]]The Great Oxygenation Event (GOE), also called the Oxygen Catastrophe, Oxygen Crisis, Oxygen Holocaust, Oxygen Revolution, or Great Oxidation, was the biologically induced appearance of dioxygen (O2) in Earth's atmosphere.
* Oceanic nickel depletion and a methanogen famine before the Great Oxidation Event — "Nature 458, 750—753 (09.04.2009)"* Концентрация кислорода в атмосфере Земли доходила до 70 % — "CNews, 03.08.2010"