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

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

Research output: Contribution to journalArticlepeer-review

1 Scopus citations


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.

Original languageEnglish (US)
Article number17370
JournalScientific reports
Issue number1
StatePublished - Dec 2022

All Science Journal Classification (ASJC) codes

  • General


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