Metamorphic core complexes result from continental extension, low angle detachment and other types of faults, and isostatic rebound that exposes deep crustal metamorphic rocks such as the mylonitic quartzite exposed in the Northern Snake Range, in northeast Nevada. This type of faulting can quickly (in geology time) cause tectonic denudation, and is how we get some of the deeply metamorphosed rocks up to the surface. See the ALT text for more details.

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