Environmental Sciences
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Pictured: Dr. Harry Rowe and Dr. Arne Winguth
Dr. Winguth and Dr. Rowe will collaborate with Tom Algeo (University of Cincinnati), Katherine Freeman (Penn State University), Timothy Lyons (University of California-Riverside), and Brooks Ellwood (Lousiana State University) on investigating causes and dynamics of the largest mass extinction in Earth history, which occurred about 251 million years ago at the Permian-Triassic boundary. High-resolution chemostratigraphic studies of 19 marine boundary sections will be integrated with earth-system modeling in order to constrain the extent and intensity of Permo-Triassic deep-ocean anoxia, the patterns of upwelling of toxic deep-ocean waters onto shallow marine areas, and the relationship of these events to contemporaneous changes in seawater carbonate chemistry. This comprehensive study has the potential to lead to new insights on the causes of the largest environmental-ecological catastrophe in Earth history.