Photic Zone Euxinia During the Permian-Triassic Superanoxic Event
Curtin University · Max Planck Institute for Marine Microbiology · +4 more institutions
Abstract
Carbon and sulfur isotopic data, together with biomarker and iron speciation analyses of the Hovea-3 core that was drilled in the Perth Basin, Western Australia, indicate that euxinic conditions prevailed in the paleowater column during the Permian-Triassic superanoxic event. Biomarkers diagnostic for anoxygenic photosynthesis by Chlorobiaceae are particularly abundant at the boundary and into the Early Triassic. Similar conditions prevailed in the contemporaneous seas off South China. Our evidence for widespread photiczone euxinic conditions suggests that sulfide toxicity was a driver of the extinction and a factor in the protracted recovery.
Citation impact
- FWCI
- 76.75
- Percentile
- 100%
- References
- 25
Authors
10- KGKliti GriceCorresponding
Curtin University, Max Planck Institute for Marine Microbiology, Nanjing Institute of Geology and Paleontology, Massachusetts Institute of Technology, University of Plymouth
- CCChangqun Cao
Curtin University, Max Planck Institute for Marine Microbiology, Nanjing Institute of Geology and Paleontology, Massachusetts Institute of Technology, University of Plymouth
- GDGordon D. Love
Curtin University, Max Planck Institute for Marine Microbiology, Nanjing Institute of Geology and Paleontology, Massachusetts Institute of Technology, University of Plymouth
- MEMichael E. Böttcher
Max Planck Society, Curtin University, Max Planck Institute for Marine Microbiology, Nanjing Institute of Geology and Paleontology, Massachusetts Institute of Technology, University of Plymouth
- RJRichard J. Twitchett
Curtin University, Max Planck Institute for Marine Microbiology, Nanjing Institute of Geology and Paleontology, Massachusetts Institute of Technology, University of Plymouth
Topics & keywords
- Permian–Triassic extinction event
- Anoxygenic photosynthesis
- Geology
- Photic zone
- Extinction event
- Permian
- Paleontology
- Phanerozoic
- Life below water