Paleoproterozoic (2500 Ma)

Representation and status

Color CMYK
0/75/30/0
Color RGB
R: 247 G: 67 B: 112
Rank
chronostratigraphy
Validity
Unit is in Use
Status
valid

Nomenclature

Deutsch
Paläoproterozoikum
Français
Paléoprotérozoïque
Italiano
Paleoproterozoico
English
Paleoproterozoic (2500 Ma)

Hierarchy and sequence

Subordinate units
Units at roof

Age

Age at top
  • Proterozoic
Age at base
  • Proterozoic

  • Statherian (1800 Ma)

    Name Origin

    From statherós (Greek), meaning "stable, firm".

    Rank
    chronostratigraphy
    Status
    valid
    In short
    Last period of the Paleoproterozoic. Its base has been defined chronometrically.
    Age
    Paleoproterozoic (= Early Proterozoic)
    Show details

  • Orosirian (2050 Ma)

    Name Origin

    From oroseirá (Greek), meaning "mountain range".

    Rank
    chronostratigraphy
    Status
    valid
    In short

    Third period of the Paleoproterozoic. Its base has been defined chronometrically.

    Age
    Paleoproterozoic (= Early Proterozoic)
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  • Rhyacian (2300 Ma)

    Name Origin

    From rhýax (Greek), meaning "stream of lava".

    Rank
    chronostratigraphy
    Status
    valid
    In short
    Second period of the Paleoproterozoic : Bushveld Igneous Complex, Huronian (Makganyene) global glaciation. Its base has been defined chronometrically.
    Age
    Paleoproterozoic (= Early Proterozoic)
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  • Siderian (2500 Ma)

    Name Origin

    From sídēros (Greek), meaning "iron".

    Rank
    chronostratigraphy
    Status
    valid
    In short
    First period of the Paleoproterozoic, characterised by a peak in the deposition of banded iron formations (BIFs). Its base has been defined chronometrically.
    Age
    Paleoproterozoic (= Early Proterozoic)
    Show details
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