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Paleoproterozoic

Hierarchy:Precambrian Proterozoic
  Paleoproterozoic
Classification:Era (as per International Commission on Stratigraphy)
Top:1600 Ma
Base:2300 Ma
Preceeds:Mesoproterozoic Calymmian
Follows:Siderian
Primary Divisions:StatherianOrosirianRhyacianSiderian
FGDC code:X
The earliest of three subdivisions of the Proterzoic Eon. This is when the continents first stabilized. Evidence suggests at this time there were about 450 days in a year, implying 20-hour days.
 

Geologic Events

Event NameTypeAgeArea
Gothian orogeny (concludes)Orogeny~1750 - ~1500 MaEurope
Sudbury impactImpact Event1850 ± 3 MaSudbury, Ontario
Early Ruker orogenyOrogeny2000 - 1700 MaAntarctica
Svecofennian orogeny (concludes)Orogeny~2000 - ~1750 MaEurope
Vredefort impactImpact Event2023 ± 0.004 MaFree State Province, South Africa
Columbia (Nuna) supercontinent assemblyContinental Assembly2125 ± 125 - 1780 ± 70 MaGlobal
Eburnean orogeny (concludes)Orogeny~2200 - ~2000 MaWest Africa
Huronian glaciation (concludes)Glaciation Event~2400 - ~2100 MaGlobal
Great Oxygenation Event (concludes)Major Climatic Event~3500 - ~850 MaGlobal


Overview of geological time

List all geological events
Mineral and/or Locality  
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