Final answer:
The Sierra Nevada range in California consists mainly of granite rocks formed through geological processes like convergence and subduction, resulting in unique topography shaped by recent extensional stress.
Explanation:
The Sierra Nevada range in California is mainly composed of granite rocks. These mountains were formed through convergence and subduction processes, resulting in the exposure of massive granite batholiths due to erosion of ancient volcanoes. The topography of the Sierra Nevada range has been shaped by recent extensional stress, creating large fault blocks.
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