PerspectiveGeochemistry

New Players in an Ancient Cycle

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Science  14 Sep 2007:
Vol. 317, Issue 5844, pp. 1508-1509
DOI: 10.1126/science.1148137

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Summary

Isotope data from Australia provide evidence for the existence of bacteria that used elemental sulfur in metabolic processes about 3.5 billion years ago.

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