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.

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 .

2013年9月1日 · In this paper, the Huronian Glaciation Event is constrained to have occurred synchronously during 2.29–2.25 Ga, accompanied by dramatic environmental changes characteristic of the Great Oxidation Event which includes the pre-2.3 Ga hydrosphere oxidation and the post-2.3 Ga atmosphere oxygenation.

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.

It is sometimes called the Huronian glaciation or Makganyene glaciation. It dates to between 2.4 and 2.1 Ga, and is best preserved in North America in Ontario’s Gowganda Formation, a striking jet-black tillite that formed about 2.3 Ga.

The Huronian Glaciation refers to a significant ice age that occurred approximately 2.4 to 2.1 billion years ago, marking one of the earliest known glaciation events in Earth's history. This period is characterized by extensive glacial activity across large parts of the Earth's surface, primarily affecting what is now North America.

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.