1, Sarah Kruber1

As a result of the rearrangement of tertiary sediments and the groundwater lowering during open pit lignite mining, the formerly stable iron sulfide compounds oxidize to iron and sulfate ions…

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Microplastics as a sedimentary component in reefs systems: A case study from the Java Sea
2021
Amanda Utami1,2,3, Lars Reuning1, Olga Konechnaya4, Jan Schwarzbauer4

Microplastic pollution has been reported from coral reef systems all over the tropics. Exposure to microplastics has several negative impacts on coral health. Despite this potential risk for reef systems,…

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Micropyrite in stromatolite : a time capsule of ancient metabolisms
2022
Johanna Marin Carbonne1, Marie Noelle Decraene1, Juliette Dupeyron1, Julien Alleon1, Virgil Pasquier1, Nicolas Olivier2, Christophe Thomazo3

The identification of ancient microbial signatures preserved in the geological record is crucial for understanding life evolution during the Early Earth. Stromatolites and microbialites are considered among undisputable oldest trace…

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Microscale Si isotope variations in radiolarian cherts from the Rhenish Massif
2022
Michael Tatzel1, Daniel A Frick2

The Rhenohercynian back-arc basin hosts a Lower Carboniferous chert-shale succession that documents variable radiolarian productivity, subareal volcanism and pelagic background sedimentation. To assess the potential of radiolarian cherts to record…

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Microseismicity in relation to the rise of the mine water level and the regional stress field in the eastern Ruhr area
2022
Martina Rische1, Thomas Niederhuber2, Kasper David Fischer1, Wolfgang Friederich1

Using data from permanent seismological stations of the Ruhr University and the temporal short-period FloodRisk network in the eastern Ruhr area, microseismicity in the area of the former coal mine…

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Microstructural investigations of the interaction between embedded fuel particles and Portland cement clinker
2022
Charlotte Linden1, Matthias Böhm2, Thorsten Geisler1, Aneta Knöpfelmacher2, Nils Bodendiek2

In view of current climate and energy policies, the cement industry is striving to save emissions and is increasingly using alternative fuels (AF) for the clinker burning process. AF are…

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Microstructures and absolute ages of brittle structures in the Weschnitz Pluton (Southern Odenwald, Germany)
2023
Filip Loeckle1, Axel Gerdes2, Gernold Zulauf3

We present new microstructural evidence and geochronological data from brittle structures sampled in an active quarry located in the Weschnitz Pluton in the southern Odenwald Crystalline Complex (OCC). Open joints…

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Middle to Late Pleistocene alluvial surface ages recorded by their spectral reflectance in Patagonia.
2023
Andreas Ruby1, Taylor Schildgen2, Henry Crawford3, Mitch D'Arcy3, Victoria M. Fernandes1, Hella Wittmann1, Fergus McNab1

The age of alluvial surfaces can play a key role in deciphering surface processes and landscape evolution. However, the most common dating methods (e.g. with cosmogenic nuclides like 10Be) are…

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Milankovitch climate control of hyperpycnal flow sedimentation in an Early Cretaceous succession (Ri Qing Wei Basin, China)
2023
Yingjie Liu1, Christian Zeeden2, Linda Hinnov3

Milankovitch forcing exerts a major control on climate that is recorded in the sedimentary rock record. However, its influence on hyperpycnal flow sedimentation is largely unknown. Hyperpycnites, sediments resulting from…

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Milankovitch cycles in 2.5-Ga iron formations as archive of the early Earth and Earth-Moon system
2023
Margriet L. Lantink1, Joshua H.F.L. Davies2, Rick Hennekam3, Wytze K. Lenstra4, David McB. Martin5, Paul R.D. Mason4, Maria Ovtcharova6, Gert-Jan Reichart3, Urs Schaltegger6, Caroline P. Slomp7, Frederik J. Hilgen4

Regular stratigraphic alternations in lower Paleoproterozoic iron formations (IFs) from South-Africa and Western Australia were recently linked to Milankovitch forcing (1, 2). Hence, valuable information may potentially be obtained from…

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Milankovitch-scale paleoclimatic variability recorded in Permian loessite (south-central France)
2020
Lily S. Pfeifer (1), Linda Hinnov (2), Christian Zeeden (3), Christian Rolf (3) & Christian Laag (3,4)

We present the findings from our recent paper wherein rock magnetic data record discernible Milankovitch-scale paleoclimatic variability through the Permian Salagou Formation loessite (south-central France). Analysis and modeling of this…

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Millennial hydrological variability during the MIS3-2 in a lowland freshwater ecosystem of the northern Neotropics
2022
Luis Rodrigo Martinez Abarca1, Michelle Abstein1, Frederik Schenk2, Liseth Perez1, Thorsten Bauersachs3, Antje Schwalb1

We inferred environmental changes in the northern Neotropics using geochemical and mineralogical data from the sediment record of Lake Petén Itzá (Guatemala), covering the Marine Isotope Stages (MIS) 3 (57-29…

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Millennial variability, hydrological and limnological changes during MIS3-2 in Lake Petén Itzá, Guatemala.
2021
Rodrigo Martinez-Abarca1, Michelle Abstein1, Hoelzmann Philipp2, Thorsten Bauersachs3, Pérez Liseth1, Stockhecke Mona4, Cohuo Duran Sergio5, Macario Gonzalez Laura5, Schwalb Antje1

Heinrich Stadials and Greenland Interstadials are abrupt climate variations that are observed in the Northern Hemisphere throughout Marine Isotopic Stages (MIS) 3-2. Lake Petén Itzá, northern Guatemala, is a key…

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Millennial-timescale climate change over the last 800 kyrs evidenced by magnetic, colorimetric and ATR-FTIR data from the Suhia Kladenetz quarry loess-paleosol sequence (Pleven, Bulgaria)
2022
Christian Laag1, France Lagroix1, Yohan Guyodo1, Diana Jordanova2, Neli Jordanova2, Daniel Ishlyamski2, Bozhurka Georgieva2, Ségolène Saulnier-Copard3, Stoil Chapkanski3, Olivier Moine3, Pierre Antoine3

Eastern European loess-paleosol sequences (LPS) are excellent archives of past climate change. Millennial-timescale climate change is successfully evidenced in loess of the last and penultimate glacial periods. However, study designs…

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Mine waste: Nuisance or important metal resource for the future?
2023
Elisabeth Eiche1, Luca Schindler1, Elena Kubiak1, Meike Lindner1, Benjamin Walter1, Jochen Kolb1

Germany has a long history in metal ore mining stretching over a period of more than 1000 years. Both small and large heaps or dumps remain in the mining districts…

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Mine water for thermal energy storage – An analysis of hydrogeochemical factors based on in-situ real laboratory stations
2023
Martin Binder1, Alireza Arab2, Christian Engelmann2, Traugott Scheytt2

Aquifer thermal energy storage (ATES) is a promising technique for the short- to long-term storage of reusable thermal energy in the subsurface. Many ATES projects suffer from operational issues or…

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Mine water rebound in German hard coal mines – geochemical and petrophysical data support for an integrative monitoring plan
2021
Henning Jasnowski-Peters, Barbara M.A. Teichert, Till Genth, Lisa Rose, Christian Melchers

Mine water rebound in German hard coal mine areas operated by RAG AG under the leadership of RAG Foundation is a showcase for post-mining associated research. It is a long-term,…

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Mineral and rock magnetism for reservoir characterization
2021
Kontny, Agnes; Dudzisz, Katarzyna

Magnetic properties of rocks show a wide range of geoscience applications and they are rapid and non-destructive to measure. Magnetic susceptibility is one of the most common magnetic parameters that…

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Mineral biosignatures record pore water geochemistry during microbial diagenesis – modern Lake Towuti as a ferruginous case study
2023
Aurèle Vuillemin1, André Friese1, Fatima Ruiz Blas1, Alice Paskin2, Cynthia Henny3, Marina Morlock4, Hendrik Vogel5, Jens Kallmeyer1

Ferruginous conditions prevailed in the oceans through much of Earth’s history. However, past biogeochemical cycling inferred from mineral components identified in ancient iron formations remain poorly understood in terms of…

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Mineral inclusions in detrital garnet – An excellent petrogenetic tool
2021
Jan Schönig

Cold and deep subduction is a characteristic feature of modern-style plate tectonics (MSPT) and a prerequisite for the formation of low-temperature/high-pressure (LT/HP) and ultrahigh-pressure (UHP) rocks. Although having strong implications…

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Mineral material for use in dermocosmetic products based on a modification kaolin from the Jegłowa deposit (Poland)
2023
Anna Czarnecka-Skwarek1, Agnieszka Rożek1, Michał Pilaszkiewicz1

The aim of the research was to produce a microbiologically safe, modified mineral material with increased sorption parameters, enabling use in the cosmetics industry as an active substance in the…

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Mineralogical and geochemical alterations in the Opalinus Clay and surrounding formations provide information about the long-term stability of this hydrogeochemical system
2023
Marie Bonitz1, Theresa Hennig2, Anja M. Schleicher1, David Jaeggi3, Michael Kühn1

The Opalinus Clay is the chosen host rock for the Swiss deep geological disposal of nuclear waste, and it is also investigated in Germany. For the long-term integrity of the…

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Mineralogical and geochemical investigations on lamprophyric intrusions of the Gottesberg Sn-(W) greisen deposit, Vogtland, Germany
2023
Ferdinand Martens1, Thomas Seifert1, Eric Hohlfeld2, Sabine Gilbricht1

The Erzgebirge-Vogtland metallogenic province covers a wide variety of tin mineralization (greisen-, vein- and skarn-type) and represents one of the classic Sn regions in the world. The Gottesberg Sn(-W) greisen…

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Mineralogical characterization of podiform chromitite deposit in the Eastern Mirdita Ophiolite, Albania
2020
Malte Junge (1), Ann-Christin Kolb (2), Antje Wittenberg (3), Henrike Sievers (3), Dashamir Gega (4) & Kujitim Onuzi (5)

The Mirdita ophiolite in Albania is part of an ophiolite belt occurring between the Apulian and Pelagonian subcontinents in the Balkan Peninsula. Within the Eastern Mirdita Ophiolite major chromite deposits…

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Mineralogical evidence for Quaternary serpentinization in the New-Caledonian ophiolite: Implication for the low-temperature genesis of H2- and CH4-bearing alkaline fluids
2023
Marianna Corre1, Fabrice Brunet1, Stéphane Schwartz1, Cécile Gautheron2, Arnaud Agranier3, Stéphane Lesimple4

H2-bearing fluids (pH 10 – 12) issued in alkaline springs found in several ophiolitic complexes worldwide are believed to result from the alteration of ultramafic rocks by infiltration of meteoric…

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Mineralogical museums are attractive and special places of learning
2022
Dorothée Kleinschrot1

Minerals in beautiful colors and shapes still attract visitors to museums. Whereas in the past it was hobby collectors, today it is also interested people who want to find out…

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Mineralogy and Leaching of Steel Slag (BOF/LD/Converter steel slag)
2022
Sieger R. van der Laan1

Integrated steelworks produce steel from iron-ore. Co-produced are vast amounts of slags in the Blast Furnace process (~200-250 kg slag/ton of metal) and Basic Oxygen Furnace (BOF) process (~100 kg…

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Mineralogy and origin of a silico carbonatite mega xenolith in the alvikites of the Dicker Willem Complex (Namibia)
2023
Lorenz Kemmler1, R. Johannes Giebel2, Benjamin F. Walter3

The Eocene (49 Ma) Dicker Willem carbonatite complex represents an “Inselberg” (5 km2) forming a subvolcanic intrusion in southern Namibia. It consists of several stages of carbonatitic intrusions including, alvikite,…

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Mineralogy and Processing experiments of an unusual parasite bearing REE ore from northern Vietnam
2022
Robert Moeckel1, Jens Gutzmer1, Mathias Burisch2, Max Hesse3, Alan Cardenas-Vera1, Thomas Heinig4, Quang Van Phang5

The cabonatite-hosted Namxe rare earth element (REE) deposit in northern Vietnam has a total rare earth oxide (TREO) content of up to 2 wt% which is mainly hosted by parasite…

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Mineralogy determines Co and Ni extraction from laterites via bioleaching and chemical leaching
2022
Srdjan Stankovic1, Stefanie Hetz1, Simon Goldmann1, Hans-Eike Gäbler1, Kristian Ufer1, Mirko Martin2, Frank Haubrich2, Herwig Marbler1, Axel Schippers1

Laterite deposits may contain economic grades of cobalt and nickel. Laterite ore processing is challenging, especially for iron-rich, limonitic laterites. The BMBF-funded CLIENT II project BioProLat aims to develop a…

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Mining rock salt – using a 3D model with respect to economic requirements
2023
Anne Engler1, Thomas Kießling1, Marie-Luise Richter1, Anne Baum2

Intending to improve mining and exploration processes within a rock salt producing mine all available geological information were collected, evaluated and prepared to create a 3D subsurface model. Besides geological…

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Minor and trace elements in the Spremberg-Graustein-Schleife Kupferschiefer deposit: A deportment study
2023
Zahra Nourizenouz1, Bradley Martin Guy1, Robert Möckel1, Doreen Ebert1, Max Frenzel1

The sediment-hosted Spremberg-Graustein-Schleife deposit is located in Lusatia, eastern Germany. Mineralization occurs in the lower Zechstein units, extending from the Grauliegend conglomerates and sandstones into the overlying organic-rich Kupferschiefer black…

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MINTELL4EU; the European Minerals Yearbook
2021
Eimear Deady1, Špela Kumelj2, Lisbeth Flindt Jørgensen3

The MINTELL4EU project builds upon previous European-wide mineral intelligence projects, including ORAMA, MICA, MINventory and particularly the Minerals Intelligence Network for Europe project (Minerals4EU). In this most recent iteration, we…

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Mobile GIS as an innovative method for Geomonitoring of post-mining processes
2022
Marcin Pawlik1, Benjamin Haske1, Bodo Bernsdorf2, Tobias Rudolph2

The use of geographic information systems in the field is often referred to as mobile GIS. This method makes it possible to collect, edit data with a smartphone application using…

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Mobilization of non-crystalline uranium (U) and related U isotope fractionation in biotic environments
2022
Yvonne Roebbert1, Chris Daniel Rosendahl1, Axel Schippers2, Stefan Weyer1

Environmental uranium (U) contaminations may be remediated by using microbes to reduce mobile hexavalent [U(VI)] to more immobile tetravalent U [U(IV)]1. However, the subsurface stability of U(IV), usually present as…

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Mobilization of redox-sensitive trace elements during water-rock interaction in presence of siderophores: Effects of solution pH, oxygen fugacity and weathering state
2021
Dennis Kraemer, Michael Bau

Siderophores are important biogenic chelators produced by plants, microbes and fungi, which promote the (bio-)availability of iron and other highly-charged cations in the natural environment. The hydroxamate siderophore desferrioxamine B…

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Model-based impact study of forest restructuring on groundwater recharge and hydrodynamics in a waterworks catchment (Briesen, Brandenburg, Germany)
2023
Franziska Mehler1, Felix Möhler1, Matthias Clausen2, Ines Schwenzer2

The waterworks Briesen supply drinking water for the city of Frankfurt (Oder). The catchment of the waterworks is dominated by monoculture pine forests (Pinus sylvestris). Several forest-hydrological studies found that…

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Modeling in Landlab: Long-Profile Evolution of Transport-Limited Gravel- and Sand-Bed Rivers
2023
Behiye Nilay Iscen1, Jeffrey Kwang1, Andrew Wickert2

Alluvial river adjustment occurs in response to altered sediment and water inputs, driven by both natural and anthropogenic climate change, changes in land use and/or land cover, and/or imposed by…

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Modeling of Fe-bearing mineral surfaces towards understanding the reactivity of chemically modified nanozerovalent iron particles
2022
Daniel Tunega1, Miroslav Brumovský1

Chlorinated hydrocarbons (CHCs) such as PCE (perchloroethylene), TCE (trichloroethylene), and DCE (dichloroethylene) represent a serious contamination problem for water resources. Therefore, there is an urgent need to develop new effective…

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Modeling the influence of climate on groundwater flow and heat regime in a water-stressed region – a case study of Brandenburg
2023
Mikhail Tsypin1, Mauro Cacace1, Magdalena Scheck-Wenderoth2

We explore the effects of a changing climate on groundwater dynamics based on thermo-hydraulic simulations to reconstruct the temperature and pressure below the State of Brandenburg between 1950 and 2010….

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Modelling 2 Phase Flow in Heterogeneous and Anisotropic Rocks using AFRMs
2020
Paul William, John Glover, Piroska Lorinczi & Saddam Sinan

Geological modelling and flow simulation in the subsurface in heterogeneous and anisotropic media is increasingly common. Unfortunately, conventional modelling using statistical techniques, up-scaling and interpolation to populate the inter-well volume…

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Modelling of fault slip: beyond Mohr-Coulomb?
2020
Mauro Cacace (1), Guido Blöcher, Antoine B. Jacquey (2), Hannes Hofmann (1), Arno Zang (1), Günter Zimmermann (1), Oliver Heidbach (1), Christian Kluge (1) & Magdalena Scheck-Wenderoth (1,3)

In this study, we carry out an evaluation of the potential for induced seismicity arising from hydraulic stimulation of low to intermediate enthalpy porous reservoirs, by taking the geothermal reservoir…

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Modelling Switzerland’s Geology using a Multi-Method Approach
2021
Eva Kurmann, Lance Reynolds

The Swiss Geological Survey (SGS) produces a suite of 3D geological models – both structural and parametric – in an established production environment, on a nation-wide basis. Output consists of…

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Modelling the deposition of the phosphorite layers in Malta and reconstruction of the fauna
2021
Lars Tischer1, Emilia Jarochowska1, Or Bialik2, Fabian Jakob1, Ray Zammit3, Matthias López Correa1, Christian Schulbert1

There are several phosphorite layers within the sedimentary succession of the Maltese Islands. These are related to climatic and ocean circulation pattern changes in the Mediterranean through the late Cenozoic….

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Modelling the detrital signals of cosmogenic nuclides concentrations coupled with landscape evolution
2023
Sebastien CARRETIER1, Vincent REGARD1, Youssouf ABDELHAFIZ1, Bastien PLAZOLLES1

The measurement of cosmogenic nuclide (CN) concentrations in riverine sediment has provided breakthroughs in our understanding of landscape evolution. Yet, the link between this detrital CN signal and landscape evolution…

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Modelling thermal evolution of molten and tidally heated Io-Like planetary mantles
2023
Mathilde Kervazo1, Lena Noack1, Enrique Sanchis1

Internal heating in rocky bodies shape their interior and surface characteristics as well as their evolution. Among internal heat sources, tidal dissipation is a key one. The most striking evidence…

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Modelling with the Geowindow
2021
Dominik Conrad1, Tom Klaus1, Gregor C. Falk2, Matthias Faller2

The Geowindow offers an infrastructure to create analog models in geographic contexts, it is a “test tube” for visualization; not only of static images but also to display processes in…

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Moderately volatile element fractionation in chondrites constrained by isotope dilution and Cd and Zn isotopes
2022
Ninja Braukmüller1, Claudia Funk2, Wafa Abouchami3, Harvey Pickard4, Mark Rehkämper4, Alessandro Bragagni5, Stephen Galer6, Carsten Münker2, Harry Becker7, Frank Wombacher2

Volatile elements in chondrites are usually depleted relative to CI chondrites. To disentangle the processes that affected volatile elements in the protoplanetary disk and on parent bodies, we present high-precision…

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Molecular records of the Triassic-Jurassic and the early Toarcian climate events at the land-sea interface
2023
Wolfgang Ruebsam1, Tim Marten1, Lorenz Schwark1

The Triassic-Jurassic boundary (TJB) and the early Toarcian are characterized by greenhouse warming, caused by the emplacement of large volcanic provinces. Despite similar trigger mechanisms, the two events differ in…

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Molybdenum isotope evidence for forearc mantle recycling at the Tongan subduction zone
2021
Qasid Ahmad1, Martin Wille1, Stephan König2, Carolina Rosca2, Angela Hensel1, Thomas Pettke1, Jörg Hermann1

Molybdenum isotope ratios (δ98/95Mo) of marine sediments constitute an important tracer for paleoredox reconstructions of the ancient ocean. Due to its redox-sensitivity, significant mass-dependent Mo isotope fractionation is induced in…

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Monazite and zircon petrochronology of granulites and migmatites as remnants of a magmatic arc on the West Gondwana margin (Socorro Nappe, south-eastern Brazil)
2023
Mikaella Balis1, Bernhard Schulz1, Mario da Costa Campos Neto2

In the Southern Brasília Orogen (south-eastern Brazil), a nappe system that represents the roots of a magmatic arc records HT-UHT metamorphic conditions in lower to mid-crustal rocks. It is divided…

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Monitoring alkalinity enhancement in intertidal environments – A field study –
2023
Julia Anne-Elise Lübbers1, Isabel Mendes1, Alexandra Cravo1, Joachim Schönfeld2, Patricia Grasse3

Global warming is the greatest threat for humankind today. Despite all efforts to reduce CO2 emissions, the undertaken measures are not sufficient to stop the temperature rise. One recently proposed…

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Monitoring land subsidence and determining its relationship with groundwater abstraction using PS-InSAR method, Case study of Rafsanjan plain, Iran
2020
Ali Mehrabi (1) & Reza Derakhshani (1,2)

The issue of subsidence is one of the serious problems in the plains of Iran. Rafsanjan plain is also prone to this danger due to the high level of groundwater…

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Monitoring of Methane Emissions at Southern Hydrate Ridge using Deep-Sea Cabled Observatory
2021
Yann Marcon1, Deborah Kelley2, Blair Thornton3,4, Dana Manalang5, Gerhard Bohrmann1

Natural methane gas release from the seafloor is a widespread phenomenon that occurs at cold seeps along most continental margins. Since their discovery in the early 1980s, seeps have been…

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Morphological dating of fluvial terraces using high resolution GNSS profiles and satellite derived DEMs with application to Patagonia, Argentina
2023
Lennart Grimm1, Victoria M. Fernandes2, Fergus McNab2, Taylor Schildgen1

Changing climatic conditions cause alluvial rivers to aggrade and incise, which can result in the formation of multi-generational fluvial terrace sequences. Such records can be used to investigate past interactions…

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Morphology and depositional architecture of supercritical alluvial fans: control by autogenic processes or high-frequency climatic oscillations?
2023
Jutta Winsemann1, Tim Hartmann1, Lang Jörg1, Fälber Runa1, Lauer Tobias2

The depositional architecture and geomorphology of alluvial fans that have evolved in response to similar regional environmental conditions can differ strongly, implying that autogenic processes may play an important role…

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Morphotectonic analysis of the drainage basins on the western border of Lut Desert
2020
Raziye Bashiri (1), Farzaneh Hashemi (2), Reza Derakhshani (1,2), Shahram Shafieibafti (1)

Morphotectonic indices are useful for investigating the effect of tectonic activity in a region. Analysing of these indicators could be applied for zoning an area by using advantages of Geographical…

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Multi-Method Geophysical Investigation of Fault Structures in the Northern Upper Rhine Graben: Insights from the NeoNORG Project
2023
Johannes Mair1, Hermann Buness2, Andreas Henk3, Rouwen Lehné4, Lajos Röhlinger3

Within the framework of the project Neotectonics in the Northern Upper Rhine Graben (NeoNORG), we used a multi-method geophysical approach to obtain a detailed understanding of the fault structures within…

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Multi-paprameter monitoring at alpine karst springs to identify suitable early-warning indicators for bacterial contamination
2021
Simon Frank, Nadine Goeppert, Nico Goldscheider

In alpine regions, karst springs are important sources of drinking water but highly vulnerable to temporary contamination, particularly in response to rainfall events. This variability of water quality requires rapid…

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Multi-proxy, localised reconstructions of climate and weathering from cave speleothem samples
2021
Christopher Day1, Philip Pogge von Strandmann2, Franziska Lechleitner3, Heather Stoll4

Speleothems (secondary calcium carbonate formations) offer significant potential for recording environmental processes above caves, an area increasingly referred to as the Critical Zone. Speleothems grow for hundreds to millions of…

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Multi-Step Crystallization Pathway of Vivianite
2022
Alice Paskin1, Thais Couasnon2, Jeffrey Paulo H. Perez2, Stefan Reinsch3, Sergey Lobanov2, Vladimir Roddatis2, Roberts Blukis2, Liane G. Benning1

Vivianite is a poorly soluble iron (II) phosphate phase found in modern and ancient anoxic soils and sediments. It plays an important role in the biogeochemical cycling of Fe (II)…

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Multiphase mass and heat transfer in fractured high-enthalpy geothermal systems
2020
Yang Wang (1), Stephan de Hoop (1), Denis Voskov (1,3), David Bruhn (1,2) & Giovanni Bertotti (1)

Multiphase mass and heat transfer are ubiquitous in the subsurface within manifold applications. The presence of fractures magnifies the uncertainty of the heat transfer process, which will significantly impact the…

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Mutual effects of pH and ionic strength on the mobility of metoprolol in saturated quartz sand
2021
Joshua Sawall, Ferry Schiperski

Emerging micropollutants such as lifestyle drugs, pesticides, and pharmaceuticals are increasingly detected in the aquatic environment. To counter possible threats posed by these pollutants, their transport behaviour needs to be…

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Nachbergbau: Chancen und Herausforderungen
2021
Dennis Quandt1, Tobias Rudolph2, Christoph Hilgers1

Bergbau im 21. Jahrhundert bedeutet auch Alt- und Nachbergbau, immer geknüpft an die Bewältigung post-montaner Herausforderungen und die Langzeit- und Zukunftsaufgaben. Hiermit einhergehend sind Fragestellungen zu den damit verbundenen Kosten…

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Nachweis der Integrität von Salzkavernen zur hoch-frequenten zyklischen Gasspeicherung
2021
Tobias Fabig, Till Popp, Sebastian Knöfel

Untertage-Gasspeicherung stellt eine wesentliche Nutzung des Untergrunds dar. Sie trägt insbesondere zur Stabilität der Energieversorgung bei. Auch in Zukunft kommt der geologischen Kurz- und Langzeitspeicherung stofflicher Energieträger eine große Rolle…

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NanoExtreme: Nano-focus end-station with double-sided CO2 laser heating for experiments at ID27@ESRF
2022
Wolfgang Morgenroth1, Mohamed Mezouar2, Gastón Garbarino2, Anna Pakhomova2, Björn Wehinger2, Markus Herrmann3, Sandro Jahn3, Lélia Libon4, Max Wilke4

The ESRF has built a new high pressure beamline for nano-focused X-ray diffraction, fluorescence and imaging at the extremely brilliant source EBS. The upgraded beamline is in operation since end…

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Nappe tectonics in the south-eastern Rhenish Massif (Central European Variscides, Germany) – Plate interactions between Gondwana and Laurussia
2023
Katja Mende1, Ulf Linnemann1, Heinz-Dieter Nesbor2, Peter Königshof3, Ulrich Jansen3, Mandy Zieger-Hofmann1, Axel Gerdes4

The Lahn-Dill-Area, the Kellerwald and the Lindener Mark in the southeastern Rhenish Massif (Germany) are part of the Rhenohercynian Zone of the Central European Variscides. They contain various Devonian and…

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Natural Hydrogen – Is it a new game changing energy resource?
2023
Jürgen Grötsch1

The drive towards net-zero emissions as per the Paris 2015 agreement has resulted in significant efforts to develop sustainable energy resources. In order to change the current energy system, alternative…

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Natural hydrogen: What we know about its genesis and its geological occurrences
2023
Maximilian Hasch1, Peter Klitzke1, Dieter Franke1, Andreas Bahr1, Rüdiger Lutz1, Philipp Weniger1, Christian Ostertag-Henning1

Recently, interest in hydrogen as an emission free fuel has increased. So far, hydrogen is produced by steam methane reforming (SMR), water electrolysis or methane pyrolysis. These processes are energy…

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Natural stone resources and sustainability
2020
Tom Heldal (1) & Jorge Carvalho (2)

Natural stone is perhaps the most widely used building material in the history of human evolution, applied in a range of applications, from the most prestigious monuments of civilisations to…

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Navigating the Uncertainty: Rethinking the Relationship of Law and Science
2023
Tony Cabus1

It is now well known that limiting the warming of the planet to 1,5°C by the end of the century will require some degree of carbon dioxide removal (CDR) and…

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Neoflabellina reticulata (Reuss 1851) – The Fossil of the Year 2022
2022
Anna Charlotte Pint1, Peter Frenzel1

The Paläontologische Gesellschaft (Palaeontological Association) has been awarding the title Fossil of the Year since 2008. Every year an important fossil is chosen to promote palaeontology in the public. This…

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Neogene kinematics and structural evolution of the eastern Southern Alps (Giudicarie Belt, Northern Italy)
2020
Vincent Franciscus Verwater (1), Mark R. Handy (1), Eline Le Breton (1), Vincenzo Picotti (2) & Christian Haberland (3)

The eastern Southern Alps formed as a retro-wedge of the Alpine orogen and shortening is partitioned into three kinematically linked fold-and-fault systems: (1) the Giudicarie Bel; (2) the Valsugana Thrust…

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Neogene palaeoceanographic changes off northern-central Chile based on benthic foraminifera from the Bahía Inglesa Formation
2022
Fatima Bouhdayad1, Laura Makowka2, Laura Schneider1, Tiago Freire1, Jassin Petersen1, Sven Nielsen3, Marcelo Rivadeneira4, Patrick Grunert1

The modern oceanographic setting off northern-central Chile is characterized by highly productive waters and an extensive Oxygen Minimum Zone (OMZ), both resultant from coastal upwelling induced by the Humboldt Current…

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Neogene-Quaternary evolution of the La Baja Guajira Basin, Colombia: burial and thermal history with implications on petroleum systems
2022
Leidy Castro-Vera1, Ralf Littke2, Stefan Back2, Rocío Bernal-Olaya3

The La Baja Guajira Basin is the primary gas-producing region of Colombia. This study analyses regional 2D-seismic reflection and borehole data to better understand the Neogene-Quaternary events controlling the basin….

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Nephelinites from the Gregory Rift
2021
Michael Marks1, Michelle Siegel1, Mika Henzler1, Thomas Binder1, Simon Braunger1, Thomas Wenzel1, Anatoly Zaitsev2, Andrei Arzamastsev2, Gregor Markl1

Nephelinites are strongly SiO2-undersaturated volcanic rocks that are often associated with phonolites and carbonatites. In the Gregory Rift in East Africa several major nephelinitic-phonolitic volcanoes occur, with some of them…

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Networking for more Geoscience in School Education – The Geoscience Education Field Officer Initiative
2022
Sylke Hlawatsch1

In 2019, the European Geosciences Union (EGU) began a new initiative to appoint Geoscience Education Field Officers and train them to provide professional development to school teachers who have elements…

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New advances in particle size and shape measurements using complementary optical technologies based on dynamic image analysis
2023
Andre Klicpera1

Determination of particle size distribution of sediments and soils is a crucial property in several fields of industry and geoscientific research. The consequence of improper analyses can result in poor…

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New approach to ferromanganese nodules from the Baltic Sea
2023
Michał Pilaszkiewicz1, Karol Zglinicki2, Agnieszka Wrzosek1, Krzysztof Szamałek1

Polymetallic nodules (including ferromanganese) are one the major metal-bearing sources, those admitted as strategic and critical raw materials (CRMs) by the European Commission. Their widespread on seas’ and oceans’ bottoms…

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New avenues in isotope analyses: The Thermo Scientific™ Neoma™ MC-ICP-MS/MS
2022
Markus Pfeifer1, Grant Craig1, Henning Wehrs1, Claudia Bouman1, Nicholas S. Lloyd1, Johannes B. Schwieters1

Multicollector inductively coupled mass spectrometry (MC-ICP-MS) is irreplaceable in modern isotope ratio mass spectrometry of metals. The advent of this technique paved the way to analyze large parts of the…

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New constraints on the Ivrea Geophysical Body at intra-crustal scales: a combination of gravimetry with passive seismology and rock’s physical properties
2021
Matteo Scarponi, György Hetényi, IvreaArray Team

We present a high-resolution investigation of the Ivrea Geophysical Body (IGB) at intra-crustal scales in the Western Alps. The IGB is a sliver of Adriatic lower lithosphere, located at anomalously…

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New data on the formation of the enigmatic zebra stripes in the Atacama Desert – towards unravelling key mechanisms and time scales of geomorphic processes under extreme hyperaridity
2022
Simon Matthias May1, Dennis Wolf2, Dominik Brill1, Lucas Ageby1, Dirk Hoffmeister1, Benedikt Ritter3, Steven Binnie3, Michael Dietze4, Olaf Bubenzer5

The most enigmatic hillslope forms in the hyperarid core of the Atacama Desert are the so-called zebra stripes, covering slopes between the coastal range and the pre-Andean cordilleras. They are…

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New frontiers in ICP-MS and IRMS analytics – Chances and challenges of high-resolution ICP-MS and IRMS methods
2021
Eiche, Elisabeth; Kluge, Tobias

Continuously improving ICP-MS and IRMS techniques steadily allow smaller sample sizes, higher spatial resolution and the investigation of unconventional isotopes or isotopologues (e.g., ∆48 in carbonates and CO2). These technical…

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New insights in the Late Pliocene and Early Pleistocene vegetation and climate stratigraphy of NW Europe
2020
Timme Henrik Donders (1), Alexander Houben (2), Cohen Kim (1), Ding Hao (1), Krom Lisanne (1), Busschers Freek (2), Dearing Crampton-Flood Emily (3), Verreussel Roel (2) & Peterse Francien (1)

The chronostratigraphy and climate record of the Late Pliocene and Early Pleistocene in Northwest Europe was spurred by pioneering work in the 1960’s by Waldo Zagwijn. This period is particularly…

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New insights into Early Cretaceous continental environments and climate based on lignite-bearing strata from central Mongolia
2023
Fritz-Lukas Stoepke1, Ralf Littke2, Laura Zieger2, Hitoshi Hasegawa3, Niiden Ichinnorov4, Ulrich Heimhofer1

The late Early Cretaceous (121.4 to 100.5 Ma) was characterized by a gradual warming trend superimposed on an already warm greenhouse climate. Whereas the evolution of ocean temperatures during this…

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New insights into global carbon cycle disturbances: a shallow marine record of the Middle Oxfordian Excursion (MOxE) in the Lower Saxony Basin
2023
François-Nicolas Krencker1, Deyan Zhang1, Stefan Huck1, Philipp Ulke1, Michael Schramm2, Ulrich Heimhofer1

The Oxfordian period is characterized by a long-term (ca. 6 Myrs) trend of increasing stable carbon isotope values, punctuated by three short-lived (ca.

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New insights into hyperthermal events during the late Paleocene to early Eocene
2023
Bryan Niederbockstruck1, Heather Jones1, Kazutaka Yasukawa2, Erika Tanaka3, Isabella Raffi4, Thomas Westerhold1, Ursula Röhl1

The late Paleocene and early Eocene climate was punctuated by several warming events known as hyperthermals. These events reflect perturbations in the carbon cycle, identified by the negative carbon isotope…

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New insights into the crust-mantle transition zone beneath fast-spreading mid-ocean ridges: the role of Cr-spinel composition.
2022
Sven Merseburger1, Felix Marxer1, Francois Holtz1, Jürgen Koepke1

The formation of oceanic crust at mid-ocean ridges is one of the dominant processes in the chemical differentiation of our planet. Oceanic crust formed at fast-spreading ridges exhibits a relatively…

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New insights into the Dinocephalosauridae, a recently recognised clade of Triassic marine archosauromorphs, including the identification of its first European member
2023
Stephan N.F. Spiekman1

The diversification of marine reptiles played a major part in the Triassic Revolution and represented the first large-scale return of tetrapods to an aquatic environment. Recently, a new marine archosauromorph…

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New insights into the formation and distribution of Pleistocene tunnel valleys in northern Germany
2023
Sonja Breuer1, Anke Bebiolka1, Axel Ehrhardt1, Vera Noack1, Jörg Lang1

Tunnel valleys are among the deepest erosional structures in formerly glaciated areas. Our project aims to provide a synoptic model of the distribution, dimensions and evolution of Pleistocene tunnel valleys…

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New insights on the influence of biota on the Ce and U redox proxies: Evidence from experimental water-rock interaction with biogenic ligands under anoxic, hypoxic and oxic conditions
2023
Dennis Kraemer1, Timmu Kreitsmann2, Stefan Weyer3, Michael Bau2

Microbes, plants and other organisms actively shape the Earth surface by a variety of processes. Current research on modern systems suggests that biota has a significant impact on the mobility…

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New insights on the role of reverse weathering in determining seawater geochemistry: a lithium isotope study
2022
Charlotte Läuchli1, Nestor Gaviria-Lugo2, Anne Bernhardt1, Hella Wittmann2, Dirk Sachse2, Patrick Frings2

The lithium isotope composition (δ7Li) of ancient seawater is a fundamental proxy for the reconstruction of past conditions on Earth. At any given time, seawater δ7Li depends on the magnitude…

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New matrix-matched reference material for SIMS analysis of oxygen isotopes in gem corundum
2022
Sebastian Schmidt1, Axel K. Schmitt1, Andreas Hertwig1, Ilya Bindeman2, Andreas Pack3, Kevin McKeegan4

The aluminum oxide (Al2O3) corundum is of high economic interest, not least because of its rare gemstone varieties sapphire and ruby. Geochemical analyses are helpful to gain a better understanding…

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New opportunities to unravel the microarchitecture of mineral and organo-mineral associations by NanoSIMS using the upgraded O source
2022
Carmen Höschen1, Steffen A. Schweizer1, Ingrid Kögel-Knabner2

NanoSIMS (nanoscale secondary ion mass spectrometry) allows unique elemental and isotopic analyses at nanometer spatial resolution and provided challenging insights into the architecture of soil organo-mineral constituents and valuable knowledge…

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New phenomena in ESR spectra of iron ores from Kryvyi Rih deposit
2021
Valentyna Dmytrivna Shvets

The electron spin resonance (ESR) spectra of iron ores from Kryvyi Rih deposit have been measured at two different temperatures: 295 K and 150 K. Two samples of ores were…

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New proxies in limnogeology to quantify Quaternary landscape change
2022
Alexander Francke1, Haidee Cadd2, Anthony Dosseto2, Timothy C. Cohen2

Up to 65% of ice-free landscapes are predicted to be directly affected by climate change until the end of the century, a number that increases to 80% if also accounting…

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New raw materials from old mines? – Examples from historic mining sites in Europe
2021
Henrike Sievers

Europe is largely dependent on raw materials imports and has to supply its needs, especially of critical raw materials, from international sources. Nevertheless, Europe also has a long lasting mining…

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New ways to find geoscientific information in Europe. GeoERA GIP-P Search System
Angel Prieto, Margarita Sanabria, Román Hernández & Héctor Sánchez

In Europe there is a considerable amount of geoscientific information of great value to scientists, technicians and to society in general. Discover and access the available information is sometimes not…

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News on the World’s Largest Ammonite, Parapuzosia (P.) Seppenradensis (Landois, 1895) together with a New Associated Stratotype Section and Point for the Base of the Campanian
2023
Christina Ifrim1

The world’s largest ammonite, Parapuzosia (P.) seppenradensis (Landois, 1895), has fascinated the world ever since the discovery in 1895 of a specimen measuring 1.74 metres (m) in diameter near Seppenrade…

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Next step ‚become a geologist‘? Practical approach to senior high school education in geosciences
2020
Andreas Nikolaus Küppers

Attracting young students with high capabilities to a tertiary education in geosciences is of paramount importance for the future progress of Earth sciences and constitutes a central goal in geo-education….

