Archean (4031 +/-3 Ma)

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Representation and status

Color CMYK
0/100/0/0 (Commission for the Geological Map of the World)
Color RGB
R: 240 G: 4 B: 127
Rank
chronostratigraphic Eon
Validity
Unit is in Use
Status
valid formal name
Status discussion

Nomenclature

Deutsch
Archaikum
Français
Archéen
Italiano
Archeano
English
Archean (4031 +/-3 Ma)
Origin of the Name

archeo (Latin): old (see also Grand Canyon, Colorado).

Historical Variants

Archean (Dana 1876), Archaikum = Urzeit (Roesli 1948), Archaean, Archæan, Archeozoic

Hierarchy and sequence

Subordinate units
Units at roof

Age

Age at top
  • Archean
Age at base
  • Archean

Geography

Type area
Grand Canyon (Colorado, USA)

  • Neoarchean (2800 Ma)

    Rank
    chronostratigraphy
    Status
    informal term
    Age
    Archean
    Show details

  • Mesoarchean (3200 Ma)

    Rank
    chronostratigraphy
    Status
    informal term
    Age
    Archean
    Show details

  • Paleoarchean (3600 Ma)

    Rank
    chronostratigraphy
    Status
    informal term
    Age
    Archean
    Show details

  • Eoarchean (4000 Ma)

    Rank
    chronostratigraphy
    Status
    informal term
    Age
    Archean
    Show details
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