Proterozoic (2500 Ma)

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Representation and status

Index
-
CMYK Color
0/80/35/0 (Commission for the Geological Map of the World)
RGB color
R: 247 G: 53 B: 99
Rank
chronostratigraphic Eon
Validity
Unit is in Use
Status
valid formal name
SCS note
-
SCS date
-
Comment
-

Nomenclature

German
Proterozoikum
French
Protérozoïque
Italian
Proterozoico
English
Proterozoic (2500 Ma)
Origin of the Name
-
Historical Variants
Azoïque, Erdurzeit, Proterozoic (Chamberlain & Salisbury 1906), Eozoikum = Frühzeit (Roesli 1948)
Nomenclatorial Remarks
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Synonyms

Synonyms
Non-synonyms
Possible confusion

Description

Description
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Geomorphology
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Thickness
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Components

Lithological content
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Mineral content
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Fossil content
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Hierarchy and succession

Units at roof
    -
Units at floor
Lateral equivalents
Upper boundary
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Lower boundary
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Stratigraphic discussion
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Age

Age at top
Proterozoic
Note about top
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Age at base
Proterozoic
Note about base
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Dating method
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Geography

Geographical extent
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Type area
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Type locality
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Type profile
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Reference profiles
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Point of interest
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Paleogeography and tectonic

Paleogeography
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Kind of protolith
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Conditions of formation
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Sequence
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Tectonic Unit (resp. main category)
Time Scale
  • Paratethys
  • Mammal stages
Metamorphism
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Metamorphic facies
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Note on metamorphism
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References

Definition
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Revision
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Important publications
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Material and varia

Applications
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  • Neoproterozoic (1000 Ma) Show details

    Origin of the Name
    -
    Rank
    chronostratigraphy
    Status
    valid
    Valid name
    In Short
    Last era of the Proterozoic.
    Age
    Proterozoic - Proterozoic
    Thickness
    -
    Geographical extent
    -
    Type area
    -
    Comment
    -
    • Ediacaran (~ 635 Ma) Show details

      Origin of the Name

      Named after the Ediacara Hills (South Australia).

      Rank
      chronostratigraphic Period
      Status
      valid
      Valid name
      In Short
      Last period of the Neoproterozoic (ca. 635-541 Ma), with a peculiar soft-bodied fauna.
      Age
      Neoproterozoic (= Late Proterozoic) - Neoproterozoic (= Late Proterozoic)
      Thickness
      -
      Geographical extent
      -
      Type area
      -
      Comment
      -
    • Cryogenian (~ 720 Ma) Show details

      Origin of the Name

      From krýos and génesis (Greek), meaning "cold" resp. "birth".

      Rank
      chronostratigraphy
      Status
      valid
      Valid name
      In Short
      Middle period of the Neoproterozoic, characterised by cold climatic conditions («Snowball Earth» ; Sturtian and Marinoan glaciations). Its base has been defined chronometrically.
      Age
      Neoproterozoic (= Late Proterozoic) - Neoproterozoic (= Late Proterozoic)
      Thickness
      -
      Geographical extent
      -
      Type area
      -
      Comment
      -
    • Tonian (1000 Ma) Show details

      Origin of the Name

      From tóno (Greek), meaning "stretch".

      Rank
      chronostratigraphy
      Status
      valid
      Valid name
      In Short
      First period of the Neoproterozoic. Its base has been defined chronometrically.
      Age
      Neoproterozoic (= Late Proterozoic) - Neoproterozoic (= Late Proterozoic)
      Thickness
      -
      Geographical extent
      -
      Type area
      -
      Comment
      -
  • Mesoproterozoic (1600 Ma) Show details

    Origin of the Name
    -
    Rank
    chronostratigraphy
    Status
    valid
    Valid name
    In Short
    -
    Age
    Proterozoic - Proterozoic
    Thickness
    -
    Geographical extent
    -
    Type area
    -
    Comment
    -
    • Stenian (1200 Ma) Show details

      Origin of the Name

      From stenós (Greek), meaning "narrow".

      Rank
      chronostratigraphy
      Status
      valid
      Valid name
      In Short
      Last period of the Mesoproterozoic, during which the supercontinent Rodinia assembled. Its base has been defined chronometrically.
      Age
      Mesoproterozoic (= Middle Proterozoic) - Mesoproterozoic (= Middle Proterozoic)
      Thickness
      -
      Geographical extent
      -
      Type area
      -
      Comment
      -
    • Ectasian (1400 Ma) Show details

      Origin of the Name

      From éktasis (Greek), meaning "extension".

      Rank
      chronostratigraphy
      Status
      valid
      Valid name
      In Short
      Second period of the Mesoproterozoic. Its base has been defined chronometrically.
      Age
      Mesoproterozoic (= Middle Proterozoic) - Mesoproterozoic (= Middle Proterozoic)
      Thickness
      -
      Geographical extent
      -
      Type area
      -
      Comment
      -
    • Calymmian (1600 Ma) Show details

      Origin of the Name

      From kálymma (Greek), meaning "cover".

      Rank
      chronostratigraphy
      Status
      valid
      Valid name
      In Short
      First period of the Mesoproterozoic. Its base has been defined chronometrically.
      Age
      Mesoproterozoic (= Middle Proterozoic) - Mesoproterozoic (= Middle Proterozoic)
      Thickness
      -
      Geographical extent
      -
      Type area
      -
      Comment
      -
  • Paleoproterozoic (2500 Ma) Show details

    Origin of the Name
    -
    Rank
    chronostratigraphy
    Status
    valid
    Valid name
    In Short
    -
    Age
    Proterozoic - Proterozoic
    Thickness
    -
    Geographical extent
    -
    Type area
    -
    Comment
    -
    • Statherian (1800 Ma) Show details

      Origin of the Name

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

      Rank
      chronostratigraphy
      Status
      valid
      Valid name
      In Short
      Last period of the Paleoproterozoic. Its base has been defined chronometrically.
      Age
      Paleoproterozoic (= Early Proterozoic) - Paleoproterozoic (= Early Proterozoic)
      Thickness
      -
      Geographical extent
      -
      Type area
      -
      Comment
      -
    • Orosirian (2050 Ma) Show details

      Origin of the Name

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

      Rank
      chronostratigraphy
      Status
      valid
      Valid name
      In Short
      Third period of the Paleoproterozoic. Its base has been defined chronometrically.
      Age
      Paleoproterozoic (= Early Proterozoic) - Paleoproterozoic (= Early Proterozoic)
      Thickness
      -
      Geographical extent
      -
      Type area
      -
      Comment
      -
    • Rhyacian (2300 Ma) Show details

      Origin of the Name

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

      Rank
      chronostratigraphy
      Status
      valid
      Valid name
      In Short
      Second period of the Paleoproterozoic : Bushveld Igneous Complex, Huronian (Makganyene) global glaciation. Its base has been defined chronometrically.
      Age
      Paleoproterozoic (= Early Proterozoic) - Paleoproterozoic (= Early Proterozoic)
      Thickness
      -
      Geographical extent
      -
      Type area
      -
      Comment
      -
    • Siderian (2500 Ma) Show details

      Origin of the Name

      From sídēros (Greek), meaning "iron".

      Rank
      chronostratigraphy
      Status
      valid
      Valid name
      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) - Paleoproterozoic (= Early Proterozoic)
      Thickness
      -
      Geographical extent
      -
      Type area
      -
      Comment
      -