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Biogeochemistry

Deepening the early oxygen debate

Nature Geoscience volume 2, pages 241–242 (2009)Cite this article

The timing of the earliest production of oxygen by photosynthesis is hotly debated. Haematite crystals from Pilbara, Australia, may provide evidence for a deep ocean that was at least occasionally oxygenated by photosynthetic microbes 3.46 billion years ago.

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Figure 1

HIROSHI OHMOTO

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  1. Kurt Konhauser is at the Department of Earth and Atmospheric Sciences University of Alberta, Edmonton, Alberta T6G 2E3, Canada. kurtk@ualberta.ca,

    Kurt Konhauser

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  1. Kurt Konhauser
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Konhauser, K. Deepening the early oxygen debate. Nature Geosci 2, 241–242 (2009). https://doi.org/10.1038/ngeo484

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