Great Oxygenation Event

English

Proper noun

the Great Oxygenation Event

  1. (geology, paleontology, earth science) A period around 2.5 to 2.3 billion years ago when the atmosphere of the Earth and its shallow oceans saw a sustained increase in oxygen, caused by the widespread proliferation of photosynthetic cyanobacteria.
    Synonyms: GOE (initialism), Oxygen Revolution, Oxygenation Event, Great Oxygenation, Oxygen Catastrophe, Oxygen Crisis, Oxygen Holocaust, Oxygenation Crisis, Oxygenation Holocaust, Oxygenation Catastrophe

Further reading

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