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Deep Rocks in High Places   

The vast majority of mountain ranges worldwide are composed of rocks that formed at deep levels within Earth's crust. Yet, they are exposed at high elevations today. To resolve these basic field relations, slow-rate geologic processes such as crystallization, sedimentation, metamorphic diffusion, tectonic uplift, and erosion must be invoked. These observations along with field studies can only be explained by long-lived, geologic time associated processes. This class will discuss the concept of geologic time and provide geologic examples of why deep rocks are found in high places.

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