How can subduction result in the emplacement of batholiths?
A)Partial melting of the mantle overlying the subducting plate creates magma.
B)Decompression melting of the plate creates magma.
C)Friction of descending plate creates magma.
D)Pillow basalts get subducted with plate and forced into overriding plate.

Question

Quizplus · Accepted Answer

When the oceanic plate subducts beneath the continental plate, it sinks into the mantle and carries water with it. This water interacts with the overlying mantle to create partial melting. This partially melted material is less dense than the surrounding rock and rises upward to form magma chambers, which eventually cool and solidify to form batholiths.

How Can Subduction Result in the Emplacement of Batholiths