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Project
Death from below: how linking brines, anoxia, mutation, and stratabound ore could solve the enigma of Devonian mass extinction and the World’s REE crisis
Here, we test new kill-mechanisms for iconic Devonian mass-extinctions. Our nascent hypothesis suggests that formation of exhalative (sedex) Zn-Pb-Au deposits resulted in global Ocean Anoxic Events. Our novel proxy measures the geochemistry of severely malformed organic-walled fossil plankton, coinciding with the extinctions. Tracing the heavy metal contamination and stratigraphy provides a new tool to pinpoint sedex and associated
REE deposits.
Date:1 Jan 2017 → 31 Dec 2022
Keywords:Ocean Anoxic Events, sedimentary exhalative deposits, Mass extinctions
Disciplines:Evolutionary biology, Biogeochemistry, Other chemical sciences, Geochronology, Other biological sciences, Palaeontology, Petrology, Mineralogy and crystallography, Exploration geochemistry, Geoarchaeology, Geochemistry, Other earth sciences not elsewhere classified, Natural resource management, Palaeoclimatology, Archaeology not elsewhere classified, Soil sciences, challenges and pollution not elsewhere classified, Geology, Stratigraphy, Oceanography