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Multiple S-isotopic evidence for episodic shoaling of anoxic water during Late Permian mass extinction.
Nat Commun. 2011 Feb 22; 2:210.NC

Abstract

Global fossil data show that profound biodiversity loss preceded the final catastrophe that killed nearly 90% marine species on a global scale at the end of the Permian. Many hypotheses have been proposed to explain this extinction and yet still remain greatly debated. Here, we report analyses of all four sulphur isotopes ((32)S, (33)S, (34)S and (36)S) for pyrites in sedimentary rocks from the Meishan section in South China. We observe a sulphur isotope signal (negative δ(34)S with negative Δ(33)S) that may have resulted from limitation of sulphate supply, which may be linked to a near shutdown of bioturbation during shoaling of anoxic water. These results indicate that episodic shoaling of anoxic water may have contributed to the profound biodiversity crisis before the final catastrophe. Our data suggest a prolonged deterioration of oceanic environments during the Late Permian mass extinction.

Authors+Show Affiliations

CAS Key Laboratory of Crust-Mantle Materials and Environments, School of Earth and Space Sciences, University of Science and Technology of China, Hefei 230026, China. yashen@ustc.edu.cnNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

21343928

Citation

Shen, Yanan, et al. "Multiple S-isotopic Evidence for Episodic Shoaling of Anoxic Water During Late Permian Mass Extinction." Nature Communications, vol. 2, 2011, p. 210.
Shen Y, Farquhar J, Zhang H, et al. Multiple S-isotopic evidence for episodic shoaling of anoxic water during Late Permian mass extinction. Nat Commun. 2011;2:210.
Shen, Y., Farquhar, J., Zhang, H., Masterson, A., Zhang, T., & Wing, B. A. (2011). Multiple S-isotopic evidence for episodic shoaling of anoxic water during Late Permian mass extinction. Nature Communications, 2, 210. https://doi.org/10.1038/ncomms1217
Shen Y, et al. Multiple S-isotopic Evidence for Episodic Shoaling of Anoxic Water During Late Permian Mass Extinction. Nat Commun. 2011 Feb 22;2:210. PubMed PMID: 21343928.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Multiple S-isotopic evidence for episodic shoaling of anoxic water during Late Permian mass extinction. AU - Shen,Yanan, AU - Farquhar,James, AU - Zhang,Hua, AU - Masterson,Andrew, AU - Zhang,Tonggang, AU - Wing,Boswell A, Y1 - 2011/02/22/ PY - 2010/11/29/received PY - 2011/01/26/accepted PY - 2011/2/24/entrez PY - 2011/2/24/pubmed PY - 2011/10/19/medline SP - 210 EP - 210 JF - Nature communications JO - Nat Commun VL - 2 N2 - Global fossil data show that profound biodiversity loss preceded the final catastrophe that killed nearly 90% marine species on a global scale at the end of the Permian. Many hypotheses have been proposed to explain this extinction and yet still remain greatly debated. Here, we report analyses of all four sulphur isotopes ((32)S, (33)S, (34)S and (36)S) for pyrites in sedimentary rocks from the Meishan section in South China. We observe a sulphur isotope signal (negative δ(34)S with negative Δ(33)S) that may have resulted from limitation of sulphate supply, which may be linked to a near shutdown of bioturbation during shoaling of anoxic water. These results indicate that episodic shoaling of anoxic water may have contributed to the profound biodiversity crisis before the final catastrophe. Our data suggest a prolonged deterioration of oceanic environments during the Late Permian mass extinction. SN - 2041-1723 UR - https://www.unboundmedicine.com/medline/citation/21343928/Multiple_S_isotopic_evidence_for_episodic_shoaling_of_anoxic_water_during_Late_Permian_mass_extinction_ L2 - https://doi.org/10.1038/ncomms1217 DB - PRIME DP - Unbound Medicine ER -