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NFDI4Earth – addressing the digital needs of Earth System Sciences – A
2021
Lars Bernard, Jörg Seegert

NFDI4Earth addresses digital needs of Earth System (ES) Sciences (ESS). ES scientists cooperate in international and interdisciplinary networks with the overarching aim to understand the functioning and interactions within the…

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NFDI4Earth – addressing the digital needs of Earth System Sciences – B Lars Bernard, Jörg Seegert
2021
Lars Bernard, Jörg Seegert

NFDI4Earth addresses digital needs of Earth System (ES) Sciences (ESS). ES scientists cooperate in international and interdisciplinary networks with the overarching aim to understand the functioning and interactions within the…

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NFDI4Earth – First steps towards a national ESS research data infrastructure
2022
Thomas Rose1, Dominik C. Hezel2, Horst R. Marschall3, Lars Bernard4, - NFDI4Earth Consortium5

As part of a major German effort towards a national research data infrastructure, the NFDI4Earth (www.nfdi4earth.de) brings together researchers in the Earth System Sciences, their data, tools, and services to…

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Nine-tailed data monsters? Lessons learnt in the compilation of GlobaLID
2022
Thomas Rose1, Sabine Klein2, Katrin J. Westner3, Yiu-Kang Hsu4

Lead isotope data are an important tool for the reconstruction of raw material provenances of non-ferrous archaeological materials. The quality of the provenance reconstruction depends, among other factors, on the…

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NMR-Relaxometry – a new, reliable and non-destructive method to estimate the fluid content in rock salt
2023
Raphael Dlugosch1, Michael Mertineit1, Michael Schramm1, Stephan Kaufhold1, Lisa Richter1

In the context of the site selection procedure for a high-level radioactive waste repository in Germany, the fluid content in salt rocks is an important parameter to evaluate their barrier…

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No unique temperature of equilibration for mantle peridotites – Thermal histories told by differently diffusing cations based on novel calibrations
2022
Vasileios Giatros1, Dimitrios Kostopoulos1, Panagiotis Pomonis1, Evangelos Moulas2

We generated novel thermometric formulae for cation exchange reactions between mantle minerals involving species of different diffusivities (FeMg orthopyroxene-spinel; CrAl & CaMg clinopyroxene-orthopyroxene) and used them in conjunction with published…

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No unique temperature of equilibration for mantle peridotites – Thermal histories told by differently diffusing cations based on novel calibrations
2022
Vasileios Giatros1, Dimitrios Kostopoulos1, Panagiotis Pomonis1, Evangelos Moulas2

We generated novel thermometric formulae for cation exchange reactions between mantle minerals involving species of different diffusivities (FeMg orthopyroxene-spinel; CrAl & CaMg clinopyroxene-orthopyroxene) and used them in conjunction with published…

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No warming in the eastern Gulf of Mexico since 1845 recorded by a Siderastrea siderea coral from Cuba
2021
Marie Harbott1, Henry C. Wu1, Henning Kuhnert2, Simone Kasemann2, Anette Meixner2, Carlos Jimenez3, Patricia González-Díaz4, Tim Rixen1,5

Changes in the surface ocean pH and temperature caused by the uptake of anthropogenic CO2 are posing a threat to calcifying marine organisms. Recent studies have observed significant impacts on…

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Non-classical crystallisation mechanisms in hyaline foraminifer biomineralisation
2022
Anthea I. Arns1, David Evans2, Ralf Schiebel1, Lothar Fink3, Markus Mezger4, Edith Alig3, Jolien Linckens2, Klaus Peter Jochum1, Martin U. Schmidt3, Anne Jantschke5, Gerald H. Haug6

Foraminifers are an ubiquitous group of marine unicellular organisms, which form shells (tests) made of CaCO­3­­. Since their tests can withstand dissolution and accumulate in the sedimentary record­­­­­, foraminifers are…

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Non-formal and Informal Geoscience Education in a South African Science Centre
2022
Tanja Reinhardt1

Informal educational settings such as science centres play an important role in science education around the world. Science centres are known to have a positive influence on promoting visitors’ curiosity,…

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Non-linear forcing of climate on denudation in the Alps over the last 75 ka
2021
Apolline Mariotti1, Pierre-Henri Blard1,2, Julien Charreau1, Samuel Toucanne3, Stephan Jorry3, Stéphane Molliex1,4, Team ASTER5

Reconstruction of denudation rates through time is an important task to quantify and understand the impact of climate on landscape evolution. Cosmogenic nuclides have been widely used as a tool…

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Non-linear sensitivity of mineral weathering to erosion implies a maximum of CO2 drawdown at moderate erosion rates
2023
Aaron Bufe1, Jeremy K.C. Rugenstein2, Niels Hovius3

Silicate weathering sequesters CO2 from the atmosphere and stabilizes Earth’s climate over geologic timescales. In turn, weathering of accessory carbonate and sulfide minerals is a geologically relevant CO2 source. Rock-uplift…

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Normal faulting around Kolumbo Volcano – exploring relationships between stress fields and volcanism
2023
Gareth Crutchley1, Jens Karsten1, Jonas Preine2, Christian Hübscher2, Haakon Fossen3, Michel Kühn1

The Christiana-Santorini-Kolumbo volcanic field, in the Aegean Sea, has hosted more than 200 explosive eruptions in the past 360,000 years, including the 1650 eruption of Kolumbo Volcano. In this contribution,…

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North Atlantic sea surface temperature evolution across the Eocene–Oligocene transition
2020
Ilja Japhir Kocken (1), Kasper van der Veen (1), Inigo R. Müller (1), Anna Nele Meckler (2) & Martin Ziegler (1)

The Eocene–Oligocene Transition (EOT, ~34 Ma), is marked by the rapid development of semi-permanent Antarctic ice-sheet1. Foraminiferal stable oxygen isotopes (δ18O) as well as Mg/Ca and other indicators (e.g. ice-rafted…

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Not only beautiful crystals – Alpine-type fissures in the light of quartz fluid inclusion, structural and monazite age data
2020
Christian A. Bergemann (1), Edwin Gnos (2), Joseph Mullis, Emmanuelle Ricchi (4), Emilie Janots (5), Alfons Berger (6)

The retrograde evolution of an orogen is characterized by a variety of processes like tectonic activity in the form of doming, brittle-ductile shearing and a general decrease in temperature conditions….

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Novel insights into the end-Triassic extinction from contemporaneous southern African sedimentary basins
2023
Kimberley Chapelle1

The end-Triassic Extinction Event (ETE) lead to the demise of ~76% of species, as well as major biotic transitions in terrestrial vertebrate faunas. These include the shift from a mainly…

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Novel Mantle flow retrodictions reveal preferential material flow in the sublithospheric European mantle
2021
Hans-Peter Bunge1, Siavash Ghelichkhan2, Jens Oeser1

The Cenozoic tectonic evolution of Northern Europe involves a number of events that are difficult to reconcile with an intra-plate setting, including magmatic events and topographic changes that are located…

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Nucleosynthetic Zn isotope anomalies reveal the heritage of Earth’s volatiles
2022
Christoph Burkhardt1, Theodor Steller2, Chun Yang2, Thorsten Kleine1

Determining the provenance of volatile elements in Earth is key for understanding the processes that led to its habitability. Based on volatile element abundances and H and N isotope data…

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Numeric calculation of the arithmetic mean for the particle size – its advantage over the phi scale
2020
Ludwig Biermanns

Calculating the arithmetic mean in particle (grain) size, am, with the phi scale (Folk, 1964: 81), is quite complicated. Its calculation, therefore, should be done in the numeric, or arithmetic…

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Numerical Modeling of the 2007-2009 Lava Dome Growth in the Crater of Volcán de Colima, México
2021
Natalya Zeinalova, Alik Ismail-Zadeh

Volcán de Colima is active andesitic stratovolcano in México located at the height of about 3860 m above sea level. It belongs to the Colima Volcanic complex within the Trans-Mexican…

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Numerical modeling of the stress state around the Enguri power tunnel
2021
Thomas Niederhuber1, Birgit Müller1, Thomas Röckel2, Mirian Kalabegishvili3, Frank Schilling1

The Enguri Dam in NW Georgia is one of the highest arch dams in the world. The 15 km power tunnel was initially flooded in 1978. During the rehabilitation project…

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Numerical Modeling to Study the Impact of Pore Characteristics on the Electric Breakdown of Rock for Plasma Pulse Geo Drilling (PPGD)
2021
Mohamed Ezzat, Daniel Vogler, Benjamin M. Adams, Martin O. Saar

Reducing the cost of drilling is crucial to economically extract deep geothermal energy as drilling costs can reach up to 70% of the total investment budget (Tester et al. 2006)….

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Numerical modeling unravels differences in greisenization processes
2023
Shilei Qiao1, Anselm Loges1, Johannes C. Vrijmoed1, Timm John1

The Zinnwald/Cinovec Sn-W-Li greisen deposit on the border between Germany and Czech Republic in the eastern part of Krušné Hory/Erzgebirge represents a fluorine-rich hydrothermal alteration of a granite-rhyolite association. We…

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Numerical modelling of seasonal underground hydrogen storage in a saline aquifer
2021
Alvaro Sainz-Garcia, Fidel Grandia, Elena Abarca, Jordi Bruno

Current renewable energies are unsteady resulting in temporary mismatches between demand and supply. The conversion of surplus energy to hydrogen and its storage in geological formations is one option to…

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Numerical modelling of sedimentary basins and petroleum systems
2021
Lutz, Rüdiger (1); Nelskamp, Susanne (2); Littke, Ralf (3)

Sedimentary basins contain the vast majority of all energy resources, including coal, petroleum, natural gas but also geothermal energy and are also the most important storage sites for anthropogenic solids…

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Numerical Thermo-Mechanical Modeling of Collision Zones: Investigating Anisotropy Effects using MDOODZ Software
2023
Roman Kulakov1, Irina Medved2, Thibault Duretz1, William Halter3, Stefan Schmalholz3

Understanding collision zones and their geodynamic processes is crucial for comprehending plate tectonics, mountain building, and seismic activities. This study employs the software MDOODZ for numerical thermo-mechanical modelling, specifically designed…

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Observing a century of volcanic morphodynamics using photogrammetric analysis of recent and archive data
2023
Alina V. Shevchenko1, Thomas R. Walter1

Volcanoes are the most dynamic landforms, capable of changing their shape and environment in a matter of minutes, posing a significant threat to the environment and populations. While modern monitoring…

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Observing high pressure melting and crystallization of silicates utilizing MHz diffraction at the European X-ray free electron laser
2022
Clemens Prescher1, Guillaume Morard2, Marzena Baron3, Ryan Stewart McWilliams4, EuXFEL community proposal #22925, EuXFEL community proposal #26056

The opening of the European X-ray Free Electron Laser near Hamburg (EuXFEL) offers promising new experimental opportunities for studying materials. It can deliver X-rays with energies up to 25 keV…

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Occurrences and mineralogy of lithium pegmatite in eastern Canada and for example the Georgia Lake pegmatite in more detail
2021
Stephan Peters, Florian Lowicki, Ernst-Bernhard Teigler, Torsten Gorka, Florian Beier, Jana Rechner

Eastern Canada hosts several occurrences of lithium pegmatite, which have recently come into the focus of exploration activities and detailed studies. Driven by the current and expected future demand for…

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Ohmgebirge Potash Deposit – Confirmation Drilling & Mineral Resource Update
2023
Sabine van der Klauw1, Ricarda Hanemann1

South Harz Potash Limited (SHP) is a publicly listed company on the Australian Securities Exchange (ASX). Through its wholly-owned subsidiary Südharz Kali GmbH, the Company holds the Ohmgebirge mining licence…

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Ohne „in die Kreide zu kommen“ in die Kreide kommen: Günstig produzierte Videos zur Ergänzung geologischer Ausstellungen
2023
Ulrich Kotthoff1, Lioba Thaut1, Julia Pawlowski2

Kleine Museen mit eingeschränkter Finanzierung können oft nur geringe Mittel aufbringen, um mit weiterführenden Material Vitrinen und Ausstellungsobjekte zu ergänzen, zum Beispiel englische Texte oder Tonmaterial für Sehbehinderte. Um spezielle…

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On a new monoclinic SFC polytype
2022
Biljana Krüger1, Janina Grabowski1, Volker Kahlenberg1

Dark red crystals of a silico-ferrite of calcium (SFC) with composition Ca5.34Fe20.55Si2.12O40 have been obtained from synthesis experiments at 1250°C. The SFC phase crystalizes in space group C2/c with the…

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On GPS-IR technique for measuring shallow sediment compaction
2021
Makan Karegar

The solid Earth aspects of relative sea-level change can dominate in low-lying coastal areas with potentially vulnerable to accelerating rates of sea-level rise. Global Positioning System (GPS) as companion tools…

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On Mesozoic uplifts along the SW edge of the East European Craton – new insight from regional onshore (PolandSPAN) and offshore (BalTec) seismic reflection data from Poland
2021
Piotr Krzywiec1, Łukasz Słonka1, Aleksandra Stachowska1, Quang Nguyen2, Michał Malinowski2, Christian Huebscher3, Regina Kramarska4, Niklas Ahlrichs5

East European Craton (EEC) in Poland has been recently studied by onshore PolandSPAN and offshore BalTec regional seismic surveys. PolandSPAN data imaged earliest Late Jurassic, earliest Late Cretaceous and mid-Late…

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On the Analyses and Interpretation of Lithium Isotopes
2022
Maxwell Marzban Thiemens1, Laetitia Pichevin1, Raja Ganeshram1, Bryne Ngwenya1

Lithium (Li) is one of the fundamental metals used in modern and future technologies. Even with how critical it is in modern society, demand for Li will only increase in…

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On the genesis of post-subduction porphyry copper magmas
2022
Jia Chang1, Andreas Audetat1

For subduction-related porphyry Cu deposits, it is generally agreed that the ore-forming magmas fractionate from mafic magmas produced by slab fluid±melt-fluxed melting of the asthenospheric mantle wedge. This model, however,…

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On the impact of the bedrock erodibility on the depositional response time to a slab break-off using stratigraphic forward modelling
2023
Paul Baville1, Andrea Piccolo2, Marcel Thielmann2, Nevena Andrić-Tomašević1

Slab break-off is a geodynamic process in which the lower portion of a subducting plate detaches from its uppermost one. This process changes the force balance acting on the lithosphere…

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On the infrasound emission generated by wind turbines
2021
Lars Ceranna, Peter Gaebler, Gernot Hartmann, Patrick Hupe, Christoph Pilger, Andreas Steinberg

Aerodynamic infrasonic signals generated by wind turbines can be detected by highly sensitive micro-barometers showing spectral peaks at the blade passing harmonics, which are above the background noise level. As…

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On the nonexistence of a Saxo-Thuringian Ocean – a review
2023
Uwe Kroner1, Rolf L. Romer2

As demonstrated by the Saxo-Thuringian Ocean, some regional geological models originated prior the advent of plate tectonics and evolved little since. Despite the abundance of facts that neither prove nor…

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On the trail of oxygenic photosynthesis in ancestral Cyanobacteria on early Earth.
2022
Michelle Martine Gehringer1, Joanne Boden2, Tristan Enzingmüller-Bleyl1, Sadia Tamanna1, Katharina Ebel1, Kimberly Kaiser1, Thorsten Bauersachs3

While oxygenation of the atmosphere on early Earth is attributed to cyanobacterial oxygenic photosynthesis, the limitations on their expansion is not well understood. Our worked is focussed on assessing the…

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On-site hydraulic and mechanical characterization of a claystone around a non-lined test tunnel in Mont Terri, Switzerland
2021
Sina Hale1, Xavier Ries1, David Jaeggi2, Philipp Blum1

The rock mass around man-made underground structures inevitably experiences major changes in hydraulic and mechanical properties, commonly referred to as excavation damage. In host rock formations for underground nuclear waste…

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OneGeochemistry; Paving the way to true Interoperability in Geochemistry Data
2022
Alexander Martijn Prent1, Marthe Klöcking2, Lesley Wyborn3, Kerstin Lehnert4, Kirsten Elger5, Dominik Hezel6, Lucia Profeta4, Geertje ter Maat7

Geochemical data have been collected since the 19th century and are essential for geoscientific research as well as contributing to solving societal issues. Typically local or regional questions are solved…

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OneGeochemistry: Enabling a coordinated online global network of multiple distributed geochemical repositories and databases
2021
Kerstin Annette Lehnert1, Lesley Wyborn2, Dominik Hezel3, Alexander Prent4, Kirsten Elger5, Geertje ter Maat6, Marthe Klöcking7, Jens Klump8

Since the discipline of ‘geochemistry’ was first defined in 1838, geochemical data has been pervasively acquired and used in the Earth, environmental and planetary sciences and become fundamental for understanding…

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OneGeochemistry: Global Cooperation for FAIR Geoanalytical Data Policy and Practice
2023
Kerstin Annette Lehnert1, Lesley Wyborn2, Marthe Klöcking3, Alexander Prent4, Dominik Hezel5, Kirsten Elger6, Lucia Profeta1, Rebecca Farrington4, Angus Nixon7

Geochemical data are pervasively acquired in the Earth, environmental, and planetary sciences, as they offer unique evidence for past and present processes in the natural world that advance scientific knowledge…

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OneGeoscience: Providing FAIR global access to all geoscience data – are we there yet?
2023
Lesley Wyborn1

Geoscience deals with all fields of natural science related to understanding past, current and future states of the Earth and the terrestrial bodies. Geoscience has many sub-disciplines that have strong…

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Open Data and more in the Geosciences – an introduction to GFZ Data Services
2023
Kirsten Elger1, Simone Frenzel1, Florian Ott1

For more than a decade, there is an increasing international demand for free and open access to publicly funded scientific research products. These include “classical” text manuscripts, data and software…

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Open Science – more than Open Access
2022
Kirsten Elger1

The Berlin Declaration from 2003 was the starting point for Open Access to scholarly publications. Today, however, we speak about Open Science that reaches far beyond Open Access and represents…

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Open-source and open data: combining both worlds for optimised decision making in geological subsurface models
2021
Florian Wellmann1, Miguel de la Varga2, Alexander Jüstel3

Open data and open-source code are influencing each other: the availability of open data sparks new developments for data analysis and processing. Open-source codes on the other hand have the…

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Opportunities for hydrogeothermal uses in NE Germany: from site evaluation to project realization
2023
Karsten Obst1, Matthias Franz2, Markus Wolfgramm3

Low enthalpy geothermal systems are well established in north-eastern Germany. The first German hydrothermal doublet started heat production in Waren/Müritz in 1984. Since then other sites in Mecklenburg-Western Pomerania and…

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Optical clumped isotope thermometry of carbon dioxide and methane
2022
Ivan Prokhorov1, Akshay Nataraj1, Béla Tuzson1, Nico Kueter2, Ricarda Rosskopf2, Tobias Kluge3, Christof Janssen4, Lukas Emmenegger1, Stefano M. Bernasconi2, Joachim Mohn1

Clumped isotope thermometry exploits the relative abundance of doubly substituted isotopologues to decipher the formation temperature of minerals. Here we present a promising approach based on mid-IR laser absorption spectroscopy…

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Optimized coverage of potash tailings piles
2021
Lydia Rösel

Saline contaminants from potash mining endanger aquatic ecosystems. Uncovered potash tailings piles release high amounts of chloride and sodium. Conventional coverage systems with a transpiration-intensive vegetation on a soil layer…

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Optimized sequential extraction for chromium from laterite deposits
2022
Ruth Esther G. Delina1, Jeffrey Paulo H. Perez2, Jessica A. Stammeier2, Roberts Blukis2, Liane G. Benning1

Chromium is naturally enriched in nickel laterite deposits, the world’s main source of nickel. Both of its main redox species (III and VI) are important, but Cr(VI) is the more…

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Orbital and glacial/interglacial forcing reflected by integrated environmental magnetic and colorimetric parameters of a loess-palaeosol sequence in the middle Danubian Basin for the last 430 ka
2020
Christian Laag (1,2,3), Christian Zeeden(2), Ulrich Hambach (3,4), , Mladjen Jovanovic (5) and Slobodan Marković (5,6)

Loess-palaeosol sequences (LPSs) are valuable records of Quaternary environmental change especially in the northern hemisphere. In Eurasian LPS, the alternation of loess and palaeosol intervals reflects the uninterrupted but fluctuating…

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Orbital forcing of past climates
2022
Jonas Schandl1, Andre Bahr1, Christian Zeeden2, Thomas Wonik2, Sonja Wedmann3, Olaf Lenz4, Stefanie Kaboth-Bahr5

The annually laminated oil shale from the Eocene maar lake at Messel (Germany) provides an exceptional sedimentary archive to study the early to middle Eocene climate in central Europe. In…

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Orbital forcing of Triassic megamonsoon activity documented in lacustrinesediments from Ordos Basin, China
2020
Runjian Chu (1), Huaichun Wu (1), Rukai Zhu (2) & Qiang Fang (1)

The “hothouse” Triassic climate provides a key window to study megamonsoon systems. However, high-quality paleoclimate proxy records are rarely reported from the Tethys realm, where the seasonal meridional migration of…

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Ordovician-Devonian black slates from the Rhenohercynian and Truchas basins – deposition and diagenesis
2023
Edouard Grigowski1, Tom McCann1

Mud-rich successions can be challenging to interpret accurately, since sedimentary structures such as cross-bedding and ripple marks are often scarce or absent. This makes it difficult to determine the exact…

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Ore mineralogy and metal deportment of Fe-Ni-Co laterite deposits from Sebuku Island, SE Kalimantan, Indonesia
2023
Michele Giorno1, Alkiviadis Kontonikas-Charos2, Ernowo Ernowo3, Yudhi Krisnanto4, Max Frenzel1

Indonesian laterite deposits are a major source of Ni and Co. Here, we present new geological data on the Sebuku laterites (SE Kalimantan, Indonesia), with a resource of ~390 Mt…

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Organic geochemical data of higher plant coals from Svalbard and Northeast Greenland reveal implications for a connected Paleogene setting
2022
Franz Philip Kerschhofer1, Martin Blumenberg2, Lutz Reinhardt2, Volker Thiel1

The organic geochemistry of Paleogene coals from central Spitsbergen (Longyearbyen and Grumantbyen) and northeast Greenland (Thyra Ø Island and Kronprins Christian Land), which were sampled during a BGR expedition in…

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Organo- and lithofacies variations of the Pliensbachian-Toarcian (Early Jurassic) sedimentary succession in the Hils Synline, Lower Saxony Basin: Implication on paleoenvironmental reconstruction
2023
Linda Burnaz1, Sebastian Grohmann1, Jochen Erbacher2, Lukas Elzer3, Harald Strass3, Ralf Littke1

The widespread deposition of Lower Toarcian (Early Jurassic) black shales throughout NW Europe has often been associated with a global oceanic anoxia event, the Toarcian Oceanic Anoxic Event (T-OAE). However,…

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Origin of highly siderophile element fractionation and excess 187Os in rocks from the CM-1 core of the Oman Drilling Project (Oman ophiolite)
2022
Harry Becker1, Saskia Weitkamp1, William Lindsay Fleming1, Alea Zoe Kaehne1, Jessica A. Stammeier2, Philipp Gleissner1, J. Elis Hoffmann1, Eiichi Takazawa3, Jürgen Köpke4

The southern massifs of the Oman ophiolite were often considered as a model for the structure and composition of crust at fast-spreading ocean ridges. However, the influence of late-stage convergent…

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Out in the Field – Digital Documentation from Dirt to Desktop
2021
Jens Klump1, Shawn Ross2, Nathan Reid1, Brian Ballsun-Stanton2, Steve Cassidy2, Penny Crook2, Ryan Noble1, Adéla Sobotkova3

Documentation of sample collection and instrument deployment in the field is time-consuming, error-prone and laborious. Even though best practices in research data management suggest that data should be captured in…

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Out-of-plane permittivity of nanoconfined geofluids: a molecular dynamics study
2022
Alireza Chogani1, Oliver Plümper1

In fluid-driven mineral replacement reactions, reaction-induced porosity generation is one of the most important mechanisms that provide fluid pathways into the reaction front. Our multi-scale electron microscopic imaging techniques show…

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Overview of the ecological situation of open pit lakes of the lignite mining in Germany
2023
Jessica Ramm1, Brigitte Nixdorf2, Klaus van de Weyer3

The EU Water Framework Directive (WFD) demands a good ecological status or ecological potential for natural and artificial lakes larger than 50 ha until 2027. More than 100 artificial mining…

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Oxygen isotope variations in cherts from the Rhenish Massif record their diagenetic history, not climatic variations
2023
Michael Tatzel1, Katharina Ebert1, Patrick Frings2, Tommaso di Rocco1, Andreas Pack1, N. Keno Lünsdorf1

Cherts are sturdy and ubiquitous throughout Earth history and therefore potentially ideal climatic archives, yet their diagenetic formation challenges straightforward interpretations. Previous work shows that oxygen isotope ratios (δ18Ochert) are…

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Palaeofloral response to base level changes in the late Permian Bowen and Galilee basins (Australia)
2021
Alexander Wheeler1, Joan Sharon Esterle2, Annette Elizabeth Götz3

A variety of depositional environments characterise the infill of the late Permian Bowen and Galilee basins. These range from proximal fluvial-floodplain sequences and significant coal deposits through to more distal…

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Palaeogeothermal history reconstruction as background for geothermal projects via clay minerals and organic matters
2021
Nguyen, Thanh Lan; Ferreiro Mählmann, Rafael

Nowadays, geothermal energy could play an important role and source of renewable energy in replacing fossil fuels. In order to exploit effectively this potential, the suitable applied methods, and objectives…

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Palaeomagnetic analyses in the Atacama Desert – challenges and chances
2022
Stephanie Scheidt1, Volker Wennrich1, Patrick Grunert1, Jassin Petersen1, Pritam Yogeshwar1, Martin Melles1

Magnetic polarity stratigraphy and magnetic palaeointensity stratigraphy is often used on sedimentary rocks to correlate outcrops and establish chronologies. The concept is based on the assumption that dipolar geomagnetic variations…

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Paleoclimate Controls on Borehole Geophysics Signals in Lacustrine Deposits of Lake Chalco, Central Mexico
2022
Mehrdad Sardar Abadi1, Christian Zeeden1, Arne Ulfers1, Thomas Wonik1

Understanding the moisture history of low latitudes from the most recent glacial period of the latest Pleistocene to post-glacial warmth in continental tropical regions is hampered by the lack of…

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Paleoclimate reconstruction using Pleistocene paleosols along the middle Atbara River in Eastern Sudan
2021
M. Mohammednoor1,2,3, R. Bussert1, S. Tsukamoto4, M. Richter4, O. El Bedri5, B. Kraatz6, K. Salih7, J. Müller2, A. Eisawi7, F. Bibi

Along the middle Atbara River, Pleistocene alluvial sediments dated to ~200 to 20 ka are exposed in eastern Sudan over a length of about 200 km with a maximum thickness…

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Paleogene deformation pattern and Neogene post-collisional reorganization of the Dinarides fold and thrust belt
2023
Philipp Balling1, Bruno Tomljenović2, Christoph Grützner1, Wim Spakman3, Marijan Herak4, Kamil Ustaszewski1

The Late Cretaceous collision of the Adriatic microplate with Eurasia resulted in an overall SW-vergent and in-sequence structural architecture of the Dinarides. In the Paleogene the deformation propagated from the…

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Paleogene polar plankton and paleoproductivity: new proxy data from the Eocene – Oligocene transition
2021
Gayane Asatryan, Volkan Özen, Gabrielle Rodrigues de Faria, David Lazarus, Johan Renaudie

Polar plankton plays a large role in global carbon cycling. There is a significant lack of knowledge of these biotas, however. The main goal of our project is to understand…

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Paleoseismic and -tectonic structures in Hamburg and Peissen (Schleswig-Holstein)
2023
Alf Grube1

Paleoseismic investigations in Hamburg and Peissen document paleo-earthquake structures, e.g. large clastic dykes, infill structures, complicated folds, fault-systems and vertical injections as larger structures. Smaller structures include special forms of…

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Parameters for the design of HDD installed power cables in soil and rock
2020
Ingo Sass (1,2), Maximilian Eckhardt (1) & Markus Schedel (1,2)

When operating buried power cables, the mechanical and thermal properties of the cable bedding need to meet certain requirements. On the one hand, positioning and protection of the cable and…

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Parametric optimization and comparative study of an organic Rankine cycle power plant for two-phase geothermal sources
2021
Chaofan Chen1,2, Francesco Witte3, Ilja Tuschy3, Olaf Kolditz1,2, Haibing Shao1

For two-phase geothermal resource, Organic Rankine Cycle (ORC) based binary plant is often applied for power production. In this work, a network topology was built with the Thermal Engineering Systems…

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Participation of Potential Visitors in an Exhibition Concept Based on an Online Survey
2021
Lina Seybold1, Simon Schneider1, Malte Junge2, Melanie Kaliwoda2, Gilla Simon1

A new Geosciences campus will be built in central Munich, that will also house an innovative exhibition on geosciences, the Forum der Geowissenschaften. A team of scientists, curators and museum…

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Particle-mediated origins of mesocrystallinity in calcium sulfate single crystals
2022
Tomasz Maciej Stawski1, Alexander E.S. Van Driessche2

Calcium sulfate minerals are abundant in natural and engineered environments in the form of three phases: gypsum (CaSO4·2H2O), bassanite (CaSO4·0.5H2O), and anhydrite (CaSO4). Due to their relevance in natural and…

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Partitioning of organic carbon across submarine slope environments
2023
Yvonne Spychala1, Jutta Winsemann1, Miquel Poyatos-Moré2, Martin Blumenberg3

Although the burial of organic carbon in submarine fans and its importance for the carbon cycle have recently received growing attention, our understanding of the mechanisms at play is still…

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Passive sampling of labile dissolved trace metals in the deep sea: a suitable monitoring tool for marine mining activities?
2023
Katja Schmidt1, Sophie Anna Luise Paul2

Analytical challenges such as low concentrations and a saline matrix, contamination risks during sampling and analysis, and the accessibility of remote ocean areas limit available methodologies for the investigation of…

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Passive Subsurface Characterisation (PSC): Using the groundwater response to Earth tides and atmospheric pressure
2021
Gabriel C. Rau, Philipp Blum

Characterising subsurface hydraulic and geomechanical properties is a prerequisite for Earth resource management. Traditional approaches such as hydraulic testing are costly and require specific infrastructure as well as expertise which…

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Passive Subsurface Characterisation (PSC): Using the groundwater response to Earth tides and atmospheric pressure
2021
Gabriel C. Rau, Philipp Blum

Characterising subsurface hydraulic and geomechanical properties is a prerequisite for Earth resource management. Traditional approaches such as hydraulic testing are costly and require specific infrastructure as well as expertise which…

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Peak Ring Magnetism: Rock- and mineral-magnetic properties of the Chicxulub impact crater
2021
Bruno Daniel Leite Mendes1, Agnes Kontny1, Ksenia Gaus1, Bonny Kuipers2, Mark Dekkers2

Large impact structures on Earth like the Chicxulub in Mexico are characterized by magnetic highs but the magneto-mineralogical origin is still poorly constrained and impact-generated melt versus hydrothermal activity models…

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Pedras: Modal mineralogy approximations from assay data using Bayesian inference
2023
Angela Afonso Rodrigues1, Lachlan Grose1, Laurent Ailleres1, Scott Halley2, Angela Escolme3, Robin Armit1, Mehrtash Harandi1, Matthew Cracknell3

Mineralogy evaluation is critical to understand a deposit’s mineralogical variability, and inform decisions associated with ore beneficiation. Elemental-to-mineral conversion techniques (EMC) are a popular method to rapidly estimate a sample’s…

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PERBAS: An International Project to Study Potential Sites for the Permanent Offshore Storage of CO2 in Marine Basalts
2023
Sebastian Hölz1, Jörg Bialas1, Jyotirmoy Mallik2, Viktoriya Yarushina3, Stephane Polteau3, Manika Prasad4, Nimisha Vedanti5, Sverre Planke6, Ravi Sharma7, Gerald Klein8, Markus Krieger9

CO2 neutrality by 2045 requires increasing the currently worldwide achieved CO2 storage volume (40 Mt/y) to the order of tens of Gt/y. With current storage techniques, CO2 often remains in…

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Performance of manganese oxide sorbents for direct lithium extraction from geothermal brines
2021
Klemens Slunitschek, Jochen Kolb, Elisabeth Eiche

Lithium is one of the critical elements for the realization of electric mobility and energy transition. With a contribution to global Li-production and recycling of less than 1% (2017), Europe…

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Permeability available for VMS source fluids in altered and fractured lavas in the oceanic crust, Semail ophiolite, Oman
2021
Alannah C. Brett, Larryn W. Diamond

The distribution of permeability in the upper oceanic crust controls hydrothermal circulation and the water–rock interactions that feed seafloor mineralization. A prevailing view is that lavas behave as fractured aquifers…

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Petalite – The Underdog in the Lithium Business?
2023
Nico Kropp1, Gregor Borg1

Petalite was the first mineral in which lithium was detected, but its economic importance is less than that of the lithium-rich spodumene. Both minerals occur in pegmatitic deposits (LCT pegmatites),…

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Petrographic and geochemical analysis of meteorite NWA 12547 with inverse zoned chondrules
2022
Fabio Joseph1, Melanie PD Dr. habil. Kaliwoda2, Malte Dr. Junge2

The best researched planetary system is our solar system. But even here we know very little about chemistry and composition of the bodies. In order to really explore and understand…

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Petrographic characterisation of the Algeciras Unit, Campo de Gibraltar Complex, S Spain
2021
Heike Koch, Tom McCann

The Cenozoic-age Algeciras Unit is a deep-marine unit cropping out between Algeciras and Tarifa and forms part of the Campo de Gibraltar Complex (Flysch Trough Units) of southern Spain. The…

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Petrographic, mineralogic, geochemical and geo-morphological provenience study on granite stelae from the Beira Alta (Beira Interior, Portugal)
2023
Rafael Ferreiro Mählmann1, Ralph Araque Gonzalez2, Pedro Baptista3, Dirk Scheuvens1, Giuseppe Vintrici2, Marcos Osorio4

Of twelve stelae from the Late Bronze Age (c. 1200-800 BC) that are exhibited in five museums in the Beira Interior (Portugal), ten are carved in granitoid rocks of mainly…

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Petrographical and petrophysical properties of tight siliciclastic rocks from the Ibbenbueren coal mine with regard to mine flooding
2022
Dennis Quandt1, Benjamin Busch1, Helena Fuchs2, Aura Alvarado de la Barrera1, Jonas Greve3, Christoph Hilgers1

With regard to high production costs and the energy transition, German hard coal mining was phased out in 2018. As mine water drainage becomes economically and technically redundant, the mine…

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Petrography and Geochemistry of the Kohistan Batholith Granitoids from the Central Kohistan Magmatic Arc, Northern Swat, Pakistan
2022
Tanveer Ahmad1, M. Qasim Jan2, Kirsten Drüppel3

The E-W trending Kohistan magmatic arc developed as an intra-oceanic island arc during the Cretaceous and became an Andean-type margin during Early Tertiary after collision with Karakoram plate. The Kohistan…

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Petrography and geochemistry of the Middle–Upper Jurassic Banik section, northernmost Iraq – Implications for palaeoredox, evaporitic and diagenetic conditions
2021
Nagham Omar1, Tom McCann1, Ali I. Al- Juboury2, Sven Oliver Franz1

Lithological, petrographic, and geochemical analysis of the Middle to Upper Jurassic succession (i.e. Sargelu and Naokelekan formations) from northernmost Iraq were undertaken. The aim was to provide an updated discussion…

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Petrology and Geochronology of foidites and melilitites in SW Germany and E France
2021
Thomas Binder1, Benjamin F. Walter2, Michael A. W. Marks1, Axel Gerdes3, Aratz Beranoaguirre3, Thomas Wenzel1, Gregor Markl1

Foidites and melilitites are strongly SiO2-undersaturated rocks that form by extremely low degrees of partial melting of the metasomatically overprinted lithospheric mantle. In Central Europe, they occur in volcanic fields,…

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Petrophysical Evaluation of Nubian Sandstone Reservoir Sarir Field – Southeast Sirt Basin
2020
Reema Omar Mohammed

The work was carried out to evaluate the petrophysical characteristics of Nubian sandstone in Sarir field. The data used in this study were mainly wire-line logs from three wells (D11-BLK9,…

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Phase mixing in the Lanzo upper mantle shear zone (Italy)
2020
Sören Tholen & Jolien Linckens

How fine-grained, well-mixed (ultra)mylonitic layers in the upper mantle form is still unclear. Here, microfabrics displaying the transition from porphyroclasts to mixed assemblages were analyzed regarding their phase assemblage, grain…

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Phosphate inhibition of schwertmannite nucleation
2022
Helen Elizabeth King1, Sergej Seepma1, Mariette Wolthers1

The iron(III) phosphate mineral schwertmannite has shown potential for the removal of oxyanions such as phosphate and arsenate through their adsorption [1,2] and incorporation into the schwertmannite structure [3]. Here…

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PHREEQC modeling approaches for characterizing lithium release from rock during geothermal plant operation
2023
Felix Jagert1, Felix Coenen2, Max Berndsen1, Katharina Alms1

The poster presents the framework of the modeling part of the BMWi-funded project „Li-Fluids“ (grant number: 03EE4034A). It introduces PHREEQC modeling approaches for simulating lithium-bearing minerals in geothermal reservoirs. By…

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Physics of microfabric generation: insights from a new deformation theory
2022
Falk H Koenemann1

The mechanics of solids theory from the 18th C is obsolete since energetic physical thinking, thermodynamics, and bonds in solids were discovered in 1840-1870. Elastic deformation is by nature a…

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Pleistocene landscape evolution of Southern Patagonia: Insights from 10Be Dating of Fluvial Terraces
2023
Victoria Milanez Fernandes1, Taylor Schildgen1, Andreas Ruby1, Hella Wittmann1, Fergus McNab1

Southern Patagonia hosts uniquely well-preserved fluvial cut-and-fill terraces, formed along rivers fed by glacial meltwater, recording the onset of a regional phase of net incision. However, the timing and driving…

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Polarons in amphiboles: evidence from resonance Raman scattering and DFT calculations
2022
Boriana Mihailova1, Simone Bernardini2, Naemi Waeselmann1, Giancarlo Della Ventura3, Wei Xu4, Augusto Marcelli5, Jochen Schlüter6

The properties of rocks are determined from the physical properties of minerals composing the rock, which in turn ultimately depend on the crystal phonon modes and electron density of states….

