Great Oxygenation Event (English, name)
expansion: the Great Oxygenation Event
Senses:
topics: biology
geography
geology
history
human-sciences
natural-sciences
paleontology
sciences
qualifier: earth science
glosses: 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.
Forms:
form: the Great Oxygenation Event
tags: canonical