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Advances in terrestrial and marine carbonate archives – novel proxies and innovative techniques to decipher past climate variability

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 regime and the influence of anthropogenically induced global warming. In the last decades, the diversity of geochemical proxies available in carbonate palaeoclimate archives have emerged rapidly and significantly. Trace elements and traditional stable isotopes of oxygen and carbon have been supplemented with numerous non-traditional stable isotope systems such as B, Li, Ba, Mg, Ca, Sr, U, N, Δ17O, Δ47.In addition, the study of organic matter in carbonaceous archives and investigation of different biomarkers has massively expanded over the last years. Most importantly, recent developments in analytical techniques allow for improved precision, unprecedented resolution or smallest sample amounts. Furthermore, sophisticated isotope enabled diffusion-reaction models as well as high resolution experimental approaches significantly improved our understanding of the underlying fractionation processes. All these novel geochemical proxies and innovative methods open new advances towards qualitative and quantitative reconstruction in terrestrial and marine palaeoclimate studies and allow for multi-proxy approaches at different spatial and temporal scales. This session aims to bring together researchers from different fields of palaeoclimate research to share their knowledge, and allow inter-disciplinary exchange in order to apply these proxies to other palaeoclimate archives. We especially invite early career researcher to submit their abstracts to this interdisciplinary session. This will inspire both young researcher as well as senior scientists to apply new multi-proxy research approaches to study past climate variability.  


Riechelmann, Dana Felicitas Christine (1); Hansen, Maximilian (1); Warken, Sophie (2); Weber, Michael (1)
1: Johannes Gutenberg University Mainz, Germany; 2: Heidelberg University, Germany
GeoKarlsruhe 2021