-
- Kliti Grice
- Curtin University of Technology, Perth, Australia.
-
- Changqun Cao
- Curtin University of Technology, Perth, Australia.
-
- Gordon D. Love
- Curtin University of Technology, Perth, Australia.
-
- Michael E. Böttcher
- Curtin University of Technology, Perth, Australia.
-
- Richard J. Twitchett
- Curtin University of Technology, Perth, Australia.
-
- Emmanuelle Grosjean
- Curtin University of Technology, Perth, Australia.
-
- Roger E. Summons
- Curtin University of Technology, Perth, Australia.
-
- Steven C. Turgeon
- Curtin University of Technology, Perth, Australia.
-
- William Dunning
- Curtin University of Technology, Perth, Australia.
-
- Yugan Jin
- Curtin University of Technology, Perth, Australia.
この論文をさがす
説明
<jats:p>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.</jats:p>
収録刊行物
-
- Science
-
Science 307 (5710), 706-709, 2005-02-04
American Association for the Advancement of Science (AAAS)