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Are you Ronald C. Blakey, author of the books below?
Ancient Landscapes of Western North America by Ronald C. Blakey Plate Tectonics by Wolfgang Frisch Plate Tectonics by Wolfgang Frisch Defining the Colorado Plateau - A Geologic Perspective by David D. Gillette Trails & Journeys by Jim Byrkit Plate Tectonics by Wolfgang Frisch Plate Tectonics by Wolfgang Frisch


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