Statherian
The Statherian (/stəˈθɪəriən/; Greek: statheros, meaning "stable, firm") is the final geologic period in the Paleoproterozoic Era and lasted from 1800 Mya to 1600 Mya (million years ago). Instead of being based on stratigraphy, these dates are defined chronometrically.
The period is characterized on most continents by either new platforms or final cratonization of fold belts.
By the beginning of the Statherian, the supercontinent Columbia had assembled.
References
- "Statherian Period". GeoWhen Database. Archived from the original on May 12, 2006. Retrieved January 5, 2006.
- James G. Ogg (2004). "Status on Divisions of the International Geologic Time Scale". Lethaia 37 (2): 183–199. doi:10.1080/00241160410006492.
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