When melting forms magma:
A) rocks in the source region generally are completely melted
B) partial melting produces a magma that is more felsic than the source
C) melting of the mantle generally produces felsic magma
D) melting of continental crust generally produces mafic magma
E) none of these

Question

Quizplus · Accepted Answer

Partial melting tends to produce magma that is more felsic than the source rock because the minerals that melt at lower temperatures are typically those that are richer in silica, which is a major component of felsic magma.

When Melting Forms Magma