Question

Changes that occur over large scale areas of rock are most likely due to contact metamorphism.

Answer 1

nope. regional metamorphism.

Answer 2

Contact metamorphism is when a rock is metamorphosed by contact with magma and therefore undergoes metamorphism. As you can imagine, this type of metamorphism only happens around the magma that has intruded and not over a large area.

Answer 3

cool-cool?

Answer 4

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Contact metamorphic rocks are usually known as hornfels. There are two primary types of metamorphism:
\(\to\) Regional Metamorphism
\(\to\) Contact Metamorphism
\(Ref:\) http://darkwing.uoregon.edu/~drt/Classes/201_99/Rice/Metamorphic.html

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