Question

1. the pressure required for metamorphism can be generated by

a. pressure from the weight of overlying rock
b. heat from magma bodies in contact with surrounding rock
c. cementation and lithification
d. hydrothermal solutions

Explanation:

Metamorphism requires pressure which can come from the weight of over - lying rock. Heat from magma provides temperature change not pressure for metamorphism. Cementation and lithification are processes related to sedimentary rock formation, not pressure for metamorphism. Hydrothermal solutions are related to chemical - alteration during metamorphism but not the source of pressure.

Answer:

A. Pressure from the weight of overlying rock