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See all on WikipediaCraton - Wikipedia
Cratons are characteristically composed of ancient crystalline basement rock, which may be covered by younger sedimentary rock. They have a thick crust and deep lithospheric roots extending several hundred kilometres into Earth's mantle. See more
A 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 … See more
Examples of cratons are the Dharwar Craton in India, North China Craton, the East European Craton, the Amazonian Craton in South America, the Kaapvaal Craton in South Africa, the North American Craton (also called the Laurentia Craton), … See more
The process by which cratons were formed is called cratonization. Much about this process remains uncertain, with very little consensus in … See more
The term craton is used to distinguish the stable portion of the continental crust from regions that are more geologically active and unstable. Cratons are composed of two layers: a continental shield, in which the basement rock crops out at the surface, and a See more
Cratons have thick lithospheric roots. Mantle tomography shows that cratons are underlain by anomalously cold mantle corresponding to See more
The long-term erosion of cratons has been labelled the "cratonic regime". It involves processes of pediplanation and etchplanation that lead to the formation of flattish surfaces … See more
Wikipedia text under CC-BY-SA license List of shields and cratons - Wikipedia
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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West African Craton - Wikipedia
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 …
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Amazonian Craton - Wikipedia
The Amazonian Craton is a geologic province located in South America. It occupies a large portion of the central, north and eastern part of the continent and represents one of Earth's …
Craton — Wikipédia
See more on fr.wikipedia.orgUn craton (du grec κράτος = kratos - force), appelé aussi aire continentale, est une vaste portion stable du domaine continental par opposition aux zones instables déformées (les orogènes). Il forme un élément de lithosphère continentale possédant une identité géologique, notamment en termes de nature des roches …- Estimated Reading Time: 8 mins
Craton - Simple English Wikipedia, the free encyclopedia
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 …
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Superior Craton - Wikipedia
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. [1] .
Slave Craton - Simple English Wikipedia, the free …
The Slave Craton is an Archaean craton in the north-western Canadian Shield, in Northwest Territories and Nunavut. It has some of the oldest rocks on Earth. [1] It has ~2.73–2.63 Ga (billion years-old) greenstones and turbidite sequences. …
Category:Cratons - Wikipedia
Pages in category "Cratons" The following 40 pages are in this category, out of 40 total. This list may not reflect recent changes.
What is a craton? How many are there? How do they relate
A craton is a large, coherent domain of Earth's continental crust that has attained and maintained long-term stability, having undergone little internal deformation, except perhaps near its …
Craton - Wikiwand
Cratons are characteristically composed of ancient crystalline basement rock, which may be covered by younger sedimentary rock. They have a thick crust and deep lithospheric roots …
Wyoming Craton - Wikipedia
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 …
Category : Cratons - Wikimedia
Media in category "Cratons" The following 65 files are in this category, out of 65 total.
Laurentia - Simple English Wikipedia, the free encyclopedia
Laurentia is a large continental craton. It forms the ancient geological core of the North American continent. Originally, it included the core of Greenland and the northwestern part of Scotland, known as the Hebridean Terrane. Laurentia is also called the North American Craton.
Cratons – old and strong - Metageologist - All-geo
Dec 19, 2012 · Cratons are pieces of continents that have been stable for a over a billion years. As earth's plates drift along, mountains periodically rise and fall, plate boundaries appear and disappear. But cratons are like great …
Craton | Structure, Shield, Platform | Britannica - Encyclopedia …
craton, the stable interior portion of a continent characteristically composed of ancient crystalline basement rock. The term craton is used to distinguish such regions from mobile geosynclinal …
List of shields and cratons - Wikiwand
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 …
Craton - Encyclopedia.com
May 29, 2018 · Cratons are large regions of continental crust that have remained tectonically stable for a prolonged period of time, often a billion years or more. Precambrian cratons are …
Craton | Geology Wiki | Fandom
These felsic protocontinents (cratons) probably formed at hot spots from a variety of sources: mafic magma melting more felsic rocks, partial melting of mafic rock, and from the …
Cratons, Why Are You Still Here? - Eos
Mar 25, 2021 · However, such ancient rock, dating back more than 3 billion years (and perhaps even more than 4 billion years), has been found in different parts of the world (Figure 1). These …
Cratonization – how did the Archean cratons form?
Nov 11, 2023 · Cratonization refers to the process by which stable continental crust, known as cratons, formed during the Archean eon, approximately 4 to 2.5 billion years ago. Archean …
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