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    This view shows the breakwater near the entrance to Overton Beach Marina harbor. This view is looking west toward Bitter Ridge with the  Virgin Mountain in the distance. Outcrops of late Miocene-age sedimentary rocks crop out along the shoreline. Bitter Ridge consists of folded and thrust-faulted Paleozoic and Mesozoic-age sedimentary rocks. The Virgin Mountains in the distances consist mostly of sedimentary rocks of  Paleozoic-age rocks, roughly equivalent to the sequence exposed in the Grand Canyon. The complex structure of the area is a result crustal extensional tectonics associated with the  formation of the Basin and Range structure of the southern Basin and Range Province beginning in the Late Miocene time (Faulds and others, 2008).  |