Orosirian (2050 Ma)

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Representation and status

Color CMYK
0/60/15/0
Color RGB
R: 247 G: 104 B: 152
Rank
chronostratigraphy
Validity
Unit is in Use
Status
valid

Nomenclature

Deutsch
Orosirium
Français
Orosirien
Italiano
Orosiriano
English
Orosirian (2050 Ma)
Origin of the Name

From oroseirá (Greek), meaning "mountain range".

Description

Description

Two of the largest known impact events on Earth occurred during the Orosirian: Vredefort impact structure (2023 Ma) and Sudbury Basin (1850 Ma).

Hierarchy and sequence

Age

Age at top
  • Paleoproterozoic (= Early Proterozoic)
Age at base
  • Paleoproterozoic (= Early Proterozoic)
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