The Huronian glaciation (or Makganyene glaciation) [1] was a period where at least three ice ages occurred during the deposition of the Huronian Supergroup. Deposition of this largely sedimentary succession extended from approximately 2.5 to 2.2 billion years ago (Gya), during the Siderian and Rhyacian periods of the Paleoproterozoic era.

2010年5月24日 · The Huronian glaciation is the oldest ice age we know about. The Earth was just over 2 billion years old, and home only to unicellular life-forms.

The oldest known glacial period is the Huronian. Based on evidence of glacial deposits from the area around Lake Huron in Ontario and elsewhere, it is evident that the Huronian Glaciation lasted from approximately 2,400 to 2,100 Ma.

2020年12月13日 · The Huronian glaciation is the oldest series of protracted climatic refrigeration events that extensively affected Earth. It occurred between 2.45 and 2.22 Ga in association with the rise of atmospheric oxygen.

2023年11月24日 · The oldest known glacial period is the Huronian, and as we’ve seen, it was likely initiated because of the evolution of photosynthetic organisms. This resulted in an increase of free oxygen in the atmosphere and a consequent drop in the levels of the greenhouse gas methane—which triggered cooling.

The Huronian glaciation (or Makganyene glaciation) lasted from 2400 million years ago (mya) to 2100 mya, during the Paleoproterozoic era. The glaciation was named after evidence recovered from the Lake Huron region in North America .

It was named for two non-glacial sediment deposits found between three separate horizons of glacial deposits of the Huronian Supergroup deposited between 2.5 and 2.2 billion years ago in the geographic area of Lake Huron. This ice age led to a mass-extinction on Earth.

The Huronian Glaciation is divided into multiple stages, with evidence of glacial deposits found in regions like Ontario and Michigan. This glaciation is believed to have been triggered by a combination of tectonic activities and a reduction in greenhouse gases due to early life processes.

2024年5月16日 · The oldest known glacial period is the Huronian. Based on evidence of glacial deposits from the area around Lake Huron in Ontario and elsewhere, it’s evident that the Huronian Glaciation lasted from approximately 2.4 to 2.1 Ga.

2021年12月28日 · The Huronian glaciation is the oldest series of protracted climatic refrigeration events that extensively affected Earth. It occurred between 2.45 and 2.22 Ga in association with the rise of atmospheric oxygen.