Mesoarchean
From Infogalactic: the planetary knowledge core
Mesoarchean Eon 3200–2800 million years ago |
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Scale:
Millions of years |
The Mesoarchean (/ˌmiːzoʊ.ɑːrˈkiː.ən/, also spelled Mesoarchaean) is a geologic era within the Archean, spanning 3,200 to 2,800 million years ago. The period is defined chronometrically and is not referenced to a specific level in a rock section on Earth. Fossils from Australia show that stromatolites have lived on Earth since the Mesoarchean. The Pongola glaciation occurred at 2,900 million years ago.[1] The first supercontinent Vaalbara broke up during this time around 2,800 million years ago.
References
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External links
Wikimedia Commons has media related to Archean. |
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