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Archean

Hierarchy:Precambrian
 Archean
Classification:Eon (as per International Commission on Stratigraphy)
Top:2500 Ma
Base:4000 Ma
Preceeds:Proterozoic Siderian
Follows:Hadean Early Imbrian
Primary Divisions:NeoarcheanMesoarcheanPaleoarcheanEoarchean
FGDC code:A
Oxygen photosynthesis evolved leading the way for the later oxygen catastrophe, or Great Oxygenation Event.
 

Geologic Events

Event NameTypeAgeArea
Insel orogenyOrogeny2650 ± 150 MaAntarctica
Algoman/Kenoran orogeny (concludes)Orogeny~2700 - ~2500 MaNorth America
Pongola glaciation (concludes)Glaciation Event~2900 - ~2780 MaGlobal
Lopian orogeny (concludes)Orogeny~2900 - ~2800 MaEurope
Humboldt orogeny (concludes)Orogeny~3000 MaAntarctica
Ur formation (concludes)Continental Assembly~3100 MaGlobal
Great Oxygenation Event (concludes)Major Climatic Event~3500 - ~850 MaGlobal
Rayner orogeny (concludes)Orogeny~3500 MaAntarctica
Naiper orogenyOrogeny4000 ± 200 MaAntarctica
Late Heavy Bombardment (concludes)Impact Event~4100 - ~3800 MaGlobal
First life (concludes)Evolutionary event~4280 - ~3500 MaGlobal


Overview of geological time

List all geological events
Mineral and/or Locality  
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