Archean
Archean
Hierarchy: | Precambrian Archean | ||||||||
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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 | ||||||||
Fossil Record Data via PaleoBioDB Taxa Count Key First appearance Extinction First appearance and extinction Related precursors |
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Oxygen photosynthesis evolved leading the way for the later oxygen catastrophe, or Great Oxygenation Event.
Geologic Events
Event Name | Type | Age | Area |
---|---|---|---|
Insel orogeny | Orogeny | 2650 ± 150 Ma | Antarctica |
Algoman/Kenoran orogeny (concludes) | Orogeny | ~2700 - ~2500 Ma | North America |
Pongola glaciation (concludes) | Glaciation Event | ~2900 - ~2780 Ma | Global |
Lopian orogeny (concludes) | Orogeny | ~2900 - ~2800 Ma | Europe |
Humboldt orogeny (concludes) | Orogeny | ~3000 Ma | Antarctica |
Ur formation (concludes) | Continental Assembly | ~3100 Ma | Global |
Great Oxygenation Event (concludes) | Major Climatic Event | ~3500 - ~850 Ma | Global |
Rayner orogeny (concludes) | Orogeny | ~3500 Ma | Antarctica |
Naiper orogeny | Orogeny | 4000 ± 200 Ma | Antarctica |
Late Heavy Bombardment (concludes) | Impact Event | ~4100 - ~3800 Ma | Global |
First life (concludes) | Evolutionary event | ~4280 - ~3500 Ma | Global |
Overview of geological time
List all geological events