What are the two most important sources of heat for metamorphism?
A) intrusive magma bodies and deep burial
B) intrusive magma bodies and heat from the core
C) deep burial and volcanism
D) radioactive decay and volcanism
E) radioactive decay and deep burial

Question

Quizplus · Accepted Answer

Intrusive magma bodies and deep burial are the two most important sources of heat for metamorphism. Intrusive magma bodies bring heat to the surrounding rocks, raising their temperature and causing metamorphism. Deep burial, on the other hand, causes an increase in temperature due to the geothermal gradient, which also leads to metamorphism. While other sources of heat, such as volcanism and radioactive decay, can also contribute to metamorphism, they are not as significant as intrusive magma bodies and deep burial.

What Are the Two Most Important Sources of Heat for Metamorphism