Paleomagnetic directions from early Miocene volcanic flows indicate that a large part of the central Mojave Desert has been tectonically rotated. Stratigraphic relations and isotopic ages suggest that two separate clockwise rotations have occurred. An early Miocene rotation of 50° ±15.6° is coincident in time and space with opening of the Daggett extensional terrane. A post-early Miocene rotation of 30° to 50° may have affected the Alvord Mountains and the immediate vicinity.

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