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Showing 1 to 1 of 1 for “"Precambrian topography"”.
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The Midcontinent exposed: Precambrian basement topography, and fault-and-fold zones, within the cratonic platform of the United States
… American craton. This region is underlain by Precambrian basement formed dominantly during Proterozoic accretionary orogenies. It was modified by Proterozoic anorogenic felsic magmatism and was cracked by several episodes of rifting. Subsequently, when North America was part of a …