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Pore Detection and modelling with Deep Neural Networks
2020
Christoph Schettler

The description of drilling probes due to their porosity is an important research subject in terms of searching for nuclear waste repositories. Th current techniques use raster electron microscope pictures…

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Pore-scale modeling of acid etching in a carbonate fracture
2021
Renchao Lu1, Xing-yuan Miao2, Olaf Kolditz1,3,4, Haibing Shao1

Acid fracturing technique has been widely used in the oil and gas industry for improving the carbonate reservoir permeability. In recent years this chemical stimulation technique is borrowed from the…

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Pore-scale study of cyclic injection and microbial activity on H2 recovery and loss mechanisms during underground H2 storage
2023
Na LIU1, Maksim Lysyy1, Nicole Dopffel2, Martin Fernø3

Underground H2 storage (UHS) in salt caverns, deep saline formations, and depleted oil/gas reservoirs has emerged as a reliable and safe technology for storing renewable energy and reducing carbon dioxide…

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Post-glacial climate amelioration recorded in the early Permian Aramac Coal Measures (Galilee Basin, Australia)
2023
Alexander Thomas Wheeler1, Ulrich Heimhofer1, Joan Sharon Esterle2, Ralf Littke3, Laura Zieger3

The end of the Late Palaeozoic Ice Age (LPIA) was characterized by the development of widespread peat-forming mires across Gondwana concurrently with the evolution of the Glossopteris­-flora. The Aramac Coal…

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Post-mining: Opportunities and challenges
2021
Quandt, Dennis (1); Rudolph, Tobias (2); Hilgers, Christoph (1)

After the closure of mines in Germany, former districts are nowadays subject to changes, which may require geomonitoring. This concerns the mine water management in particular as pumping of mine…

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Postglacial slip distribution along the Teton normal fault, northeastern Basin-and-Range Province (Wyoming, USA) derived from tectonically offset geomorphological features
2021
Andrea Hampel1, Ralf Hetzel2, Maria-Sophie Erdmann2

Along the eastern front of the Teton Range, northeastern Basin-and-Range Province, well-preserved fault scarps that formed across moraines, river terraces and other geomorphological features indicate that multiple earthquakes ruptured the…

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PostMinQuake: Potential Learnings of induced seismicity during post-mining in European coal regions
2021
Maria Paloma Primo Doncel, Peter Goerke-Mallet, Stefan Möllerherm, Tobias Rudolph

The task of this European research project (PostMinQuake) is to identify mechanisms, relevant parameters and dependencies causing post-mining seismicity for several European coal regions.   When closing an underground coalmine,…

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Postnatal growth rates of the dwarf hippo Phanourios minor from the Pleistocene of Cyprus
2020
Anneke H. van Heteren(1,2,3) & P. Martin Sander (4)

Cyprus, in the Pleistocene, was extremely isolated from a geological and biogeographical point of view. Only two macromammals successfully colonised the island before the Holocene: Elephas cypriotes, approximately 1.4 metres…

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Potassium isotope systematics in ocean island basalts from Madeira (East Atlantic) imply recycling of distinct portions of subducted oceanic crust
2022
Haiyang Liu1, Ying-Yu Xue1, Jörg Geldmacher2, Uwe Wiechert3, Tinggen Yang4, Fanfan Tian4, Hai-Ou Gu5, He Sun5, Kun Wang6, Wei-Dong Sun4

Subduction of oceanic lithosphere is widely considered as the primary cause of mantle heterogeneity as reflected by the chemical variation of ocean island basalts. However, the fate of deeply subducted…

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POTENTIAL CO2 STORAGE SITES IN THE GERMAN NORTH SEA? A RESERVOIR-MODELLING AND PARAMETRIZATION STUDY
2023
Astrid Schlieder-Kowitz1, Felix Kästner1, Arne Fuhrmann1, Hauke Thöle1, Gesa Kuhlmann1, Heidrun Louise Stück1, Frithjof Bense1, Björn Zehner1

Carbon dioxide removal and storage is required for limiting global warming to the 2 °C goal of the Paris Agreement. One method is the storage of CO2 in deeply buried…

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Potential flach lagernder Salzformationen in Deutschland als Standort für ein Endlager für wärmeentwickelnde radioaktive Abfälle
2021
Till Popp, Ralf Günther, Dirk Naumann

Seit 2013 hat in Deutschland die Standortsuche für ein Endlager für hochradioaktive Abfälle mit dem ersten Standortauswahlgesetzes (StandAG) neu begonnen. Viele Jahrzehnte lang wurde in Deutschland die Entwicklung von Endlagerkonzepten…

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Powering primordial life – endogenous-exogenous interactions in Earth’s oldest habitats
2021
Helge Mißbach

Hydrothermal activity, triggered by endogenic processes, distributes and redistributes organic matter through diffuse flow networks and may lead to a production of organic matter via abiotic synthesis. Today, hydrothermal seepage,…

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Pre-Cenozoic paleoclimate responses to astronomical forcing
2023
David De Vleeschouwer1, Lawrence M.E. Percival2, Nina Wichern1, Sietske J. Batenburg3

Astronomical insolation forcing is now well-established as the underlying metronome of Quaternary ice ages and Cenozoic climate carbon-cycle feedback mechanisms. However, its effects on earlier Eras (Mesozoic, Paleozoic, and pre-Cambrian)…

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Pre-processing of gravity data for 3 D-modelling of the lithospheric underground in the Ligurian Sea
2021
Philipp Tabelow, Hans-Jürgen Götze

The Ligurian Sea in the western Mediterranean Sea is a back arc basin created through the Apennines Calabrian subduction zone between 30 and 15 Ma ago. The inner geological structure…

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Pre-Variscan (Lower Devonian) deformation of the Silurian magmatic arc of the East Odenwald (Mid-German Crystalline Zone, Variscides)
2021
Henri Paul Meinaß1, Wolfgang Dörr2, Eckardt Stein1

The Böllstein Odenwald is forming a large anticline of mainly pre-Devonian rock in the Mid-German Crystalline Zone (MCGZ). The contact between core and schist envelope of the anticline is well…

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Precise Pb-Pb ages derived from lunar impact breccias: the key to dating large lunar basins
2023
Harry Becker1, Thomas Haber2, Dennis Vanderliek1, Wajiha Iqbal2, Tiantian Liu3, Erik Scherer2, Winfried Schwarz4, Martin Whitehouse5, Carolyn H. van der Bogert2, Harald Hiesinger2

Understanding the early lunar bombardment history hinges on reliable formation ages of the large lunar basins. Recent studies have shown that Zr minerals and Ca phosphates in petrographically, chemically, and…

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Precise Timing of Permian-Carboniferous magmatism in Saxothuringia
2023
Marion Tichomirowa1, Alexandra Käßner1

Here we present published and new age data of plutonic and volcanic rocks from Saxothuringia obtained by the high-precision CA-ID-TIMS U-Pb zircon dating method. This method has an uncertainty of…

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Precision, accuracy, and trueness: Bursting myths on portable XRF
2023
Kathrin P. Schneider1, Mareike Gerken1, Roald Tagle1, Falk Reinhardt1, Nigel Kelly1, Andrew Menzies1, Christian Hirschle1

Handheld and portable X-ray fluorescence (XRF) spectrometers have evolved in recent years from being primarily used as metal sorting tools in scrap yards to becoming instruments of high analytical performance….

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Preliminary cyclostratigraphy on planktonic foraminifera from IODP-Hole U1406A
2020
Alessio Fabbrini (1), Luca Foresi (2) & Fabrizio Lirer (3)

Cyclostratigraphy reconstructs astronomical-periodic signals in quantitative data from climate-sensitive proxies, as microfossils, carbonate content, isotopic data or any physical properties measurable at sufficient resolution. The astronomical cycles strongly influence the…

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Preliminary results of in situ trace elements analyses of base metal sulfides from the sediment-hosted Dolostone Ore Formation (DOF) copper-cobalt deposit, northwestern Namibia
2020
Viktor Bertrandsson Erlandsson (1), Rainer Ellmies (2), Frank Melcher (1), Daniela Wallner (1) & Johann Raith (1)

Preliminary results of in situ trace elements analyses of base metal sulfides from the sediment-hosted Dolostone Ore Formation (DOF) copper-cobalt deposit, northwestern Namibia

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Preservation of the geological and industrial heritage of a post-mining landscape by the example of the glacial Muskau Arch
2021
Kersten Löwen

The Muskau Arch in the border triangle of Brandenburg-Saxony-Poland is a push moraine that was folded up by the Muskau Glacier during the second Elster surge about 340,000 years ago….

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Pressure anomaly of the ATP hydrolysis rate facilitates life of extremophiles
2022
Christoph Moeller1, Christian Schmidt2, Denis Testemale3, Francois Guyot4, Max Wilke1

Life is prevalent on Earth even in extreme environments, e.g., near black smokers. This biological community has to face temperatures of up to 120 °C and pressures of 40 MPa….

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Prevailing deteriorated palaeoenvironments related to the hyperthermal Permian-Triassic mass extinction
2023
Zhicai Zhu1, Yongqing Liu2, Hongwei Kuang2, Alex J. Farnsworth3, Andrew J. Newell4, Michael J. Benton3

The Permian-Triassic mass extinction, one of the most severe biotic crises in Earth’s history, has been attributed to sharp heating (nearly 15°C in low-latitude areas) initially triggered by massive volcanic…

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Probabilistic Geomodeling: Recent Developments and Relationship to Reality
2020
Florian Wellmann (1,2,3), Miguel de la Varga (1,3), Jan von Harten (1,3), Alexander Schaaf (4), Elisa Heim (1,5), Fabian Stamm (3), Zhouji Liang (1,2), Stefan Crummenerl (1), Alexander Jüstel (1,6) & Nilgün Güdük (1)

Geological models, as 3-D representations of subsurface structures and property distributions, are used in many economic, scientific, and societal decision processes. These models are built on prior assumptions and imperfect…

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Probabilistic Machine Learning for improved Decision-making with 3-D Geological Models
2021
Florian Wellmann1, Miguel de la Varga2, Nilgün Güdük3, Jan von Harten1, Fabian Stamm2, Zhouji Liang1, s.Mohammad Moulaeifard1

Geological models, as 3-D representations of subsurface structures, can be combined with gravity inversions to obtain geometric representations of geological objects with similar porperty distributions. These models are built on…

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Problems with geothermal probes in evaporite deposits in Saxony-Anhalt
2023
Christoph Gauert1, Jörg Steinborn2

Near-surface geothermal energy as a key technology for the sustainable provision of heating and cooling is increasingly coming into focus as renewable energy and alternative to fossil fuels. In Saxony-Anhalt…

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Processes and “rates” of pedogenesis across a Late Quaternary chronosequence dated by in situ cosmogenic 10Be – a case study from the coastal Atacama Desert (N Chile)
2022
Janek Walk1, Christopher Tittmann1, Philipp Schulte1, Ramona Mörchen2, Xiaolei Sun3, Melanie Bartz4, Ariane Binnie5, Georg Stauch1, Roland Bol3, Helmut Brückner6, Frank Lehmkuhl1

Studies on soil formation under hyperaridity have so far focussed on the hyperarid core of the desert. Although the coastal sector of the Atacama Desert receives much larger amounts of…

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Production of an alite-rich material from reduced basic oxygen furnace slags
2023
Katharina Schraut1, Burkart Adamczyk1, Christian Adam1, Dietmar Stephan2, Sebastian Simon1, Julia von Werder1, Birgit Meng1

Basic oxygen furnace slag (BOFS) is a by-product of steelmaking of which about 10.4 Mt are produced annually in the EU. BOFS is mostly used in road construction, earthwork and…

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Project ConSent: Harmonisation of the Large-Scale Geological Map Series of Baden-Württemberg and Bavaria
2023
Matthias Franz1, Andreas-Alexander Maul2, Bernhard Wagner3

The increasing digital provision of geological maps leads to a growing need for data harmonisation in order to make the data usable across borders. An essential prerequisite for this is…

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Promoting FAIR and open data publication at the Department of Earth Sciences, Freie Universität Berlin
2023
Andreas Hübner1, Heinz-Alexander Fütterer1

The Department of Earth Sciences at Freie Universität Berlin has recently established a concept and workflow for the promotion of research data and its publishing. The project, funded with seed…

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Promoting Sustainability through Inclusive Resource Management: The Role of UNFC and Intergenerational Action
2023
Bianca Derya Neumann1, Ghadi Sabra1, Jodi-Ann Wang1, Yuhan Zheng1

The promotion of accessible knowledge and better understanding of raw materials extraction and management is a crucial step towards ensuring sustainable resource management across industries and nations. Intergenerational equity can…

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Prospectivity mapping of phosphor in Europe; a part of the GEOERA-FRAME project
2020
Martiya Sadeghi (1), Guillaume Bertrand (2), Sophie Decree (3), Daniel P. S. de Oliveira (4)

The prime aim of WP 3 in the FRAME project is to produce a map of Strategic and Critical Raw Materials (SCRM) for Europe. Another main objective is the predictive…

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Protection of a shallow karst aquifer in Zambia – Approach and challenges
2023
Svenja Henrike Rau1, Owen Micho1, Douglas Lubaba1, Pasca Mwila1

BGR and the Zambian government jointly develop and protect the groundwater resources in the country’s capital Lusaka. As one of the fastest growing cities in southern Africa, Lusaka has been…

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Provenance changes in NW Borneo and the development of the Miocene Baram Delta: implications from detrital zircon geochronology and heavy mineral analysis
2023
H. Tim Breitfeld1, Juliane Hennig-Breitfeld2, Thomson Galin3

The Cenozoic of Borneo consists of thick clastic sedimentary rocks that were deposited in various fluvial-lacustrine, shallow marine and deep-marine settings. From the Eocene onwards, the sedimentary successions play an…

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Provenance of Paleozoic diamictites in the southern Black Forest: petrography, geochemistry and detrital U-Pb-zircon chronology
2023
Calvin Diehl1, Johannes Lukas1, Henri Paul Meinaß1, Armin Zeh2, Matthias Hinderer1

In the Badenweiler-Lenzkirch Zone (BLZ) of the southern Black Forest, lower Paleozoic metasedimentary rocks of the Sengalenkopfschiefer Formation contain intercalations of diamictites which have been linked to the Hirnantian glaciation….

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Provenance of prehistoric lithic materials in the Arsanjan area (south central Iran); a geoarchaeological study
2022
Nima Nezafati1, Akira Tsuneki2, Fereidoun Biglari3

The Arsanjan area is located in the middle of the Zagros thrust zone, south central Iran, and consists of a series of ranges and plains. The study area is situated…

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Provenance shift at the northern margin of Gondwana during the Ordovician and Silurian recorded by detrital U-Pb zircon dating from the Eastern Alps
2021
Johannes Lukas1, Johanna Wolf1, Laura Stutenbecker1, Matthias Hinderer1, Hans Peter Schönlaub2, Jasper Berndt3

The paleogeographic position of the Alpine terrane with respect to (peri-) Gondwana during the Paleozoic is still a matter of debate. In this study we use a multi-proxy approach to…

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Proximal to distal grain-size distribution of basin-floor lobes: A study from the Battfjellet Formation, Central Tertiary Basin, Svalbard
2021
Yvonne T. Spychala1, Thymen A.B. Ramaaker2, Joris T. Eggenhuisen2, Sten-Andreas Grundvåg3, Florian Pohl4, Sara Wroblewska5

The grain-size distribution of sediment particles is an important aspect of the architecture of submarine fans and lobes. It governs depositional sand quality, and reflects distribution of particulate organic carbon…

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Pseudotachylites along the Pustertal-Gailtal-Line, eastern Periadriatic Fault system, Austria
2023
Muriel Odine Bülhoff1, Erick Prince1, Christoph Grützner1, Kamil Ustaszewski1

The Pustertal-Gailtal Line (PGL) belongs to the dextrally transpressive Periadriatic Fault system and forms the border between Southern and Eastern Alps. Although part of the ongoing convergence between Adria and…

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Puberty in a Mesozoic reptile
2023
Qiang Li1, Jun Liu1, Nicole Klein2, Yasuhisa Nakajima3, P. Martin Sander4

The histology of bone can be preserved virtually unaltered for hundreds of millions of years in fossils from all environments and all vertebrate taxa, giving rise to the flourishing field…

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Publication and Accessibility of Structural 3D Models of Saxony-Anhalt
2023
Tilman J. Jeske1, Melanie Siegburg1, Alexander Malz1, Manuela Zeug1, Christian Olaf Müller1, Jacob Wächter1, Lars Schimpf1, Ivo Rappsilber1

The publication and accessibility of geological data is one of the main tasks of geological surveys. Provided data helps to understand the local geology, facilitates exploration of natural resources and…

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Pure brick sand from Construction and Demolition Waste (CDW) through magnetic sorting
2023
Annett Lipowsky1, Jenny Götz1, Jan Rybizki1, Anette Müller1

In the processing of construction and demolition waste (CDW), the sorting of the delivered mixtures is one of the decisive process steps in order to produce pure recyclates, which can…

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Push pull tests for evaluating the sustainability of ATES systems: lessons learned from sensitivity acknowledging parameter optimization
2023
Elena Petrova1, Guido Blöcher1, Stefan Kranz1, Simona Regenspurg1, Ali Saadat1

A thorough characterization of aquifer parameters is crucial for long-term predictions of the ATES system’s functioning. Single well tests, also known as push-pull tests, have been widely used to identify…

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PySILLS, a newly developed Python-based open source tool for a modern data reduction of LA-ICP-MS experiments
2022
Maximilian Beeskow1, Thomas Wagner1, Fußwinkel Tobias1

Laser ablation – inductively coupled plasma – mass spectrometry (LA-ICP-MS) is a sensitive, efficient and cost-effective method for analyzing the major, minor and trace element compositions of minerals as well…

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Quantification of geogenic arsenic in clay-plug sediment of Holocene floodplains
2020
Santosh Kumar (1), Devanita Ghosh (2), Marinus Eric Donselaar (1,3), Floortje Burgers (1) & Ashok Kumar Ghosh (4)

Shallow aquifers in Holocene flood basins around the world are loci for the pollution of arsenic, which poses a severe health threat to millions of people. Groundwater is the prime…

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Quantification of greenhouse gas emissions from copper mining to refining
2023
Martin Erdmann1, Rüdiger Durchholz2, Gudrun Franken1

Material flow data are generally used to assess the environmental footprint of economic activities, e.g. through life cycle assessments (LCAs). This is particularly relevant for the resource-intensive sector of primary…

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Quantification of plutonium in environmental samples at the University of Cologne, Germany: progress update
2023
Joel Mohren1, Steven A. Binnie1, Erik Strub2, Stefan Heinze3, Tibor J. Dunai1

The measurement of 239,240Pu in environmental samples can play a key role in investigating Anthropocene Earth (sub-)surface processes. As a consequence of atmospheric nuclear weapon tests conducted in the 1950s…

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Quantification of radiation damage in zircon and other accessory minerals using rare-earth element µ-photoluminescence spectroscopy
2022
Christoph Lenz1, Elena Belousova2, Gregory R. Lumpkin3

Many accessory minerals, i.e., zircon, incorporate variable amounts of actinides, whose radioactive decay creates structural defects in their crystal structures. The increased susceptibility of radiation-damaged zircon to chemical alteration or…

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Quantification of uranium diffusion and sorption within a geochemical gradient in the Opalinus Clay on the host rock scale
2021
Theresa Hennig1,2, Michael Kühn1,2

In Claystones, the storage concept for spent nuclear fuel mainly consisting of uranium is based among others on the isolation of the radionuclides within the effective containment zone due to…

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Quantifying and optimising Enhanced Weathering as a CO2 removal tool
2023
Patrick Frings1

The application of finely ground silicate minerals to croplands and forests, with the aim of enhancing the rate of natural CO2 consuming weathering reactions, is receiving attention as a part…

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Quantifying and optimising Enhanced Weathering as a CO2 removal tool
2023
Patrick Frings1

The application of finely ground silicate minerals to croplands and forests, with the aim of enhancing the rate of natural CO2 consuming weathering reactions, is receiving attention as a part…

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Quantifying carbonate denudation from cosmogenic 36Cl and climatic and tectonic controls on carbonate landscape evolution
2021
Richard F Ott1,2, Sean F Gallen3, David Helman4,5

Quantifying carbonate denudation and the partitioning between chemical and mechanical surface lowering in karstic areas is challenging. Here we present a compilation of 36Cl denudation rates from alluvial samples in…

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Quantifying diffusion-driven metal stable isotope fractionation in olivine through powder source experiments
2022
Martin Oeser1, Ralf Dohmen2, Julius Eschenauer2, Stefan Weyer1

Chemical and isotopic zoning in olivine has frequently been used to determine timescales of magmatic processes by diffusion modeling. Furthermore, combining the information from chemical- and Fe-Mg- or Li isotopic…

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Quantifying grain-contact and grain-volume stress-strain fields in simulated sandstone: a high-resolution FEM approach
2020
Takahiro Shinohara, Cedric A.P. Thieulot and Suzanne J.T. Hangx

Fluid extraction from subsurface reservoir sandstones frequently results in surface subsidence and induced seismicity, such as observed in the Groningen Gas field (the Netherlands). The cause lies in reservoir compaction…

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Quantifying microstructures of Earth materials: Reconstructing higher-order correlation functions using deep generative adversarial networks
2022
Hamed Amiri1, Ivan Pires de Vasconcelos1, Yang Jiao2, Oliver Plümper1

Key to most subsurface processes is to determine how structural and topological features at small length scales, i.e., the microstructure, control the effective and macroscopic properties of earth materials. Recent…

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Quantitative analysis of normal fault network evolution
2023
Sascha Brune1, Thilo Wrona2, Pauline Gayrin1, Derek Neuharth3, Anne Glerum2, John Naliboff4, Esther Heckenbach1

Understanding how normal fault networks initiate and evolve is important for quantifying plate boundary deformation, assessing seismic hazard and finding natural resources. State-of-the-art numerical forward models treat faults as finite-width…

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Quantitative assessment of the terrain transformation in proglacial areas (the Djankuat River catchment case study, Caucuses)
2021
Andrei Kedich1,2

Proglacial areas are extremely unstable and characterized by highly intensive geomorphic processes. In this study, we consider a typical proglacial area on the Caucuses – Djankuat river catchment. This research…

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Quantitative mineralogical analysis for the development of new exploration vectors at the Spremberg-Graustein-Schleife Cu-Ag Kupferschiefer deposit, Lusatia, Germany
2023
Yonghwi Kim1, Max Frenzel1, Bradley Martin Guy1, Samuel Thomas Thiele1, Jens Gutzmer1

The Spremberg-Graustein-Schleife deposit is part of the Kupferschiefer district in the southern Permian Basin and comprises copper and silver mineralized rocks hosted by pre-Zechstein sandstones, Kupferschiefer, and Zechstein carbonates. As…

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Quartz ballen structures and related cristobalite in impact breccias from the Ries crater, Germany, formed from dehydration of impact-generated diaplectic silicaglass
2020
Fabian Dellefant (1), Claudia A. Trepmann (1), Melanie Kaliwoda (2), Kai-Uwe Hess (1), Wolfgang W. Schmahl (1,2) & Stefan Hölzl (3)

“Ballen structures” of quartz and cristobalite aggregates have been observed in impactites from a number of terrestrial impact structures, predominantly from impact melt rocks, suevites, and target rock clasts affected…

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QuARUm – Quality assessment of analytical data in the field of resource and environmental sciences
2023
Malte Mues1, David Ernst2, Falk Howar1, Michael Bau2

QuARUm is a BMBF- and EU-funded research project that aims to develop a prototype for a low-code environment enabling the researchers to construct pipelines that objectively and automatically assesses the…

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Quaternary fault reactivation in Antarctica associated with Glacial Isostatic Adjustment
2023
Ingra Malucelli Barbosa1, Holger Steffen2, Rebekka Steffen2, Elisabeth Seidel1, Karsten Gohl3, Christian Hübscher1

Available research on glacial isostatic adjustment (GIA) in Antarctica is sparse, and there are few records of how the stress field is affected by it compared to Arctic and northern…

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Radiocarbon depleted intermediate water masses during the LGM in the equatorial Indian Ocean
2022
Jacek Raddatz1, Elvira Beisel2, Martin Butzin3, Andrea Schröder-Ritzrau2, Christian Betzler4, Norbert Frank2

Ocean circulation and changes in ventilation represent one of the crucial regulation screws in the Earth´s climate system. For the Last Glacial Maximum (LGM, 21 kyr BP), characterized by a…

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Radon & Geology
2021
Lehné, Rouwen Johannes (1); Cinelli, Giorgia (2); Petermann, Eric (3)

With the 2013/59/EURATOM directive of the EU-Commission, the European member states were urged to update their radiation protection laws to account for the health risk of the exposure to elevated…

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Radon and tectonics in an urban area – case study Bad Nauheim (Hesse, Germany)
2021
Dilewski, Jan (1) , Lehné, Rouwen (2) , Sass, Ingo (1), Schäffer, Rafael (1)

Inspired by the new Radiation Protection Act (2013/59/EURATOM), which entered into force at the end of 2018, the city of Bad Nauheim in southern Hesse has been chosen for measurements…

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Radon Emanations from Soils: Case Study of Central Ukrainian Uranium Province
2021
Valentyn Verkhovtsev, Tamara Viktorivna Dudar, Yurii Tyshchenko, Volodymyr Pokalyuk

Ukraine is known as a uranium mining country located in the Central-Eastern Europe. The authors have been studying radioecological situation within the Central Ukrainian Uranium Province where the uranium deposits…

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Raman spectroscopy as a functional scientific examination method for minerals, rocks and meteorites in the modern Geosciences
2021
Melanie Kaliwoda1, Malte Junge1, Felix Hentschel1, Wolfgang W. Schmahl1, Fabian Dellefant2, Claudia Trepmann2

Raman spectroscopy is becoming an increasingly important investigative tool in modern geosciences. So it has been applied in the examination of a variety of materials, including meteoritic and igneous rocks,…

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Raman spectroscopy as a powerful tool for estimating the chromium to aluminum content in a range of different chromites
2022
Melanie Kaliwoda1, Miriam Elisabeth Krüger2, Hoffmann Viktor1, Junge Malte1, Brandmiller Fabian1, Hentschel Felix1, Schmahl Wolfgang1

Raman spectroscopy has been applied to study a range of chromites with variable chromium to aluminum to iron contents to determine conclusions about possible correlations between the chromium concentration and…

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Rapid downdip textural and compositional maturation of Moodies Group siliciclastics, Barberton Greenstone Belt, South Africa and Eswatini
2023
Deon Johannes Janse van Rensburg1, Sebastian Reimann1, Christoph Heubeck1

The Paleoarchean Moodies Group (ca. 3.22 Ga) of the Barberton Greenstone Belt (BGB) is the oldest known well-preserved, shallow-water siliciclastic sequence on Earth. Proximal-to-distal textural and petrographic examination of selected…

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Rapid microbial consumption of gaseous hydrogen injected into a shallow aquifer
2023
Nina-Sophie Keller1, Michaela Löffler2, Götz Hornbruch3, Klas Lüders3, Markus Ebert3, Susann Birnstengel1, Carsten Vogt1, Andreas Dahmke3, Hans-Hermann Richnow1

Hydrogen (H2) was injected into a shallow aquifer at the TestUM field site (close to Wittstock, Brandenburg, Germany) in order to simulate a H2 gas leakage scenario. The resulting biogeochemical…

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Rare Earth and Yttrium in tissues and shells of mussel from the Danube River and its tributaries
2022
Keran Zhang1, Anna-Lena Zocher1, Michael Bau1

Due to their numerous applications in various high-technology products, Rare Earths and Yttrium (REY) have become microcontaminants of freshwater systems. Nevertheless, their biogeochemical behaviour, especially their uptake by aquatic organisms…

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Rare earth element mobility in contrasting sediments
2023
Christoforos Zamparas1, Teba Gil-Díaz1, Elisabeth Eiche1

Contrasting sediments behave radically differently in aquatic systems, releasing elements of concern. Their behavior is a function of mineralogy, geochemical composition, and the conditions of the medium (e.g., ionic composition,…

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Rare earth elements and yttrium in naturally grown duckweeds: a pathway into the food web
2021
Anna-Lena Zocher, Franziska Klimpel, Dennis Kraemer, Michael Bau

Rare Earths and Yttrium (REY) have become pivotal constituents of many high-technology products and processes. Their widespread use has led to a growing release of (“anthropogenic”) REY into the environment…

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Rare Earth Elements and Yttrium in shells of invasive mussel species Corbicula fluminea and ambient waters from the Elbe and Weser rivers, Germany
2021
Keran Zhang, Anna-Lena Zocher, Chen Luo, Michael Bau

Rare Earths and Yttrium (REY) are widely used in many domains, resulting in anthropogenic input into the environment. However, still little is known about their uptake and bioavailability towards aquatic…

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Rare Earth Elements in Alkaline-Silicate Roof Zones: Late-Stage Magmato-Hydrothermal Processes in the Motzfeldt Igneous Centre, South Greenland
2023
Curtis James William Rooks1, Donald Angus Herd1, George Frangeskides2, Adrian Anthony Finch1

The Motzfeldt Centre forms part of the Igaliko Complex: one of the major complexes of the Mesoproterozoic Gardar Igneous Province of Southern Greenland. This syenite hosts a Ta-Nb-Rare Earth Element…

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Raw Material Potential from Historic Mine Sites
2020
Henrike Sievers (1), Petr Rambousek (2), Monica Serra (3), Antje Wittenberg (1) & Daniel Oliveira (4)

The raw materials required by the European industry, especially metallic raw materials, are largely imported into the EU. Thus, Europe’s economic and social wellbeing relies on supplies from international sources…

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Raw materials – you can’t do well without them
2020
Antje Wittenberg (1), Daniel P. S. de Oliveira (2), Lisbeth lindt Jorgensen (3), F. Javier Gonzalez (4), Henrike Sievers (1), Lídia Quental (2), Aurete Pereira (2), Tom Heldal (5) & David Whitehead (3)

“Raw materials, you can’t do well without them”. This statement echoes the needs for a reliable raw materials supply chain. Awareness of raw materials is an essential element for the…

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Raw materials for our everyday life in the context of museum education
2021
Malte Junge, Melanie Kaliwoda, Wolfgang W. Schmahl

The need of raw materials for our society and our everyday life steadily increased during the last decades. In particular, the technological development demands for a secure supply as well…

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Raw materials need and supply presented in exhibitions and workshops of the Museum Mineralogia Munich
2022
Malte Junge1, Melanie Kaliwoda1, Omar Gianola2, Holzmueller Julia2, Hentschel Felix2, Schmahl Wolfgang W.1

The need of raw materials for our society and our everyday life steadily increased during the last decades. In particular, the technological development demands for a secure supply as well…

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Re-distribution of platinum-group elements in supergene ores of the Merensky Reef, Eastern Bushveld Complex, South Africa
2022
Maximilian Korges1, Malte Junge2, Gregor Borg3, Thomas Oberthür4

The Merensky Reef of the Bushveld Complex, South Africa, is one of the largest resources of platinum-group elements (PGE) worldwide. Near-surface supergene ores of the Merensky Reef contain high grades…

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Re-mining as remediation method for critical metals (Be and W) in historical skarn tailings
2021
Lina Hällström

Critical metals (CM) are important to develop a sustainable society in the EU. Today, more than 80% of most CM are imported and EU is striving for a higher internal…

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Reaction mechanisms and process monitoring at mineral-fluid interfaces in anthropogenic settings
2021
Dietzel, Martin (1); Kluge, Tobias (2); Boch, Ronny (3,1); Mittermayr, Florian (4)

The interdisciplinary approach of combining expertise in environmental, geochemical, civil engineering and material sciences realizes a new level of in-depth process understanding of the prevailing biophysicochemical reaction mechanisms occurring at…

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Reading the climate signals hidden in lateritic iron duricrusts
2022
Beatrix Heller1, Cécile Gautheron2, Guillaume Morin3, Jean-Yves Roig4, Rosella Pinna-Jamme2, Thierry Allard3

Laterites are deep weathering profiles which develop under tropical and subtropical climatic conditions. Their geochemical and mineralogical composition is strongly influenced by the climatic condition under which they form, whereas…

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Reappraisal of the environmental setting and taphonomy of the Trossingen Plateosaurus bonebeds
2023
Joep Schaeffer1, Eudald Mujal2, Rainer R. Schoch3

The Norian Trossingen Plateosaurus bonebeds have piqued the interest of many researchers over the past 100 years. Several investigations took place in the 1910’s to 1930’s excavating over 80 skeletons,…

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Reasons and implications of fossil hydraulic gradients in large-scale aquifer systems
2021
Stephan Schulz1, Hyekyeng Jung1, Marc Walther2, Nils Michelsen1, Randolf Rausch1, Christoph Schüth1

Due to limited availability of surface water, many arid and semi-arid countries have to rely on their groundwater resources. Despite the quasi-absence of present-day replenishment, some of these aquifers contain…

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Reasons for extreme Th/U zoning of zircon in magmatic rocks: examples from the Bushveld Complex Armin Zeh1, Dominik Gudelius2, Allan H Wilson3
2021
Armin Zeh1, Dominik Gudelius2, Allan H Wilson3

Zircons of magmatic rocks can show enormous variations in Th/U ratios (0.2 to 100) and extreme Th/U zoning. We present data from felsic and mafic rocks of the Bushveld Complex…

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Reassessing evidence of Moon-Earth dynamics: No evidence of shorter lunar months from tidal bundles at 3.2 Ga (Moodies Group, Barberton Greenstone Belt)
2021
Christoph E. Heubeck, Tom Eulenfeld

The sole Archean data point to reconstruct past orbital parameters of the Earth’s moon is from the Moodies Group (ca. 3.22 Ga) of the Barberton Greenstone Belt. From time-series analysis…

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Recent advances in geoscientific investigations of the ocean floor
2021
Bohrmann, Gerhard; Stein, Rüdiger; Bach, Wolfgang

The ocean covers 71% of our earth’s surface and is much more difficult to access for geoscientific investigations than the land surface. Although scientists have been studying the ocean from…

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Recent case studies and advances of the magnetotelluric method in geothermal exploration
2021
Friedemann Samrock

The magnetotelluric (MT) method is a well-established tool in geothermal exploration. Case studies from all over the world and from different geothermal settings have proven its effectiveness, when it comes…

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Recent headwall deglaciation and retreat from cosmogenic 10Be in medial moraine debris of a Swiss valley glacier
2021
Katharina Wetterauer1, Dirk Scherler1,2, Leif S. Anderson1,3, Hella Wittmann1

Debris-covered glaciers are fed from steep bedrock hillslopes that tower above the ice, so-called headwalls. Recent observations in high-alpine glacial environments suggest that rock walls are increasingly destabilized due to…

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Reconstruct sedimentation rate and time from downhole logging data at Lake Chalco, Central México
2021
Mehrdad Sardar Abadi, Christian Zeeden, Thomas Wonik

Understanding the evolution of lower latitude climate from the most recent glacial periods to post-glacial warmth in the continental tropical regions has been obstructed by a lack of continuous geological…

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Reconstruct the evolution of Milankovtich cycle in Paleozoic and Proterozoic and Earth-Moon separation history
2021
Maoyang Zhou, Huaichun Wu, Qiang Fang

At present, it is difficult to obtain numerical astronomy solutions prior to 50 Ma , which should be two reasons for this. First, the solar system’s chaotic behavior, namely, small…

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Reconstructing past ice sheets and paleotopography using observations of past sea level and glacial geology
2021
Evan James Gowan1,2,3

During the Quaternary, large ice sheets repeatedly formed and retreated over continental North America and northern Europe, which in turn caused fluctuations in global sea level by up to 120…

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Reconstructing past ice sheets and paleotopography using observations of past sea level and glacial geology
2021
Evan James Gowan1,2,3

During the Quaternary, large ice sheets repeatedly formed and retreated over continental North America and northern Europe, which in turn caused fluctuations in global sea level by up to 120…

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Reconstructing seasonal growth rate changes in fossil giant clams using sub-daily resolved LA-ICPMS
2022
Iris Arndt1, Douglas Coenen1, Jonathan Cyriax Brast2, Maximilian Fursman1, David Evans1, Willem Renema3, Wolfgang Müller1

Bivalves are important environmental archives that can provide past „climate snapshots“ at high temporal resolution. The long-lived giant clam Tridacna builds large (< 1 m), dense aragonite shells in which...

