Palaeoecology A breath of fresh air

D. E. Canfield ()
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D. E. Canfield: Institute of Biology, Odense University

Nature, 1999, vol. 400, issue 6744, 503-505

Abstract: We owe our oxygen-rich atmosphere to the photosynthetic activity of ancient bacteria. Chemical traces found in rocks have pushed back the origins of this process to 2.5 billion years ago.

Date: 1999
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DOI: 10.1038/22872

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