Huronian glaciation

The huronian glaciation was named due to evidence collected from Lake Huron region.

This event is known as the oxygen catastrophe, which according to some geologists triggered the Huronian glaciation.

The breakup of Kenorland was contemporary with the Huronian glaciation which persisted for up to 60 million years.

The reaction removed the methane and caused the Huronian glaciation, possibly the longest snowball Earth episode ever.

Another, much earlier and longer, snowball episode, the Huronian glaciation, which occurred 2400 to 2100 Ma may have been triggered by the oxygen catastrophe.

First, it oxidized atmospheric methane (a strong greenhouse gas) to carbon dioxide (a weaker one) and water, triggering the Huronian glaciation.

The Huronian glaciation (or Makganyene glaciation) lasted from 2400 million years ago (mya) to 2100 mya, during the Palaeoproterozoic era.

Additionally the free oxygen reacted with the atmospheric methane, a greenhouse gas, reducing its concentration and thereby triggering the Huronian glaciation, possibly the longest snowball Earth episode.

Huronian glaciation 2,400 - 2,100 million years ago (mya) The Snowball Earth hypothesis explains glacial deposits in the Huronian supergroup of Canada.

However, the geological record shows a continually relatively warm surface in the full early temperature record of the Earth, with the exception of a cold phase, the Huronian glaciation, about 2.4 to 2.1 billion years ago.

The Huronian glaciation may have been caused by the oxygen catastrophe, a 250 million year lull in volcanic activity, resulting in lesser carbon dioxide levels and a reduced greenhouse effect, or a combination of both.

This change from MIF to MDF of sulfur isotopes also may have been caused by an increase in glacial weathering, or the homogenization of the marine sulfur pool as a result of an increased thermal gradient during the Huronian glaciation period.