The great ice ages and atmospheric changes of the Precambrian, including the Huronian, Sturtian and Marinoan glaciations and the Great Oxidation Event that raised oxygen in the air. An event belongs here when its cited article describes a Precambrian glaciation or the rise of oxygen. It excludes later ice ages. Some of these glaciations may have covered the planet in ice, and they are dated from rock layers rather than from historical records.
All Precambrian Glaciations and Oxygenation
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Huronian glaciation (Wikipedia)
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The Huronian glaciation (or Makganyene glaciation) was a period when at least three ice ages occurred during the deposition of the Huronian Supergroup.
Sturtian glaciation (Wikipedia)
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The Sturtian glaciation, also known as the Sturt glaciation, was a worldwide glaciation during the Cryogenian Period when the Earth experienced repeated large-scale glaciations.
Marinoan glaciation (Wikipedia)
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The Marinoan glaciation (also known as the Varanger glaciation, or Elatina glaciation) was a period of worldwide glaciation during the Cryogenian period.
Great Oxidation Event (Wikipedia)
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The Great Oxidation Event (GOE) or Great Oxygenation Event, also called the Oxygen Catastrophe, Oxygen Revolution, Oxygen Crisis, or Oxygen Holocaust, was a time interval during the Earth's Paleoproterozoic era when the Earth's atmosphere and shallow seas first experienced a rise in the concentration of free oxygen.
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