Thermal (contact) metamorphism occurs
A)in areas surrounding igneous intrusions.
B)only where gneiss is in contact with schist.
C)as a consequence of the sinking of a large geologic terrane to great depth.
D)only at the surface, where rock is in contact with the atmosphere.

Question

Quizplus · Accepted Answer

Thermal (contact) metamorphism occurs in areas surrounding igneous intrusions, where the rocks in contact with the intrusion are subjected to high temperatures and pressures, leading to changes in mineralogy and texture.

Thermal (Contact) Metamorphism Occurs