Continental rifts have a diverse suite of igneous rocks associated with them because melting occurs:
A) in the mantle and in the crust
B) only in the crust
C) only in the mantle

Question

Quizplus · Accepted Answer

Continental rifts feature a diverse suite of igneous rocks because melting can occur both in the mantle, due to decompression and heat from upwelling mantle material, and in the crust, as a result of heating by mantle-derived magmas.

Continental Rifts Have a Diverse Suite of Igneous Rocks Associated