Date of great oxidation event

Range ~2.4 Billion years ago
Organism Biosphere
Reference Buick R. When did oxygenic photosynthesis evolve? Philos Trans R Soc Lond B Biol Sci. 2008 Aug 27 363(1504):2731-43. p.2737 right column bottom paragraphPubMed ID18468984
Comments The timing of the Great Oxidation Event is best constrained by the disappearance of large non-mass dependent sulphur isotope fractionations. See Olivia P. Judson, The energy expansions of evolution, Nature ecology & evolution, 28 April 2017, p.2 left column bottom paragraph: "Between 2.45 and 2.32 Ga (ref. 46), significant quantities of oxygen began to accumulate in the air, an episode known as the Great Oxidation Event."
Entered by Uri M
ID 107048