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Reconstruction of high-resolution lake level and its astronomical forcing during the Paleogene
2020
Meng Wang (1) & Mingsong Li (2)

Challenges in continental sequence stratigraphy and typically limited resolution in geochronology hinder the understanding of paleolake evolution and hydrocarbon exploration in terrestrial basins. The Dongpu Depression in North China is…

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Reconstruction of microbial habitats through deep time: an isotope geochemical perspective on stromatolites
2021
Sebastian Viehmann

Stromatolites are laminated, presumably microbial, structures, consisting largely of an authigenic precipitate, and manifest the appearance of microbial life in the geological rock record at least 3.4 Ga ago. Thus,…

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Reconstruction of Miocene geodynamics in the Central Alps using detrital garnet geochemistry in sandstones of the Swiss foreland basin
2021
Daniela Krieg, Laura Stutenbecker

The geodynamics in the Central Alps during the Miocene were majorly characterized by the exhumation of crystalline basement, the so-called external crystalline massifs. Their exhumation had a major impact on…

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Reconstruction of paleoredox conditions in the Upper Jurassic – Lower Cretaceous Bazhenov Sea (West Siberian Basin, Russia)
2022
Linda Burnaz1, Sebastian Grohmann1, Ralf Littke1

The Bazhenov Sea covered around 2 million km2 of the Mesozoic West Siberian Basin (WSB) during Volgian to Early Berrasian times, resulting in the deposition of highly organic-rich black shales…

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Recovery of lithium by ion-exchange in zeolitic materials
2021
Rosa Micaela Danisi, Frank Schilling

More than 70% of the global lithium resources are not solid minerals but dissolved salts within continental brines or geothermal waters. Critical issues in the exploitation of such deposit include…

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Recrystallization and deformation mechanisms in the NEEM deep ice core, Greenland
2020
Ernst-Jan Kuiper (1), Martyn Drury (1), Gill Pennock (1), Hans de Bresser (1) & Ilka Weikusat (2)

Understanding the evolution of lower latitude climate from the most recent glacial period of the latest Pleistocene to post glacial warmth in the continental tropical regions has been obstructed by…

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Recurrent continent-scale hiatus surfaces in Europe and links to upper mantle flow
2021
Berta Vilacís, Jorge N. Hayek, Hans-Peter Bunge, Anke M. Friedrich, Sara Carena

Mantle convection is a fundamental driving force for the tectonic activity of our planet. It is commonly perceived that mantle convection is difficult to constrain directly. Its processes, however, affect…

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Redistribution of trace elements from mantle to crust is controlled by planet size
2023
Julia Marleen Schmidt1, Lena Noack1

Inside the upper mantle, incompatible trace elements are redistributed from solid mantle rocks into partial melt. The melt that accumulated the trace elements and that is less dense than the…

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Redox conditions during deserpentinization in western Elba Island, Italy
2021
Malte Kalter1, Wolfgang Bach2

The observation of oxidized arc melts has led to a discussion about the redox conditions during the dehydration reactions of serpentinites in subduction zones. The discussed range of oxygen fugacities…

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Redox state and interior structure control on the long-term habitability of stagnant-lid planets
2023
Philipp Baumeister1, Nicola Tosi2, Caroline Brachmann2, John Lee Grenfell3, Lena Noack4

A major goal in exoplanet science is the search for planets with the right conditions to support liquid water. The habitability of a planet depends strongly on the composition of…

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Reducing exhumation uncertainties in basin modelling: Source rock maturation history of the Southern Chotts Basin, Central Tunisia
2020
Jos Kwakman, Pierre-Olivier Bruna & Giovanni Bertotti

The primary reservoirs present in the Southern Chotts Basin, Central Tunisia, are located within Triassic-, Permian- and Ordovician units. They are mainly sourced by the Silurian – Lower Devonian Fegaguira…

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Refining workflow for obtaining subseismic-scale fracture density along scan lines (P10) in reservoir analogs
2021
Amol Dayanand Sawant, Felix Allgaier, Benjamin Busch, Christoph Hilgers

Subseismic-scale geological information from reservoir analogs, when integrated with reservoir seismic data, substantially improves reservoir modelling. Wüstefeld et al (2018) developed a new workflow for 1) automated detection of subseismic-scale…

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Regional deformation imprints from anisotropy of magnetic susceptibility data – an example from the Raichur Schist Belt (Dharwar Craton, India)
2021
Santu Biswas1, Manish A Mamtani1, Agnes Kontny2, Christoph Hilgers2

The Raichur Schist Belt (RSB) is a NW-SE trending late-Archaean greenstone belt that forms part of the supracrustal units lying over an older gneissic basement. Granites (ca 2.5 Ga) occur…

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Regional geology and structural control of copper-bearing vein formation in the Western Anti-Atlas of Morocco
2023
Jasemin Ayse Ölmez1, Ida Maria Möckel1, Fatiha Askkour2, Moha Ikenne2, Atman Madi3, Christoph Hilgers1

The Ouansimi copper mine is located south of the Kerdous inlier in the Western Anti-Atlas in Morocco. Neoproterozoic and Lower Cambrian sedimentary rocks record recurring transgressive and regression cycles by…

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Regional geology: a key for answering questions in geoscience
2021
Meinhold, Guido (1,3); Golonka, Jan (2); Kley, Jonas (3); Röhling, Heinz-Gerd (4)

Regional geology is an essential cornerstone of geoscience, encompassing multiple geological disciplines to study important geological features of a region. The size and the borders of each region are usually…

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Relative Importance of Climate and Humans on Water Storage Changes using GRACE Satellite Data
2021
Bridget R. Scanlon

Understanding climate and human impacts on water storage is critical for sustainable water-resources management. Here we assessed causes of total water storage (TWS) variability from GRACE satellites by comparison with…

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Relative importance of poroelastic effects and viscoelastic relaxation for postseismic velocity fields after normal and thrust earthquakes: insights from 2D finite-element modelling
2022
Jill Peikert1, Andrea Hampel1, Meike Bagge2

Earthquakes on faults in the brittle upper crust cause sudden changes in pore fluid pressure as well as viscoelastic flow in the lower crust and lithospheric mantle, which affect the…

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Release of beryllium (Be) and tungsten (W) from historical mine tailings and the environmental impact on epilithic water diatoms in downstream surface water
2021
Lina Hällström

There is a potential risk that geochemical cycles of critical metals (e.g Be and W) will be affected in the pristine environment, when mining of these metals increases to meet…

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Relict permafrost features identification in landscape and deposits of Borisoglebsk Upland, Central European Russia
2021
Ekaterina V. Garankina1,2, Vasily A. Lobkov1, Ilya G. Shorkunov2, Vladimir R. Belyaev1,2

Relict permafrost features (RPF) indicated by specific patterns of soil, sedimentary and landform structure are characteristic of Central Russian Plain watersheds. Paleocryogenic polygonal networks appear in a pattern of semi-regular…

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Remaining opportunities in medium-deep reservoirs of the North German Basin – lessons learned from the new development in Schwerin
2023
Matthias Franz1, Markus Wolfgramm2

The North German Basin yields enormous resources of heat in place bound to the Palaeozoic–Mesozoic succession and to fault systems. Early exploration campaigns have identified highly permeable Mesozoic sandstones at…

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Renaissance of a ground foundation absorber: Efficient building climate control using model-based operational optimization
2023
Felix Schumann1, Maximilian Friebe2

The energy concept for the VW library in Berlin, which was built in 2004, centers on a ground foundation absorber (GFA) that uses concrete core temperature control to freely cool…

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Reservoir characterization of the coal-bearing Upper Carboniferous clastic succession, Ruhr area, Germany
2021
Jonas Greve1,2, Benjamin Busch2, Dennis Quandt2, Christoph Hilgers2

Due to the closure of coal mining in the northwestern German coalfields, active mine water drainage becomes technically redundant. As a result, the rising mine water table affects the subsurface…

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Reservoir quality and diagenesis of limestones from the Upper Cretaceous (Beckum-Fm.) of the Münsterland Cretaceous Basin
2023
Jasemin Ayse Ölmez1, Benjamin Busch1, Christoph Hilgers1

The Upper Cretaceous Campanian limestones from the Ahlen-Fm. (Beckum-Fm. Submember) of the Münsterland Cretaceous Basin in NW Germany are former high porosity limestones, which consist mostly of detrital components. This…

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Residual gravity anomalies in the Western Mediterranean shed light on complex crust
2021
Hans-Jürgen Götze, Philipp Tabelow

The data sets presented here are used for the preparations of a 3-dimensional modelling of the gravity field in the Western Mediterranean/Ligurian Sea. As part of the AlpArray initiative and…

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Resolving Meter-Scale Interwell Depositional Heterogeneities for Improved 3D Reservoir Modelling – High Resolution 3D Photogrammetry and Geophysical Outcrop Surveys of Late-Jurassic Reservoir Rocks, Saudi Arabia
2020
Ahmad Ihsan Ramdani (1), Pankaj Khanna (1), Gaurav Gariola (1), Sherif Hanafy (2) & Volker Vahrenkamp (1)

Interwell meter-scale depositional heterogeneity is a key geologic factor behind un-even fluid advance in carbonate reservoirs undergoing waterflooding and enhanced oil recovery developments. Subsurface data (seismic and well data) are…

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Resolving microbial carbonate mineralization in extreme environments: from diagenetic noise to environmental signal
2022
Anneleen Foubert1, D. Jaramillo-Vogel1, E. De Boever1, H. Negga1, J.C. Schaegis1, V. Rime1, A. Endeshaw1, J.C. Braga2, T. Vennemann3, B. Atnafu4, T. Kidane5

Microbial carbonates are unique deposits formed by the direct or indirect action of benthic microbial communities. They witness early life since Precambrian times, and occur in a wide variety of…

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Response of salt structures to loading and unloading by ice-sheets – insights from numerical modelling
2023
Jörg Lang1, Andrea Hampel2

Salt rocks are mechanically weak and behave like viscous fluids when deforming at geological time scales and strain rates. The weight of an ice sheet advancing into a salt-bearing basin…

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Responses of alluvial river networks to environmental change: Integrating geomorphic and stratigraphic archives
2023
Fergus McNab1, Taylor F. Schildgen2, Jens M. Turowski1, Andrew D. Wickert3

Alluvial river networks are key components of sedimentary systems. They transport sediment, supplied from eroding source regions, to downstream depositional sinks. Their slopes and the rates at which they transport…

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Responsible Geosciences, or Geoscience Literacy for Urbanites
2023
Martin Bohle1

Urbanites, i.e., people living in urban environments, should be geoscience-literate. Them living under a ‘veil of geo-ignorance’ is not a valid option for responsible geosciences. The urban realm is a…

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Review of the European Lithium resources
2021
Blandine Gourcerol, Eric Gloaguen, Romain Millot, Jérémie Melleton, Bernard Sanjuan

In the last decade, lithium has become a European strategic metal due to its extensive consumption in electromobility and green technologies. Consequently, global demand has increased substantially encouraging European interest…

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Revised and improved geological model of the Waiwera geothermal reservoir, New Zealand
2021
Andreas Grafe1,2, Thomas Kempka2,3, Michael Schneider1, Michael Kühn2,3

Following a thermal and photogrammetric outcrop mapping campaign undertaken at the Waiwera geothermal reservoir in 2019, a pre-existing 3D hydrogeological model was revised in the present study to assess the…

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Revised lithostratigraphy of the Paleoproterozoic Porkonen banded iron formation and associated sulphidic shales, Northern Finland
2022
Grigorios Aarne Sakellaris1

The Palaeoproterozoic (~2.0 Ga) Porkonen Formation in the Kittilä greenstone belt (or terrane) in northern Finland is an exceptionally well-preserved succession of banded iron formation, shale-dominated units and submarine lava….

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Revisiting GNSS vertical velocity in the Eifel volcanic field
2021
Makan Karegar, Jürgen Kusche

Recent evidence suggests that the Eifel Volcanic Fields (EVF) make measurable contributions to the surface deformation in GPS networks, but quantitative assessments of displacement time series and their impacts on…

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Revisiting the B isotope fractionation and partitioning systematics in synthetic MORB
2022
Sebastian Kommescher1, Felix Marxer2, Florian Pohl2, Francois Holtz2, Renat Almeev2, Ingo Horn2, Raúl O. C. Fonseca1

Boron isotope systematics allow tracing of e.g. fluid-mediated mobilisation of subducted material in subduction zones. The associated B isotope fractionation factors are constrained by e.g. analysis of synthetic samples. Here…

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Rheological inversion and mullion formation of a composite sill under bulk constriction (Odenwald, Germany).
2022
Janet Zulauf1, Jolien Linckens2, Axel Gerdes1, Horst Marschall1, Filip Loeckle3, Harro Schmeling1, Gernold Zulauf1

We present new data from a composite sill, which intruded at deep structural levels (ca. 18 km depth) into quartzmonzodiorite of the southern Odenwald. Zircons and titanites of the quartzmonzodiorite…

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Richardsite – a member of the stannite group?
2022
Yvonne Tomm1, Nikita Siminel2, Galina Gurieva1, Gerald Wagner3, Susan Schorr4

A new chalcogenide mineral, Richardsite, was proposed in literature with a composition Zn2CuGaS4 and crystallizing in the tetragonal stannite-type structure [1]. This compound can be viewed as a mixed crystal…

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Risk assessment of radioactivity in water intended for human consumption in mainland Portugal
2021
Filipa P. Domingos1,2, Alcides J. S. C. Pereira1,3

The requirements for radiological protection regarding radioactive substances in water intended for human consumption are established in the Council Directive 2013/51/EURATOM of 22 October 2013. In Portugal, the Directive was…

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River evolution in the Atacama Desert: comparisons of cosmogenic nuclide and molecular clock dating approaches
2022
Ariane Binnie1, Ambrosio Vega Ruiz2, Pia Victor2, Katrin P. Lampert3, Klaus R. Reicherter4, Gabriel Gonzalez5, Laura Evenstar6, Steven A. Binnie7

The Atacama Desert in northern Chile is considered to be the driest, oldest desert on Earth. None-the-less, even the hyperarid core of this desert is host to several deeply incised,…

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RNA trapping in 3D Hadean hydrothermal submarine vent models
2022
Vanessa Helmbrecht1, William Orsi1

The question on how life emerged on Earth remains one of the biggest mysteries of mankind. Alkaline hydrothermal vents (AHVs) might have played a key role during the transition from…

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Rock alteration at the post-Variscan nonconformity: implications for Permo-Carboniferous surface weathering versus burial diagenesis
2021
Fei Liang1, Adrian Linsel1, Matthias Hinderer1, Jens Hornung1, Dirk Scheuvens1, Rainer Petschick2

Nonconformity surfaces are key features to understand the relations among climate, lithosphere and tectonic movements in Earth history. One of the most prominent stratigraphic surfaces in Central European is the…

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Rock slope failures along the Forkastningsfjellet coastline, Svalbard: characteristics and implications for controlling and triggering factors
2021
Dirk Kuhn1, Jewgenij Torizin1, Michael Fuchs1, Reginald Hermanns2, Tim Redfield2, Dirk Balzer1

Climate warming and the related permafrost degradation are thought to influence slope stability, landscape evolution, and the natural hazard potential in polar- and high mountain regions. In this context, we…

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Rock-hosted life through time – Integrating biosignatures of ancient and modern hydrothermal systems
2021
Florence Schubotz

Recent advances in analytical tools including more sensitive detection techniques have led to the discovery of microbial biosignatures in ultra-low biomass samples such as the oceanic lithosphere. Here, energy fluxes…

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Rock-uplift history of the Central Pontides from river-profile inversions and implications for the evolution of the North Anatolian Fault
2023
Simone Racano1, Taylor Schildgen2, Paolo Ballato3, Cengiz Yıldırım4, Hella Wittmann3

Major strike-slip fault systems on Earth, like the North Anatolian Fault (NAF), play an important role in accommodating plate motion, but little is known about their spatiotemporal evolution. In the…

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Rocks under stress: How dramatic the effect of stress on metamorphic reactions really is?
2023
Lucie Tajcmanova1

Recent decades have been connected with an impressively accelerating pace in the development and availability of new analytical techniques to earth scientists. Interestingly, the smaller the scale considered, the more…

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Role of asperities on the transition from seismic to aseismic slip using an experimental fault slip system
2021
Weiwei Shu, Olivier Lengliné, Jean Schmittbuhl

Faults are common geological structures distributed at various depths within the Earth with different behaviors: from seismic to aseismic. The frictional stability of faults is linked to the properties of…

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Role of lithospheric-scale geological inheritance in the continental lithosphere dynamics
2023
Ajay Kumar1, Mauro Cacace1, Magdalena Scheck-Wenderoth2

Orogens in the Alpine-Himalayan collision zone (AHCZ) exhibit characteristic diffused seismicity compared to the stable continental interiors. Interestingly, they also have a thicker-than-average silica-rich upper crust and total crustal thickness,…

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Roll-out of Deep Geothermal Energy in North-West Europe (DGE-ROLLOUT): Geothermal Energy Potential of Lower Carboniferous Carbonate Rocks
2023
Tobias Fritschle1, Martin Arndt1, Kim Nokar1, Estelle Petitclerc2, Timme van Melle3, Matsen Broothaers4, Arianna Passamonti5, Martin Salamon1

Deep geothermal energy (DGE) may play a crucial role in the future energy production considering its base load capacity and ubiquitous availability. The EU Interreg North-West Europe (NWE) funded project…

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Roots of the post-collisional Eocene magmatism in NE Turkey: Insights from ultramafic-mafic Yıldızdağ Gabbroic Intrusion
2020
Gönenç Göçmengil (1), Zekiye Karacık (2) & Namık Aysal (3)

Ultramafic-mafic cumulate rocks often situated at deep root zones of the magmatic systems when they intruded into continental crustal areas. In rare occurrences, they can also intrude at the middle…

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Sahara Dust Event in Central Europe in March 2022: over 100 micron sized particles!
2022
Melanie Kaliwoda1, Viktor Hoffmann1, Yen-Chun Chiang1, Malte Junge1, Felix Hentschel1, Wolfgang Schmahl1

In late winter 2022 massive Saharan dust clouds have moved from S Algeria / Morocco over Spain and France to Central Europe and one of these reached S Germany at…

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Salts as proxies for water-soil interaction in the hyperarid Atacama Desert
2023
Felix Leo Arens1, Alessandro Airo2, Jenny Feige2, Christof Sager2, Uwe Wiechert3, Dirk Schulze-Makuch4

The Atacama Desert is the oldest and driest non-polar desert on Earth, where salts have accumulated through atmospheric deposition over millions of years of hyperaridity. These salts can serve as…

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Sandbox – Creating and Analysing Synthetic Sediment Sections with R
2021
Michael Dietze1, Sebastian Kreutzer2,3, Margret C. Fuchs4

Geoscientific concepts and hypotheses are usually formulated based on empirical data from the field or the laboratory (induction). After translation into models they can be applied to case study scenarios…

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Scandium and Rare Earths in Major Rivers in Sweden
2021
Franziska Klimpel, Michael Bau

Scandium (Sc) is often included in the group of rare earths and yttrium (REY), but in contrast to the REY, knowledge on its behaviour in the hydrosphere is rather limited….

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Sclerochronology: Reconstructing short-term climate variability from mollusk shells
2023
N.J. Winter1, B. Goudsmit-Harzevoort2, N. Wichern3, A. Johnson4, S. Goolaerts5, F. Wesselingh6, G.J. Reichart7, L. de Nooijer7, W. Boer7, J. Vellekoop8, N. van Horebeek9, P. Claeys10, R. Witbaard11, M. Ziegler12

In the ongoing anthropogenic climate crisis, successful adaptation to future climate requires a detailed understanding of the response of Earth’s climate system to warming. Past warm climates constitute a valuable…

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Screening of environmental risks in metals supply chains, using the example of battery metals
2021
Klaus Steinmueller

As a leading industrial country, Germany has a great need for metallic raw materials, which will even increase over the next years with the intended energy and mobility transition. To…

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Seafloor geology and the European EMODnet data infrastructure: The challenge of integrating off-shore data across EEZ boundaries
2023
Kristine Eva Charlotte Asch1

Within the EMODnet Geology project BGR is leading the Workpackage Seafloor geology with the aim to compile and harmonise data of the pre-Quaternary and Quaternary off-shore geology and geomorphology of…

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Seasonal changes of ambient environment reflected in Glycymeris shells from the Iberian Shelf
2023
Alexandra Németh1, Zoltán Kern1

The aim of our study was to investigate the driving factors for shell growth in G. glycymeris bivalves by analysing the growth patterns and stable oxygen and carbon isotope compositions…

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Seasonal geochemical and growth rate variabilities in a Miocene giant clam
2023
Iris Arndt1, Douglas Coenen1, Maximilian Fursman1, David Evans2, Willem Renema3, Wolfgang Müller1

Tridacna are important archives for (sub)tropical marine palaeoenvironmental conditions. Their longevity (up to 100 years), large aragonitic shells (up to 1m) and rapid shell accretion (mm-cm/year) make them ideal to…

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Seasonal variances in the palaeolake of Tayma (Saudi Arabia) seen in microfossils during the Early Holocene Humid Period
2023
Anna Pint1, Ella Quante2, Peter Frenzel1, Eilyn Becher1, Max Engel3

During the Early Holocene Humid Period (EHHP), a perennial lake was located in the endorheic depression north of the modern settlement of Tayma in Saudi Arabia. While the climate in…

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Sediment flux quantification across the Permian – Triassic boundary of the SE Germanic Basin: implications for climate recovery and sediment routing system analysis
2021
Domenico C. G. Ravidà1, Luca Caracciolo1, William A. Heins2, Harald Stollhofen1

of ancient sediment routing systems (SRS) and quantifying the role of external forcing controls. However, it is a particularly challenging task often hampered by the lack of solid paleo-climatic, paleo-tectonic…

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Sediment production in the Coastal Cordillera of Chile from detrital apatite geochemistry and thermochronology
2021
Andrea Madella, Christoph Glotzbach, Todd A. Ehlers

We study spatial patterns of sediment production in two catchments of the Coastal Cordillera (Chile) situated in semi-arid and mediterranean bioclimates. To do so, we measure bedrock and detrital apatite…

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Sediment production under semi-arid climatic conditions using heavy mineral and petrographical data – a case study from the recent Kunene river system, northern Namibia.
2021
Jonas Kraus, Ali Abbas Wajid, Laura Stutenbecker, Matthias Hinderer

Provenance techniques are widely applied in resolving the origin of ancient sediment successions. Petrographic signatures, however, are controlled by a complex interplay of rock type, weathering mode as well as…

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Sediment routing systems and provenance analysis
2021
Stutenbecker, Laura (1); von Eynatten, Hilmar (2); Caracciolo, Luca (3); Guido Meinhold (2, 4)

The composition of clastic sediments or sedimentary rocks is a result of source area properties, sediment generation and transport processes as well as post-depositional changes. Deciphering the provenance of clastic…

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Sediment transfer and recycling in segmented sedimentary systems: An example from the Aare river (Switzerland)
2023
Laura Stutenbecker1, Matthias Hinderer2, Daniela Krieg2, Fritz Schlunegger3, Michael Schwenk4

Environmental signals produced by changes in climate or tectonic regime are transferred and modified through sedimentary systems from source to sink. Sediment (and therefore signal) transfer in segmented systems is…

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Sedimentary basins: Fingerprinting the lithospheric-scale processes
2023
Nevena Andrić-Tomašević1

This talk focuses on disentangling the signatures of the lithospheric scale processes such as slab break-off and/or tearing within the sedimentary basin architecture. Sedimentary basins are sensitive recorders of the…

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Sedimentological record of a river mouth in Northern Lebanon during the Holocene
2023
Martin Trappe1, Sender Christian1, Rom Jakob1, Kopetzky Karin2, Genz Hermann3

Within the framework of a geoarchaeological project to reconstruct the environmental conditions in the hinterland of an archaeological excavation in Northern Lebanon a drilling core near to the Nahr-El-Jaouz river…

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Sedimentology and sequence stratigraphy of the Aalenian from southern Germany
2022
Thomas Mann1, André Bornemann1, Jochen Erbacher2

Aalenian sedimentary deposits in southern Germany have accumulated in a shallow-marine shelf environment and are typically dominated by thick claystones and argillaceous siltstones, with increasing percentages of sand towards the…

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Sedimentology and sequence stratigraphy of the lower Aalenian Opalinuston Formation from southern Germany
2023
Thomas Mann1, André Bornemann1, Jochen Erbacher2

Aalenian sedimentary deposits in southern Germany have accumulated in a shallow-marine, epicontinental shelf environment. These accumulations are dominated by thick claystones and argillaceous siltstones, with increasing percentages of sandstones towards…

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Sedimentology of the Bromacker (Thuringian Forest Basin, Germany; early Permian): Classification of sedimentary structures
2021
Frank Scholze

The Thuringian Forest Basin (southern Thuringia, central Germany) is composed of volcanic and sedimentary rocks belonging to the Gehren Subgroup and the Rotliegend Group of late Carboniferous–early Permian age. The…

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Seepage of natural hydrogen: geochemical uncertainties and the need of a holistic approach
2023
Giuseppe Etiope1

Natural hydrogen (H2) exploration is particularly focused on surface emissions (seeps) and soil-gas prospections, similar to early petroleum reservoir explorations. However, defining the amount of H2 at the surface that…

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Seismic Interpretation of a deltaic-fluviatil system within the Bückeberg-Formation (Berriasian, Lower Cretaceous, Lower Saxony Basin)
2021
Matthias Warnecke, Gesa Kuhlmann

As part of the geothermal project GeneSys, the Federal Institute for Geosciences and Natural Resources, drilled the Groß Buchholz Gt1 geothermal well. At a depth of approx. 1,100 – 1,330m…

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Seismic Monitoring of DeepStor: Using low-cost sensors for ambient noise correlation methods and Citizen Science
2021
Johannes Käufl, Eva Schill, Thomas Kohl

DeepStor is an experimental facility with the goal to investigate High Temperature Aquifer Thermal Energy Storage (HT-ATES) systems at KIT Campus North. The operational seismic monitoring of DeepStor includes a…

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Selective lithium extraction from geothermal brines by sorption
2021
Rebekka Sophie Reich, Klemens Slunitschek, Elisabeth Eiche, Jochen Kolb, Rosa Micaela Danisi

Lithium is an important compound in several industrial applications and is mostly found in lithium ion batteries (LIBs), ceramics and glass. Lithium deposits are hosted in pegmatites, sedimentary rocks and…

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Self-potential and electromagnetic radiation monitoring of hydraulic fracturing experiments at the Äspö hard rock laboratory (Sweden)
2021
Nadine Haaf, Eva Schill

At the Äspö hard rock underground laboratory in Sweden, six in situ hydraulic fracturing experiments took place at 410 m depth. A multistage hydraulic fracturing approach is tested with a…

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Sending scientists into classrooms: The online platform “Forschungsbörse” linking schools with active research scientists
2020
Jörg Geldmacher (1), Sylke Hlawatsch (2) & Franziska Neumann (3)

The online platform www.forschungsboerse.de was launched in 2010 by the German Federal Ministry of Education and Research as part of the “Science Year” as an instrument for science communication and…

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Sensor fusion – An new approach towards a digital twin in geoscience and post-mining
2021
Marcin Pawlik1, Maik Gellendin2, Tobias Rudolph1

Geomonitoring of mining processes is a very current topic. Geomonitoring uses modern surface and subsurface methods observing the Earth’s surface. “Digital Twin” is a research project whose main goal is…

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Sequence stratigraphy of the Moodies Group (3.2 Ga), Barberton Greenstone Belt, South Africa
2021
Deon J. Janse van Rensburg, Christoph Heubeck, Sebastian Reimann

The Moodies Group (~3.2 Ga) of the Barberton Greenstone Belt is one of the oldest and best-preserved shallow-water siliciclastic sequences. It also harbors one of the largest occurrences of Paleoarchean…

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Serravallian-Tortonian hydrological isolation of the Eastern Paratethys from the perspective of the Caspian Basin: Sarmatian s.l. integrated stratigraphy and biotic record of Karagiye, Kazakhstan.
2023
Sergei Lazarev1, Oleg Mandic2, Marius Stoica3, Pavel Gol'din4, Wout Krijgsman5, Davit Vasilyan6

The Eastern Paratethys (EP) is a former epicontinental basin that unified the Black Sea, Caspian Sea and the Dacian Basin and played a crucial role in shaping of the west…

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Shallow Asthenospheric Volumes Beneath Cenozoic Volcanic Provinces in the Circum-Mediterranean: Evidence from Seismic Tomography, Magmatic Geochemistry and Integrated Geophysical-Petrological Thermochemical Modelling
2023
Amr El-Sharkawy1, Thor Hansteen2, Carlos Clemente-Gomez3, Javier Fullea3, Sergei Lebedev4, Thomas Meier1

To relate Intraplate volcanism to upper mantle structure, we investigate small-scale structural-variations of the lithosphere-asthenosphere beneath the Circum-Mediterranean using regional high-resolution 3-D surface-wave tomography. The imaged low shear-wave velocities (Vs

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Shallow-marine carbonate cementation in Holocene segments of the calcifying green alga Halimeda
2021
Thomas Mann1,2, André Wizemann1,3, Marleen Stuhr1,4,5, Yannis Kappelamann1,6, Alexander Janßen1,6, Jamaluddin Jompa7, Hildegard Westphal1,6

Early-diagenetic cementation of tropical carbonates results from the combination of numerous physico-chemical and biological processes. In the marine phreatic environment it represents an essential mechanism for the development and stabilization…

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Shaping responsible future experts: the need for integrating Geoethics in Geoscience university education
2021
Dominic Hildebrandt1,2

Geoscientific know-how is essential to tackle pressing challenges: climate change, geohazards, energy and raw material supply. However, technical expertise alone – without considering societal dimensions – will not be sufficient…

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Shaping the northern Gondwana margin before the Variscan orogeny: large-scale geodynamic processes and paleogeography
2023
Jiří Žák1

The Cadomian accretionary orogeny at the end of Neproterozoic to early Cambrian was one of the principal crustal growth events in Europe, as indicated by a number and widespread distribution…

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Shards of glass: incorporation of trash in modern beachrock on Eleuthera Island, Bahamas, and its implications for in situ studies of fast carbonate cementation
2022
Michaela Falkenroth1, Scarlette Hsia2

Beachrocks are bodies of beach sediment cemented with carbonate minerals. They are not only useful archives of coastal evolution, but are also investigated as means of protection from coastal erosion….

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Sheared peridotites from the cratonic mantle beneath Lesotho (Kaapvaal craton): Investigating deformation and related metasomatic processes from mid-lithospheric depth to the LAB.
2022
Catharina Heckel1, Alan B. Woodland1, Jolien Linckens2, Sally A. Gibson3, Hans-Michael Seitz1

Sheared peridotites give direct evidence for deformation processes in the subcratonic mantle shortly before their transport to the surface by kimberlites. We studied 12 sheared peridotites (11 garnet-peridotites, one spinel-bearing)…

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SHmax orientation in the Alpine region from stress-induced anisotropy in nonlinear elasticity derived from ambient noise correlations
2023
Yongki Andita Aiman1, Andrew Delorey2, Yang Lu1, Götz Bokelmann1

Major faults such as the Periadriatic Fault and the Giudicarie Fault have been active in the past, and they have even been central features of the larger-scale deformation in the…

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Short-term terrestrial climate variability through MIS 3 and Termination 1
2021
Daniel Veres1,2

Marine Isotope Stage (MIS) 3 represents a critical interval for understading the response of terretrial environments to rapid climate change driven by orbital focring. As the primary constituent of loess…

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Should we correct speleothem carbon isotope records for degassing and prior calcite precipitation?
2021
Heather Stoll1, Franziska Lechleitner2, Christopher Day3, Oliver Kost1, Laura Endres1, Carlos Perez4

The carbon isotopic signature acquired from soil/epikarst processes may be a primary environmental signal of interest to interpret from speleothem d13C. However, this signal can be modified by prior calcite…

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SHRIMP U-Pb zircon dating, bulk-rock geochemistry and Sr–Nd–Pb isotope Geochemistry of the Çaykara Intrusive Complex, Eastern Pontides, NE Turkey: Implications for lithospheric mantle and lower crustal sources in arc-related I-type magmatism.
2021
Almashramah, Yaser Abdullah Abdullah (1); Şen, Cünyet (2)

The study area situated in the eastern of Black Sea region, (Trabzon) district and occupied the western part of the Kaçkar Batholith. This study aims to study petrological, geochronological and…

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Si isotope thermometry in silicified carbonate
2021
Michael Tatzel1,2, Marcus Oelze2, Moritz Liesegang3, Maria Stuff4, Michael Wiedenbeck2

Cherts, including silicified carbonates, are one of the most detailed and alteration resistant archives of near-surface environments. Yet, the information disclosed in form of stable isotope ratios of Si and…

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Siderophile volatile element inventory in lunar magmatic rocks and mantle sources
2022
Philipp Gleißner1, Julie Salme1, Harry Becker1

The volatile element inventory of the Moon and the processes of volatile loss and/or gain (e.g., degassing and late accretion) are key aspects for our understanding of the Earth-Moon system….

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Siderophile volatile element inventory of lunar mare basalts: Constraints on magmatic processes and mantle sources
2023
Philipp Gleißner1, Niklas Kallnik1, Harry Becker1

Elevated contents of water and moderately volatile elements in some lunar materials have invigorated the discussion on the volatile content of the lunar interior and on the extent to which…

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Significance of epidosite alteration for seafloor sulphide deposits and for fluid fluxes through the oceanic crust
2021
Larryn William Diamond, Samuel Weber, Peter Alt-Epping, Alannah Brett

Epidosites are a prominent type of subseafloor hydrothermal alteration of basalts in ophiolites and Archean greenstone belts, showing an end-member mineral assemblage of epidote + quartz + titanite + Fe-oxide….

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Significance of millennial-scale coastal upwelling and Rio Loa variability for Atacama paleoclimate during MIS 2
2022
Jessica Fabritius1, Andrea Jaeschke1, Jassin Petersen1, Volker Wennrich1, Patrick Grunert1

The Atacama Desert located in northern Chile is one of the driest places on earth. The factors determining recent hyperarid climate conditions are known and their interplay and variability on…

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Silicon and Carbon content in the Earth’s inner core constrained from sound velocities at extreme conditions
2022
Susanne C. Müller1, Efim Kolesnikov1, Georgios Aprilis2, Alexandr Chumakov2, Davide Comboni2, Michael Hanfland2, Ilya Sergeev3, Lélia Libon4, Wolfgang Morgenroth4, Max Wilke4, Xiang Li1, Hannah Koppetz-Mitra1, Arno Rohrbach1, Jasper Berndt1, Carmen Sanchez-Valle1, Ilya Kupenko1

The inner core is comprised of iron and nickel as the main components. However, the composition of the Earth’s core remains enigmatic to date. The comparison of densities and seismic…

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Similarities of the Scotia and Caribbean Plates: Implications for a common plate tectonic history?!
2023
Christian Burmeister1, Paul Wintersteller2, Martin Meschede1

The active volcanic arcs of the Scotia- and Caribbean Plate are two prominent features along the otherwise passive margins of the Atlantic Ocean, where subduction of oceanic crust is verifiable….

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Similarities of the Scotia and Caribbean Plates: Implications for a common plate tectonic history?!
2021
Christian Burmeister1, Paul Wintersteller2, Martin Meschede1

The active volcanic arcs of the Scotia- and Caribbean Plate are two prominent features along the otherwise passive margins of the Atlantic Ocean, where subduction of oceanic crust is verifiable….

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Simulation of flow through a single fracture calibrated with air permeameter measurements Marco Fuchs, Sina Hale, Gabriel C. Rau, Kathrin Menberg, Philipp Blum
2021
Marco Fuchs, Sina Hale, Gabriel C. Rau, Kathrin Menberg, Philipp Blum

Determining fluid flow through natural fractures is an important task in many geoscience-related fields, such as geothermics. In order to estimate crucial parameters of single fractures controlling the flow and…

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Simulation of neptunium migration as a function of redox conditions and clay mineralogy
2023
Majedeh Sayahi1, Theresa Hennig2, Vinzenz Brendler3, Michael Kühn1

Migration of neptunium, i.e. 237Np, a minor component of high-level nuclear waste, is in focus regarding the safety of nuclear waste disposal sites due to its long half-life and radiotoxicity….

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Simulation study of hydrate formation from dissolved methane in the LArge-scale Reservoir Simulator (LARS)
2021
Zhen Li1,2, Thomas Kempka1,2, Erik Spangenberg1, Judith Schicks1,2

Hydrate formation from dissolved methane in saline solutions is a hydrochemical process, resulting in the accumulation of gas hydrates in sedimentary strata under the seafloor or overlain by permafrost regions….

