If you were a geologist, how would you go about studying regional metamorphosis?
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Metamorphic rock is a type of rock that forms as a result of an existing rock remelting as the result of extreme heat or pressure. Often metamorphic rocks retain some characteristics of the parent rock from which it is derived. There are two types of metamorphosis that rocks can undergo, contact metamorphosis and regional metamorphosis. Regional metamorphosis occurs when large pockets of molten rock rise to up in the crust, in a similar manner that hot air rises. As a result, the rocks that lie over this hot pocket of magma is partially melted and transformed in a wide geographic area. http://www.maroon.com/bigbend/met/index.html
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The rest of this response is according to Monroe and Wicander (1995), which is referenced below:
Most metamorphic rocks result from regional metamorphism, which occurs in large areas and usually caused by tremendous temperatures, pressures, and deformities within deeper portions of the Earth's crust. Geologists study regional metamorphosis by identifying the gradiation in metamorphism (along convergent plate margins) through identifying the metamorphic minerals that are present. Certain metamorphic minerals are associated with different heat and pressures, and thus ...
From the perspective of a geologist, this solution explains how to study regional metamorphosis.