Mt. Whitney, California, composed of Cretaceous Granodiorite.

At an elevation of 14,505, Mt. Whitney reaches the highest peak in the conterminous United States, and like much of the Sierra Nevada, it consists of Cretaceous granodiorite, a rock intermediate in composition between granite and diorite.

On to Intrusive Contact, southern Sierra Nevada.
Back to intrusive igneous rock types.

Back to Igneous Rock Photos
Back to Geology Pictures