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The Swazian is a poorly defined geological stage in South Africa extending from about four to three billion years ago,^[1] encompassing some of the Hadean and much of the Archean on the Geologic time scale. Other scales^[2] assign the Swazian to parts of the Paleoarchean and Mesoarchean, 3.5 to 2.8 billion years ago. The Swazian is not recognized by the International Commission on Stratigraphy nor by the Geological Society of America, the two most widely accepted developers of international geologic time scales.

References

Geological formations

Palaeoarchaean	Bushveld Igneous Complex Fig Tree Formation Komatii Formation Moodies Group Onverwacht Group Transvaal Supergroup
Paleozoic	Carboniferous Dwyka Group Ganigobis Formation Devonian Bokkeveld Group Table Mountain Sandstone Permian Abrahamskraal Formation Balfour Formation Dwyka Group Ganigobis Formation Teekloof Formation Whitehill Formation Ordovician Soom Shale
Mesozoic	Cretaceous Uitenhage Group Buffelskloof Formation Enon Formation Kirkwood Formation Sundays River Formation Kalahari Deposits Jurassic Drakensberg Group Enon Formation Uitenhage Group Karoo Supergroup Beaufort Group Abrahamskraal Formation Balfour Formation Katberg Formation Middleton Formation Teekloof Formation Dwyka Group Ecca Group Whitehill Formation Stormberg Group Bushveld Sandstone Clarens Formation Elliot Formation Triassic Elliot Formation Katberg Formation Molteno Formation Normandien Formation
Cenozoic	Algoa Group

‎Tectonics and orogeny

Volcanism	List of volcanoes in South Africa Pilanesberg Pilanesberg Game Reserve Prince Edward Islands Diatremes Big Hole Finsch diamond mine Jagersfontein Mine Koffiefontein mine Barberton Greenstone Belt Drakensberg Karoo-Ferrar
Earthquakes	1620 Robben Island earthquake 1969 Tulbagh earthquake 2006 Mozambique earthquake 2014 Orkney earthquake
Impact craters	Kalkkop crater Morokweng impact structure Tswaing crater Vredefort impact structure
Meteorites	Bellsbank meteorite

‎Mineral deposits
Kimberlite Merensky Reef Witwatersrand Banket (mining term) Coal in South Africa Iron ore in Africa Platinum in Africa Titanium in Africa Uranium in Africa Minerals Council South Africa Department of Mineral Resources (South Africa) Department of Mineral Resources and Energy

Paleontology‎

Ordovician

Devonian

Carboniferous

Permian

Beaufort Group

Assemblages	Cistecephalus Assemblage Zone Daptocephalus Assemblage Zone Eodicynodon Assemblage Zone Pristerognathus Assemblage Zone Tapinocephalus Assemblage Zone Tropidostoma Assemblage Zone

Triassic

Assemblages	Cynognathus Assemblage Zone Lystrosaurus Assemblage Zone

Jurassic

Cretaceous

Paleogene

Neogene

Pleistocene

Other

Research and administration‎

Geologists	Hans Merensky
Paleontologists	Andrew Geddes Bain Lieuwe Dirk Boonstra Charles Kimberlin Brain Robert Broom Alfred Brown Anusuya Chinsamy-Turan H. Basil S. Cooke Alfred W. Crompton Daniel Rossouw Kannemeyer Andre Keyser James Kitching John Talbot Robinson George William Stow Eduard Meine van Zinderen-Bakker

Regional articles
Geology of Cape Town

Other
Pothole (geology) Steep structure Swazian

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