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Carbonatites and alkaline rocks

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 raw materials, such as REE, Nb, P and F, to name a few. However, to understand how such deposits form, we need to understand how their rocks and mineral assemblages formed in space and time. Although our knowledge about the formation and mineralization as well as the magmatic and post-magmatic modification of carbonatites and alkaline rocks strongly improved over the last decades and the extraction of related raw materials could be steadily refined, there are still many open questions that need to be addressed. We encourage participants to submit and present their studies relating to carbonatites and alkaline rocks in this sub-session and to discuss and network their research. The scope of this session covers the formation, the ascent and the emplacement, but also the mineralization, differentiation and alteration of these unique rocks as well as their exploration, exploitation and processing. Experiments and numerical calculations are as welcome as field work studies and analytical investigations.  


Marks, Michael A.W. (1); Walter, Benjamin F. (2); Giebel, R. Johannes (3)
1: Universität Tübingen, Germany; 2: Karlsruhe Institute of Technology, Germany; 3: Technical University of Berlin, Germany / University of the Free State, South Africa
GeoKarlsruhe 2021