Oxygen levels in the Earth's atmosphere

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Oxygen levels in the Earth's atmosphere

Post by Lazarus on 24th October 2012, 6:06 pm

SpaceRef: Oxygen's Ups and Downs in the Early Atmosphere and Ocean

Possibly the Earth's atmosphere had high levels of oxygen around 2.3–2.2 Ga which then fell off again. Interesting implications for evolution/geology if true.
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