cratón wikipedia - EAS
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See all on Wikipediahttps://en.wikipedia.org/wiki/CratonA craton is an old and stable part of the continental lithosphere, which consists of Earth's two topmost layers, the crust and the uppermost mantle. Having often survived cycles of merging and rifting of continents, cratons are generally found in the interiors of tectonic plates; the exceptions occur
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See moreThe term craton is used to distinguish the stable portion of the continental crust from regions that are more geologically active and unstable. Cratons can be described as shields, in which the basement rock crops out at the surface, and
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See moreExamples of cratons are the Dharwar Craton in India (also called the Karnataka Craton), North China Craton, the East European Craton,
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See moreThe process by which cratons were formed is called cratonization. There is much about this process that remains uncertain. However, the first cratonic landmasses likely formed during the Archean Eon. This is indicated by the age of
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See more• Dayton, Gene (2006). Geological Evolution of Australia. Sr. Lecturer, Geography, School of Humanities, Central Queensland University, Australia.
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Cratons have thick lithospheric roots. Mantle tomography shows that cratons are underlain by anomalously cold mantle corresponding to lithosphere more than twice the typical 100 km
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See moreThe long-term erosion of cratons has been labelled the "cratonic regime". It involves processes of pediplanation and etchplanation that
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See moreWikipedia text under CC-BY-SA license- https://en.wikipedia.org/wiki/List_of_shields_and_cratons
A craton is an ancient part of the Earth's continental crust which has been more or less stable since Precambrian times. Cratons whose ancient rocks are widely exposed at the surface, often with relatively subdued relief, are known as shields. If the ancient rocks are largely overlain by a cover of younger rocks then the 'hidden' craton may be referred to as a platform.
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- https://simple.wikipedia.org/wiki/Craton
A craton is the oldest part of a continental plate.It is an old and stable part of the continental lithosphere.. After surviving cycles of merging and rifting of continents, cratons are usually found in the interiors of tectonic plates.They are composed of ancient crystalline basement rock, which may be covered by younger sedimentary rock.They have a thick crust and deep roots that …
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- https://en.wikipedia.org/wiki/Superior_Craton
- The Superior Craton is a stable crustal block covering Quebec, Ontario, and southeast Manitoba in Canada, and northern Minnesota in the United States. It is the biggest craton among those formed during the Archean period. A craton is a large part of the Earth's crust that has been stable and subjected to very little geological changes over a long t...
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- https://en.wikipedia.org/wiki/Wyoming_craton
- The Wyoming Craton is a craton in the west-central United States and western Canada – more specifically, in Montana, Wyoming, southern Alberta, southern Saskatchewan, and parts of northern Utah. Also called the Wyoming Province, it is the initial core of the continental crust of North America. The Wyoming Craton was sutured together with the Superi...
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Craton - Wikipedia
nak.scottexteriors.com/cook-https-en.wikipedia.org/wiki/CratonA craton (/ ˈ k r eɪ t ɒ n /, / ˈ k r æ t ɒ n /, or / ˈ k r eɪ t ən /; from Greek: κράτος kratos "strength") is an old and stable part of the continental lithosphere, which consists of Earth's two topmost layers, the crust and the uppermost mantle.
- https://en.wikipedia.org/wiki/West_African_Craton
The West African Craton (WAC) is one of the five cratons of the Precambrian basement rock of Africa that make up the African Plate, the others being the Kalahari craton, Congo craton, Saharan Metacraton and Tanzania Craton. Cratons themselves are tectonically inactive, but can occur near active margins, with the WAC extending across 14 countries in Western Africa, coming …
- https://en.wikipedia.org/wiki/Slave_craton
Slave Craton is marked with A. Palaeomap of North American and Scandinavian cratons, basement rocks, and orogenic belts. The Slave Craton is an Archaean craton in the north-western Canadian Shield, in Northwest Territories and Nunavut. The Slave Craton includes the 4.03 Ga-old Acasta Gneiss which is one of the oldest dated rocks on Earth.
- https://en.wikipedia.org/wiki/Dharwar_Craton
The Dharwar Craton is an Archean continental crust craton formed between 3.6-2.5 billion years ago (), which is located in southern India and considered as the oldest part of the Indian peninsula.. Studies in the 2010s suggest that the craton can be separated into three crustal blocks since they show different accretionary history (i.e., the history of block collisions).
- https://en.wikipedia.org/wiki/North_Atlantic_Craton
The North Atlantic Craton (NAC) is an Archaean craton exposed in southern West Greenland, the Nain Province in Labrador, and the Lewisian complex in northwestern Scotland. The NAC is bounded by the Nagssugtoqidian orogen to the north and the 1.8–1.87 Ga Ketilidan–Makkovik mobile belt to the south. The latter can be linked to the Lewisian-Malin boundary in Scotland, …
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