Carbon, sulfur and O2 across the Permian–Triassic boundary |
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| Authors: | Robert A Berner |
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| Institution: | Department of Geology and Geophysics, Yale University, New Haven, CT 06520-8109, United States |
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| Abstract: | A model for the carbon and sulfur cycles across the Permian–Triassic boundary has been constructed from carbon and sulfur isotopic data. Results indicate a drop in global organic matter burial, the formation of an anoxic deep ocean, and a large drop in atmospheric oxygen over the time span 270 to 240 Ma. Much of these changes were probably due to a drop in terrestrial productivity and preservation and an increase in global aridity. |
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| Keywords: | Permo-triassic extinction Carbon cycle Sulfur cycle Atmospheric oxygen |
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