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Simulations with numerical model PCSiWaPro® for the infiltration system of treated wastewater on Sardin village, Syria
2021
Abdulnaser Aldarir, Peter-Wolfgang Graeber, Ian Desmond Gwiadowski, Rene Blankenburg

The improvement of groundwater availability in arid areas by infiltration of treated wastewater will play an important role in the next few years. Small wastewater plant is a good alternative…

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Single borehole dilution tests using a permeable injection bag and a novel point-injection probe for the hydraulic characterization of karst aquifers
2021
Nikolai Fahrmeier, Nadine Goeppert, Nico Goldscheider

Single borehole dilution tests are a method for characterizing groundwater monitoring wells or boreholes and can either be conducted as uniform injection throughout the entire saturated length or as point…

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Site selection process for the deep geological repository in the Czech Republic
2023
Marek Vencl1, Lukáš Vondrovic1, Martin Valter1

The main criterion concerning the planned deep geological repository comprises its long-term safety, which must be ensured for a period of hundreds of thousands of years. Therefore, particular attention is…

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Skeletons in the closet: ethics, law, and politics in palaeontology
2022
Nussaïbah B. Raja1

Palaeontology is unique among scientific disciplines in that it thrives on the exchange of information across diverse communities, both academic and non-academic. However, palaeontological research does not always best serve…

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Slags from DRI-EAF steel making – a case study on upcoming by-products from the decarbonized steel industry
2023
Lars Hans Gronen1, Derik Demond1, Dirk Pflaeging2, David Algermissen1

Due to the Green Deal proposed by the European Union, several industry sectors in Europe are forced to change the production techniques towards a zero-carbon dioxide emission until 2050. For…

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Slip rate of the Danghe Nan Shan thrust fault from 10Be exposure dating of folded river terraces: Implications for the strain distribution in northern Tibet
2021
Qiang Xu1, Ralf Hetzel2, Andrea Hampel3, Reinhard Wolff2

The northeastward motion of the Tibetan Plateau along the Altyn Tagh strike-slip fault causes thrust faulting in three parallel mountain ranges (Qilian Shan, Daxue Shan, Danghe Nan Shan) in the…

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Slip tendency analysis for 60 3D faults in Germany and adjacent areas
2021
Luisa Röckel1, Steffen Ahlers2, Birgit Müller1, Karsten Reiter2, Oliver Heidbach3, Tobias Hergert2, Andreas Henk2, Frank Schilling1

Tectonic faults are of great importance for many underground applications such as hydrocarbon extraction, geothermal operations or nuclear waste repositories. In particular, the fault reactivation potential is crucial in regards…

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Slip tendency of faults and pore pressure evolution in the “Wasserprovinz Haus Aden” – Ruhr area
2021
Thomas Niederhuber1, Birgit Müller1, Lukas Müller1, Thomas Röckel2, Frank Schilling1, Felix Allgaier3, Martina Rische4

Mining has required pumping in a wide area of the Ruhr region. In part, this leads to subsidence of more than 10 m. The matrix permeability of the rocks in…

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Slope Stability Challenges in Repurposing Abandoned Coal Mine Pit for Hybrid Pump Hydropower Storage
2023
Ershad Ud Dowlah Pahlowan1

The transition towards renewable energy sources has led to a growing need for effective energy storage systems to ensure a stable and reliable power supply. Solar and wind power, although…

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Sm-Nd dating of fluorites from the Vergenoeg, Buffalo and Morgenzon 533 KQ deposits, Bushveld Igneous Complex, South Africa: Evidence for late hydrothermal fluorite formation
2022
Guillaume Jacques1, Torsten Graupner1, Reiner Klemd2, Friedhelm Henjes-Kunst1

We investigated three fluorite deposits associated with the Bushveld Igneous Complex in South Africa for their trace element characteristics (e.g., REE+Th+U): the two major and world-class Vergenoeg and Buffalo deposits,…

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Social licence to operate in the applied geo- and engineering projects
2021
Tobias Rudolph1, Jörg Benndorf2, Peter Goerke-Mallet1

The social license to operate of projects in applied geosciences and engineering has been an issue since the days of Georg Agricola. Its importance for the reputation of companies has…

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Soil gas monitoring for identifying potential ground movements and earthquakes in the frame of mine flooding – Requirements, methods and developments
2021
Olaf Ukelis, Roman Zorn, Detlev Rettenmaier

Soil gas surveys (e.g. 222Rn, CO2, O2 etc.) are very well known in diverse backgrounds such as the detection of geological faults, prediction of earthquakes or monitoring of gas contamination…

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Soil gas surveys for post-mining flooding monitoring
2022
Olaf Ukelis1, Felix Allgaier2, Thomas Niederhuber3, Detlev Rettenmaier1, Roman Zorn1

A consequence of shutting down coal mines as it was done in Germany until 2018 is a rising mine water level posing the risk of possible mining damage. In the…

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Solid bitumen in shales from the Middle to Upper Jurassic Banik section of northernmost Iraq: Implication for reservoir characterization
2022
Nagham Omar1, Tom McCann1, Ali I. Al- Juboury2, Isabel Suárez-Ruiz3

Iraq is the sixth largest oil reserve in the world, with current proven reserves of 115 billion barrels of oil (BBO) and 110 trillion cubic feet (TCF) of gas. The…

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Solid Earth applications of global gravity data: from submarines to satellites
2021
Bart Root

Prof. Vening Meinesz opened up the oceans for high precision gravimetric observations. Today, his submarine adventures are an inspiration to my science and education in gravimetric research. We will follow…

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Solubility of water in peridotite liquids and the prevalence of steam atmospheres on rocky planets
2022
Paolo A Sossi1, Peter M E Tollan1, James Badro2, Dan J Bower3

Atmospheres are products of time-integrated mass exchange between the surface of a planet and its interior. On Earth and other planetary bodies, magma oceans likely marked significant atmosphere-forming events, during…

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Solute-solvent interactions in supercritical water: density-, and temperature-dependent effects on the Krichevskii parameter of different monovalent salts
2022
Maximilian Schulze1, Sandro Jahn1

Reliable models describing chemical equilibria of aqueous fluids at high temperatures (T) and pressures (P) are crucial to several areas of the geoscience, ranging from problems in ore deposit geology…

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Source of metals in ultramafic-hosted VMS deposits: insight from the Troodos ophiolite and ODP Hole 735B
2021
Clifford Patten1, Malte Junge2, Alexandre Peillod1

Volcanogenic massive sulfide (VMS) deposits associated with mafic-ultramafic rocks show strong structural control and are located at or in the vicinity of low angle detachment faults such as oceanic core…

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Source-normalized α-dose: discrimination of first- and multi-cycle detrital zircon
2021
Maximilian Dröllner, Milo Barham, Christopher L. Kirkland

Detrital zircon (DZ) U-Pb geochronology is widely applied in the geosciences to address a very wide range of questions. However, zircon is refractory and discrimination of first- versus multi-cycle origin…

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Southeastern Atlantic deep-sea warmth across two early Eocene transient global warming events
2020
Tobias Agterhuis, Martin Ziegler, Lucas J. Lourens,

Paleoclimate Biogeology, Earth Sciences Department, Utrecht University, The Netherlands brbr br br The early Eocene (56–48 Ma) can provide important constraints on the near-future warm climate state (Zachos et al.,…

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SpannEnD – The crustal stress state of Germany
2021
Steffen Ahlers1, Andreas Henk1, Tobias Hergert1, Karsten Reiter1, Birgit Müller2, Luisa Röckel2, Oliver Heidbach3, Sophia Morawietz3, Magdalena Scheck-Wenderoth3, Denis Anikiev3

Information about the recent stress state of the upper crust is important for understanding tectonic processes and for the use of the underground in general. A currently important topic, the…

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Spatial and temporal patterns of rare earth elements in the seaweed Saccarina latissima along the Norwegian coast
2021
Stefania Piarulli1, Tomasz Ciesielski2, Silje Forbord3, Achilleas Zevros2, Bjørn Henrik Hansen1, Bjørn Munro Jenssen2, Julia Farkas1

Rising rare earth elements (comprising the 15 lanthanoids plus yttrium (REY)) processing and use can lead to increased anthropogenic REY release into the environment, representing a potential environmental concern. Seaweeds…

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Spatial precipitation shifts in the Doce Basin (SE Brazil) during MIS 6-5
2022
Iris Arndt1, Rainer Petschick1, André Bahr2, Alicia Hou2, Jacek Raddatz1, Ana Luiza S. Albuquerque3, Silke Voigt1

Precipitation patterns in present-day southeastern Brazil are mainly regulated by the South American Summer Monsoon. The southeast Brazilian Doce Basin is expected to suffer from droughts and flooding as a…

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Spatial variations in submarine caldera-hosted hydrothermal systems: Insights from sulfide chemistry, Niuatahi caldera, Tonga rear-arc
2021
Jan J. Falkenberg1, Manuel Keith1, Karsten M. Haase1, Reiner Klemd1, Harald Strauss2, Christian Peters2, Jonguk Kim3

Submarine “black smoker” systems and their associated seafloor massive sulfides (SMS) may represent economic resources for future generations. However, the processes leading to spatial variations in the mineralogical and chemical…

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Spatio-temporal Dynamics of Hydrothermal Circulation over 10 million years of Ultraslow- Rifting and Spreading
2023
Javier Garcia-Pintado1, Marta Perez-Gussinye1, Leila Mezri1

Present spatiotemporal variations of hydrothermal fluxes in the modern and recent ocean provide an observational snapshot of the dynamic interaction between the tectonics of ocean basins and submarine hydrothermal systems….

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Speciation of Rare Earth Elements (REEs) in hydrothermal systems
2022
Rajorshi Chattopadhyay1, Sandro Jahn1

The Rare Earth Elements (REEs) are an important group of elements both geologically as well as economically. REEs find important applications in the fields of green energy, electric vehicles and…

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Specifics of downhole logging data for time series analysis and cyclostratigraphy
2021
Christian Zeeden, Arne Ulfers, Mehrdad Sardar Abadi, Thomas Grelle, Katja Hesse, Katharina Leu, Thomas Wonik

There is a large amount of downhole logging data gathered for scientific and commercial purposes, but studies applying time series analysis and cyclostratigraphy are not abundant. Especially the fast availability…

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Spectroscopic methods in modern geosciences
2021
Kaliwoda, Melanie (1); Göttlicher, Jörg (2)

Spectroscopic methods with their capability to gain information on atoms and molecules are becoming more and more relevant in earth sciences in order to open up new fields of research…

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Stable antimony isotope fractionation during surface alteration of primary ores
2022
Andreas B. Kaufmann1, Marina Lazarov2, Stefan Weyer2, Juraj Majzlan3

The orogenic Sb-Au deposits near Pezinok, located in the Malé Karpaty Mts. (Slovakia), were mined until 1992. Ores were extracted by flotation with low recovery rates, resulting in mining waste…

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Stable iron isotope fractionation in metal sulfidation at 600–1200 °C
2022
Christian J. Renggli1, Ingo Horn2, Stephan Klemme1, Stamatis Flemetakis1, Stefan Weyer2

Iron metal and troilite co-exist in ordinary chondrites and iron meteorites [1,2]. Here, we present results from Fe metal equilibrium sulfidation experiments in evacuated silica glass tubes at 600-1200 °C….

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Stable zirconium isotope constraints on the petrogenesis of carbonatites
2023
Tomas Magna1, Vladislav Rapprich1, Shengyu Tian2, Frederic Moynier3, R.Johannes Giebel4

Refractory as well as insoluble nature of zirconium (Zr) dictates that its behavior mostly is driven by magmatic fractionation whereby Zr-rich phases, such as zircon or baddeleyite, and to a…

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Starting the recycling engine: how far back in time can we fingerprint crust in Earth’s mantle?
2021
Sebastian Tappe1, Katie A. Smart2, Richard A. Stern3

The nature of the tectonic processes that shaped the early Earth remain unresolved, hampered not only by the sparse Early Archaean crustal rock record, but also by the dearth of…

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State of the Art: Summary of the geoscientific content in German curricula
2023
Alexandra Mauerberger1, Tamara Fahry-Seelig2, Sylke Hlawatsch3

We analyzed the curricula of the natural science teaching subjects of all federal states in Germany regarding their geoscientific content. With this information we can better address the demand of…

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Storage in the energy transition: A regulator perspective
2021
Wouter van der Zee

The underground storage will play an important role in the energy transition, both for energy storage as for CCS. Current storage activities in the Netherlands are for natural gas, diesel…

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Storms cause peatland flooding and paint it black: Sulfur biogeochemistry of a rewetting temperate coastal area
2023
Anna-K. Jenner1, Rhodelyn Saban1, Julia Westphal1, Maurits Krüger1, Denise Otto1, Benjamin Rach1, Lucas Winski1, Mary A. Zeller1, Catia M. Ehlert von Ahn1, Franziska Koebsch2, Manon Janssen2, Gerald Jurasinski2, Miriam Toro2, Luz Eva Fernández-Fernández1, Iris Schmiedinger1, Michael E. Böttcher1

Land-ocean interactions in the coastal zone are of particular interest regarding the exchange of substances, like nutrients, carbon, sulfur, metals, and water. The rising sea level is and will enhance…

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Stormwater harvesting in ephemeral streams: how to effectively bypass clogging layers and thick vadose zones
2021
Jose David Henao Casas1,2, Fritz Kalwa3, Marc Walther3,4, Randolf Rausch5

In drylands, stormwater is often collected in surface basins and subsequently stored in shallow aquifers via infiltration to cope with water scarcity. These groundwater recharge schemes are often accompanied by…

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STORYTELLING AS A MULTIDISCIPLINARY STRATEGY TO PROMOTE CRITICAL THINKING AND STUDENTS´ MEANINGFUL LEARNING
2023
Dulce Manuel Lima1, Isabel Maria Teixeira1, Sofía Riaño2, Clara Maria Vasconcelos3

The Science/Technology/Society perspective in promoting scientific literacy in metal recycling becomes fundamental for adopting good behaviours in our society that contribute to the independence of Europe on critical raw materials…

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Strategies for Developing Student Geoscience Identity
2023
Sharon M Locke1

Countries around the world are reporting a decline in student interest in geoscience careers, even as the need for trained geoscientists who can help solve global challenges in sustainability is…

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Strategies to enable FAIR and Open Data and Software
2021
Hübner, Andreas (1); Fleischer, Dirk (2)

Demands for integrity, transparency and reproducibility of today’s research are increasing, posing new challenges for research data and software management in all science communities. The geoscience community is responding to…

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Stratigraphic gaps and durations of the carbon isotope events during the Middle-Late Ordovician in Yichang, South China
2020
Chuan zhen Ren (1,2), Qiang Fang (1,2) & Huaichun Wu (1,2)

The Middle-Late Ordovician transition is one of the most important periods of the environmental changes and biotic turnovers throughout the earth’s history. Here, we used magnetic susceptibility as the paleoclimate…

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Stratigraphic Modeling and Lithosphere Dynamics
2021
Suess, Michael

Sedimentary Basins record the evolution of the lithosphere in the deposited sediments and their stratigraphic architecture. Stratigraphic modeling, coupled with dynamic geomechanics simulations allow to test hypothesis about crustal evolution…

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Stratigraphy und evolutionary patterns in middle jurassic ammonites
2023
Eckhard Mönnig1

The biostratigraphy of the Jurassic system has made many advances in recent years. We can distinguish over 50 successive faunal horizons in the Callovian, which corresponds to a resolution of…

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Strength and anisotropy of textured ε-FeSi at extreme conditions
2022
Efim Kolesnikov1, Ilya Kupenko1, Melissa Achorner1, Christian Plückthun1, Hanns-Peter Liermann2, Sebastien Merkel3, Carmen Sanchez-Valle1

The cores of terrestrial planets are comprised of Fe-Ni alloys, with around 5-10 weight % of the light elements. They account for the observed core density deficit compared to the…

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Strengthening Open Science Practices Through re3data, the Global Registry of Research Data Repositories
2023
Nina Leonie Weisweiler1, Kirsten Elger2, Heinz Pampel3, Alexandra Axtmann4, Roland Bertelmann1, Thanh Binh Nguyen4, Edeltraud Schnepf4, Vivien Petras5, Angelika Semrau4, Dorothea Strecker5, Robert Ulrich4, Arne Upmeier4, Paul Vierkant6, Gabriele Weickert4, Michael Witt7

For more than a decade, re3data (https://www.re3data.org/), the global registry of research data repositories, has helped researchers, funding agencies, libraries, and other research data services to find, identify, and reference…

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Stress state estimation – variability assessment of model results
2023
Karsten Reiter1, Oliver Heidbach2, Moritz Ziegler3, Silvio Giger4, Rodney Garrard4, Jean Desroches5, Erling Fjær6

The upper crust of the Earth is used more and more to transport and extract raw materials and energy. It is also used for the final disposal of radioactive waste…

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Stromatolite-like structures within microbially laminated sandstones of the Paleoarchean Moodies Group, Barberton Greenstone Belt, South Africa
2023
Christoph Heubeck1, Sebastian Reimann1, Martin Homann2

We report abundant small calcareous mounds associated with fossilized kerogenous microbial mats in tidal-facies sandstones of the predominantly siliciclastic Moodies Group (ca. 3.22 Ga) of the Barberton Greenstone Belt (BGB),…

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Stromatolites trace metal availability in microbial habitats of the Miocene hypersaline lagoon in the Oberpullendorf Basin, Austria
2022
Sebastian Viehmann1, Robert Kujawa2, Simon V. Hohl3, Nathalie Tepe4, Alexandra S. Rodler5, Thilo Hofmann4, Erich Draganits2

Stromatolitic carbonates formed in ancient microbial mats and provide unique geochemical archives to reconstruct palaeo-environments of microbial life. In this study, we report C-O isotopes and trace metal concentrations of…

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Stromatolitic microorganisms in and on top of fluid-escape structures of the 3.2 Ga Moodies Group
2021
Sebastian Reimann1, Christoph Heubeck1, Martin Homann2, Deon Johannes Janse van Rensburg1, Michael Wiedenbeck3

The global record of early life is only poorly preserved, but has an ark in the 3.2 Ga Moodies Group of the Barberton Greenstone Belt, South Africa and Eswatini. It…

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Structural and geochemical data of the Mourne nappe near Kerames (Crete): Constraints on the tectonometamorphic evolution of the Uppermost Unit
2022
Nicolas Neuwirth1, Nora Groschopf2, Jolien Linckens1, Horst Marschall3, Rainer Petschick1, Gernold Zulauf1

The Uppermost Unit of Crete is attributed to the Internal Hellenides and consists of different nappes derived from an Upper Cretaceous arc (Asterrousia), and a late Jurassic to Cretaceous subduction-accretion…

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Structural and Geophysical Characterisation of the Crystalline Basement in the Northern Upper Rhine Graben
2021
Matthis Frey1, Claire Bossennec1, Lukas Seib1, Kristian Bär1, Ingo Sass1,2

In the northern Upper Rhine Graben (URG), the crystalline basement constitutes an attractive target for deep geothermal exploitation due to the favourable reservoir temperatures and abundance of natural fractures and…

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Structural control on magma composition in northern Iceland and the southern Kolbeinsey Ridge
2022
Christoph Beier1, Adam Abersteiner1, Karsten Haase2, Sæmundur Halldórsson3, Colin Devey4

Geochemically enriched plume sources interacting with depleted, adiabatically upwelling mid-ocean ridge mantle allow for the tracing of processes of melting and melt transport through the mantle and crust. New major,…

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Structural incorporation of arsenate into vivianite
2022
Jeffrey Paulo H. Perez1, Marharyta Okhrymenko1, Roberts Blukis1, Vladimir Roddatis1, Sathish Mayana1, J. Frederick W. Mosselmans2, Liane G. Benning3

Vivianite is a stable ferrous iron phosphate [FeII3(PO4)2·8H2O] that forms in oxygen-poor, Fe2+- and organic-rich environments. Isomorphic substitution of divalent cations (e.g. Mg and Mn) for Fe(II) in the structure…

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Structural investigations on iron-ore sinter phases – crystallography meets applied mineralogy
2022
Volker Kahlenberg1, Hannes Krüger1

Sinter plants are an integral part for the preparation of iron ores for the blast furnace process. In a series of complex reactions, semi-molten, centimeter-sized aggregates are formed containing ore…

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Structural modelling of Agbada (Tertiary) sandstone reservoirs in “Atled Creek”, Onshore Niger Delta, Nigeria
2021
Olajide Jonathan Adamolekun1, Benjamin Busch1, Idongesit Akwaowoh2, Michael P. Suess3, Christoph Hilgers1

The distribution of rocks and rock properties is an important part of an overall strategy for reservoir development, placement of new wells and prediction of future production. It also provides…

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Structural study of a shear zone in the Koralm Complex at Hirschegg-Pack (Austroalpine Nappes, Austria)
2023
Pascal Michael Woiton1, Ruth Keppler1, Nikolaus Froitzheim1

The Koralm Complex in eastern Austria comprises various gneisses and eclogite lenses which record high-pressure metamorphism of Late Cretaceous age, acquired in an intracontinental subduction zone. The mechanism of exhumation…

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Structure and density configuration of Germany’s subsurface: 3-D-Deutschland, an updated three-dimensional lithospheric-scale model
2021
Denis Anikiev1, Judith Bott1, Mauro Cacace1, Hans-Jürgen Götze2, Magdalena Scheck-Wenderoth1,3

With this study we revise and improve the three-dimensional lithospheric-scale structural and density model of Germany (3-D-D). Major shortcomings of this model resulted from joining three regional 3-D models that…

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Students’ Interest in Climate Change – Results of a Quantitative Questionnaire-Based Study in Germany
2023
Steffen Höhnle1, Hanna Velling1, Jan Christoph Schubert1

In addressing climate change as one of the key problems of humanity (IPCC 2014), the school subject of geography is of particular importance, as it is a leading subject for…

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Studying glacial/interglacial cycles from downhole logging data: an application to the ICDP drilling project Lake Junín, Peru
2020
Simona Pierdominici (1), Christian Zeeden (2), Jochem Kück (1), Donald Rodbell (3) & Marc Abbott (4)

Can the history of the lake records covering the glacial-interglacial cycles be reconstructed from downhole logging data without the high-resolution data derived from core analysis? To answer this question, we…

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Subduction and collisional orogenesis: comparison of model predictions and observations with application to the Alpine orogeny and Tibetan plateau
2023
Stefan Markus Schmalholz1

The Alps are one of the best studied orogens, but arguably also one of the most disputed ones. Several major geodynamic processes remain unclear, such as the mechanism of (U)HP…

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Subduction Dynamics and Rheology Control on Forearc and Backarc Subsidence: Numerical Models and Observations from the Mediterranean
2021
Attila Balazs1, Claudio Faccenna2, Taras Gerya1, Kosuke Ueda1, Francesca Funiciello2

The dynamics of subduction zones is linked to the rise and demise of forearc and backarc sedimentary basins in the overriding plate. Subsidence and uplift rates of these distinct basins…

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Subduction initiation and arc evolution from a rear-arc perspective – A synthesis of results from IODP Exp. 351
2021
Philipp A. Brandl

Subduction is a key process for the plate tectonic cycle and is responsible for the bimodal composition of the Earth’ crust. Whereas active subduction zones can be directly observed at…

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Subsidence monitoring above the gas storage cavern field Epe (North Rhine-Westphalia) with Interferometric SAR displacement time series
2023
Alison Seidel1, Malte Westerhaus1, Markus Even1, Hansjörg Kutterer1

The first Hydrogen storage caverns of Germany are planned to be constructed at the salt cavern field Epe in NRW, where 114 caverns, of which more than 50 are currently…

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Subsolidus fluid driven post-magmatic mineral formation in peridotite and ijolite rocks from the Kovdor and Iivaara complexes (Kola Alkaline Province)
2022
Sven Sindern1, Ulrich Kramm1, Fahmi Hakim1, Johannes Glodny2

Rocks exposed in alkaline magmatic complexes and associated rare metal deposits are a product of multistage formation. Petrographic, mineralogical and geochemical characteristics suggest that post-magmatic metasomatic mineral reactions triggered by…

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Subsurface data availability: benchmarking data access arrangements in several Western European countries
2020
Eline Van Malderen (1) & Guido Hoetz (2)

During the current energy transition, understanding our deep subsurface appears more important than ever. Traditional energy resources such as oil and gas might remain dominant in coming years but are…

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Subsurface fluid storage in future energy systems
2021
Miocic, Johannes (1); Heinemann, Niklas (2); Hangx, Suzanne (3); Edlmann, Katriona (2)

Storage of energy and carbon dioxide in subsurface geological formations has been identified as key for future systems relying on renewable, zero carbon power and heat generation. All subsurface storage…

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Superimposed diagenetic and hydrothermal processes – the key to high grade Zn mineralization in sedimentary basins
2022
Joseph Michael Magnall1, Sarah Anne Gleeson2

Clastic-dominant (CD-type) deposits typically comprise huge base metal and sulfur anomalies (> 106 tons) that are concentrated in a small number of Proterozoic and Phanerozoic basins. Some Phanerozoic deposits also…

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Suppression of Wind Turbine Noise from Seismological Data
2021
Janis Heuel, Wolfgang Friederich

Seismologist noticed are worsening of station quality after the installation of wind turbines (WTs) close to seismological stations. Since WTs and seismological stations are installed mostly in areas with low…

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Surface processes on the Moon, Mars and the Earth
2023
Giulia Magnarini1

Planetary surfaces hold evidence of past geological processes through the geomorphological record of landforms. Fast erosion rates, active tectonics, and a thick atmosphere contribute to partial or total loss of…

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Sustainability in energy storages – How modern geoscience concepts can improve underground storage monitoring
2021
Benjamin Haske, Tobias Rudolph, Bodo Bernsdorf

Re-using of large-volume salt caverns for the intermediate storage of liquid and gaseous energy carriers is an indispensable step on the way to a sustainable energy economy. Continuous development of…

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Sustainable Earth from processes to resources
2021
Christoph Hilgers, Jürgen Grötsch (eds)

DGGV e.V. Jahrestagung, 19. bis 24. September 2021 in Karlsruhe Vorwort Die Geowissenschaften erforschen die Prozesse der Erde und gewinnen Georessourcen zum Erhalt unserer Lebensgrundlagen und zur Gestaltung unseres Lebensraums.Dies…

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Sustainable metal (Fe) recovery using stamp press bricks made of dusts and sludges from iron and steel making processes
2022
Lars Gronen1, Carsten Gondorf2, Thomas Willms2, David Algermissen1, Lorenz Mild2, Thomas Echterhof2, Herbert Pfeifer2

In 2020 approximately 1.5 million tons of dusts and sludges were produced in German steel plants along the integrated steel route via blast furnace and LD converter. This residues from…

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Sustainable mining of sand and gravel in the UNESCO Global Geopark Harz. Braunschweiger Land. Ostfalen
2021
Claus Evers2, Henning Zellmer1

The company Evers und Co GmbH operates two gravel plants in Süpplingen and Uhry / Helmstedt district and thus produces various sands and gravel, topsoil, mineral mixtures and concrete aggregates,…

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Sustainable use of geoheritage sites and areas across geotrails in UNESCO Global Geoparks and of related elements at Messel Pit World Heritage Site, Germany
2020
Marie-Luise Frey

The sustainable use of geological resources is a management task, demand and challenge. When the European Geoparks Network was founded in 2000, a new view fell on geosites, geotopes, former…

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Sustainable use of geological resources in geopark areas
2021
Zellmer, Dr. Henning (1); Wilde, Dr. Volker (2); Röhling, Dr. Heinz-Gerd (3)

In addition to the world cultural and natural heritage and biosphere reserves, Geoparks were established as a third category by UNESCO in 2015. Since then, the claim has been formulated…

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Sweet death – lead glazed Renaissance ceramics and their interaction with acidic foodstuffs
2022
Thilo Rehren1, Thomas Delbey2, Brunella Santarelli1, Giulia Fogarizzu1, Kaare Rasmussen3

We present analyses of lead glazes from dishes and storage bowl from six Renaissance (1536 to 1660 CE) sites in southern Denmark and northern Germany. All are high-lead silicates, ranging…

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Systematic analysis of precision, long-term stability and data processing of MC-ICP-MS 230Th/U-dating of secondary carbonates
2021
Inga Kristina Kerber, Fabian Kontor, Jennifer Arps, René Eichstädter, Sophie Warken, Norbert Frank

MC-ICP-MS has become the clearly dominant technology in 230Th/U-dating over the last 20 years. The ongoing increase in measurement performance allows for ε-precision by now (Andersen et al., 2004; Cheng…

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Systematic variations in trace element composition of pyrites from the Xunmei hydrothermal field (26°S), Mid-Atlantic Ridge
2023
Lei Fan1, Guozhi Wang2, Astrid Holzheid3, Basem Zoheir4, Xuefa Shi5, Matthias Frische6, Qing Lei2

Two zoned inactive chimney samples from the SMAR 26°S (Xunmei) hydrothermal field were studied petrographically and by in-situ LA-ICP-MS analysis. Morphologically different pyrites precipitated with increasing temperatures from the outermost…

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Systematics of submarine ‘forward’ and ‘reverse’ weathering
2022
Gerrit Müller1, Appy Sluijs1, Jack J. Middelburg1

Submarine weathering reactions associated with cation-rich (‘forward’) and cation-poor (‘reverse’) materials are significant, yet poorly understood parts of marine biogeochemical cycles, especially in coastal zones, where abundant lithogenic material is…

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Take a walk on the clay-site – tracing raw materials through experimental archaeometry
2022
Frank Emanuel Gfeller1, Nadja Mirjam Melko1, Marie Usadel2

Suitable raw material is the basis for every ceramic object. In order to study the artisanal choices and factors associated with the selection of clays for Bronze Age ceramic production…

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Taking the pressure out of the Archean Metamorphism: The role of CO2 in assessing metamorphic conditions of the Isua supracrustal belt, W-Greenland
2022
Thomas Müller1, Dominik Sorger1, Alexander Webb2

The Eoarchean Isua Supracrustal Belt (ISB), West Greenland exposes one of the oldest rock records on Earth. Its tectonic setting is still subject of debate with interpretations ranging from plate…

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Technological Innovations for more Efficient Mineral Resource Exploration
2020
Torsten Gorka

Saving exploration time, improving cost efficiency, and achieving higher levels of social and environmental acceptance: these are the key aims of the development of novel exploration methods investigated by the…

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Tectonic accretion controls erosional cyclicity in the Himalaya
2021
Dirk Scherler1,2, Sanjay Kumar Mandal1,3, Hella Wittmann1

The evolution of Earth’s climate over geological timescales is linked to surface erosion by weathering of silicate minerals and burial of organic carbon. However, methodological difficulties in reconstructing erosion rates…

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Tectonic and environmental perturbations at the Permian-Triassic boundary: insights from the Blue Nile River Basin in central Ethiopia
2021
Maryam Mansouri1, Matthias Hinderer1, Laura Stutenbecker1, Guido Meinhold2, Enkurie L. Dawit3, Jasper Berndt4, Robert Bussert5

The Blue Nile River Basin contains a thick fluvio-lacustrine sediment succession of Permian to the Jurassic age. Its evolution is linked to extensional tectonics during the break-up of Pangea in…

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Tectonic and environmental perturbations at the Permian-Triassic boundary: insights from the Blue Nile River Basin in central Ethiopia
2021
Maryam Mansouri1, Matthias Hinderer1, Laura Stutenbecker1, Guido Meinhold2, Enkurie L. Dawit3, Jasper Berndt4, Robert Bussert5

The Blue Nile River Basin contains a thick fluvio-lacustrine sediment succession of Permian to Jurassic age. Its evolution is linked to extensional tectonics during break-up of Pangea in the aftermath…

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Tectonic controls on the geomorphic evolution of alluvial fans adjacent to the Kouhbanan fault in Iran
2020
Shirin Salari(1), Reza Derakhshani (1,2), Ahmad Abbasnejad (1), Shahram Shafieibafti (1), Jafar Rahnamarad (3) & Ali Mehrabi (4)

Kouhbanan fault is known as one of the faults that caused many seismic events in Iran. The aim of this study was to investigate the role of tectonics in the…

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Tectonic history of Eoalpine high-pressure rocks – new results and open questions
2022
Ruth Keppler1, Nikolaus Froitzheim1

The Eoalpine high pressure (HP) belt is part of the Austroalpine basement and reached eclogite facies conditions at 100 to 90 Ma during the Cretaceous Alpine orogenic cycle. It extends…

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Tectonic Systems (TSK Open Session)
2021
Froitzheim, Niko (1); Stipp, Michael (2); Ustaszewski, Kamil (3)

We invite contributions from the fields of tectonics, structural geology, and crystalline geology. Regional and process-oriented studies from all kinds of active or fossil tectonic settings are welcome – rifting,…

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Tectono-magmatic evolution of the Lewisian Gneiss Complex, NW Scotland: constraints from in situ U-Pb, Lu-Hf and trace element analysis of TTG-derived zircon.
2023
Annika Dziggel1, Silvia Volante2, Tim E. Johnson3, Lanita Gutieva1, Noreen Evans3, Christopher L. Kirkland3, Vitor Barrote4

The mainland Lewisian Gneiss Complex (LGC) in NW Scotland is dominated by Archean tonalite-trondhjemite-granodiorite (TTG) gneisses. It consists of at least three distinct crustal blocks that have different magmatic and…

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Temperature and frequency-dependent magnetic susceptibility parameters: improving the reliability of archaeointensity in burnt clay ceramics
2021
Arnaldo Hernández Cardona1, Luis M. Alva Valdivia2

Analysis of magnetic mineralogy alteration parameters has been used to understand mineralogy transformation at sample heating. While many studies used the reversibility of low-field magnetic susceptibility vs. temperature κ(T) curves…

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Temperature calibration for high Mg-calcite planktic Foraminifera shells from the Gulf of Aqaba
2022
Noy Levy1, Adi Torfstein2, Ralf Schiebel3, Natalie Chernihovsky2, Klaus Peter Jochum3, Ulrike Weis3, Brigitte Stoll3, Gerald H. Haug4

Hypersaline, oligotrophic seas have been shown to accommodate planktic Foraminifera (PF) with enriched Mg/Ca in their calcareous shells, compared to other marine environments. Although Mg/Ca is a widely used proxy…

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Temporal and spatial distribution of modern ostracod species of Lago Enriquillo (SW Dominican Republic)
2023
Christopher Berndt1, Torsten Haberzettl1, Lilly Biedermann1, Michael Ernst Böttcher2, Berenice Matias Marte de Reyes3, Edwin Garcia Cocco3, Claudia Wrozyna1

Understanding modern species´ ecological preferences and distribution are prerequisites for their application as proxies in paleoenvironmental reconstructions. This knowledge is, however, missing for the majority of tropical species. In order…

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Temporal evolution of 142Nd signatures in SW Greenland – new insights from high precision MC-ICP-MS measurements
2022
Eric Hasenstab1, Jonas Tusch1, J. Elis Hoffmann2, Mario Fischer-Gödde1, Kristoffer Szilas3, Carsten Münker1

The short-lived 146Sm-142Nd decay system is a powerful tool to investigate early geodynamic processes. Here, we introduce a new analytical protocol that allows measuring 142Nd/144Nd isotope compositions at the lowest…

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TephATA: A Tephrostratigraphic Framework for the Atacama Desert and its Application on Regional Sedimentary Archives
2022
Niklas Leicher1, Volker Wennrich1, Bernd Wagner1, Dirk Hoffmeister2, Tanja Kramm2, Vincent Feldmar2, Georg Bareth2

A fundamental aspect to study past Earth surface process variations over time and to set local observations in a regional and global context is their temporal understanding. However, accurate dating…

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Ternary fluid infiltrating with constant composition produces more than twelve reaction sequences controlled by rock composition
2023
Johannes Vrijmoed1, Yury Y. Podladchikov2

In many applications a fluid is injected into rocks for example for CO2 storage, in enhanced geothermal reservoirs, or during oil and gas recovery. The fluid may be out of…

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Ternary porosity systems: New perspectives for Buntsandstein geothermal reservoirs in the Upper Rhine Graben, SW Germany
2021
Ernst Kiefer, Birgit Müller, Frank Schilling

The clastic Lower Triassic Buntsandstein Formation in the Upper Rhine Graben of SW Germany and NE France has been identified as an attractive geothermal reservoir due to its fracture density…

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Testing the Roksolany LPS for astronomical climate forcing via spectral analysis and its correlation with the Middle Danube Basin loess records
2021
Christian Laag1, Dmytro Hlavatskyi2, Vladimir Bakhmutov2

Loess-paleosol sequences (LPSs) are valuable paleoclimate archives capable to record Pleistocene climate changes. Since the past decades, LPSs of the famous Chinese Loess Plateau and the Danube Basins were investigated…

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Testing Triassic S2S models using simple grain-size analysis
2023
James Michael Lovell-Kennedy1, Emma Dobromylskyj1, Pete Burgess1

Outcrop and sub-crop evidence from the Lower Triassic Sherwood Sandstone Group (SSG) suggests a northerly flowing braided river deposited pebble-rich red sandstones through several UK basins. Previous workers assume the…

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TETRAPODS FROM THE GERMAN BUNTSANDSTEIN (TRIASSIC: OLENEKIAN-ANISIAN): EVIDENCE ON TETRAPOD DIVERSIFICATION IN LAURASIA FOLLOWING THE END-PERMIAN EXTINCTION
2023
Rainer R Schoch1, Hans-Dieter Sues1

Following the end-Permian biotic crisis, reptiles rapidly diversified and dispersed across the globe at the beginning of the Triassic Period. Non-mammalian synapsids became much less abundant and had massive losses…

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Tetravalent lead in nature
2022
Laura Christina Folkers1, Rainer Pöttgen2

Of the three industrially important lead oxides PbO, Pb3O4 and PbO2 [1-4] the first two are readily accessible through chemical synthesis, whereas PbO2 can only be reached through high pressure,…

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Tetravalent uranium mobilization by complexation or oxidation and associated U isotope fractionation
2021
Yvonne Roebbert1, Chris Daniel Rosendahl1, Ashley Brown2, Axel Schippers3, Rizlan Bernier-Latmani2, Stefan Weyer1

Uranium (U) isotopes are suggested to monitor the success of (bio)remediation relying on the reduction of soluble and mobile U(VI) to less soluble U(IV)1. However, the subsurface stability of U(IV),…

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Thallium isotope ratios record amphibole-dominated fractionation of Earth’s earliest continental crust
2022
Mathias Schannor1, Heye Freymuth2, Jesse Reimink3, Mark Rehkämper4, Helen Williams2

Earth’s oldest continental crust is found in cratonic nuclei comprised of tonalite-trondhjemite-granodiorites (TTGs). However, the nature of the source materials that formed TTGs, as well as the timing and mechanisms…

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The 2019 Mw6.4 Durres, Albania earthquake – anatomy of a thrust fault from high-resolution aftershock relocations
2023
Bernd Schurr1, Vincent van der Heiden2, Jack Woollam3, Edmond Dushi4, Andreas Rietbrock3

The 2019, Mw 6.4 earthquake struck Albania at the Adriatic port city of Durres, 30 km away from the capital Tirana. It caused significant destruction and more than 50 deaths….

