Citation
Zhang, Guijie, et al. "Redox Chemistry Changes in the Panthalassic Ocean Linked to the end-Permian Mass Extinction and Delayed Early Triassic Biotic Recovery." Proceedings of the National Academy of Sciences of the United States of America, vol. 114, no. 8, 2017, pp. 1806-1810.
Zhang G, Zhang X, Hu D, et al. Redox chemistry changes in the Panthalassic Ocean linked to the end-Permian mass extinction and delayed Early Triassic biotic recovery. Proc Natl Acad Sci U S A. 2017;114(8):1806-1810.
Zhang, G., Zhang, X., Hu, D., Li, D., Algeo, T. J., Farquhar, J., Henderson, C. M., Qin, L., Shen, M., Shen, D., Schoepfer, S. D., Chen, K., & Shen, Y. (2017). Redox chemistry changes in the Panthalassic Ocean linked to the end-Permian mass extinction and delayed Early Triassic biotic recovery. Proceedings of the National Academy of Sciences of the United States of America, 114(8), 1806-1810. https://doi.org/10.1073/pnas.1610931114
Zhang G, et al. Redox Chemistry Changes in the Panthalassic Ocean Linked to the end-Permian Mass Extinction and Delayed Early Triassic Biotic Recovery. Proc Natl Acad Sci U S A. 2017 02 21;114(8):1806-1810. PubMed PMID: 28167796.
TY - JOUR
T1 - Redox chemistry changes in the Panthalassic Ocean linked to the end-Permian mass extinction and delayed Early Triassic biotic recovery.
AU - Zhang,Guijie,
AU - Zhang,Xiaolin,
AU - Hu,Dongping,
AU - Li,Dandan,
AU - Algeo,Thomas J,
AU - Farquhar,James,
AU - Henderson,Charles M,
AU - Qin,Liping,
AU - Shen,Megan,
AU - Shen,Danielle,
AU - Schoepfer,Shane D,
AU - Chen,Kefan,
AU - Shen,Yanan,
Y1 - 2017/02/06/
PY - 2017/2/9/pubmed
PY - 2018/4/13/medline
PY - 2017/2/8/entrez
KW - Panthalassic Ocean
KW - end-Permian mass extinction
KW - multiple sulfur isotopes
KW - sulfidic waters
SP - 1806
EP - 1810
JF - Proceedings of the National Academy of Sciences of the United States of America
JO - Proc Natl Acad Sci U S A
VL - 114
IS - 8
N2 - The end-Permian mass extinction represents the most severe biotic crisis for the last 540 million years, and the marine ecosystem recovery from this extinction was protracted, spanning the entirety of the Early Triassic and possibly longer. Numerous studies from the low-latitude Paleotethys and high-latitude Boreal oceans have examined the possible link between ocean chemistry changes and the end-Permian mass extinction. However, redox chemistry changes in the Panthalassic Ocean, comprising ∼85-90% of the global ocean area, remain under debate. Here, we report multiple S-isotopic data of pyrite from Upper Permian-Lower Triassic deep-sea sediments of the Panthalassic Ocean, now present in outcrops of western Canada and Japan. We find a sulfur isotope signal of negative Δ33S with either positive δ34S or negative δ34S that implies mixing of sulfide sulfur with different δ34S before, during, and after the end-Permian mass extinction. The precise coincidence of the negative Δ33S anomaly with the extinction horizon in western Canada suggests that shoaling of H2S-rich waters may have driven the end-Permian mass extinction. Our data also imply episodic euxinia and oscillations between sulfidic and oxic conditions during the earliest Triassic, providing evidence of a causal link between incursion of sulfidic waters and the delayed recovery of the marine ecosystem.
SN - 1091-6490
UR - https://www.unboundmedicine.com/medline/citation/28167796/Redox_chemistry_changes_in_the_Panthalassic_Ocean_linked_to_the_end_Permian_mass_extinction_and_delayed_Early_Triassic_biotic_recovery_
L2 - http://www.pnas.org/lookup/pmidlookup?view=long&pmid=28167796
DB - PRIME
DP - Unbound Medicine
ER -