Proterozoic (2500 Ma)
Retour à chronostratigraphieReprésentation et statut
- Couleur CMYK
- 0/80/35/0 (Commission for the Geological Map of the World)
- Couleur RGB
- R: 247 G: 53 B: 99
- Rang
- Éon chronostratigraphique
- Usage
- Ce terme est en usage.
- Status
- terme formel valide
Nomenclature
- Deutsch
- Proterozoikum
- Français
- Protérozoïque
- Italiano
- Proterozoico
- English
- Proterozoic (2500 Ma)
- Variantes historiques
- Azoïque, Erdurzeit, Proterozoic (Chamberlain & Salisbury 1906), Eozoikum = Frühzeit (Roesli 1948)
Hiérarchie et succession
- Unités hiérarchiquement subordonnées
- Unités sus-jacentes
Âge
- Âge au sommet
-
- Protérozoïque
- Âge à la base
-
- Protérozoïque
-
Neoproterozoic (1000 Ma)
- Rang
- chronostratigraphie
- Statut
- valide
- En bref
- Last era of the Proterozoic.
- Age
- Protérozoïque
-
Ediacaran (~ 635 Ma)
- Name Origin
-
Named after the Ediacara Hills (South Australia).
- Rang
- Période chronostratigraphique
- Statut
- valide
- En bref
- Last period of the Neoproterozoic (ca. 635-541 Ma), with a peculiar soft-bodied fauna.
- Age
- Néoprotérozoïque (= Protérozoïque tardif)
-
Cryogenian (~ 720 Ma)
- Name Origin
-
From krýos and génesis (Greek), meaning "cold" resp. "birth".
- Rang
- chronostratigraphie
- Statut
- valide
- En bref
- Middle period of the Neoproterozoic, characterised by cold climatic conditions («Snowball Earth» ; Sturtian and Marinoan glaciations). Its base has been defined chronometrically.
- Age
- Néoprotérozoïque (= Protérozoïque tardif)
-
Tonian (1000 Ma)
- Name Origin
-
From tóno (Greek), meaning "stretch".
- Rang
- chronostratigraphie
- Statut
- valide
- En bref
- First period of the Neoproterozoic. Its base has been defined chronometrically.
- Age
- Néoprotérozoïque (= Protérozoïque tardif)
-
Mesoproterozoic (1600 Ma)
-
Stenian (1200 Ma)
- Name Origin
-
From stenós (Greek), meaning "narrow".
- Rang
- chronostratigraphie
- Statut
- valide
- En bref
- Last period of the Mesoproterozoic, during which the supercontinent Rodinia assembled. Its base has been defined chronometrically.
- Age
- Mesoproterozoic (= Middle Proterozoic)
-
Ectasian (1400 Ma)
- Name Origin
-
From éktasis (Greek), meaning "extension".
- Rang
- chronostratigraphie
- Statut
- valide
- En bref
- Second period of the Mesoproterozoic. Its base has been defined chronometrically.
- Age
- Mesoproterozoic (= Middle Proterozoic)
-
Calymmian (1600 Ma)
- Name Origin
-
From kálymma (Greek), meaning "cover".
- Rang
- chronostratigraphie
- Statut
- valide
- En bref
-
First period of the Mesoproterozoic. Its base has been defined chronometrically.
- Age
- Mesoproterozoic (= Middle Proterozoic)
-
-
Paleoproterozoic (2500 Ma)
-
Statherian (1800 Ma)
- Name Origin
-
From statherós (Greek), meaning "stable, firm".
- Rang
- chronostratigraphie
- Statut
- valide
- En bref
- Last period of the Paleoproterozoic. Its base has been defined chronometrically.
- Age
- Paleoproterozoic (= Early Proterozoic)
-
Orosirian (2050 Ma)
- Name Origin
-
From oroseirá (Greek), meaning "mountain range".
- Rang
- chronostratigraphie
- Statut
- valide
- En bref
-
Third period of the Paleoproterozoic. Its base has been defined chronometrically.
- Age
- Paleoproterozoic (= Early Proterozoic)
-
Rhyacian (2300 Ma)
- Name Origin
-
From rhýax (Greek), meaning "stream of lava".
- Rang
- chronostratigraphie
- Statut
- valide
- En bref
- Second period of the Paleoproterozoic : Bushveld Igneous Complex, Huronian (Makganyene) global glaciation. Its base has been defined chronometrically.
- Age
- Paleoproterozoic (= Early Proterozoic)
-
Siderian (2500 Ma)
- Name Origin
-
From sídēros (Greek), meaning "iron".
- Rang
- chronostratigraphie
- Statut
- valide
- En bref
- 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)
-