File:North america craton nps.gif
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North_america_craton_nps.gif (512 × 599 pixels, file size: 32 KB, MIME type: image/gif)
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 16:06, 16 September 2005 | ![]() | 512 × 599 (32 KB) | commons>Saperaud~commonswiki | North American craton. The brown area shows the part of the North American continent that has been stable for over 600 million years. This region is made up of a basement older Precambrian metamorphic and igneous rock that is most |
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