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

Partial Melting

The process where only a portion of a solid is melted, which is common in the Earth's mantle and crust.

Felsic Magma

Magma that is rich in silica and lighter elements, leading to lighter-colored rocks such as granite.

Source Region

Areas where air masses originate, having distinct temperature and humidity characteristics based on the underlying surface.