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The 8.2 ka event in the Dead Sea: tracking a high-latitude disturbance in the Mediterranean
2023
Cécile Blanchet1, Assil Nwaigy2, Hana Jurikova3, Rik Tjallingii1, Michael Henehan4, Markus Schwab1, Achim Brauer1

The last deglaciation is an ideal time interval to investigate the effect of climatic and oceanic disturbances occurring at high latitude on the hydrological regimes of the Mediterranean Sea. In…

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The Alkaline Complex of Iivaara (Finland): Shallow Intrusive Setting and Fluid Separation
2022
Fahmi Hakim1, Dennis Obwocha Achoki1, Tobias Fusswinkel1, Sven Sindern1

This study presents the petrogenesis of intrusive rocks of the Iivaara alkaline complex (Finland) and associated enrichment of elements, which are mostly carried by titanite and apatite. Comprehensive mineralogical and…

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The anisotropy of granites – First results of a systematic study of German felsic plutonites
2023
Franz Müller1, Peter Hallas2, Uwe Kroner1

Granites represent suitable crystalline host rocks for nuclear waste repositories because of their mechanical strength and apparent isotropy. However, all granites have a primary structural and petrophysical anisotropy that developed…

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The antiquity of lanthanide tetrad effect and super-chondritic Y/Ho ratio in seawater
2021
David M. Ernst, Michael Bau

Pure and pristine Archaean and Palaeoproterozoic banded iron formations (BIFs) are excellent marine geochemical archives, especially of original rare earths and yttrium (REY) characteristics. As recently demonstrated for the Mt.Ruker…

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The Australian AuScope Virtual Research Environments (AVRE): a Flexible, Service-Oriented Geoscience Platform to Empower Researchers for the Global Challenges of Today and Those of the Future
2021
Jens Klump1, Tim Rawling2, Carsten Friedrich3, Ulrich Engelke3, Vincent Fazio1, Lesley Wyborn4

AuScope is Australia’s National Geoscience Research Infrastructure Program and seeks to provide a world-class research physical and digital infrastructure to help tackle Australia’s key geoscience challenges. Launched in 2007, AuScope’s…

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The Bathymetrists Seamounts – intraplate volcanic province meets Riedel Shears (eastern Equatorial Atlantic Segment)
2023
Elisabeth Seidel1, Christian Hübscher1, Froukje Marieke van der Zwan2, Nico Augustin3, Morgane Le Saout3

The Bathymetrists Seamounts (BSM) form a 900 km long and 200 km wide volcanic chain of about 40 volcanic edifices within the eastern Equatorial Segment of the Atlantic. They are…

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The behaviour of Sn and W at the magmatic-hydrothermal transition: Insights from natural and synthetic fluid inclusions
2022
Julie Anne-Sophie Michaud1, François Holtz1, Ingo Horn1

Tin (Sn) and tungsten (W) have been established as strategic metals, whose resources are mainly related to highly evolved, volatile-rich granitic systems and related hydrothermal fluids. Their transport and enrichment…

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The behaviour of tin in skarns of the Variscan Erzgebirge – the Geyer skarn system as a case study
2022
Nicolas Meyer1, Jens Gutzmer2, Gregor Markl1, Mathias Burisch2

This study focuses on the mineralogy and petrography of pro- and retrograde skarn stages at the Geyer Sn system in the Erzgebirge, Germany. These data are used to constrain how…

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The BGR GeoPortal: Enabling Access and Integration of Geoscientific Data
2023
Christoph Schettler1, Gerd Arns-Krogmann1

The BGR GeoPortal is a comprehensive platform that facilitates seamless access to geoscientific data, fostering data exploration and integration. In this abstract, we highlight several key features of the GeoPortal…

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The Cadomian Orogeny in the northern Bohemian Massif – geochronology, basin development, crustal growth, and geotectonic setting
2023
Ulf Linnemann1, Mandy Zieger-Hofmann1, Johannes Zieger1, Jessica Gärtner1, Andreas Gärtner1, Linda Marko2, Richard Albert Roper2, Axel Gerdes2

During Ediacaran to earliest Cambrian times, the Cadomian Orogen formed a system of magmatic arcs and marginal basins at the northern periphery of the Gondwana supercontinent. The orogenic belt was…

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The carbonatite melt – granite wall-rock interaction: A case study on the Bulhoek carbonatites, South Africa
2023
Ole L. F. Sauter1, Johannes R. Giebel2, Benjamin F. Walter3

The study aims to provide valuable insights into the dynamics of the interaction between carbonate melts and silicate wall-rocks during ascent and emplacement of carbonatitic intrusions. A specific focus is…

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The carbonatites of South Morocco: Unusual occurrences and associated REE-Nb-Ta-Fe mineralization
2021
Rachid Benaouda1, Dennis Kraemer1, Maria Sitnikova2, Michael Bau1

The Oulad Dlim massif in the southernmost part of Morocco hosts several carbonatite bodies of different ages. The older carbonatite (1.85 Ga) occurs in the eastern Oulad Dlim massif in…

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The Carnian Pluvial Episode in Tethys Realm: Insights from multiproxy paleoclimate data
2023
Mina Mazaheri-Johari1, Jacopo Dal Corso2, Guido Roghi3, Evelyn Kustatscher4, Tamsin Mather5, Piero Gianolla1

The Carnian Pluvial Episode (CPE, 234–232 Ma) was a major climate change event in the Triassic. The CPE brought substantial changes in ecological community structure and the appearance of many…

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The cause for HFSE enrichment in foidolite-carbonatite complexes
2021
Dominik Gudelius1, Michael W. Marks2, Jochen Kolb1, Gregor Markl2, Benjamin F. Walter1

The Gardiner (E-Greenland) and Kovdor (Russia) alkaline complexes display a similar succession of rock types comprising dunites-pyroxenites, ijolite series rocks, melilitolites and carbonatites. Although similar melanephelinitic parental magmas are suggested…

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The changing role of Petroleum Geoscietists and Engineers in the Energy Transition
2020
Eilard Hoogerduijn Strating

The transition towards a zero carbon footprint energy system will greatly impact the energy mix we will use. Globally, a significant increase is expected in the contribution of electrical power…

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The Chatham Islands: A window into the geochemical evolution of Zealandia
2023
Stephan Homrighausen1, Kaj Hoernle2, Folkmar Hauff1, Johanna Schenk1, Hamish Campbell3

The temporal geochemical record of Zealandian alkaline intraplate volcanism reveals a significant geochemical evolution from Cretaceous HIMU (high time-integrated μ = 238U/204Pb Mantle) end member to Cenozoic HIMU-like volcanism with…

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The chemical composition of basaltic and anorthositic lunar soil samples determined by ICP-MS
2022
Frank Wombacher1, Wafa Abouchami2, Stephen Galer3, Mike Jansen1, Carsten Münker1, Josua Pakulla1

Using quadrupole ICP-MS, we determined the chemical composition of five basaltic Apollo 12 and six anorthositic Apollo 16 soil samples, the cataclastic lunar anorthosite 60015 and the reference samples BHVO-2…

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The Chico Sill Complex, Northeast New Mexico: A case for late-stage phonolite-carbonatite melt immiscibility
2021
Lee S. Potter

The Chico Sill Complex (Northeast New Mexico) is the result of magmatic episodes from ~37 Ma to 20 Ma and produced a diverse and compositionally discontinuous suite of mostly intrusive…

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The closure of the Neotethys in two episodes: first. as a result of Jurassic to Early Cretaceous obduction and second, as a result of Early Palaeocene collision; a comparison of surface geology and tomography (Central Internal Hellenides, Greece)
Rudolph Scherreiks (1) & Camille BouDagher-Fadel (2)

This contribution concerns Neotethys palaeogeography in the Central Internal Hellenides. Neotethys oceanic crust is represented in the Vardar zone of the Hellenides by the ophiolites of the Almopias sub-zone. Contrary…

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The compilation of the new Alpine gravity maps – from the work of the AlpArray Gravity Research Group
2021
Pavol Zahorec1, Juraj Papco2, Roman Pasteka3, Miroslav Bielik3, Sylvain Bonvalot4, Carla Braitenberg5, Jörg Ebbing6, Gerald Gabriel7,8, Andrej Gosar9, Adam Grand3, Hans-Jürgen Götze6, György Hetényi10, Nils Holzrichter6, Edi Kissling11, Urs Marti12, Bruno Meurers13, Jan Mrlina14, Ema Nogová3, Alberto Pastorutti5, Corinne Salaun15, Matteo Scarponi10, Josef Sebera6, Lucia Seoane4, Peter Skiba7, Eszter Szűcs16, Matej Varga17

The international networking initiative AlpArray Gravity Research Group (AAGRG) focused on the compiling homogeneous surface-based gravity datasets across the Alps and adjacent areas, on creating digital data sets for Bouguer…

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The complimentary records of ancient differentiation events preserved by Archean-aged crust and modern ocean island basalts
2023
Bradley James Peters1, Arathy Ravindran2, Marc Halfar1, Andrea Mundl-Petermeier3, Marie-Theres Herret3, Courtney Jean Rundhaug4, Valerie A. Finlayson5

Modern terrestrial mantle-derived rocks display a rich diversity of isotopic compositions that have been key to understanding the assembly of the silicate Earth over the last 2-3 billion years. Parallel…

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The connection between perovskite, magnetite, titanite and schorlomitic garnet in nephelinitic rocks from Burko volcano, Tanzania
2023
Fabian H. Schmitt1, Michelle Siegel1, Mika Henzler1, Michael Marks1, Gregor Markl1

Burko is a nephelinitic volcano in the Gregory Rift of the East African Rift System (EARS), situated in northern Tanzania. The rocks are olivine-free and phonolitic nephelinites, deposited as tuffs,…

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The continental Hessenreuth Formation: syntectonic deposition during Late Cretaceous inversion (Danubian Cretaceous Group, Bavaria, Germany)
2023
Birgit Niebuhr1, Thomas Pürner2, Annette E. Götz3, Frank Holzförster4, Markus Wilmsen1

The strata of the Danubian Cretaceous Group reflect dynamic depositional conditions in a peri-continental setting at the northern margin of the Alpine Tethys. From the Middle Turonian onwards, tectonic inversion…

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The controls on sedimentary pyrite formation in Southern Ocean deep-sea sediments
2022
Monika Mikler1, Michael Weber1, Sven Oliver Franz1, Christian März1

The formation of pyrite in deep-marine sediments is typically limited by organic carbon or/and reactive iron availability. The Southern Ocean generally exhibits an iron deficiency, limiting bioproductivity and thus the…

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The core section of HG 7025 Struppen-Siedlung: a new standard section for the facies transition zone of the Saxonian Cretaceous Basin (Lower Cenomanian–Upper Turonian, eastern Germany)
2023
Melanie Melchisedech1, Markus Wilmsen1

The sequence stratigraphic and facies analyses of the Lower Cenomanian to Upper Turonian core section HG 7025 provide a new standard section of the regional facies development and stratigraphic architecture…

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The correlation of radon in different types of buildings and radon prone areas of Cluj-Napoca, Romania
2021
István Mihály Pap

It is a well-known fact that the city of Cluj-Napoca in Romania has a diverse geological stratification, based on the geological data and studies performed on the soil by geologists….

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The Cretaceous Period in 2023 – progress and challenges
2023
Andrew Scott Gale1

Over the past 30 years, our knowledge of Cretaceous stratigraphy and timescale has expanded exponentially. This has been based partly on the greater refinement of biostratigraphy, including the utilisation of…

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The crystallization of ikaite (CaCO3 x 6H2O) in presence of mineral surfaces: Effects on formation and implications for nucleation pathways
2022
Samuel B. Strohm1, Sebastian E. Inckemann1, Kun Gao1, Wolfgang W. Schmahl1, Guntram Jordan1

Ikaite is an essential calcium carbonate mineral especially in cold regions of Earth. However, the conditions leading to the formation of ikaite are poorly constrained. In a previous study (Chaka…

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The data publication chain of the EPOS Multi-scale Laboratories
2021
Geertje ter Maat, the MSL Team

EPOS (the European Plate Observing System) is a pan-European e-infrastructure framework with the goal of improving and facilitating the access, use, and re-use of Solid Earth science data. The EPOS…

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The deeper subsurface of Lower Saxony – Developing a generalised 3D geological model from heterogeneous and inconsistent data
2021
Sabine Sattler, Marcus Helms, Cornelia Wangenheim, Jennifer Ziesch

The creation and application of 3D geological models has become increasingly important within the geological surveys in recent years. In the joint project TUNB (Tieferer Untergrund Norddeutsches Becken – Deeper…

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The DeepStor-1 exploration well
2023
Jens Carsten Grimmer1, Florian Bauer1, Thomas Kohl1, Judith Bremer1, Eva Schill1

DeepStor-1 is the exploration well to the Helmholtz research infrastructure “DeepStor”. DeepStor focuses on the investigation of high-temperature heat storage marginal to the former oil-field “Leopoldshafen“. It is located about…

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The development of a microwave-assisted laboratory hard rock cutting machine
2023
Sair Kahraman1, Ramazan Comakli2, Masoud Rostami1

Mechanical excavators have been widely used for the excavation of rocks in mining and civil engineering projects. The excavation of hard rocks by mechanical machines is difficult due to low…

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The Distribution of Geogenic and Anthropogenic Rare Earth Elements and Yttrium in Major European Rivers: The PANORAMA River Monitoring
2022
Addis Kokeb Alemu1, Keran Zhang2, Franziska Klimpel2, Anna-Lena Zocher2, Michael Bau2

Rare earth elements and yttrium (REY) are vital components in numerous high-technology products and processes. Consequently, they are continuously released into the environment from various point and diffuse sources and…

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The Drosendorf Unit in the Austrian part of the Bohemian Massif: Does it host the oldest rock fragments of Variscan Europe?
2021
Martin Lindner1, Etienne Skrzypek2, Christoph Hauzenberger2, Dominik Hauser3, Sabina Steiner3, Fritz Finger2,3

Remnants of pre-Cadomian rocks are scarce in the Variscides including the Bohemian Massif. In the latter, numerous Variscan metamorphosed Mesoproterozoic and Early Neoproterozoic sediments and granitoids are contained in the…

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The dual-clumped isotope thermometer as a tool to identify and correct for isotopic disequilibrium in the clumped isotope composition of biogenic carbonate
2022
Amelia Davies1, Uwe Brand2, Jacek Raddatz1, Eberhard Gischler1, Gregory Price3, Weifu Guo4, Miguel Bernecker1, Mattia Tagliavento1, Jens Fiebig1

The clumped isotope composition (∆47) of marine biogenic carbonates is an increasingly applied proxy for temperature reconstruction. The clumped isotope measurement is particularly valuable as ∆47 is independent of the…

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The Early Bird in STEM Education – The PepperMINT Project
2021
Lisa Michael, Tobias Rudolph

In order to cope with the wide-ranging field of geoscientific and geotechnical research it is essential to invest in the education of the next generation’s scientists and engineers. Many German…

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The Early Permian Bromacker paleoenvironment: Preliminary results from scientific drilling in the Tambach Basin (Thuringia, Germany)
2023
Jakob Stubenrauch1, Thomas Voigt1, Rebecca Lellau1, Niklas Störer1, Anna Pint1, Christoph Heubeck1, Peter Frenzel1

The Bromacker Project (https://bromacker.de/) investigates the paleoecology of the Early Permian vertebrate “Ursaurier” lagerstätte of the same name in the red beds of the Tambach Formation, Thuringia. Its geologic-paleontologic subproject…

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The Earth Science Box Modeling Toolkit (ESBMTK)
2023
Ulrich Wortmann1

Box modeling is a versatile tool to explore earth systems processes, ranging from transient changes in the marine carbonate system to the long-term evolution of biogeochemical cycles. The Earth Science…

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The educational role of historical mining sights for sustainable use of geological ressources – examples from the UNESCO Global Geopark Bergstraße-Odenwald
2021
Jochen Babist, Jutta Weber

The educational role of historical mining sights for sustainable use of geological ressources – examples from the UNESCO Global Geopark Bergstraße-Odenwald In a Geopark, historical mining sights can act as…

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The effect of aqueous fluid on viscous relaxation of garnet and modification of inclusion pressures after entrapment
2023
Xin Zhong1, David Wallis2, Phillip Kingsbery1, Timm John1

The elastic interaction between an inclusion and its host is often employed to study the entrapment conditions during metamorphism on the assumption that the host is not affected by creep….

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The effect of Co substitution and sample preparation on the Raman spectra of pyrite
2021
Khulan Berkh, Dieter Rammlmair

Effect of Co substitution in pyrite was investigated using a Raman microprobe. Textural appearance of Co-bearing pyrite was visualized by mapping method. The revealed Raman map tightly correlates with a…

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The Effect of Mineral Dissolution-Precipitation Reactions on the Diffusivity of Porous Media: Innovative Experiments & Reactive Transport Modelling
2022
Mara Iris Lönartz1, Jenna Poonoosamy1, Yuankai Yang1, Guido Deissmann1, Dirk Bosbach1

A reliable assessment of the evolution of geological repositories for radioactive wastes requires a profound understanding of coupled hydrogeochemical processes across various temporal and spatial scales. At barrier interfaces, chemical…

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The effect of water on trace element diffusivities in silicic melts: A case study on Li, Rb, and Cs
2022
Juliana Troch1, Chris Huber2, Nico Kueter3, Marcel Guillong3, Peter Ulmer3, Michael R Ackerson1, Olivier Bachmann3

Trace element diffusion is a powerful tracer for the kinetics of magmatic processes such as recharge and fluid exsolution. However, the dependence of diffusivities on melt water contents is poorly…

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The elastic tensor of natural topaz: the effect of OH/F ratio
2022
Nicola Precisvalle1, Sergio Speziale2, Annalisa Martucci3, 1 Bonadiman3

Topaz Al2SiO4(OHx,F1-x)2 is a crustal mineral, typical of magmatic and hydrothermal environments, but also present in metamorphic orogenic settings. It is characterized by high density and mechanical properties that make…

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The Ellesmerian orogeny of Laurussia – A far-field effect of the late Devonian collision of Gondwana with North America
2023
Uwe Kroner1, Tobias Stephan2, Thorsten Nagel1

Convergent tectonics of the Ellesmerian orogeny affected Arctic Canada and Svalbard in late Devonian – early Carboniferous times. The coeval ultra-high pressure metamorphism in NE-Greenland, the formation of the Maritimes…

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The Eocene-Oligocene Transition in intra-continental basins: A perspective from the Upper Rhine Graben
2021
Emile Simon1, Hendrik Vogel2, Mathieu Schuster1

The Eocene-Oligocene Transition (EOT) marks a turning point from the Eocene greenhouse paleoclimate to near-modern icehouse conditions. This ~790 kyr long interval is associated with major shifts in geochemical and…

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The eruption interface between carbonatitic dykes and diatremes – the Gross Brukkaros volcanic field Namibia
2023
Benjamin Florian Walter1, R. Johannes Giebel2, Pete Siegfried3, Dominik Gudelius1, Jochen Kolb1

Carbonatites are relatively rare rocks with only about 600 occurrences world-wide. While dominated by intrusive carbonatites the rock record only shows about 50 occurrences of extrusive carbonatites. The geochemical link…

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The EU Critical Raw Materials Act – the vital role of research and knowledge in policy making
2023
Constanze Veeh1

In March 2023, the EU Commission proposed a Critical Raw Materials Act. The Act puts a legislative framework in place that addresses security of raw materials supply and provides stability…

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The European continental crust through detrital zircons from modern rivers: biasing effects in the detrital zircon record
2021
Paula Castillo1, Heinrich Bahlburg1, Rodrigo Fernández2, Mark Fanning3, Jasper Berndt4

We present U-Pb, Lu-Hf, and O isotopic data, as well as size-shape data for approximately 3700 detrital zircons from 15 European rivers. In combination with geomorphological information for each river…

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The EXCITE-network: providing access to leading-edge electron and X-ray microscopy facilities for geo-materials research
2021
Oliver Plümper1, Veerle Cnudde1,2, Geertje ter Maat1, Sylvia Walter1, Richard Wessels1, the EXCITE network1

Understanding earth materials is critical to creating a sustainable, carbon-neutral society due to their involvement in many vital processes. Earth materials control the feasibility of subsurface energy storage, geothermal energy…

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The export of barium into the marine benthic realm assessed through Ba/Ca of benthic foraminifera – approaching a novel calibration
2022
Jassin Petersen1, Nicolai Schleinkofer2, Jacek Raddatz2, Andre Bahr3, Patrick Grunert1

Global warming and changes in precipitation patterns are of increasing concern for populations in the Mediterranean region. Exploiting regional paleoenvironmental archives helps to understand how climatic parameters changed regionally in…

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The family of battery metals found in European seabed mineral deposits: The MINDeSEA perspective
2021
Javier Gonzalez1, Teresa Medialdea1, Henrik Schiellerup2, Irene Zananiri3, Pedro Ferreira4, Luis Somoza1, Xavier Monteys5, Trevor Alcorn5, Egidio Marino1, Ana Lobato1, Thomas Kuhn6, Johan Nyberg7, Vitor Magalhaes8, Rosario Lunar9, Boris Malyuk10, James Hein11, Georgy Cherkashov12

Covering 15,000,000 km2, the pan-European seas represent a promising new frontier for the exploration of mineral resources. The GeoERA-MINDeSEA consortium, a cooperative network of 12 Geological Surveys and Marine Institutes,…

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The fate of crustal xenoliths in carbonatite dykes of the Gross Brukkaros, Namibia
2021
Rebecca Ruwe1, R. Johannes Giebel2,3, Benjamin F. Walter1

The Gross Brukkaros (Namibia) reflects a broad dome structure showing a crater-shaped depression with numerous peripheral beforsitic carbonatite dykes. These dykes frequently contain an extreme load of basement (Nama-group) xenoliths…

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The fate of hydrogen: underground storage, nuclear waste repositories and natural hydrogen fluxes.
2021
Ostertag-Henning, Christian (1); Schäfer, Thorsten (2)

Over the past years the interest in geochemical reactions forming or oxidizing molecular hydrogen has soared: In addition to the long-standing issue of possible hydrogen production in high-level nuclear waste…

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The Future of Geodata Management – the UK experiences
2021
Karen Hanghøj, Katherine Royse

The fourth industrial revolution is changing how geoscience is carried out, how information is shared and how society and people engage with the world around them and with scientific discovery…

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The geochemical evolution of the Late Cretaceous intraplate volcanism on the Chatham Islands (NZ)
2023
Johanna Schenk1, Stephan Homrighausen1, Hamish Campbell2, Kaj Hoernle3

The Chatham Islands, situated on the eastern Chatham Rise ~800 km east of New Zealand, comprise two main (Chatham and Pitt) and many smaller islands. Collision of the oceanic Hikurangi…

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The Geological Data Act – From the notification of geological investigations to the transmission and provision of geological data
2023
Birgit Futterer1, Hans-Jürgen Brauner2

The Geological Data Act (GeolDG) came into force on June 30, 2020. It has replaced the Mineral Law (LagerstG) and has lead to a comprehensive new legal regulation in the…

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The geological heritage as a tool for education and action for the climate change: Understanding the consequences by studying the Petrified Forest of Lesvos
2021
Konstantina Bentana, Nikolaos Zouros, Ilias Valiakos

The geological heritage provides a particularly effective pedagogical tool to engage school students with climate change through on site exploration in UNESCO Global Geoparks. Geological data provides invaluable opportunities to…

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The geology of the South-Eastern Harz Foreland visualized in a 3D-Model
2023
Melanie Siegburg1, Alexander Malz1, Tilman J. Jeske1, Christian-Olaf Müller1, Ivo Rappsilber1

The Central European Basin is an intracontinental basin filled with Permian to Quaternary sediments. The southeastern basin rim, an area roughly covering the southern part of Saxony-Anhalt and eastern Thuringia…

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The Geometadatenplattform METAVER and its application in the state Brandenburg/Germany
2023
Beate Lukas1

METAVER (https://metaver.de/) is the central platform for recording and publishing (INSPIRE) geospatial metadata from various federal states of Germany. It offers various interfaces for recording and further processing metadata. An…

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The German Site Selection Procedure – Results presented in the Interim Report by the Bundesgesellschaft für Endlagerung mbH
2021
Nadine Schöner, Julia Rienäcker-Burschil, Matthias Emanuel Bauer

In 2013, the German Site Selection Act (StandAG) restarted the search for a site with the best possible safety for a geological repository for the high-level radioactive waste produced in…

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The Harz Mountains (Germany) – Cadomia meets Avalonia and Baltica: U-Pb ages of detrital and magmatic zircon as a key for the decoding of Pangea´s central suture
2023
Ulf Linnemann1, Maren Zweig2, Mandy Zieger-Hofmann1, Tim Vietor3, Johannes Zieger1, Jessica Gärtner1, Andreas Gärtner1, Katja Mende1, Rita Krause1, Friedhart Knolle4

The nature of Pangea´s internal suture in the Central European Variscides is evaluated on the example of the Harz Mountains (Germany). U-Pb ages of detrital (n = 2273) and magmatic…

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The Hidden Drought: A Hydrogeochemical Perspective on the Challenges of Sustainable Groundwater Management in the Vietnamese Mekong Delta
2023
Jonas Bauer1, Hoan Viet Tran1, Van Cam Pham1, Felix Dörr1, Stefan Norra2

With escalating global freshwater scarcity, the Mekong Delta basin has emerged as one of the most socially and ecologically vulnerable regions, experiencing severe freshwater stress and storage loss. This vulnerability…

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The highly saline lithium-rich brines in the Muschelkalk aquifer of the Molasse basin in SW-Germany: a future geothermal lithium play?
2023
Jens Carsten Grimmer1, Ingrid Stober2, Michael Kraml3

Highly saline lithium-rich hydrothermal fluids occur in the deep calcareous Muschelkalk aquifer of the northern Alpine foreland basin. We have combined geologic, hydraulic, hydrochemical, and stress field data of the…

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The ICDP Oman Drilling Project – Implications from drill core GT1 on magmatic processes beneath fast-spreading mid-ocean ridges
2021
Dominik Mock1,2, David Axford Neave3, Samuel Müller4, Dieter Garbe-Schönberg4, Benoit Ildefonse2, Jürgen Koepke1, Oman Drilling Project Science Team5

A key aim of the ICDP Oman Drilling Project is to constrain magmatic processes beneath fast-spreading mid-ocean ridges. Several drill cores from the Samail ophiolite (Oman), which is regarded as…

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The image of geoscience among student teachers of geography
2021
Simon Schneider1, Richard Dahlbock2

Within the framework of a study focusing on teacher training in geography at the University of Potsdam, the range of perspectives on the topics of physical geography was investigated. The…

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The impact of fluid and mineral composition on experimental carbonate silicification
2022
Gina Rüdiger1, Moritz Liesegang1

The pseudomorphic replacement of carbonate minerals by silica is an omnipresent diagenetic process. However, the parameters that influence the silicification process are incompletely understood and experimental studies are sparse. Here,…

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The impact of increasing temperature on microbial lipid distributions in the Nankai Trough subduction zone, IODP Exp. 370
2021
Florence Schubotz1, Inga Hölscher1, Julius Sebastian Lipp1, Yuki Morono2, Fumio Inagaki2,3, Verena B. Heuer1, Kai-Uwe Hinrichs1

Site C0023 in the Nankai Through subduction zone was established in 2016 to investigate the temperature limits of deep subsurface life. Here, we report on the detection of intact polar…

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The impact of variable Fe concentrations on Fe-binding ligands, dissolved organics and microbial communities in hydrothermal plumes – an experimental study
2021
Christian Tobias Hansen1,2, Charlotte Kleint2,3, Stefanie Böhnke4, Lukas Klose3,2, Nicole Adam4,5, Katharina Sass5, Mirjam Perner4,5, Thorsten Dittmar1,2, Andrea Koschinsky3,2

Iron (Fe) plays an important role in aquatic environments as an essential, often biolimiting micronutrient but at very high concentrations can potentially be toxic. Consequently, microbes have evolved capabilities to…

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The impacts and legacy of the 2022 eruption of Hunga Volcano, Kingdom of Tonga
2023
Isobel Alice Yeo1, Michael Andrew Clare1, Sally Watson2, Richard Wysoczanski2, Sarah Seabrook2, Kevin Mackay2, James Hunt1, Emily Lane2, Peter Talling3, Edward Pope3, Shane Cronin4, Marta Ribó Gene5, Taaniela Kula6, David Tappin7, Stuart Henrys8, Cornel de Ronde8, Morelia Urlaub9, Steffan Kutterolf9, Miros Charidemou1, Mike Edwards1, Rebecca Garnett1, Cian McGuire1, Mike Williams2

The climax of the 2021-2022 eruption of Hunga Volcano (also called Hunga Tonga – Hunga Ha’apai) on the 15th January 2022 was the most explosive volcanic eruption this century. The…

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The importance of mineralogy for a circular economy of the construction sector – examples from the ReMin funding initiative
2022
Marie C. Gentzmann1, Sören Henning1, Michael Szurlies1, Thilo Brämer2, Andre Bertram3

One of the challenges on the way towards a more sustainable future is the transition from linear to circular economy (CE). The need to conserve and substitute primary raw materials…

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The Importance of Rift Inheritance in Understanding the Early Collisional Evolution of the Western Alps
2023
Gianreto Manatschal1, Pauline Chenin1, Gianluca Frasca2

We reassess the architecture and tectonic history of the Western Alps based on recent knowledge developed at rifted margins. First, we replace the main Alpine units of our study area…

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The imprint of astronomical climate forcing: geochronometer and paleoclimate archive
2021
Zeeden, Christian (1); Kaboth-Bahr, Stefanie (2); Drury, Anna-Joy (3); Fang, Qiang (4); Sardar Abadi, Mehrdad (1)

The pacing of the global climate system by variations in orbital parameters is clearly demonstrated in the timing and specific patterns of various geoarchives, including sapropels, glacial/interglacial cycles and many…

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The influence of burial and temperature history on hydraulic and hydro-mechanical properties of a Lower Jurassic (Pliensbachian) clay rock formation – First results of the MATURITY project
2023
Lisa Winhausen1, Florian Amann2, Raphael Burchartz1, Jochen Erbacher3, Garri Gaus4, Sebastian Grohmann4, Mohammadreza Jalali1, Ralf Littke4, Ivan Luna1

The characterization of potential host rocks for the final disposal of high-level radioactive waste is of great importance in the site selection procedure. For clay-rich host rocks, hydraulic and geomechanical…

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The influence of crustal contamination on REE-enrichment in carbonatites of the Kalkfeld group (Namibia)
2023
Andreja Ladisic1, Michael Marks1, Benjamin Walter2, Johannes Giebel3, Gregor Markl1

Carbonatites are mantle-derived igneous rocks which may comprise economically important mineralizations of REE and HFSE. Their emplacement into the crust is usually accompanied by fenitization, alkali metasomatism of country rocks…

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The influence of phospholipids on the structure and composition of ferrihydrite colloids
2022
Zhengzheng Chen1, Jeffrey Paulo H. Perez2, Roberts Blukis2, Glen J. Smales3, Brian R. Pauw3, Jessica A. Stammeier2, Jörg Radnik3, Liane G. Benning1

Organophosphates (OP) are important nutrient components in soils and they readily interact with abundant iron phases. Ferrihydrite (FHY), a ubiquitous iron phase in soils, plays a major role in iron-mediated…

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The influence of sea-level changes on Eocene coastal wetlands during greenhouse conditions at the southern edge of the proto-North Sea in Northern Germany
2021
Olaf Klaus Lenz, Volker Wilde, Walter Riegel

The sedimentary succession of the Helmstedt Lignite Mining District at Schöningen in northern Germany includes the upper Paleocene to lower Eocene Schöningen Formation and the middle Eocene Helmstedt Formation. It…

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The INSIDE project: Investigating the impact of geothermal exploitation in the Munich area – The induced seismicity perspective.
2021
Jérôme Azzola1, Emmanuel Gaucher1, Felix Bögelspacher2, Ralph Baasch3, Bernhard Betzl4, Ilka Schultz5

Scientific research is carried out in the framework of the INSIDE project (supported by the German Federal Ministry for Economic Affairs and Energy, BMWi) to assess the impact of deep…

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The internal structure of the Asse salt diapir – new insights from 3D geological modelling
2023
York Fischer1, Evelyn Suchi1

As part of the retrieval planning of radioactive waste from the ASSE II salt mine, located in the western part of the Asse-Heesberg salt structure south-east of the city of…

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The Kieshöhe carbonatites in SW-Namibia – the role of silicatic xenoliths for REE exploration
2021
Benjamin Florian Walter1, R. Johannes Giebel2, Alan Marlow3, Michael Marks4, Gregor Markl4, Jochen Kolb1

Exploration of carbonatite-associated REE-deposits is challenging due to heterogeneous ore distribution and variable and often complex ore mineralogy. The Kieshöhe carbonatite in SW Namibia represents a subvolcanic occurrence hosting dolomite,…

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The Kohlenkalk of the Rhenohercynian Basin: a hydrothermal reservoir for North Rhine-Westphalia and North-West Europe
2020
Martin Arndt, Tobias Fritschle, Martin Salamon & Anna Thiel

The transnational EU-Interreg-funded “Roll-out of Deep Geothermal Energy in North-West Europe” (DGE-ROLLOUT) project aims to reduce CO2 emissions following a multi-disciplinary geoscientific approach, and promotes the use of hydrothermal energy…

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The Kuboos-Bremen Line in Namibia and South Africa: new insights about emplacement and composition
2023
Jorge Correia Leite Arthuzzi1, Benjamin F. Walter1, Robert Johannes Giebel2, Lorenz Kemmler3, Jochen Kolb1

The Kuboos-Bremen Line (KBL) is an alignment of intrusions that extent for 250 km in South Africa and Namibia. Its deepest exposed parts occur near Alexander Bay (RSA) and it…

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The Late Paleogene remnant sea to foreland basin sedimentation along the western margin of the Himalayas, an insight into early Himalayan evolution
2022
Nowrad Ali1, Muhammad Hanif2

The well preserved late Paleogene sedimentary record of the north Sulaiman Range offers a unique record of the early Himalayan evolution along its western margin. This study is focused on…

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The Late Paleozoic igneous suite between the Saxon granulite massif and the Altmark, central Germany: Petrogenetic and mineralogical constraints on the post-orogenic magma evolution
2023
Alexander Repstock1, Manuela Zeug2, Elżbieta Słodczyk3, Hripsime Gevorgyan4, Michael Buchwitz5

The Late Paleozoic continental rift in the area of central Europe set the stage for intense magmatic activity, apparent in plutonic complexes (e.g. Brocken, Pretzsch-Prettin), large subvolcanic bodies (e.g. Halle…

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The lithium isotopic composition of Late Cretaceous seawater: Implications for a correlation between weathering, carbon cycle and climate
2022
Sandra J. Huber1, Vanessa Schlidt1, Jorit F. Kniest1, Linus Lenk2, H.-Michael Seitz1, Jacek Raddatz1, Horst R. Marschall1, Silke Voigt1

The cause and feedback mechanisms of Late Cretaceous climate cooling are not well understood to date. To evaluate the role of silicate weathering as a thermostat and sink for atmospheric…

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The LOOP Project: towards multi-scale digital twins of geology?
2023
Laurent Ailleres1, Lachlan Grose1, Mark Jessell2, Fernanda Alvarado-Neves1, Angela Rodrigues1, Rabii Chaarani1, Vitaly Ogarko2

To support a socially-licensed greener future, one of the biggest challenges of the next decade is to improve our ability to predict subsurface geology. For example, the mine of the…

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The Lower Keuper (Erfurt Formation, Middle Triassic) fossillagerstätten from SW Germany: flourishing tetrapod ecosystems
2023
Eudald Mujal1, Raphael Moreno2, Rainer R. Schoch2

Even if the knowledge of Triassic tetrapod communities and their role in terrestrial ecosystems has increased in the recent decades, the paucity of fossil sites from this time interval has…

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The Malolotsha Klippe: Large-scale subhorizontal tectonics along the southern margin of the Archean Barberton Greenstone Belt, Eswatini
2022
Christoph Heubeck1, Benjamin Heredia2, Tonny Thomsen2, Armin Zeh3, Philipp Balling1

Whether Archean tectonics were horizontally or vertically dominated is debated because arguments bear on the kinematics and thermal state of the Archean mantle and constrain the formation of the earliest…

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The mandibular morphology of the Middle Pleistocene brown bear mandible from Postes cave (Spain) within the European Ursus arctos (LINNAEUS, 1758) morphological variation
2020
Mónica Villalba de Alvarado (1,2), Asier Gómez Olivencia (3,4,1), Hipólito Collado Giraldo (5), Juan Luis Arsuaga Ferreras (1,6) & Anneke van Heteren (7,8,9);

Brown bears (Ursus arctos) originated in Asia and diverged from the spelaeoid line in the late early Pleistocene, but they do not appear in the European fossil record until half…

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The marine sediment archives of Himalayan erosion
2023
Yani Najman1, Mike Blum2, Chris Mark3, Guangsheng Zhuang4

Marine sediment archives provide invaluable records of continental erosion and dynamics, important for understanding both crustal deformation and climatic processes. Yet these archives are influenced by autogenic and allogenic processes….

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The Marmorera-Cotschen hydrothermal system (Platta nappe, Switzerland): A Jurassic analogue to present-day oceanic ultramafic-hosted mineralized systems
2021
Rémi Coltat1, Philippe Boulvais2, Yannick Branquet2,3, Ewan Pelleter4, Gianreto Manatschal5

Mid-Oceanic ridges are places of intense fluid-rock interactions. At (ultra)slow-spreading ridges where mantle rocks are exhumed along detachment faults, this notably leads to the formation of mineralized systems. They commonly…

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The Martian subsurface structure at the InSight landing site revealed by marsquakes
2022
Sebastian Carrasco1, Brigitte Knapmeyer-Endrun1, Ludovic Margerin2, Cédric Schmelzbach3, Keisuke Onodera4, Lu Pan5, Philippe Lognonné6, Sabrina Menina6, Domenico Giardini3, Eléonore Stutzmann7, John Clinton8, Simon Stähler3, Martin Schimmel9, Matthew Golombek10, Manuel Hobiger11, Miroslav Hallo8, Sharon Kedar10, W. Bruce Banerdt10

We analyzed the seismological data collected by the InSight mission, which landed on Mars in November 2018, in order to reveal the first tens of meters of the subsurface structure…

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The micropaleontological fingerprint on contourites and turbidites
2021
Johanna Schmidt1, Anna Saupe1, Jassin Petersen1, André Bahr2, Patrick Grunert1

Bottom current-induced sediments such as contourites contain fundamental information for reconstructions of water mass properties and ocean circulation. The distinction between contourites and other deposits on continental slopes is particularly…

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The mirror of a Late Ordovician post-glacial flooding – a conglomerate beachrock from the Tarim Basin
2023
Qijian Li1, Lin Na1, Shenyang Yu2, Oliver Lehnert3, Axel Munnecke4, Yue Li1

Understanding ancient climate changes is hampered by the inability to disentangle trends in continental ice volume from records of relative sea-level change. As a unique coastal deposit in tropical and…

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The most ancient platanistid: An insight into the early evolutionary history of the dolphin group
2020
Catalina Sanchez-Posada (1,2), Michael Krings (2,1) & Gertrud Rössner (2,1)

The fossil record of Platanistidae (Indian river dolphins and extinct partially marine relatives, Early Miocene to today) is suggestive of an early radiation of the group reflected in the diversification…

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The Museum Mineralogia München (SNSB), a geoscientific place of education
2021
Melanie Kaliwoda, Malte Junge, Felix Hentschel, Wolfgang W. Schmahl

The Museum Mineralogia München represents the museum window of the Mineralogical State Collection Munich (SNSB). It shows constantly reprocessed geoscientific topics through diverse special and permanent exhibitions. In addition, there…

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The Muskau Arch – a geomorphological and geophysical approach on glacial tectonics
2023
Sebastian Donke1

The Muskau Arch (MA) is located in the border area of the federal states of Brandenburg and Saxony and Poland. The Muskau Arch is part of the main Warthian terminal…

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The mysteries of jadeite jade, a monitor of subduction-zone fluids
2022
Walter Viktor Maresch1, Andreas Hertwig2, Hans-Peter Schertl1

Jadeite jade is the rare variety of jade at present known only from 20 localities of high-pressure, subduction-zone serpentinite mélange. Jadeite jade is tough, hard and brilliant when polished. It…

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The Namaqua Metamorphic Complex: Geochronology and geochemical signatures of the Aus Crystalline Complex (Southern Namibia)
2023
Jessica Haschke1, Mandy Zieger-Hofmann1, Johannes Zieger1, Ulf Linnemann1, Anja Sagawe1, Andreas Gärtner1, Sebastian Haschke2

The Namaqua Metamorphic Complex (NMC) forms a basement unit of the Grenvillian-Kibaran collisional orogen in southern Namibia and South Africa. The Aus Crystalline Complex is a terrane within the NMC…

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The new Cologne Noble Gas Laboratory – Extraction and Analysis of cosmogenic Ne Isotopes
2022
Benedikt Ritter1, Andreas Vogt1, Tibor J. Dunai1

We established a new laboratory for noble gas mass spectrometry that is dedicated to the development and application to cosmogenic nuclides at the University of Cologne. At the core of…

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The Ohangwena aquifer system in Angola and Namibia – a fresh paleo-groundwater resource in an arid and saline environment
2023
Roland Bäumle1, Kevin de Vriendt1, Georg Houben1

The transboundary Cuvelai-Etosha Basin (CEB), located in Southern Angola and Northern Namibia, is part of the Kalahari Basin, one of the world´s largest intracontinental basins. It contains mostly unconsolidated sandy…

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The ongoing homogenization of primordial and late-accreted components in ocean island basalt mantle sources
2023
Bradley James Peters1, Andrea Mundl-Petermeier2, Valerie A. Finlayson3

The formation of a segregated metallic core is viewed as an inevitable consequence of the growth of larger protoplanets. However, the effect of this process on the distribution of siderophile…

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The ongoing race between emerging contaminants and analytical chemistry: New approaches in ICP-MS/MS and determination of technology-critical elements in marine biota reference materials
2023
Dominik Wippermann1, Ole Klein1, Alexa Zonderman2, Anna Ebeling1, Tristan Zimmermann3, Daniel Pröfrock3

Technology-critical elements (TCEs) show a dramatic increase in industrial applications in recent years and decades. Technological applications in our everyday life have come a long way in the number of…

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The Origin and Relationship of Bronze Blades from the “Sögel-Wohlde-Kreis” – a holistic (Isotope-) Geochemical Approach
2022
Andreas Wittke1, Bart Cornelis1, Gerhard Brügmann1, Daniel Berger1

Determining the origin of archaeological bronzes and their metal sources is one of the great desiderata of archaeologists. Answersing these questions is often difficult with archaeological and typological methods alone,…

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The origin of the lunar volatile depletion inferred from zinc and copper isotopic compositions of mare basalts
2023
Guillaume Florin1, Philipp Gleißner1, Harry Becker1

Although the giant impact hypothesis is the most accepted model for the formation of the Moon the origin of its volatile depletion is still matter of debate. The heavy isotopic…

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The Paleocene -Eocene Thermal Maximum indications based on Planktic and large foraminiferal Turnover across the Kurdistan Foreland Basin (N. Iraq).
2022
Fadhıl Ahmed Ameen1

The evidence for warming comes from a variety of sources, the most compelling of which is the diversification, extinctions and evolutions of the planktic and benthic forams across the Paleocene…

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The Paleozoic supercontinent cycle and regional tectonics
2021
Uwe Kroner1, Tobias Stephan2, Rolf L. Romer3

Ancient plate boundary processes define the first order architecture of consolidated continental crust. Therefore, regional tectonic features allow for the reconstruction of plate tectonic processes. Here we explain the Paleozoic…

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The permeability of granite deformed in the brittle regime to large strains: Implications for the permeability of fractured geothermal reservoirs
2021
Michael Heap1,2, Hugo Duwiquet3,4, Luke Griffiths5, Laurent Guillou-Frottier3,4, Patrick Baud1, Marie Violay6

Efficient fluid flow and circulation are important for an economically viable geothermal reservoir. One type of underexplored reservoir for high-temperature geothermal exploitation is a crustal fault zone, where hot fluids…

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The Pleistocene sediments of the Palaeoatbara in eastern Sudan as an archive for the evolution of the Nile river system
2021
Robert Bussert1, Mosab Mohammednoor1,2, Faysal Bibi2, Anne Delagnes3, Sumiko Tsukamoto4, Omar Bedri5, Brian Kraatz6, Ignacio Lazagabaster2, Johannes Müller2, Khalaf Salih7, Ali Eisawi7

Geological evidence and geodynamic modelling suggest that the Nile river system has been largely stable since its origins ~30 Ma. The Nile could have provided a long-term migration route for…

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The potential of detrital garnet in UHP research as exemplified by the central Saxonian Erzgebirge
2020
Jan Schönig (1), Hilmar von Eynatten (1), Guido Meinhold (1,2) & Keno Lünsdorf (1)

Understanding the occurrence, extent, and lithological variability of UHP metamorphic domains is fundamental to plate tectonics and its evolution through geologic time. In the central Saxonian Erzgebirge (Germany), the highest…

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The power of crystal optics
2022
Reinhard X. Fischer1, Robert D. Shannon2

It is demonstrated here that refractive-index measurements can be used to determine details of chemical compositions and physical properties of crystals. For example, the H2O content of hydrous minerals can…

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The Precambrian Volyn biota, Ukraine – example for a continental micro-ecosystem of the deep biosphere
2022
Gerhard Franz1, Peter Lyckberg2, Vladimir Khomenko3, Vsevelod Chernousenko4, Hans-Martin Schulz5, Ulrich Struck6, Ulrich Gernert7, Jörg Nissen7

The Volyn biota, a distinct example of 3D-preservation of ~1.5 Ga old Precambrian fossils from huge cavities in granitic rocks as a habitat for microorganisms in the deep biosphere, consist…

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The provenance of the sandstone used for the construction of temples in the World Heritage Site of Angkor, Cambodia
2022
Gerhard Lehrberger1, Hans Leisen2, Esther von Plehwe-Leisen3

Many of the Angkor temples with their magnificent decoration are built of sandstone. A greyish-green variety of arkose with an argillitic-chloritic binding was used typically, including the famous temple Angkor…

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The reactivated intraplate Osning Lineament in northern Germany – Near-surface investigations using P- and SH-wave reflection seismics
2023
Sonja Halina Wadas1, David Colin Tanner1

Neotectonic movements can cause severe hazards and are scientifically and socially relevant for seismic hazard assessment and utilisation of the subsurface. In northern Germany, a presumed aseismic region, little is…

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The regional significance of the potash deposits in the Danakhil depression, Ethiopia
2023
Sebastiaan van der Klauw1, Christian Fritze1, Stephan Pfeifer1

The Danakhil depression is a regional structure in Ethiopia that extents over about 450 km from the Gulf of Djibouti to the NW approximately parallel to the Red Sea coast….

