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Archean Era
The second major geological era in the history of Earth, following the Hadean and preceding the Proterozoic. Representing typical eogaian conditions, it was characterized by a reducing atmosphere, the presence of micro-organisms only, and extensive volcanic activity.
 
Appears in Topics
-13.7Gy to -7000 AT: Preterragen Era Paleontology
 
Development Notes
Text by M. Alan Kazlev
Initially published on 07 October 2001.

 
 
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