Proterozoic
Proterozoic
Hierarchy: | Precambrian Proterozoic |
---|---|
Classification: | Eon (as per International Commission on Stratigraphy) |
Top: | 541 ± 1.0 Ma |
Base: | 2500 Ma |
Preceeds: | Phanerozoic Paleozoic Cambrian Terreneuvian Fortunian |
Follows: | Archean Neoarchean |
Primary Divisions: | NeoproterozoicMesoproterozoicPaleoproterozoic |
FGDC code: | < |
A geological eon spanning the time from the Great Oxygenation Event to just before the proliferation of complex life on Earth.
Geologic Events
Event Name | Type | Age | Area |
---|---|---|---|
Cambrian explosion (begins) | Evolutionary event | 541 - 513 ± 3 Ma | Global |
Gondwana formation (concludes) | Continental Assembly | ~550 - ~500 Ma | Global |
Damara orogeny (concludes) | Orogeny | ~550 - ~495 Ma | Namibia |
Zambezi Belt orogeny (late) (concludes) | Orogeny | ~550 - ~520 Ma | Zambia and Zimbabwe |
Ross orogeny (concludes) | Orogeny | ~550 - ~480 Ma | Antarctica |
Avalon explosion (concludes) | Evolutionary event | ~575 Ma | Global |
Acraman impact (concludes) | Impact Event | ~590 Ma | South Australia |
Beaverhead impact (concludes) | Impact Event | ~600 Ma | Montana, USA |
Timanide orogeny (concludes) | Orogeny | ~620 - ~550 Ma | Europe |
Beardmore orogeny | Orogeny | 633 - 620 Ma | Antarctica |
Marinoan glaciation ("Snowball earth") (concludes) | Glaciation Event | ~650 - ~635 Ma | Global |
Cadomian orogeny (concludes) | Orogeny | ~660 - ~540 Ma | Europe |
Sturtian glaciation | Glaciation Event | 717.4 ± 0.1 - ~660 Ma | Global |
Rodinia breakup | Continental Breakup | 750 - 633 Ma | Global |
Pannotia supercontinent (begins) | Supercontinent | 750 - 530 Ma | Global |
Pan-African orogeny (concludes) | Orogeny | ~870 - ~550 Ma | Africa |
Zambezi Belt orogeny (early) (concludes) | Orogeny | ~890 - ~880 Ma | Zambia and Zimbabwe |
Late Ruker / Nimrod orogeny | Orogeny | 1000 ± 150 Ma | Antarctica |
First sexual reproduction (concludes) | Evolutionary event | ~1200 Ma | Global |
Grenville orogeny | Orogeny | 1250 - 980 Ma | Northern America, Scotland |
Sveconorwegian orogeny (concludes) | Orogeny | ~1250 - ~900 Ma | Europe |
Rodinia assembly (concludes) | Continental Assembly | ~1300 - ~900 Ma | Global |
Ur joins Rodinia (concludes) | Continental Assembly | ~1300 - 1071 Ma | Global |
Kibaran orogeny | Orogeny | 1400 - 1000 Ma | Mid to Southern Africa |
Columbia (Nuna) supercontinent breakup | Continental Breakup | 1425 ± 75 - 1250 ± 50 Ma | Global |
Gothian orogeny (concludes) | Orogeny | ~1750 - ~1500 Ma | Europe |
Sudbury impact | Impact Event | 1850 ± 3 Ma | Sudbury, Ontario |
Early Ruker orogeny | Orogeny | 2000 - 1700 Ma | Antarctica |
Svecofennian orogeny (concludes) | Orogeny | ~2000 - ~1750 Ma | Europe |
Vredefort impact | Impact Event | 2023 ± 0.004 Ma | Free State Province, South Africa |
Columbia (Nuna) supercontinent assembly | Continental Assembly | 2125 ± 125 - 1780 ± 70 Ma | Global |
Eburnean orogeny (concludes) | Orogeny | ~2200 - ~2000 Ma | West Africa |
Huronian glaciation (concludes) | Glaciation Event | ~2400 - ~2100 Ma | Global |
Algoman/Kenoran orogeny (concludes) | Orogeny | ~2700 - ~2500 Ma | North America |
Great Oxygenation Event (concludes) | Major Climatic Event | ~3500 - ~850 Ma | Global |
Overview of geological time
List all geological events