GeoWhen Database  

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                                Orosirian Period
 
                        From 2050 +/- 0 To 1800 +/- 0 Ma
 
  Start Defined By:  Fixed Date
  End Defined By:  Fixed Date
 
  Start Based On:  Gradstein, Ogg, Smith, _A Geologic Time Scale 2004_
  End Based On:  Gradstein, Ogg, Smith, _A Geologic Time Scale 2004_
 
 -- A Substage of --
  Time:                Precambrian      (4567.17 - 542)
  Eon:                 Proterozoic      (2500 - 542)
  Era:                 Paleoproterozoic (2500 - 1600)
  Australian Stage:    Nullaginian      (2500 - 1800)
  Chinese Stage:       Luliangian       (2350 - 1750)
  General Stage:       Huronian         (2500 - 1400)
  General Stage:       Animikean        (2225 - 1400)
  South African Stage: Mokolian         (2050 - 900)
 
 -- Preceeded By --
  Period:              Rhyacian (2300 - 2050)
  South African Stage: Vaalian  (2500 - 2050)
 
 -- Followed By --
  Period:           Statherian   (1800 - 1600)
  Australian Stage: Carpentarian (1800 - 1300)
 

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.

Introduction

Geologic Timeline
(No Stages)

Geologic Timeline
(With Stages)

A-Z Stage List

Regional Information

Download Files


2003-2005 GeoWhen Database
Prepared By Robert A. Rohde


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