ओरोसिरियाई कल्प
Also known as Orosirian Period, Orosirian System
The Orosirian (; , meaning "mountain range") is the third geologic period in the Paleoproterozoic Era. It spans 250 million years and lasted from to million years ago (Ma), following the Rhyacian Period and preceding the Statherian Period. Instead of being based on stratigraphy, these dates are defined chronometrically.
Key facts
- Geologic timespan.name
- Orosirian
- Geologic timespan.color
- Orosirian
- Geologic timespan.top_bar
- all time
- Geologic timespan.image_map
- 2000 Ma paleoglobe.png
- Geologic timespan.caption_map
- A map of Earth as it appeared during the early Orosirian, c. 2 Ga
- Geologic timespan.timeline
- Orosirian
- Geologic timespan.name_formality
- Formal
- Geologic timespan.celestial_body
- earth
- Geologic timespan.usage
- Global (ICS)
- Geologic timespan.timescales_used
- ICS Time Scale
- Geologic timespan.chrono_unit
- Period
- Geologic timespan.strat_unit