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craton
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    Also found in: Dictionary/thesaurus, Encyclopedia, Wikipedia 0.06 sec.

craton

The relatively stable core of a continent that is not currently affected by tectonics along plate boundaries. Cratons generally consist of highly deformed metamorphic rock that formed during ancient orogenic explosions.

Cratons exist in the hearts of all the continents, a typical example being the Canadian Shield.



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? Mentioned in ? References in periodicals archive
 
Scientists got their first inklings that cratonic plates differ from plates under oceans and the younger, deformed parts of continents, called orogenic zones, in the 1960s.
Rooting for continental roots; the discovery that the old cores of ... by Weisburd, Stefi / Science News
recognize and document the trend fairway as analogous to the Canadian Foothills and Arkoma Spiro/Wapanucka trends, both exhibiting prolific Cratonic Margin plays as is the case in the Val Verde Basin.
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EM1 may be delaminated Archean subcontinental lithosphere, given that the most extreme isotopic examples come from some Cenozoic, cratonic mafic magmas (Greenough and Kyser, 2003).
Igneous rock associations 5. oceanic island volcanism II: mantle ... by Mallory-Greenough, Leanne M. / Geoscience Canada
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