Orosirian (2050 Ma)
Back to Time ScaleRepresentation 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
- Units at roof
Age
- Age at top
-
- Paleoproterozoic (= Early Proterozoic)
- Age at base
-
- Paleoproterozoic (= Early Proterozoic)