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THE RELEVANCE OF MULTIPLE INTELLIGENCES AND THE LEARNING OF GEOSCIENCES: A CONTENT ANALYSIS OF PRE-SERVICE TEACHERS‘ REFLECTIONS
2023
Dulce Manuel Lima1, Nir Orion2, Clara Maria Vasconcelos3

The concern with teaching centred on the characteristics and students’ needs is one of the reasons why the Multiple Intelligence (MI) theory is emerging and has become a trend in…

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The ROBOMINERS approach to mining small and difficult to access deposits
2020
Luís Lopes

The ROBOMINERS project, funded under the EU Horizon 2020 programme, Grant Agreement no. 820971, is developing an innovative solution for the exploitation of small and difficult to access deposits in…

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The role of basalts in the Earth’s carbon-cycle: lessons learnt from continental and ocean drilling investigations to tackle anthropogenic warming
2023
Christophe Galerne1, Wolfgang Bach1, Nils Lenhardt2, Jörg Hasenclever3, Achim Kopf4, Wolf-Achim Kahl5, Christin Wiggers1, Annette Götz6

Permanent carbonate mineralisation in basalt is a promising solution for Carbon Capture and Storage of anthropogenic greenhouse gases without the risk of leakage. While this process is known to occur…

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The role of Regional Geology as key aspect in the planning of large subsurface infrastructures
2023
Marius Waldvogel1, Raphael Burchartz2, Bjorn Vink3, Pooya Hamdi2

The Einstein-Telescope (ET), a next-generation gravitational wave-detector, is a triangular shape underground facility with 10 kilometres long arms to be constructed at a depth of 200-300 meters below surface. A…

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The role of S3•- in molybdenum transport by hydrothermal fluids revealed by in situ X-ray absorption spectroscopy
2022
Maria A. Kokh1, Manuela Borchert2, Stephan Klemme3, Christian Schmidt4, Jean-Louis Hazemann5, Denis Testemale5, Antonio Aguilar6, Elena F. Bazarkina7, Christoph Moeller8, Clément Laskar9, Gleb S. Pokrovski9, Max Wilke8

The knowledge of molybdenum speciation under hydrothermal conditions is a key for understanding the formation of porphyry deposits which are the primary source of Mo. Previous studies have revealed a…

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The Saxothuringian “Wrench-and-Thrust Zone” – the connecting link between the Peri-Gondwana shelf and the Variscan orogen.
2021
Franz Müller, Uwe Kroner

The Saxothuringian Zone of the Central European Variscides preserves the sedimentary record of the post-Cadomian shelf and an Early Carboniferous synorogenic basin. Thus, this area reflects the transition from a…

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The search for trace elements in stardust silicate grains
2022
Jan Leitner1, Peter Hoppe2, Mario Trieloff3

Isotopically anomalous dust grains that formed in the outflows of evolved stars and in the ejecta of stellar explosions are a minor, but important component of primitive Solar System materials….

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The Segmented Zambezi Sedimentary System from Source to Sink 1. Sand Petrology and Heavy Minerals
2021
Eduardo Garzanti1, Guido Pastore1, Alberto Resentini1, Giovanni Vezzoli1, Pieter Vermeesch2, Lindani Ncube3, Helena Johanna Van Niekerk3, Gwenael Jouet4, Massimo Dall'Asta5

The Zambezi River rises at the center of southern Africa, flows across the low-relief Kalahari Plateau, meets Karoo basalt, plunges into Victoria Falls, follows along Karoo rifts, and pierces through…

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The Shahejie Formation in the Dongpu Depression, Bohai Bay Basin, China: Geochemical investigation of the origin, deposition and preservation of organic matter in a saline lacustrine environment during the Middle Eocene
2022
Tianyu Zheng1, Laura Zieger1, Alireza Baniasad1, Sebastian Grohmann1, Ralf Littke1

A new set of geochemical, petrographical and mineralogical data on important petroleum source rocks from Eocene Shahejie Formation in the Bohai Bay Basin, Eastern China is presented to investigate organic…

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The southern Baltic Sea – a geoarchive to investigate Quaternary fault reactivation due to glacial isostatic adjustment
2023
Elisabeth Seidel1, Holger Steffen2, Rebekka Steffen2, Niklas Ahlrichs3, Christian Hübscher1

The southern Baltic Sea between the German and Polish coast in the south and the Danish and Swedish coast in the north comprises the well-investigated structural-geological situation along the Tornquist…

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The SpannEnD project – Towards a robust prediction of the 3D stress state in the upper crust of Germany
2021
Karsten Reiter1, Steffen Ahlers1, Sophia Morawietz2, Luisa Röckel3, Tobias Hergert1, Andreas Henk1, Birgit Müller3, Oliver Heidbach2

The assessment of the long-term stability of geological units in the context of subsurface use is a complex topic in which various geoscientific and technical aspects play an important role….

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The spectroscopy of luminescent geological materials
2021
Ian M. Coulson

Luminescence is the non-incandescent emission of light from materials excited by an electron beam. Electron irradiation raises sample electrons to an excited state, which then emit a photon as they…

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The stability of Tuite [γ-Ca3(PO4)2] in peridotitic bulk systems and its significance for volatile and trace element transport into the deep Earth
2022
Tristan Pausch1, Jaseem Vazhakuttiyakam1, Antony C. Withers2, Thomas Ludwig3, Bastian Joachim-Mrosko1, Jürgen Konzett1

Apatite is an important host for halogens and incompatible trace elements, in particular for LILE and REE. The P-T stability of its high-P breakdown product tuite and its potential role…

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The story of Sc in bauxite residues and its journey from ore to waste to value
2022
Marie C. Gentzmann1, Christian Adam2

Bauxite residue (BR) is a massive waste stream generated worldwide from Alumina production that is intensely studied for its potential reuse and as a secondary resource for various metals. More…

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The StraboSpot data system for geological information: An overview
2020
Basil Tikoff (1), Julie Newman (2), J Douglas Walker (3), Randy Williams (1) & Vasileios Chatzaras (4)

StraboSpot is a geologic data system that is designed to allow researchers to digitally collect, store, and share both field and laboratory data (Walker, J.D., et al., 2019, StraboSpot data…

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The structure of Börnersdorf (Osterzgebirge) – an evidence of a maar volcano
2023
Ottomar Krentz1, Frank Horna2

During a mapping-project in 2011, evidence of a sediment occurrence was discovered within a morphological depression of a gneiss area in the Osterzgebirge near the village of Börnersdorf (Saxony). Marls…

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The struggle of choosing the “best” data basis for remote geomorphological analyses – Quality assessment of open-source digital elevation models in Northwest Namibia
2022
Julian Krieger1, Janek Walk1, Frank Lehmkuhl1

Today, digital elevation models (DEM) form the data basis for most geomorphological analyses. With the wide range of freely available, global DEMs, the question arises which option is the best…

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The taphonomic fate of biominerals in hydrothermal sulfide systems – implications for the reconstruction of microbial life in deep time
2022
Eric Alexander Runge1, Muammar Mansor1, Andreas Kappler1, Yu Pei1, Hrvoje Višić1, Jorinel-Manuel Domingos1, Philip Werner1, Jan-Peter Duda1

Hydrothermal sulfide systems are among the most ancient habitats on Earth and are widely considered potential sites for the emergence of life. Deposits from such settings are thus of great…

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The tectonics of the Elbtalschiefergebirge-Osterzgebirge-Zone and the role of the Mid-Saxon-Fault
2023
Lea Marie Schulze1, Uwe Kroner1, Ines Görz2

The Elbe zone constitutes a complex fault zone on the northern edge of the Bohemian Massif. As part of this zone, the Elbtalschiefergebirge is juxtaposed with the Lausitz to the…

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The temperature control on the intensity of silicate weathering
2023
Kai Deng1, Shouye Yang2, Yulong Guo2

Chemical weathering of silicate minerals plays a vital role in maintaining the long-term habitability of Earth’s climate over geological timescales via a negative feedback mechanism. But much debate concerns the…

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The temporal variability of sediment composition in modern rivers: provenance or grain size signal?
2021
Laura Stutenbecker, Nirmal Raila, Enrico Schwind, Dirk Scheuvens

The first step in any provenance study is sampling the sediment of interest, which is subject to many potential sources of error. It is nevertheless commonly assumed that one sample…

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The Transparent Virtual Round Table Of The Helmholtz Metadata Collaboration (HMC) Earth and Environment Hub
2023
Andrea Pörsch1, Emanuel Söding2

The mission of the Helmholtz Metadata Collaboration (HMC, https://helmholtz-metadaten.de/en) is to facilitate the discovery, access, machine readability, and reuse of research data of the Helmholtz Association. Concepts and services are…

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The trend towards renewable energies & the role of rare earths: How sustainable is it? China as an example!
2022
Julia Tiganj1, Tobias Rudolph1

The global turnaround in the energy industry shows clear tendencies towards the further integration of renewable energy alternatives. While China is especially known for being the worldwide biggest producer and…

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The Triassic Revolution on land
2023
Michael J. Benton1

The evolution of terrestrial life was as profoundly affected by the end-Permian mass extinction as life in the sea. The recovery of life in the Triassic represented much more than…

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The TRR170-DB Data Repository: Improving Metadata for FAIR Planetary Replication Datasets
2022
Elfrun Lehmann1, Harry Becker1

TRR170-DB (https://planetary-data-portal.org/) is a re3data (r3data.org) referenced data repository that stores machine-readable replication datasets of the collaborative research center ‘Late Accretion onto Terrestrial Planets’ (TRR 170) and from other institutions…

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The Utrecht Companion to the Earth: Making the Field an Even Richer Learning Environment
2020
João P. Trabucho Alexandre, Hans de Bresser, Andrea Cuesta Cano & Yorick P. Veenma

The ultimate aim of field courses should be to enable students to work autonomously in the field. Student- and problem-centered approaches to learning in the field afford students much autonomy,…

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The value of heat interconnection pipelines in the use of deep geothermal energy
2021
Markus Loewer, Maximilian Keim, Anahi Molar-Cruz, Christopher Schifflechner

Over the past fifteen years, Bavaria has become a hotspot for deep geothermal utilization in Europe. There are now 24 plants operating in the Molasse Basin that provide climate-friendly heat,…

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The WAlps project: Casting new light on scheelite tungsten deposits in the Eastern Alps
2020
Florian Altenberger (1), Julia Weilbold (2), Johann G. Raith (1), Albert Schedl (2), Christian Auer (2), Tanja Knoll (2), Holger Paulick (2) & Hassan Neinavaie (3)

Based on considerations such as economic importance and potential challenges to supply security some mineral raw materials are considered “critical”. One prominent example is tungsten, for which supply is strongly…

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The Werra-Fulda mining district, underground extension of the CEVP-alkaline magmatic province – New insights in the magmatic evolution and its interaction with evaporitic deposits
2021
Axel Zirkler1, Ulrich A. Glasmacher2, Florian Krob2, Silvio Zeibig1, Jochen Olbert2, Istvan Dunkl3

The Werra-Fulda mining district located in Central Germany hosts a world-class deposit of sulfate bearing potash salts. The Permian (Zechstein, ca. 255 Ma) evaporite sequence was intruded by mafic melts…

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The Working Group on Mining Consequences of the DGGV e. V.
2023
Henny Gerschel1, Katrin Kleeberg2

With its long mining history, Germany is a country with an important tradition in the field of mining science. The „Working Group on Geoscientific Aspects in Mining Areas“ has been…

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The World Heat Flow Database project: a new research data infrastructure for a community-driven Global Heat Flow Database
2023
Sven Fuchs1, Ben Norden1, Florian Neumann1, Kirsten Elger1, Sam Jennings1, Simone Frenzel1, Nickolas Ott2, Stephan Maes2

The Global Heat Flow Database (GHFDB) is fostered and maintained by the International Heat Flow Commission (IHFC) for nearly 60 years. During these decades, the technological database concepts and storing…

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The Yarmouk basin, an essential transboundary water resource
2021
Christian Siebert1, E. Shalev2, F. Magri3, P. Möller4, E. Salameh5, T. Rödiger6

The Yarmouk River is the primary tributary to the Jordan River and a strategic transboundary freshwater resource of Syria, Jordan, and Israel. In the past decades, the Yarmouk watershed has…

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The Zagros Mountain Front Flexure in Kurdistan Region of Iraq: Structural style and Late Pleistocene-Holocene Fault Slip Rates Derived from Structural Modeling and Luminescence Dating of River Terraces
2021
Mjahid Zebari1,2, Frank Preusser3, Christoph Grützner1, Payman Navabpour1, Kamil Ustaszewski1

The Zagros Mountain Front Flexure (MFF) makes a prominent topographic and structural step along the Zagros Fold-Thrust Belt that accommodates a significant amount of shortening between the Eurasian and Arabian…

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Thermal and gravity field implications of converting a mantle shear-wave velocity tomography of the South China Sea region to temperature and density
2023
Yan Li1, Judith Bott2, Scheck-Wenderoth Magdalena2, Pingchuan Tan3, Shaowen Liu4

The seismic wave velocity configuration of the mantle provides constraints on its thermal and hence density structure, although the proposed methods of wave velocity conversion differ significantly. The V2RhoT_gibbs is…

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Thermal heat storage in abandoned coal mines in the Ruhr area
2023
Mathias Nehler1, Florian Hahn1, Stefan Klein1, Stefan Stürmer2, Thomas Heinze3, Laura Blaes3, Tobias Licha3, Pascal Kosse3, Torsten Seidel4, Christoph M. König4, Thomas Grab5, Lukas Oppelt5, Timm Wunderlich5, Benedikt Ahrens1, Claudia Finger1, Rolf Bracke2, Marco Dietl1, Edith Nettmann3, Stefanie Erstling1

The Winzer project investigates the opportunities and challenges of implementing ATES systems in old groundwater-filled coal mines. For this purpose, a near-surface (

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Thermal memory of sedimentary basins: case study from the Central European Basin System
2020
Maximilian Frick (1), Mauro Cacace (1), Uwe Mikolajewicz (2) & Magdalena Scheck-Wenderoth (1,3)

This study deals with modelling the distribution of the subsurface temperature in space and the respective evolution in time in response to variations in the thermal boundary condition starting from…

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Thermo-compositional models of the West Gondwana cratons
2021
Nils-Peter Finger1,2, Mikhail K. Kaban1,3, Magdala Tesauro4,5, Walter D. Mooney6, Maik Thomas1,2

When Western Gondwana broke apart into the South American and African continents ⁓ 120 Ma ago, some of its cratons were broken apart as well. Following the isopycnic hypothesis, their…

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Thermobarometry at extreme conditions – what can possibly go wrong? An example
2021
Thorsten Joachim Nagel1, Kathrin Fassmer2

We present eclogites and garnet pyroxenites from Danmarkshavn (Greenlandic Caledonides). So far, one ultra-high pressure (UHP) location has been described from NE Greenland. There, thermobarometry yielded conditions of 972 ºC/36…

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Thermodiffusion of Solutes in Nanoporous Materials
2022
Yuankai Yang1, Guido Deissmann1, Moran Wang2, Dirk Bosbach1

Thermodiffusion describes the motion of solutes along a temperature gradient, also called the Soret effect. With respect to the geological disposal of high-level radioactive wastes, a better understanding of the…

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Thermodynamic investigation of the Li2O-MnO system in a certain composition region relevant for slag tailoring in the field of lithium-ion battery (LIB) recycling
2022
Haojie Li1, Marko Ranneberg2, Michael Fischlschweiger1

New developments of energy-efficient recycling processes and systems for LIB recycling are required from the perspective of resource circulation, raw material supply and sustainability. One promising approach is based on…

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Thermoelastic properties of highly porous mullite ceramics
2022
Jürgen Schreuer1, Jan-Frederick Hörster1, Mariano Talou2, Andrea Camerucci2, Hartmut Schneider3

Mullite is one of the most important constituents of oxide ceramics because of its outstanding thermo-mechanical properties in oxidizing environments at high temperatures. In order to study the influence of…

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Thermoelastic properties of olivine-type sinhalite and chrysoberyl
2022
Jürgen Schreuer1, Heimes Hednrik1

Similar to the mullite-types, the structures of olivine-type materials are dominated by parallel chains of edge-sharing MO6 octahedra. The large number of crystal species belonging to these groups makes it…

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Thermoelastic properties of partially metamict zircon: Indication of multi-stage recrystallization processes
2022
Marie Münchhalfen1, Jürgen Schreuer1

Radioactive decay of unstable isotopes causes damage to zircon, which significantly reduces its elastic stiffnesses (e.g., Özkan, 1976). These damages can be partially healed by temperature treatment of the zircon…

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Think or Sink: unravelling anthropogenic causes of subsidence with a hybrid AI approach
2020
Thibault G.G. Candela (1), Joana C. Esteves Martins (2), Peter A. Fokker (1), Aris Lourens (3), Willem Dabekaussen (3), Wilfred F.J. Visser (4), Erik A.F. Langius (5), Madelon S. Molhoek (6), Matthias S. Fath (6), Andrei Bocin-Dumitriu (3) & Kay Koster (3)

The Netherlands is subject to anthropogenic and natural subsidence with rates which are an order of magnitude higher than sea-level rise. Because one-third of the Netherlands lies below mean sea…

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THM Experiment for the Investigation of Freeze-Thaw Processes in Unconsolidated Rock and Geotechnical Grouts
2020
Jan Christopher Hesse (1,2), Jan-Henrik Kupfernagel (3), Markus Schedel (1,2), Bastian Welsch (1,2), Lutz Müller (3) & Ingo Sass (1,2)

Freezing and thawing in the subsurface is often associated with a complex technical handling of possible influences on the engineered structures (e.g. ground freezing, permafrost, geothermal heat pumps). However, detailed…

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Threats to groundwater quality in the Anthropocene
2021
Christian Moeck1, Mario Schirmer1,2

Groundwater quality degradation is a well-recognized phenomenon and has received considerable attention since the industrial revolution. In spite of this, many aspects concerning the understanding and management of groundwater as…

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Three years communicating geosciences in social networks: Divulgacion Terrologa
2022
Luis Rodrigo Martinez Abarca1, Sandra García León2

Social networks have become important communication bridges between the scientific community and society. For this reason, on June 11, 2019, “Divulgacion Terrologa” was created. This is a Facebook and Instagram…

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Three-component fluid mixing: Evidence from trace element and isotope systematics in vent fluids and sulphides from Maka volcano, North Eastern Lau Spreading Centre
2021
Lukas Klose1,3, Manuel Keith2, Daniel Hafermaas2, Charlotte Kleint3,4,1, Wolfgang Bach3,4, Alexander Diehl3,4, Frederike Wilckens3,4, Christian Peters5, Harald Strauss5, Reiner Klemd2, Karsten Haase2, Andrea Koschinsky1,3

The axial volcanic edifice of Maka at the North Eastern Lau Spreading Centre shows intense hydrothermal activity at two vent sites (Maka HF and Maka South) emitting fluids of distinct…

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Thrust and strike-slip fault control, in the late Eocene to Miocene, of Pindos foreland basin evolution: SE Aitoloakarnania area, western Greece.
2021
Vasiliki Zygouri1, Angelos Maravelis2, Elena Zoumpouli1, Chrysanthos Botziolis1, Avraam Zelilidis1

Evolutionary stages, from late Eocene to Miocene, of Pindos foreland, mark the transition from Pindos oceanic basin, in the east, to Gavrovo carbonate platform sedimentation in the west. Pindos Thrust…

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Time indications in the Rotliegend and the Permian ‘Pangaea Gap’
2023
Manfred Menning1, Johannes Glodny1

Time indications in the Rotliegend Group of Germany are integrated and presented in a new way (Menning et al. 2022, ZDDG 173: 3–139). (1) U-Pb CA-ID-TIMS radio-isotopic age determinations from…

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Time-dependent fracture permeability induced by fluid-rock interactions under intermittent and continuous flow
2021
Chaojie Cheng, Harald Milsch

Fractures are the predominant flow pathways in low-permeability rocks. Understanding the fluid-rock interactions that occur in rock fractures and their effects on fracture aperture variations is important for assessing the…

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Time-lapse imagery of a highly active submarine channel and its implications for seafloor geohazards
Maarten Heijnen (1,2), Michael Clare (1), Matthieu Cartigny(3), Sophie Hage(2,4), Gwyn Lintern (5), Cooper Stacey (5), Daniel Parsons (6), Stephen Simmons (6), Ye Chen (6), Esther Sumner (2), Justin Dix (2), John Huges Clarke (7),

National Oceanography Centre (1); Ocean and earth Sciences, University of Southampton (2); Departments of geography and Earth Sciences, Durham University (3); Department of Geoscience, University of Calgary (4); Natural Resources…

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Timescales of magmatism in the Eifel (Germany), from crustal growth to Quaternary volcanism – A xenolith perspective
2022
Anne Sturm1, Axel Schmitt1

Xenoliths transported to the surface by ascending magmas are crucial to decipher the structure and composition of the Earth’s crust and provide valuable insights into melt formation and magma storage…

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Timing and conditions for peak metamorphism in Isua (Western Greenland)
2022
Benjamin Chaim Fievé Eskesen1, Kathrin Fassmer2, Carsten Münker3, Thomas Ulrich1, Kristoffer Szilas4, Thorsten Nagel1

We present a Lu-Hf-garnet-amphibole-whole rock age of 2.59 ± 0.11 Ga for a carbonaceous garnet-hornblende-mica schist from the Isua supracrustal belt (western Greenland). Petrological data indicate prograde garnet growth towards…

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Timing and mechanisms of Late Mesozoic to Early Cenozoic exhumation and uplift in Central Europe Hilmar von Eynatten, Jonas Kley, István Dunkl
2021
Hilmar von Eynatten, Jonas Kley, István Dunkl

Widespread exhumation and uplift affected Central Europe in Late Cretaceous to Paleogene time (e.g. Kley and Voigt, 2008, Geology, 36, 839-842). The area involved includes thrust-related basement uplifts and inverted…

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Timing and metamorphism of the root of a magmatic arc on the West Gondwana margin: a case study of the Socorro Nappe and São Roque Domain in south-eastern Brazil
2022
Mikaella Balis1, Bernhard Schulz1, Mario da Costa Campos Neto2

The assembly of West Gondwana resulted in a high-grade nappe system of south-eastern Brazil that comprises a magmatic arc remnant (Socorro-Guaxupé Nappe). The UHT metamorphism is product of the collision…

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Timing of the post-LGM retreat of the Iller Piedmont Glacier (Southern Germany) based on in-situ 36Cl exposure dating of glacial erratics
2021
Dominic Hildebrandt1, Florian Hofmann1, Silke Merchel2,3, Georg Rugel2, Kathrin Strößner1, Sami Akber1, Anke M. Friedrich1

The dynamic behavior of glacial retreat following the Last Glacial Maximum (LGM), which is globally diachronous, is poorly understood. Along strike of the northern Alpine margin, multiple lobes of large…

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Tin and bronze in prehistoric Central Asia, or: how a slag sheds new light on an old question – Results from a multidisciplinary approach
2022
Daniel Berger1, Gerhard Brügmann1, Ronny Friedrich1, Hans-Peter Meyer2, Ernst Pernicka1

Central Asia is considered one of the key regions as a potential supplier of Bronze Age tin and thus – at least part of – the answer to the question…

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Tourism at Historic Mining Sites in Europe
2020
Eoin McGrath, Tim Workman & Des Johnston

Europe has a long mining history dating back to the Bronze Age (3300 – 1200 BC). Early mining activity was carried out in a primitive manner and only relatively high…

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Towards a cost-efficient method to apply anthropogenic gadolinium as a pseudo-natural tracer in monitoring waste water-derived xenobiotics in tap water
2022
Lea Marie Krohn1, Franziska Klimpel1, Michael Bau1

Anthropogenic Gd in the aquatic environment originates from very stable water-soluble Gd complexes used as contrast agents in magnetic resonance imaging (MRI). These contrast agents cannot be removed in waste…

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Towards a geochemical approach to guide hydrothermal REE recovery from NdFeB magnets
2023
Fabrice Brunet1, Hugues Cabane2, Simona Denti1, Sophie Rivoirard3

The NdFeB magnet world demand has doubled since 2005 to reach above 120 kton in 2020 [1]. The growing demand for REEs prompts their recycling. Sintered NdFeB permanent magnets are…

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Towards a green future – Where is the critical raw material resource potential in Europe?
2021
Daniel P. de Oliveira1,2

The “Green Future”; a concept of desirable European climate-neutral living conditions, which is the goal of the EU Green Deal means a huge increase in the use of mineral raw…

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Towards a harmonised inventory for European mineral resources
2021
Kari Aasly1, Mark Simoni1, Pasi Eilu2, Lisbeth Flindt-Jørgensen3

With the global increase in raw material demand there is a need for harmonized supporting tools for sustainable resource management in Europe. Europe needs to assess their resource potential, but…

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Towards a more robust assessment of internal K-content for single-grain feldspar luminescence dating.
2022
Linda Maßon1, Svenja Riedesel1, Anja Zander1, Tony Reimann1

Accurate dose rate determination is essential in luminescence dating studies and when using feldspars, the internal K-content has to be considered. Until recently it was common practice to base the…

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Towards a sediment budget of Permo-Triassic successions in the Central European Basin – implications for terrestrial perturbations around the Permian-Triassic Boundary (PTB)
2020
Maryam Mansouri & Matthias Hinderer

For the first time, we quantified the erosional pulse around the Permian-Triassic Boundary (PTB) over an entire sedimentary basin. Our GIS-based analysis relies on basin-wide homogenized seismic, sedimentary and stratigraphic…

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Towards a single Cosmochemical Database: MetBase and the Astromaterials Data System (AstroMat) started a common future.
2022
Dominik C. Hezel1, Kerstin A. Lehnert2

MetBase is since more than 20 years one of the world’s largest database for meteorite compositions [1], currently hosted in Germany. Recently, the Astromaterials Data System (AstroMat) has been developed…

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Towards coupled geodynamic and hydrothermal numerical rift models of sediment-hosted Copper and Zinc deposits
2022
Anne Glerum1, Philipp Weis2, Joseph Magnall1, Sarah Gleeson3, Sascha Brune2

Many large sediment-hosted base metal deposits occur in failed continental rifts and the passive margins of successful rifts, e.g., in the MacArthur Basin, Australia, and the Selwyn Basin in Canada….

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Towards high efficacy Early Warning in Europe
2022
Andreas Nikolaus Küppers1

Early Warning Systems for natural disasters are the most promising means of saving lives, property and societal integrity in cases of impending natural hazards. They are expected to be critically…

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Towards identifying scale-dependent impacts on groundwater level dynamics with Deep Learning
2021
Annika Nolte1,2, Steffen Bender1, Jens Hartmann2, Stefan Baltruschat1,2

Detailed process-understanding of climatic and non-climatic drivers is generally required to estimate future groundwater availability under climate change. Groundwater level (GWL) dynamics are very sensitive to groundwater pumping, but information…

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Towards quantitative understanding of volatile and metal release from magmas
2022
Zoltan Zajacz1

Porphyry-type Cu-Au-Mo deposits form by ore metal sulfide precipitation from magma-derived fluids. For the efficient generation of such deposits, a magmatic fluid phase simultaneously rich in ore metals and SO2…

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Toxicological effects of rare earth elements to photosynthetic organisms
2021
Edith Padilla Suárez1, Antonietta Siciliano1, Marco Guida1,2, Giovanni Pagano2, Marco Trifuoggi3, Sara Serafini1, Emilia Galdiero1, Franca Tommasi4, Giusy Lofrano2, Isidora Gjata4, Antonios Apostolos Brouziotis1,3, Renato Liguori4, Giovanni Libralato1

Rare earth elements (REEs) have become a key component in many technological applications. Due to the rapid increase in their use, the potential environmental exposure has also expanded. However, the…

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Trace element mobility in hydrothermal calcite during low temperature alteration – implications for radionuclide retention
2023
Ferdinand Kirchner1, Martin Kutzschbach1, Thomas Neumann1

The recent exploration for nuclear waste repositories includes the evaluation of safety mechanisms in case of a leakage of radiotoxic material. Possible retention mechanisms like the uptake of these elements…

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Trace element mobilization in the monzogranite of Soultz-sous-Forêts
2022
Michèle Jungmann1, Benjamin F. Walter1, Tobias Kluge1, Elisabeth Eiche1, Jochen Kolb1

In the context of combined raw material and energy production, public attention focusses increasingly on geothermal power plants. The Upper Rhine Graben (URG) in southwest Germany and eastern France is…

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Trace element partitioning between apatite and carbonatite melt at 800 °C and 200 MPa
2021
Haihao GUO, Fabrice Gaillard, Zineb Nabyl

Apatite is a pivotal mineral in carbonate rocks, because it can incorporate all of the major magmatic volatile species (H, P, F, S, Cl), as well as REE and HFSE…

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Trace metal mobility during magnetite to hematite transformation in iron ores
2022
Thomas Angerer1, Florian Treff2, Dominik Gudelius3

Iron oxides are ubiquitous minerals in the earth’s crust and earth scientist are utilizing their chemical complexity to characterize rock/ore forming conditions. Compared to magnetite, only few studies exist on…

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Trace-element characteristics of the Buck Reef Chert (Barberton, S. Africa)
2020
Naomi Soraya Lamers, Kirsten van Zuilen & Pieter Vroon

The Buck Reef Chert (BRC) forms the boundary between the Hooggenoeg and Kromberg formations of the Barberton Greenstone Belt (S. Africa). The BRC sequence is characterized by the alternation between…

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Tracing life in the Atacama Desert by multi-isotope analyses of sulfates
2022
Swea Klipsch1, Daniel Herwartz1, Claudia Voigt2, Carsten Münker1, Guillermo Chong3, Michael Ernst Böttcher4, Michael Staubwasser1

Calcium sulfates are the dominating salts in soils of the Atacama Desert (Chile) but respective sulfate sources are debated. Various sulfate sources comprise distinct isotopic compositions. To map the spatial…

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Tracing silicate weathering using lithium isotopes: from the lab, to the field and the past
2022
Philip Pogge von Strandmann1

Silicate weathering is the primary mechanism by which atmospheric CO2 is removed and stored for long periods of time. It is therefore a key biogeochemical mechanism in controlling the present…

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Tracing wedge-internal deformation by means of strontium isotope systematics of vein carbonate
2021
Armin Dielforder1, Igor M. Villa2, Alfons Berger2, Marco Herwegh2

Radiogenic strontium isotopes (87Sr/86Sr) of vein carbonates play a crucial role in the tectono-metamorphic study of fold-and-thrust belts and accretionary wedges and have been used to document fluid sources and…

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Tracking high-grade metamorphism: from partial melting to the detrital record
2022
Mahyra Tedeschi1

High to ultra-high temperature (HT-UHT) metamorphism (>800°C) drives changes in rocks that range from the production of chemical heterogeneities to the disturbing of isotopic systems. To disentangle the complex history…

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Traded metal scrap, traded alloying elements: A case study of Denmark and implications for circular economy
2021
Juan Tan

Since metals are often used in alloyed forms, proper management and efficient recycling of metal scrap is key to sustainable management of those alloying metals as well. Previous studies on…

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Tragulid Fauna of Napak
2020
Florian Altenberger (1), Julia Weilbold (2), Johann G. Raith (1), Albert Schedl (2), Christian Auer (2), Tanja Knoll (2), Holger Paulick (2) & Hassan Neinavaie (3)

Based on considerations such as economic importance and potential challenges to supply security some mineral raw materials are considered “critical”. One prominent example is tungsten, for which supply is strongly…

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Transcontinental retroarc sediment routing controlled by subduction geometry and climate change (Central and Southern Andes, Argentina)
2021
Eduardo Garzanti1, Tomas Capaldi2, Giovanni Vezzoli1, Mara Limonta1, Numa Sosa1,3

Central Argentina from the Pampean flat-slab segment to northern Patagonia (27-41°S) represents a classic example of a broken retroarc basin with strong tectonic and climatic control on fluvial sediment transport….

