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

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

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)
38 Downloads (Pure)

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.
Original languageEnglish
Pages (from-to)1730-1734
Number of pages5
JournalScientific Reports
Volume12
DOIs
Publication statusPublished - 17 Oct 2022

Keywords

  • Article
  • /704/47/4112
  • /704/2151/209
  • /704/2151/213
  • /704/2151/3930
  • article

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