Volcanism at convergent plate boundaries is due to decompression melting..

Question

Quizplus · Accepted Answer

Volcanism at convergent plate boundaries is primarily due to the melting of the subducted oceanic plate and the overlying mantle wedge, caused by the addition of water and other volatiles, which lowers the melting point of the mantle material, rather than decompression melting. Decompression melting is more associated with divergent plate boundaries and mantle plumes.

Volcanism at Convergent Plate Boundaries Is Due to Decompression Melting