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Transformation Processes and Kinetics in the Magnesium Phosphate Mineral System
2022
Rebecca Volkmann1, Roberts Blukis2, Vladimir Roddatis2, Christian Schmidt2, Liane G. Benning1

Phosphorous is an important nutrient for all living beings. Together with nitrogen, it is a crucial element for the global agriculture, yet it is a limited natural resource. The mineral…

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Transition from hydrocarbon production to geothermal heat storage in the Upper Rhine Graben – the DeepStor project
2021
Eva Schill1,2, Jens Grimmer1, Katharina Schätzler1, Kai Stricker1, Judith Bremer1, Thomas Kohl1

The subsurface conditions of the Upper Rhine Graben are favorable for the development of novel geothermal utilization concepts. In particular, they allow optimization of energy use with flexible heat production…

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Transition from Subduction to Strike-slip: Insights from a well-expressed example in central New Zealand
2023
Laura M. Wallace1

Central New Zealand (southern North Island/northern South Island) occupies a complex transition from subduction to strike-slip at the southern termination of the Hikurangi subduction zone. This transition was also the…

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Transport and reaction of light elements in pegmatitic systems at thermal disequilibrium – first insights from an experimental approach
2022
Christian Ronny Singer1, Harald Behrens1, Stefan Weyer1

The transition from fossil towards green energy sources is one of the major challenges for our society. In order to accomplish this, large amounts of lithium are necessary as a…

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Transport mechanisms of hydrothermal convection in faulted sandstone reservoir —– Implications for kilometer-scale thermal anomalies in Piesberg quarry
2021
Guoqiang Yan, Robert Egert, Maziar Gholami Korzani, Thomas Kohl

A transient 3D model obtained from the Piesberg quarry as an illustrative example is based on idealized structural models that characterize all geological features during Late Jurassic rifting (162 Ma)…

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Transtensional fault segments and fluid migration in the Upper Rhine Graben
2022
Felix Allgaier1, Benjamin Busch1, Christoph Hilgers1

The Upper Rhine Graben is utilized for geothermal- and hydrocarbon exploration, and considered for lithium mining from brines. Subsurface exploration requires an understanding of reservoir- and fault properties, the geomechanical…

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Treatment of metallurgical by-products for metal winning and use as construction material
2022
Christoph Wölfler1

Every year, millions of tons of by-products from the metal producing industry are dumped as waste and this amount is continuously rising. A competence network, involving Montanuniversität Leoben and seven…

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Triassic to Cretaceous magmatic record in SE Vietnam and southern Borneo: the southern limit of the Paleo-Pacific subduction
2023
H. Tim Breitfeld1, Juliane Hennig-Breitfeld1

The eastern margin of Asia formed an active Andean-type margin from the Triassic until the Cretaceous. SE Vietnam and West Borneo were located at the southern end of this subduction…

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Triaxial experiments on marine sediments from the Middle America Trench of Costa Rica (IODP Expeditions 334 & 344)
2023
Meggy Jessica Kerzig1, Rebecca Kuehn1, Michael Stipp1

The erosive convergent plate margin offshore Costa Rica represents a seismic zone that produces high-magnitude earthquakes and tsunamis. The overriding Caribbean Plate is tectonically eroded by the subducting Cocos Plate,…

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TRIM4Post-Mining: an integrated planning tool for the transition from coal extraction to re-vitalized post-mining landscape
2021
Hernan Flores1, Diego Restrepo2, Natalie Merkel2, Stefan Möllerherm1, Jörg Benndorf2

The TRIM4Post-Mining project aims to develop an integrated information modeling system to support decision-making and planning during the transition from coal exploitation to a re-vitalized post-mining landscape, enabling infrastructure development…

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Triple oxygen isotope compositions of iron oxide-apatite deposits – a window into ore formation processes and the ancient atmosphere
2022
Stefan T.M. Peters1, Dingsu Feng2, Valentin Troll3, Andreas Pack2, Ulf B. Andersson4, Fernando Tornos5, Bernd Lehmann6, Tommaso di Rocco2

Iron oxide – apatite (IOA) deposits are magnetite- and apatite-rich rock assemblages that are hosted by intermediate to felsic magmatic rocks, and are frequently mined for iron. The geological formation…

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Triple oxygen isotope measurements of air CO2 around Göttingen
2023
David Bajnai1, Tammo Freese1, Andreas Pack1

The triple oxygen isotope composition (δ18O and ∆’17O) of atmospheric CO2 provides valuable information about CO2 sources and carbon exchange fluxes between atmospheric reservoirs [1-2]. For example, stratospheric CO2 has…

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Triple oxygen isotopes of modern terrestrial mammalian tooth enamel –new implications for paleoenvironmental and physiological research
2023
Dingsu Feng1, Jakub Surma2, Niklas Löffler3, Thomas Tütken4, Fabian zahnow5, Daniel Herwartz6, Andreas Pack5

Triple oxygen isotope (Δ‘17O) analysis has recently be shown to be a powerful tool for identifying metabolic oxygen signatures in mammalian tooth enamel (Pack et al., 2013; Feng et al.,…

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Tropical Climate Variability and Coral Reefs – A Past to Future Perspective on Current Rates of Change at Ultra-High Resolution (SPP 2299)
2023
Thomas Felis1, Miriam Pfeiffer2, Jessica Hargreaves1, Eleni Anagnostou3, Sonia Bejarano4, Patrick Boyden1, Thomas Brachert5, Hana Camelia1, Diana Diers6, Juan Pablo D'Olivo7, Andrew Dolman8, Nicolas Duprey9, Jan Fietzke3, Martin Frank3, Norbert Frank10, Daniel Frick2, Dieter Garbe-Schönberg2, Eberhard Gischler6, Sahra Greve10, Ed Hathorne3, Michael Henehan11, Saori {Sally} Ito2, Oliver Knebel6, Laura Lehnhoff7, Donghao Li1, Alfredo Martinez-Garcia9, Luisa Meiritz3, Ute Merkel1, Regina Mertz12, Wyatt Million13, Phyllis Mono5, Manfred Mudelsee14, Alessio Rovere15, Marlen Schlotheuber16, Christian Voolstra16, Marlene Wall3, Sophie Warken10, Takaaki {Konabe} Watanabe2, Christian Wild17, Yang Yu3, Maren Ziegler13

Climate change, in particular the rise in tropical sea surface temperatures, is the greatest threat to coral reef ecosystems today and causes climatic extremes affecting the livelihood of tropical societies….

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Turbidity current sediment modeling in a rift basin
2021
Aglaia Brandao1, De Ros Luis F.2, Catuneanu Octavian3

Turbidites are the main reservoir rocks in many sedimentary basins. Through well log profiles and using stratigraphy of high-resolution sequences, 6 stratigraphic surfaces of 3 and 4 order were interpreted….

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Turning 80 years of global research on heat flow into a sustainable research data infrastructure
2021
Sven Fuchs

Measured data of the Earth’s surface heat flow are rare observables for heat transport processes in the Earth interior. Precise knowledge of heat flow is thus fundamental (i) to describe…

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Two different parental melt trends for the Deccan Trap main sequence
2022
Josua Pakulla1, Mike Jansen1, Raymond A. Duraiswami2, Purva Gadpallu2, Jonas Tusch1, Frank Wombacher1, Carsten Münker1

The lava flows of the Deccan Large Igneous Province (DLIP) cover at least one million years of continuous magmatic activity across the Cretaceous-Paleogene boundary (Schoene et al. 2021) likely representing…

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Two stages of Coseismic Rupturing separated by a stage of Postseismic Creep indicated by deformed pseudotachylytes from the Silvretta basal thrust
2022
Claudia A. Trepmann1, Lisa M. Brückner1

Decoupling and movement of large crystalline nappes during orogenesis are controlled by episodic deformation at changing strain-rate and stress conditions. Deformed pseudotachylytes from the Silvretta basal thrust in the Central…

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U-Pb analyses of a fossil crab cuticle from the Chattian Doberg strata (NW Germany)
2022
Frank Tomaschek1, Bastian Mähler1, Markus Lagos1, Mark Keiter2, Thorsten Geisler1

A high abundance of arthropod cuticles in the fossil record are well preserved, even at the microstructural level. The age of these fossils is usually constrained chronostratigraphically, but incorporation of…

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U-Pb dating of fluid interactions: Hidden tectonic events in the Telemark domain (southern Norway)
2022
Deniz Öz1, Frank Tomaschek1, Ronald Werner2, Markus Lagos1, Thorsten Geisler1

Regional tectonic events are difficult to detect in a stable continental crust, especially in the absence of major tectonic structures. Tectonic events may, however, trigger crustal fluid migration, leading locally…

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U-Pb in garnet by LA-ICPMS: dating extremely U-poor minerals
2022
Aratz Beranoaguirre1, Leo J. Millonig2, Richard Albert2, Qiao Shu3, Horst R. Marschall2, Axel Gerdes2

Traditionally, “laser-ablation-geochronologist” have taken advantage of the developments in analytical techniques; trying to improve the spatial resolution in their analysis; i.e. reducing the spot size as much as possible. On…

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U-Pb zircon geochronology of the Siebengebirge Volcanic Field – Implications for the dynamics of the Lower Rhine Basin (Germany)
2022
Frank Tomaschek1, Severin Zumkeller2, Leoniedas Reschke3, Sascha Sandmann4, Markus Lagos1

The Oligocene Siebengebirge Volcanic Field (SVF) is located at the south-eastern termination of the extensional Lower Rhine Basin (LRB). Tuffitic deposits, repeatedly embedded within the siliciclastic basin sediments, provide a…

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UHT granulites from the Kaapvaal craton – garnet U-Pb ages record a long period of extreme temperatures in the lower crust in the Archean
2022
Gerhard Peter Brey1, Qiao Shu2, Horst Marschall3, Axel Gerdes3, Aratz Beranoaguirre3, Richard Albert3, Heidi Evamaria Hoefer1

Ultrahigh temperature granulite xenoliths are reported from four cretaceous kimberlites on the Kaapvaal craton that are aligned along the NNE axis of the Witwatersrand basin. The granulites consist of garnet,…

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Ultramafic-hosted volcanogenic massive sulfide deposits: an overlooked sub-class of VMS deposits forming in complex tectonic environments?
2021
Clifford Patten1, Rémi Coltat2, Malte Junge3, Alexandre Peillod4, Marc Ulrich5, Gianreto Manatschal5, Jochen Kolb1

Volcanogenic massive sulphide (VMS) deposits have been recognized both in fossil and present-day settings (e.g. mid-ocean ridges (MORs), back-arcs, island-arcs, fore-arcs) and are associated with different lithologies leading to variable…

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UmweltNAVI Niedersachsen – an app for the presentation of geospatial data not only from the environmental sector.
2023
Joachim Müller1

Governmental and scientific institutions often have a problem communicating their data treasure to people outside their community. Presenting geospatial data in an appealing and accessible way is a challenge, especially…

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UN Framework Classification – a tool for Sustainable Resource Management
2020
Felix Noah Wolf (1), Dietrich Lange (1), Heidrun Kopp (1,2), Anke Dannowski (1), Ingo Grevemeyer (1), Wayne Crawford (3), Martin Thorwart (2), Anne Paul (4) & the AlpArray Working Group (5)

The Liguro-Provencal-basin was formed as a back-arc basin of the retreating Calabrian-Apennines subduction zone during the Oligocene and Miocene. The resulting rotation of the Corsica-Sardinia block is associated with rifting,…

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UN Framework Classification – a tool for Sustainable Resource Management
2020
Zoltán Horváth (1), Daniel de Oliveira (2), Kari Aslaksen Aasly (3), Mark Simoni (3), Lisbeth Flindt Jørgensen (4), David Whitehead (4), Antje Wittenberg (5), Ulrich Kral (6), Charlotte Griffiths (7), Harikrishnan Tulsidas (7) & Slavko Solar (8)

With the global increase of raw material consumption there is a growing need for standardized decision support tools for sustainable resource management both at global and EU-levels. The United Nations…

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Uncertainty Analysis of CO2 Storage Capacity Estimation in Saline Aquifers of the German North Sea
2023
Jan Tecklenburg1, Stefan Knopf1, Franz May1

The reliable estimation of the dynamic storage capacity for CO2 storage is a significant challenge due to the uncertainty of process parameters. In our study, we consider storage in the…

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Uncertainty and risk analysis in basin and stratigraphic modelling: the response surface approach
2021
Samer Bou Daher, Alcide Thebault

Any attempt at modelling natural phenomena includes a number of numerical assumptions on which we have little or no constraints. Basin and forward stratigraphic modelling are methodologies that aim at…

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Uncertainty Characterisation in Geothermal Exploration
2021
van der Vaart, Jeroen; Frey, Matthis; Bär, Kristian; Sass, Ingo

With the urgent need to quickly reduce CO2 emissions, deep geothermal energy can provide an indispensable contribution in the future energy mix. To encourage future projects, it is essential to…

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Uncertainty Quantification for Geothermal Basin- and Reservoir-Scale Applications
2021
Denise Degen1, Mauro Cacace2, Magdalena Scheck-Wenderoth1,2, Karen Veroy1,3, Florian Wellmann1

Numerical simulations of the governing geophysical processes are crucial for geothermal applications in order to characterize the subsurface. This characterization presents us with major challenges ranging from the correct physical…

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Underground Hydrogen Storage (UHS) – status quo and perspectives in Germany
2021
Matthias Warnecke, Simone Röhling

Recently, politics and industry has discussed green hydrogen as one of the carbon-zero energy sources of the future. Besides many other countries, Germany formulates clear goals for the energy transition…

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Understanding coupled fluid transport for de-risking geological carbon and hydrogen storage
2023
Andreas Busch1

Carbon Capture and Storage (CCS) as well as subsurface energy storage in the form of hydrogen are measures to lower carbon emissions to the atmosphere. Large-scale implementation is underway, especially…

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Understanding morphological variation of the elbow joint in the Ursidae: Insights from 3D Geometric Morphometrics
2020
Samuel, Joseph Leeming (1,2), John, A Nyakatura (3) & Anneke, H van Heteren (2,4,5)

Variation in the skeletal morphology within the Carnivora has long been demonstrated as a predictor of a species’ ecological habits. The elbow joint in particular is a clear indicator of…

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Understanding Natural Geomorphological Processes Through Artificial Intelligence and Crowdsourced Data
2021
Thomas Y. Chen

As open source data becomes more ubiquitous, the involvement of citizen scientists has increased. The collection of large quantities of relevant data and respective labels through crowdsourcing on online platforms…

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Understanding reactions and transport in porous and fractured media – from rock analytics to predictive modelling
2021
Busch, Benjamin (1); Felder, Marita (2); Kühn, Michael (3)

The interaction of fluid and rock, and the properties of pores and their connectivity are among the main controls on the production and storage potential in clastic and carbonate rocks….

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Understanding the potential mobility of geogenic metals of concern from heavy mineral sands
2023
Christoforos Zamparas1, Teba Gil-Díaz1, Dieter Schild2, Elisabeth Eiche1

Iron oxide and hydroxide minerals are widespread in many aquatic environments and as such, can determine the fate of several metals of concern. Their role on metal mobility is generally…

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Unexpected high amounts of H2 produced during serpentinization at magma-poor rifted margins
2021
Elmar Albers1, Wolfgang Bach1,2, Marta Pérez-Gussinyé1,2, Catherine McCammon3, Thomas Frederichs1,2

At magma-poor rifted margins, serpentinization of lherzolitic mantle rocks releases molecular hydrogen (H2) that supports chemosynthesis-based deep life. Until now, however, H2 fluxes in these systems remain largely unquantified. To…

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UNFC – a tool the scientific community should be aware of
2023
Antje Wittenberg1, Sören Henning1, Jochen Kolb2

Fieldwork, sampling and analysis are tasks that most geoscientists enjoy, whether they are aspiring young scientists or experienced field geologists. Some of the activities arouse curious interest others are viewed…

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UNFC resources reporting code and national mineral resources accounting
2021
Janne Hokka, Pasi Eilu

Government organisations compile mineral resource data for national resource accounting. The information is collected and used in research, planning of mineral exploration, and in decision making on national and EU…

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Unique islets in SE Asia: How Holocene climate and sea-level controlled growth of a coral reef island
2021
Yannis Kappelmann1,2, Hildegard Westphal1,2, Dominik Kneer1, André Wizemann3, Thomas Mann4

Coral reef islands are unconsolidated landforms, composed of skeletal carbonate from surrounding reefs and related ecosystems. Facing the predicted rise of sea-level and a changing environment in the next decades,…

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Unraveling orogenic processes through U–Pb garnet petrochronology
2022
Horst Marschall1, Gerdes Axel1, Millonig Leo1, Albert Richard1, Beranoaguirre Aratz2, Hezel Dominik1

Orogenic processes typically proceed through a number of tectonic stages in which rocks are subjected to burial, heating, exhumation and cooling. The rates and durations of the prograde stages are…

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Unraveling sub-seismic interwell-scale facies heterogeneity of Late Jurassic Arab D Member – Clues from outcrop analogue study to develop high-resolution reservoir models
2020
Ward Teertstra (1), Guido Hoetz (2)

Anhydrites Carbonates of the Leine formation, the third evaporitic cycle of the Zechstein group, are widely distributed in the Southern Permian basin. These strata are often drilled through by wells…

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Unraveling Zechstein 3 Anhydrite Structuration and possible implications for Geo-Drilling Hazards
2020
Ward Teertstra (1) & Guido Hoetz (2)

Anhydrites Carbonates of the Leine formation, the third evaporitic cycle of the Zechstein group, are widely distributed in the Southern Permian basin. These strata are often drilled through by wells…

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Unusual IOA deposit associated with carbonatite in South Morocco: Mineralogy, geochemistry and REE-Nb-Ta mineralization
2022
Rachid Benaouda1, Dennis Kraemer2, Maria Sitnikova2, Michael Bau1

Iron oxide-apatite (IOA) deposits are known to be closely associated with silicate igneous rocks. However, a recent study in the Oulad Dlim massif (South Morocco) revealed the first occurrence of…

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Updating the depth map of the base Quaternary in Saxony-Anhalt
2023
Simon Jagemann1, Christian Olaf Müller2

Continuously growing demands for exploitation and storage in the near subsurface require up to date information on the setting of the unconsolidated Cenozoic rocks. Of special relevance are depth information…

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Upper Ediacaran carbonates on the Digermulen Peninsula, Finnmark, Arctic Norway: insights into syn- to post-depositional processes at the edge of Baltica
2023
Guido Meinhold1, Sören Jensen2, Magne Høyberget3, Arzu Arslan1, Anette E. S. Högström4, Jan Ove R. Ebbestad5, Teodoro Palacios2, Heda Agić6, Wendy L. Taylor7

The Digermulen Peninsula in eastern Finnmark has attracted renewed research interest in recent years due to discoveries of new Ediacara-type fossils, marking the rise of macroscopic life on Earth. The…

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Upper Rhine Graben: Deciphering a geothermal fluid system and its raw material potential
2023
Michèle Jungmann1, Benjamin F. Walter1, Elisabeth Eiche1, Jochen Kolb1

In the context of the energy and mobility transition, operators of geothermal power plants and associated industries spotlight the potential to combine the production of sustainable energy with the extraction…

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Urban exploration using Distributed Acoustic Sensing (DAS)
2021
Wollin, Christopher (1); Wüstefeld, Andreas (2); Krawczyk, Charlotte (1)

In contrast to traditional point-like seismometers, Distributed Accoustic Sensing (DAS) can probe the seismic wavefield along a one-dimensional trajectory at unprecedented spatial density over very long arc lengths and at…

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Use of three-dimensional implicit geological modeling to assist groundwater management of a karst aquifer
2021
Fernando Mazo D'Affonseca1,2, Olaf Cirpka2, Michael Finkel2

Although 3-D geological modeling has been mostly employed in the prospection and exploitation of ores, oil and gas, its importance in the field of groundwater resources management is considerably increasing….

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Using Artificial Intelligence for Disaster Management Providing Relief
2020
Niteesh Kumar Upadhyay (1) & Rathee Mahak (2)

We have seen drastic growth of Artificial Intelligence in the past few years and what seemed to be a distant dream earlier is now becoming a reality. Though there are…

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Using artificial intelligence to improve soil maps and geohazard mitigation efforts at state level
2023
Michael Blaschek1, Alexandra Kölbl1, Kurt Rilling1, Wolfgang Fleck1

Both the sustainable use of our resources and the prevention of geohazards requires reliable information about the spatial distribution of soil and geological properties. Since direct measurements are costly, artificial…

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Using Collaborative Augmented Reality to improve Communication of 3D Geological Concepts in Education
Björn Wieczoreck

Introducing concepts of 3D geology to students can be difficult. While 2D geological maps and pictures are well supplemented by 3D animations and movies in presentation slides, for most students,…

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Using Laser-Diffraction Grain-Size Analysis and End-Member Modelling Analysis (EMMA) to understand laminar to turbulent flow transitions in deep-water systems
2023
Hannah Louise Brooks1, Yvonne Therese Spychala2, Elisabeth Steel3

Hybrid beds or linked debrites are deposits that form under bi- or tri-partite flow conditions, involving transitions from turbulent to laminar flow conditions. Often, hybrid beds occur with distal or…

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Using mineral magnetics to track migration in the Bittern and Pict Fields, Central North Sea
2021
Maryam Ahmed Abdulkarim, Adrian Muxworthy, Alastair Fraser, Martin Neumaier

Minerals magnetics has been proposed as a means of improving our understanding of petroleum systems. We have carried out extensive rock magnetic experiments on core samples from the Tertiary reservoir…

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Using Novel Geochemical Proxies to Correlate the Volcanic Atmospheric Input of the North Atlantic Igneous Province (NAIP) at the Paleocene – Eocene Thermal Maximum (PETM)
2022
Nils Björn Baumann1, Marcel Regelous1, Anette Regelous1, Thierry Adatte2, Nicolas Thibault3, Karsten Haase1

Large Igneous Provinces (LIPs) have caused significant environmental perturbations, including global warming and oceanic anoxia. At least five mass extinction events throughout Earth’s history temporally coincide with the occurrence of…

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Using structural frames to build complex 3D geological models in LoopStructural
2023
Lachlan Grose1, Laurent Ailleres1, Gautier Laurent2, Fernanda Alvarado-Neves1, Angela Afonso Rodrigues1

In order to transition to more sustainable technologies, we as society need to improve our ability to find and manage natural resources. One of the biggest challenges for managing natural…

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Utilising magnetic minerals to track and identify hydrocarbon migration pathways and source regions: a case study on the Beatrice Field, Inner Moray Firth, UK North Sea
2021
Joseph Richard Perkins, Adrian Muxworthy, Al Fraser

Recent studies at Imperial College London have demonstrated that variations in magnetic mineralogy can be used to help track and quantify hydrocarbon migration. This work has built on past studies…

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V2RhoT_gibbs: a tool for conversion of seismic velocity to temperature and density in a self-consistent thermodynamic manner
2023
Ajay Kumar1, Judith Bott1, Magdalena Scheck-Wenderoth2

Seismic tomography provides important data to understand the physical properties (temperature, density) of the lithosphere and upper mantle. These physical properties are crucial for understanding e.g., strain localization, geothermal potential….

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V3Geo: A platform for sharing virtual 3D geoscience models
2020
Simon John Buckley (1), John Anthony Howell (2), Nicole Naumann (1), Kari Ringdal (1), Joris Vanbiervliet (1), Bowei Tong (1), Conor Lewis (1), Gail Maxwell (2) & Magda Chmielewska (2)

V3Geo is a new cloud-based repository for virtual 3D models in geoscience. It allows storage, search and viewing of 3D models commonly collected using photogrammetry, lidar or other laboratory-based 3D…

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Variscides everywhere? Multi-stage sedimentary recycling in Central Europe
2023
Johannes Zieger1, Mandy Zieger-Hofmann1, Andreas Gärtner1, Jessica Haschke1, Ulf Linnemann1

We used original detrital zircon morphology, trace element, and U-Pb age data obtained from Upper Rotliegend II strata (Upper Permian) to reveal sedimentary fluxes within the Central German Basin. Understanding…

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Veins as indicators of geological processes
2021
Quandt, Dennis (1); Kurz, Walter (2)

Veins are common structures in rocks and occur in different geological settings ranging from continental to oceanic crustal environments. They form by mineral precipitation from a fluid phase within a…

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Venting induced by magma-sediment interaction at Jøtul field – first discovery of hydrothermal seafloor venting along the 500-km-long Knipovich spreading ridge
2023
Gerhard Bohrmann1, Katharina Streuff2, Miriam Römer1, Stig-Morton Knutsen3, Daniel Smrzka4, Jan Kleint2, Aaron Röhler2, Thomas Pape1, Nils Rune Sandstå3, Charlotte Kleint2, Christian Hansen1, Wolfgang Bach1

During expedition MSM109 in July 2022, a new hydrothermal vent field was discovered, which is the first active field found along the 500-km-long ultra-slow spreading Knipovich Ridge. The so-called Jøtul…

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VerLaPro – a 3D model of the shallow Paleozoic subsurface in the southern Ruhr Area
2021
Dirk Kaufmann1, Christian Rakers1, Bernd Linder1, Stefan Mengede2, Karsten Schaefer2, Daniel Wagener2, Martin Isaac2

For decades the Ruhr Area in western Germany was dominated by extensive coal mining. Today, relicts of abandoned mines and the near-surface cavities are a hazard factor, for example at…

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Virtual field trip to Late Jurassic
2021
Peter Braesicke1,5, Roland Bertelmann2,5, Jan Bumberger3,5, Sören Lorenz4,5

Digitalisation and FAIR data are overarching elements in the Helmholtz Research Field Earth and Environment (RF E&E) Program-Oriented Funding Phase IV (PoF IV). Already in the transition years from PoF…

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Virtual field trip to Late Jurassic Carbonates of Central Saudi Arabia
2020
Pankaj Khanna, Ahmad Ihsan Ramdani, Gaurav Siddharth Gairola & Volker Vahrenkamp

Late Jurassic carbonates of Saudi Arabia contain some of the the world’s most prolific oil-producing strata in super giant reservoirs. Small scale stratigraphic architecture and associated property and flow heterogeneities…

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Virtual field trip to Late Jurassic Hanifa Formation of the Central Saudi Arabia
2021
Pankaj Khanna, Ahmad Ihsan Ramdani, Teyyuba Adigozalova, Gaurav Gariola, Volker Vahrenkamp

Tuwaiq Mountain Escarpment in the Central Saudi Arabia exposes the Late Jurassic carbonates, which are one of the world’s most prolific oil-producing strata in the subsurface. The outcrops provide a…

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Virtual field trip to seismic scale outcrops of the Triassic, Edgeøya, Svalbard
2020
Simon John Buckley (1), Kari Ringdal (1), Isabelle Lecomte (2), Ingrid M. Anell (3) & Alvar Braathen (3)

Large-scale cliff sections on Edgeøya in the remote eastern part of the Svalbard Archipelago (Spitsbergen) comprise mostly Triassic sedimentary successions. These outcrops expose formations found on the offshore Barents Shelf,…

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Virtual Field Trips – Geological dive around the globe
2021
Khanna, Pankaj

This session will showcase geological field trips to some of the most spectacular outcrops around the world. Virtual Outcrops provide an opportunity to a larger audience to visualize and learn…

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Virtual field trips – a powerful tool to complement teaching in earth sciences
2022
Dominik Mock1, Colin Fischer2, Lilian Beckmann3, Monika Sester4, François Holtz4

The corona pandemic faced earth science lecturers and students around the world with an essential conflict: field trips as practical parts of their studies were strictly reduced to a minimum…

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Virtual Fieldtrips in Learning & Development: Geology 4 Non-Geologists – North Sea petroleum systems and reservoir geology, Dorset coast, UK
2020
Jürgen Grötsch (1), Young Kon Yong (2) & Maren Kleemeyer (2)

Training courses in industry are being moved from face-to-face events to virtual equivalents for cost reasons but also for convenience, ie availability of online training where and when needed. This…

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Virtual Fieldtrips in Shell Learning and Development: Carbonates in Oman
2020
Mia Steenwinkel (1) & Young Kon Yong (2)

Training courses in the industry are changing from face-to-face events to virtual equivalents. Although real-life field experience is missing in virtual trips, the main benefit is the availability of online…

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Virtual fieldwork in the Sorbas basin, Betic Cordillera, SE Spain
2020
Liviu Matenco, Meije Sibbel & Hans de Bresser

As part of the Earth Sciences curriculum at Utrecht university, first year master degree students get the option to join a Field Research Instruction Geology course in SE Spain. This…

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VIRTUAL GEOLOGY FROM THE LAB TO THE FIELD
2020
Meije Sibbel, Ernst Willingshofer, Meije Sibbel, Richard Wessels & Oliver Plümper

In this virtual fieldtrip we will review and discuss three case studies carried out at Utrecht University utilizing virtual reality (VR) and virtual field observations (VFO) across a range of…

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Virtual Outcrop Models – Chances and Challenges for Geoscience School Education
2021
Sylke Hlawatsch

Geoscience has a key role in adressing the challenges of sustainability, yet in German schools a regular subject such as Earth sciences does not exist. Teacher feel uncomfortable with teaching…

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Visual KARSYS – a web service for modelling karst aquifers in 3D
2021
Arnauld Malard1, Pierre-Yves Jeannin1, Manfred Vogel2, Simon Lopez3

A 3D web-service has been developed for the modeling and for the management of karst aquifers and related groundwater resources. Visual KARSYS allows users to build explicit models of karst…

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Visualisation of microbial growth and distribution in real rock pores during underground hydrogen storage
2023
Chaojie Cheng1, Benjamin Busch1, Martin Krueger2, Anja Dohrmann2, Martin von Dollen1, Christoph Hilgers1

Hydrogen, converted from renewable energy sources, provides a feasible road map to balance the daily up to seasonally fluctuation between renewable energy supply and consumer demand. Underground hydrogen storage (UHS)…

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Visualizing blind faults with shear-wave seismic reflection surveys: a case study from the Sorgenfrei-Tornquist Zone, northern Denmark
2023
Christian Brandes1, Ulrich Polom2, Jutta Winsemann1, Sandersen Peter3

So-called ‘blind’ faults, which are not visible at the Earth’s surface may be the source of unexpected and potentially disastrous earthquakes and thus represent a major hazard, especially in urban…

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Vital effects in biogenic carbonates in triple oxygen isotope space
2023
Daniel Herwartz1, Swea Klipsch1, David Bajnai2, Jacek Raddaz3, Amelia Davies3, Eberhard Gischler3, Jens Fiebig3, Andreas Pack2

Carbonate δ18O and Δ47 are used to reconstruct paleotemperatures. Because biogenic carbonate does not form in full equilibrium with seawater, species-specific temperature calibration curves are required for accurate temperature estimates….

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Vital effects on lithium isotope fractionation – Insights from Recent and Albian molluscs
2022
Vanessa Schlidt1, René Hoffmann2, David Evans1, Hans-Michael Seitz1, Silke Voigt1

Molluscs have great potential as geochemical archive due to their wide spatial and temporal abundance. For lithium isotope compositions (δ7Li), a proxy for reconstructing weathering intensity, they would offer a…

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Volcanic structures and magmatic evolution of the Vesteris Seamount, Greenland Basin
2021
Katharina Anna Unger Moreno1,5, Janis Thal1, Wolfgang Bach1,2, Christoph Beier3, Karsten Matthias Haase4

The solitary intraplate volcano Vesteris Seamount is located in the Central Greenland Basin and rises around 3000 m above the seafloor with a total eruptive volume of ~500 km3. Newly…

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Volcanites of MORB and WPB character in the evaporitic Permian Haselgebirge Formation (Eastern Alps, Austria) and possible tectonic implications
2021
Christoph Leitner1, Friedrich Finger1, H. Albert Gilg2

The evaporitic Haselgebirge Formation hosts in many places small occurrences of basaltic rocks. The geochemistry of these basalts can potentially provide information about the tectonic setting of the Haselgebirge Formation…

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Wadi deposits of the Rotliegend revisited – key to unravel reservoir geometries in the Base Rotliegend of the Dutch-German border area
2020
Marita Felder (1), Camille Burgess (2) & Bert Clever(2)

An old play has recently been extended across the border from Germany into the Netherlands, an area previously thought to be barren of reservoir sandstones. The combination of core evaluation…

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Wall rock contamination and mineralogical modifications in carbonatite dykes of the Palabora Complex, South Africa
2021
R. Johannes Giebel1,2, Benjamin F. Walter3, Michael A.W. Marks4, Gregor Markl4

Contamination of carbonatite melts is often neglected due to a fast magma ascent and low liquidus temperatures. However, increased silicate mineral formation observed in numerous carbonatite occurrences world-wide requires an…

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Was ist die Öffentlichkeit
2023
Jonas Grutzpalk1

Ein Museum will eine Öffentlichkeit erreichen. Doch das ist leichter gesagt als getan, denn aus soziologischer Sicht zeigt sich die Öffentlichkeit nicht als monolithischer Block, sondern als ein Konglomerat aus…

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Water speciation in partially deuterated hydrous stishovite at 450 °C and 9 GPa
2022
Nico Kueter1, Kara Brugman2, Francesca Miozzi2, George D. Cody2, Michael J. Walter2, Jing Yang2, Timothy A. Strobel2

The high-pressure SiO2 polymorph stishovite is a major constituent of subducted oceanic crust and is stable over a wide range of pressures and temperatures ranging from the lower upper mantle…

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Weathering geochronology of a deep (> 120 m) lateritic profile in northern Brazil
2022
Beatrix Heller1, Thierry Allard2, Caroline Sanchez3, Guilherme Taitson Bueno4, Jean-Yves Roig5, Cécile Gautheron3

Tropical weathering leads to the formation of deep weathering profiles called laterites. The Guiana shield has been tectonically stable and in tropical latitudes supposedly since the Cretaceous, allowing the formation…

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Well measured environmental interventions
2023
Franziska Wende1, Tim Gottschlag1

For 60 years, Germany’s National Metrology Institute Physikalisch-Technische Bundesanstalt (PTB) has been promoting the improvement of metrology systems and quality infrastructure within its partner countries in the Global South. Metrology…

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What (probably) controls the size of mineral deposits
2022
Cyril Chelle-Michou1

Theoretical, conceptual, technical, and analytical advances over the last century have allowed not only to develop and refine models for the formation of mineral deposits, but also to develop cost-effective…

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What beachrock can and can not do as a sea level indicator: setting out to refine the model of beachrock facies interpretation based on examples from Oman and South Africa
2022
Michaela Falkenroth1, Andrew Green2, Andrew Cooper3, Gösta Hoffmann4

Beachrocks are coastal sediments that are lithified through the precipitation of carbonate cements. It is widely acknowledged that lithofacies in beachrocks are variable and their interpretation is useful when using…

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What does the temperature dependent magnetic susceptibility tell us about the depositional history of Lake Bosumtwi (Ghana)?
2022
Mathias Vinnepand1, Christian Zeeden1, Thomas Asante1, Stefanie Kaboth-Bahr2, William Gosling3, Jochem Kück4, Thomas Wonigk1

Lacustrine archives may provide valuable point-data for studying past climatic and environmental changes. Lake Bosumtwi (Ghana) is of special interest as it recorded such oscillations throughout the last 1.07 million…

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What factors control the development of moats and their associated contourite drifts?
2021
Henriette Wilckens1, Elda Miramontes1, Tilmann Schwenk1, Thomas Lüdmann2, Christian Betzler2, Javier Hernandez-Molina3, Volkhard Spieß1, Antonio Cattaneo4

The interaction of sedimentary systems with oceanographic processes in deep-water environments is still not well understood, despite its importance for improving paleoreconstructions and for understanding source-to-sink sediment transport. The aim…

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Where and why: using a structural framework to contextualise and improve the understanding of processes leading to mineral occurrences
2020
Renata Barros (1), Shandro Mellaerts (2), Michiel Van Herck (2) & Kris Piessens (1)

The societal development towards climate neutrality and the ambition for economic growth and well-being in Europe rely on mineral raw materials. Mineral occurrences can be seen as manifestations of specific…

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Which tools did stonemasons from the Late Bronze Age use to carve stelae of hard rocks from the Iberian Peninsula?
2023
Rafael Ferreiro Mählmann1, Ralph Araque Gonzalez2, Bastian Asmus3, Pablo Paniego Diaz4, Alexander Richter5, Giuseppe Vintrici2, Pedro Baptista6, Dirk Scheuvens1

This research will put emphasis on a multidisciplinary approach to examine the Iberian stelae of the Late Bronze Age (c. 1200-800 BC) involving petrographic, geochemical, and metallurgic analyses, complemented by…

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Why are fluid-rock reactions crucial for sustainably utilizing geotechnical potentials of the deep subsurface, and to tackle future energy challenges?
2021
Sebastian Fischer

In recent years, the deep geological subsurface gained more and more attention as it offers various reservoirs potentially applicable for different geotechnical use options, e.g. deep geothermal energy, geological storage…

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Why should researchers bother to use domain-specific data repositories?
2023
Florian Ott1, Kirsten Elger1, Simone Frenzel1

Domain-specific research data repositories are digital archives that manage and preserve research data (and/or software) from specific scientific disciplines. These repositories are designed to meet the unique needs of researchers…

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Wie alt ist das eigentlich? Ein neues Exponat erklärt Plattenkalk-Forschung im Jura-Museum
2023
Christina Ifrim1

Das Jura-Museum widmet sich den Fossilien im weltberühmten Solnhofener Plattenkalk. Hier wird ein neues Exponat vorgestellt, dass sich den Solnhofener Plattenkalken über die Fossilien hinaus widmet. Es handelt sich um…

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Wind turbine signatures from long distances at the Gräfenberg Array
2021
Klaus Stammler, Lars Ceranna

Since 2012 many wind turbines have been installed on the Frankonian Jura and a number of them also in the vicinity of stations of the Gräfenberg array (GRF), consisting of…

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With World-Class Graphite, Pula Proves African Jr’s as Innovative & Ethical Influences
2021
Mary Stith

With a world-class graphite project in Tanzania (East Africa), The Pula Group, LLC is committed to a greener future. The high-quality graphite mineralization includes jumbo flakes developed to a depth…

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Working on the roads: improving the infrastructure for research into geo-societal challenges
2021
Elger, Kirsten (1); Curdt, Constanze (2); Pijnenburg, Ronald (3)

In response to the growing geo-societal challenges of our densely populated planet, current research frequently requires convergence of multiple research disciplines, and optimized use of openly available data, research facilities…

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X-ray absorption spectroscopy study of Mn reference compounds for the identification and quantification of Mn species in soils
2021
Teresa Zahoransky1, Anna V. Wegorzewski2, Winnie Huong1, Christian Mikutta1

Chemical reactivity, mobility, and bioavailability of manganese (Mn) in the environment depend crucially on its speciation. Despite the broad application of X-ray absorption spectroscopy (XAS) to environmental samples, studies covering…

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X-ray emission setup to study electronic structure of iron bearing compounds in situ at high pressure and high temperature
2022
Nicola Thiering1, Christian Albers1, Robin Sakrowski1, Max Wilke2, Johannes Kaa3, Hlynur Gretarsson4, Martin Sundermann4, Metin Tolan5, Christian Sternemann1

The determination of iron-bearing compounds’ electronic structure under high pressure and temperature (HPHT) conditions is pivotal to understand the chemistry, physics and dynamics of the Earth’s interior [1,2]. We present…

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Young Scientist Session
2021
Arndt, Iris (1); Schubert, Thora (2); Sawall, Joshua (3)

If you are a young scientist, this session provides the opportunity to present your work among peers. We will consider everybody without PhD or with a recently finished PhD project…

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Zircon Raman dating: Age calculation and data valuation
2021
Birk Härtel, Raymond Jonckheere, Lothar Ratschbacher

Zircon Raman dating is a debated concept in thermochronology. It is based on the disruption of the zircon lattice by α-disintegration of 238U, 235U, 232Th, and their daughter nuclides. This…

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Zircon Raman thermochronology in practice: first results and implications
2022
Birk Härtel1, Raymond Jonckheere2, Lothar Ratschbacher2

Zircon Raman dating rests on measurements of (1) self-irradiation damage in the zircon lattice from the Raman bandwidth (FWHM), and (2) the U and Th concentrations in the same volume….

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Zircon U-Pb-Hf isotope systematics of southern Black Forest gneiss units (Germany) – implications for the Pre-Variscan evolution of Central Europe
2023
Armin Zeh1, Magdalena Zimmermann1, Kirsten Drüppel1, Richard Albert Roper2, Axel Gerdes2

We present the first systematic U-Pb-Hf isotope data of detrital zircon grains from gneiss units of the southern Black Forest, preserving different stages of the pre-, syn- and post-Cadomian evolution….

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µ-EDXRF based classification of chromites. A quick approach for testing hand specimen and drill cores
2021
Dieter Rammlmair, Wilhelm Nikonow

Chromites from ophiolites and layered intrusions show a wide variety in Cr#, Mg# and Cr/Fe ratios. These ratios provide information on the genesis of the chromite deposits e.g. the place…

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