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Westward Subduction in the North American Cordillera

Full Title: Did Westward Subduction Cause Cretaceous-Tertiary Orogeny in the North American Cordillera?
Author: Robert S. Hildebrand

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This volume describes an iconoclastic model for the Cretaceous–Tertiary development of the Cordilleran orogen. Hildebrand argues that the orogeny was collisional in origin, caused by westerly-dipping subduction beneath an exotic ribbon continent named Rubia, and followed by development of an eastward-dipping subduction zone outboard of the collision zone. This model explains the origin of Laramide thick-skinned deformation, Cordilleran-type batholiths, early Tertiary metamorphic core complexes, Basin and Range extension, porphyry copper deposits, and the Pelona-Orocopia-Rand schists, and it helps resolve the longstanding Baja–British Columbia controversy.
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July 06, 2009
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Product Categories: B. Special Papers
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