Photic zone euxinia during the Permian-Triassic superanoxic event

Kliti Grice; Changqun Cao; Gordon D. Love; Michael E. Böttcher; Richard J. Twitchett; Emmanuelle Grosjean; Roger E. Summons; Steven C. Turgeon; William Dunning; Yugan Jin

doi:10.1126/science.1104323

Photic zone euxinia during the Permian-Triassic superanoxic event

Kliti Grice^*, Changqun Cao, Gordon D. Love, Michael E. Böttcher, Richard J. Twitchett, Emmanuelle Grosjean, Roger E. Summons, Steven C. Turgeon, William Dunning, Yugan Jin

^*Corresponding author for this work

Research output: Contribution to journal › Article

538 Citations (Scopus)

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 photic-zone euxinic conditions suggests that sulfide toxicity was a driver of the extinction and a factor in the protracted recovery.

Original language	English
Pages (from-to)	706-709
Number of pages	4
Journal	Science
Volume	307
Issue number	5710
DOIs	https://doi.org/10.1126/science.1104323
Publication status	Published - 4 Feb 2005

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Grice, K., Cao, C., Love, G. D., Böttcher, M. E., Twitchett, R. J., Grosjean, E., ... Jin, Y. (2005). Photic zone euxinia during the Permian-Triassic superanoxic event. Science, 307(5710), 706-709. https://doi.org/10.1126/science.1104323

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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 photic-zone euxinic conditions suggests that sulfide toxicity was a driver of the extinction and a factor in the protracted recovery.",

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AU - Grice, Kliti

AU - Cao, Changqun

AU - Love, Gordon D.

AU - Böttcher, Michael E.

AU - Twitchett, Richard J.

AU - Grosjean, Emmanuelle

AU - Summons, Roger E.

AU - Turgeon, Steven C.

AU - Dunning, William

AU - Jin, Yugan

PY - 2005/2/4

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AB - 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 photic-zone euxinic conditions suggests that sulfide toxicity was a driver of the extinction and a factor in the protracted recovery.

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