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by Stratigraphy.net
New from Snet: Lithologs, a new tool to create lithological/sedimentological logs online..

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Rethinking the Timing of the Great Oxygenation Event

A research team of biogeochemists at the University of California, Riverside has provided a new view on the relationship between the earliest accumulation of oxygen in the atmosphere, arguably the most important biological event in Earth history, and its relationship to the sulfur cycle. A general consensus exists that appreciable oxygen first accumulated in Earth's atmosphere around 2.4 to

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