The Precambrian tectonic activity in the Black Hills region where the subducting lithosphere (Trans-Hudson Province) is being subducted beneath the Wyoming Archean Province. The Black Hills and Devils Tower National Monument would be located in the Back-arc basin between 1,710 and 1,880 Ma.
The Precambrian tectonic activity in the Black Hills region where the subducting lithosphere (Trans-Hudson Province) is being subducted beneath the Wyoming Archean Province. The Black Hills and Devils Tower National Monument would be located in the Back-arc basin between 1,710 and 1,880 Ma.
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Source: Trista L. Thornberry-Ehrlich, Colorado State University.