Eras
Mesoarchean
Archean
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The third era of the Archean eon, spanning about 3.2 to 2.8 billion years ago. Localized oases of relatively oxygen rich water existed in some nearshore shallow marine settings during this era, an early precursor to the much later atmospheric oxygenation of the Paleoproterozoic.
Facts
Start (Million Years Ago) End (Million Years Ago) Key EventOases of relatively high oxygen levels existed in some nearshore shallow marine settings by the Mesoarchean. 1 Cross-Tradition Connections
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Sources
1. Archean (Wikipedia)
Wikimedia FoundationInfobox chronology tableQuote, Infobox chronology table
3,200-2,800 Ma
1. Archean (Wikipedia)
Wikimedia FoundationOcean and atmosphere chemistry sectionQuote, Ocean and atmosphere chemistry section
Oases of relatively high oxygen levels existed in some nearshore shallow marine settings by the Mesoarchean.
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