Metamorphic rocks found in cratons are exposed during orogenesis by ________.
A)magmatic intrusion
B)epeirogeny
C)shear strain
D)exhumation

Question

Quizplus · Accepted Answer

Metamorphic rocks in cratons are typically buried deep within the Earth's crust and are brought to the surface by a process called exhumation, which is often associated with orogenesis (mountain-building). This can occur through a variety of mechanisms, including erosion, faulting, and uplift. Magmatic intrusion (A) is not typically associated with the formation of metamorphic rocks in cratons, although it can play a role in some cases. Epeirogeny (B) refers to broad-scale uplift or subsidence of a large region and is not directly related to the formation or exposure of metamorphic rocks. Shear strain (C) can contribute to the formation of certain types of metamorphic rocks, but it is not a mechanism by which rock is brought to the surface.

Metamorphic Rocks Found in Cratons Are Exposed During Orogenesis by ________