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| Did Westward Subduction Cause Cretaceous–Tertiary Orogeny in the North American Cordillera? |
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| | by | Robert S. Hildebrand
| | Year Published: | 2009 | | Total Pages: | 71 | | ISBN: | 9780813724577 | | Product Code: | SPE457 | | 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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