Lake Mead National Recreation Area
Location Map This view shows a nonconformity between steeply inclined layers of crystalline basement metamorphic rocks (Precambrian-age schist and gneiss) and overlying, nearly horizontal-bedded lava flows of Miocene age. This view is near river mile 55 near Indian Rapids (now submerged by Lake Mojave) (Beard and others, 2007).


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Last modified: 9/22/2010