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craton |
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cratonThe 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. 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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| 2) that identifies that piece of crust and which can be expected to match, at least in part, the "bar code" from a distant craton that has since rifted off and been dispersed around the globe. The craton of southern Africa, however, hovers as a vast plateau about a kilometer above sea level. The Sask craton axis runs directly through the area of the joint venture. |
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