Mesoarchean

atmosphere

The Mesoarchean atmosphere contained high levels of atmospheric methane and carbon dioxide, which could be an explanation for the high temperatures during this era.

geologic era of

Archean

life

Microbial life with diverse metabolisms expanded during the Mesoarchean era and produced gases that influenced early Earth’s atmospheric composition.

nitrogen

Atmospheric dinitrogen content in the Mesoarchean is thought to have been similar to today, suggesting that nitrogen did not play an integral role in the thermal budget of ancient Earth.

oxygen

Cyanobacteria produced oxygen gas, but oxygen did not begin to accumulate in the atmosphere until later in the Archean.

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tagged

This era saw the rise of oxygen in the atmosphere after oxygenic photosynthesis evolved in cyanobacteria as early as the Mesoarchean era.

tags

geologic era

Wikidata

https://www.wikidata.org/wiki/Q607992

Wikimedia

https://commons.wikimedia.org/wiki/Category:Mesoarchean

Wikipedia

Mesoarchean (Wikipedia) The Mesoarchean (/ˌmiːzoʊ.ɑːrˈkiːən, ˌmɛzoʊ-/ MEE-zoh-ar-KEE-ən, MEZ-oh-, also spelled Mesoarchaean) is a geologic era in the Archean Eon, spanning 3,200 to 2,800 million years ago, which contains the first evidence of modern-style plate subduction and expansion of microbial life. The era is defined chronometrically and is not referenced to a specific level in a rock section on Earth.

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Neoarchean

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Paleoarchean