Mass-independent fractionation of sulfur isotopes in Archean sediments: strong evidence for an anoxic Archean atmosphere.

@article{Pavlov2002MassindependentFO,
  title={Mass-independent fractionation of sulfur isotopes in Archean sediments: strong evidence for an anoxic Archean atmosphere.},
  author={A. Pavlov and J. Kasting},
  journal={Astrobiology},
  year={2002},
  volume={2 1},
  pages={
          27-41
        }
}
Mass-independent fractionation (MIF) of sulfur isotopes has been reported in sediments of Archean and Early Proterozoic Age (> 2.3 Ga) but not in younger rocks. The only fractionation mechanism that is consistent with the data on all four sulfur isotopes involves atmospheric photochemical reactions such as SO2 photolysis. We have used a one-dimensional photochemical model to investigate how the isotopic fractionation produced during SO2 photolysis would have been transferred to other gaseous… Expand
Production, preservation, and biological processing of mass-independent sulfur isotope fractionation in the Archean surface environment
  • I. Halevy
  • Geology, Medicine
  • Proceedings of the National Academy of Sciences
  • 2013
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