Eoarchean Era
From 3800 To 3600 +/- 0 Ma
End Defined By: Fixed Date
End Based On: Gradstein, Ogg, Smith, _A Geologic Time Scale 2004_
Comment: Base of the Eoarchean is not formally defined by the ICS.
-- A Substage of --
Time: Precambrian (4567.17 - 542)
Eon: Archean (3800 - 2500)
Chinese Stage: Qianxin (3800 - 3400)
European Stage: Isuan (3800 - 3500)
South African Stage: Swazian (4000 - 3000)
-- Preceeded By --
Eon: Hadean (4567.17 - 3800)
General Stage: Early Imbrian (3900 - 3800)
-- Followed By --
Era: Paleoarchean (3600 - 3200)
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