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craton |
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craton (krā`tŏn): see continent continent, largest unit of landmasses on the earth . The continents include Eurasia (conventionally regarded as two continents, Europe and Asia ), Africa , North America , South America , Australia , and Antarctica . ..... Click the link for more information. . craton [′krā‚tän] (geology) A large, stable portion of the continental crust. Cratons are the broad heartlands of continents with subdued topography, encompassing the largest areas of most continents. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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| 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. 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. 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). |
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