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An 80-million-year sulphur isotope record of pyrite burial over the Permian–Triassic

Salisbury, Jack; Gröcke, Darren R.; Cheung, H.D.R. Ashleigh; Kump, Lee R.; McKie, Tom; Ruffell, Alastair

An 80-million-year sulphur isotope record of pyrite burial over the Permian–Triassic Thumbnail


Authors

Jack Salisbury jack.salisbury@durham.ac.uk
PGR Student Doctor of Philosophy

H.D.R. Ashleigh Cheung

Lee R. Kump

Tom McKie

Alastair Ruffell



Abstract

Despite the extensive use of sulphur isotope ratios (δ34S) for understanding ancient biogeochemical cycles, many studies focus on specific time-points of interest, such as the end-Permian mass extinction (EPME). We have generated an 80 million-year Permian–Triassic δ34Sevap curve from the Staithes S-20 borehole, Yorkshire, England. The Staithes δ34Sevap record replicates the major features of the global curve, while confirming a new excursion at the Olenekian/Anisian boundary at ~ 247 million years ago. We incorporate the resultant δ34Sevap curve into a sulphur isotope box model. Our modelling approach reveals three significant pyrite burial events (i.e. PBEs) in the Triassic. In particular, it predicts a significant biogeochemical response across the EPME, resulting in a substantial increase in pyrite burial, possibly driven by Siberian Traps volcanism. Our model suggests that after ~ 10 million years pyrite burial achieves relative long-term stability until the latest Triassic.

Citation

Salisbury, J., Gröcke, D. R., Cheung, H. A., Kump, L. R., McKie, T., & Ruffell, A. (2022). An 80-million-year sulphur isotope record of pyrite burial over the Permian–Triassic. Scientific Reports, 12, https://doi.org/10.1038/s41598-022-21542-4

Journal Article Type Article
Acceptance Date Sep 28, 2022
Online Publication Date Oct 17, 2022
Publication Date 2022
Deposit Date Dec 22, 2022
Publicly Available Date Dec 22, 2022
Journal Scientific Reports
Electronic ISSN 2045-2322
Publisher Nature Research
Peer Reviewed Peer Reviewed
Volume 12
DOI https://doi.org/10.1038/s41598-022-21542-4

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http://creativecommons.org/licenses/by/4.0/

Copyright Statement
This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.





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