Archean Eon
                                  (Archeozoic)
 
                           From 3800 To 2500 +/- 0 Ma
 
  End Defined By:  Fixed Date
 
  End Based On:  Gradstein, Ogg, Smith, _A Geologic Time Scale 2004_
 
  Comment:  The base of the Archean is not formally defined by the ICS.
 
 -- Overlaps With --
  Chinese Stage:       Wutaian (2600 - 2350)
  South African Stage: Swazian (4000 - 3000)
 
 -- A Substage of --
  Time: Precambrian (4567.17 - 542)
 
 -- Preceeded By --
  Eon:           Hadean        (4567.17 - 3800)
  General Stage: Early Imbrian (3900 - 3800)
 
 -- Followed By --
  Eon:                 Proterozoic      (2500 - 542)
  Era:                 Paleoproterozoic (2500 - 1600)
  Period:              Siderian         (2500 - 2300)
  Australian Stage:    Nullaginian      (2500 - 1800)
  General Stage:       Huronian         (2500 - 1400)
  South African Stage: Vaalian          (2500 - 2050)
 
 -- Contains the Following Eras --
  Era: Eoarchean    (3800 - 3600)
  Era: Paleoarchean (3600 - 3200)
  Era: Mesoarchean  (3200 - 2800)
  Era: Neoarchean   (2800 - 2500)
 

This page was automatically generated from the GeoWhen database (version 1.1.0).  Please read the introduction regarding the accuracy and reliability of this information.  Comments, corrections, and additions can be sent to geowhen@robertrohde.com.  References to published academic literature are preferred.

© 2003-2005 GeoWhen Database
Prepared By Robert A. Rohde

This page was last updated on Tuesday, January 18, 2005.