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Updated: Jul 28, 2026

Laboratory Simulation of an Iron(II)-rich Precambrian Marine Upwelling System to Explore the Growth of Photosynthetic Bacteria
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Active microbial sulfur disproportionation in the Mesoproterozoic

David T Johnston1, Boswell A Wing, James Farquhar

  • 1Department of Geology and Earth System Science Interdisciplinary Center, University of Maryland, College Park, MD 20742, USA. dtj@geol.umd.edu

Science (New York, N.Y.)
|December 3, 2005
PubMed
Summary

Sulfur compound disproportionation was active by 1300 million years ago, earlier than previously thought. New sulfur isotope data suggest Earth

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