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Summary
DescriptionEvolution Of Atmospheric Oxygen.svg
English: Evolution Of atmospheric Oxygen. O2 build-up in earth's atmosphere: 1) (3.85–2.45Gyr ago (Ga)) no O2 produced, 2) (2.45–1.85Ga) O2 produced, but absorbed in oceans & seabed rock, 3) (1.85–0.85Ga) O2 starts to gas out of the oceans, but is absorbed by land surfaces and formation of ozone layer, 4) (0.85–0.54Ga) and 5) (0.54Ga–present) O2 sinks filled and the gas accumulates]]. Redraw from Heinrich D. Holland (2006), The oxygenation of the atmosphere and oceans, Philosophical Transactions of The Royal Society B, Volume 361, Number 1470 / June 29, 2006, pp. 903-915, DOI 10.1098/rstb.2006.1838.
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{{Information |Description={{en|1=Evolution Of Atmosferic Oxygen. O<sub>2</sub> build-up in earth's atmosphere: 1) (3.85–2.45Gyr ago (Ga)) no O<sub>2</sub> produced, 2) (2.45–1.85Ga) O<sub>2</sub> produced, but absorbed in oceans & seabed rock, 3)