ArticleProceedings of the National Academy of Sciences of the United States of America2013
Influence of sulfate reduction rates on the Phanerozoic sulfur isotope record.
Article in Proceedings of the National Academy of Sciences of the United States of America, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 39 papers.
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39 citing papers in PubMed.
- Sedimentary conditions drive modern pyrite burial flux to exceed oxidation.Nature geoscience · 2026Article
- Molecular insights into the dynamic relationship between respiration rate and sulfur isotope effect.Applied and environmental microbiology · 2025Article
- Marine sulphate captures a Paleozoic transition to a modern terrestrial weathering environment.Nature communications · 2025Article
- Sulfur isotope anomalies in coal combustion: Applications to the present and early Earth environments.Proceedings of the National Academy of Sciences of the United States of America · 2024Article
- Deglacial volcanism and reoxygenation in the aftermath of the Sturtian Snowball Earth.Science advances · 2023Article
- What Controls the Sulfur Isotope Fractionation during Dissimilatory Sulfate Reduction?ACS environmental Au · 2023Review
- Upside down sulphate dynamics in a saline inland lake.Scientific reports · 2023Article
- An 80-million-year sulphur isotope record of pyrite burial over the Permian-Triassic.Scientific reports · 2022Article
- Pyrite mega-analysis reveals modes of anoxia through geological time.Science advances · 2022Article
- Sedimentary pyrite sulfur isotopes track the local dynamics of the Peruvian oxygen minimum zone.Nature communications · 2021Article
- Nitrogen isotope effects can be used to diagnose N transformations in wastewater anammox systems.Scientific reports · 2021Article
- Strong local, not global, controls on marine pyrite sulfur isotopes.Science advances · 2021Article
- Expanded Genomic Sampling Refines Current Understanding of the Distribution and Evolution of Sulfur Metabolisms in theFrontiers in microbiology · 2021Article
- Physiological, genomic, and sulfur isotopic characterization of methanol metabolism by Desulfovibrio carbinolicus.PloS one · 2021Article
- Volcanic controls on seawater sulfate over the past 120 million years.Proceedings of the National Academy of Sciences of the United States of America · 2020Article
- Oxygen isotope effects during microbial sulfate reduction: applications to sediment cell abundances.The ISME journal · 2020Article
- Triple oxygen isotope insight into terrestrial pyrite oxidation.Proceedings of the National Academy of Sciences of the United States of America · 2020Article
- Isotopic Fractionation Associated With Sulfate Import and Activation byFrontiers in microbiology · 2020Article
- Role of APS reductase in biogeochemical sulfur isotope fractionation.Nature communications · 2019Article
- The Biogeochemical Sulfur Cycle of Marine Sediments.Frontiers in microbiology · 2019Review
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No grant is acknowledged in the PubMed record.
Abstract
Phanerozoic levels of atmospheric oxygen relate to the burial histories of organic carbon and pyrite sulfur. The sulfur cycle remains poorly constrained, however, leading to concomitant uncertainties in O2 budgets. Here we present experiments linking the magnitude of fractionations of the multiple sulfur isotopes to the rate of microbial sulfate reduction. The data demonstrate that such fractionations are controlled by the availability of electron donor (organic matter), rather than by the concentration of electron acceptor (sulfate), an environmental constraint that varies among sedimentary burial environments. By coupling these results with a sediment biogeochemical model of pyrite burial, we find a strong relationship between observed sulfur isotope fractionations over the last 200 Ma and the areal extent of shallow seafloor environments. We interpret this as a global dependency of the rate of microbial sulfate reduction on the availability of organic-rich sea-floor settings. However, fractionation during the early/mid-Paleozoic fails to correlate with shelf area. We suggest that this decoupling reflects a shallower paleoredox boundary, primarily confined to the water column in the early Phanerozoic. The transition between these two states begins during the Carboniferous and concludes approximately around the Triassic-Jurassic boundary, indicating a prolonged response to a Carboniferous rise in O2. Together, these results lay the foundation for decoupling changes in sulfate reduction rates from the global average record of pyrite burial, highlighting how the local nature of sedimentary processes affects global records. This distinction greatly refines our understanding of the S cycle and its relationship to the history of atmospheric oxygen.
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