Subduction of one tectonic plate at a convergent plate boundary produces magma because the subdued plate melts when it approaches the intense heat of...

What does subduction produce?

Subduction produces lines of volcanoes over the subducting plate, parallel to the trench and perpendicular to the direction of plate motion. The types of volcanoes associated with subduction are composite volcanoes, also called stratovolcanoes They occur high in elevationl as parts of major mountain ranges.

Why does subduction produce magma?

This process, called subduction, typically forms a trench, a very deep ditch, usually in the ocean floor. As the rigid lithosphere pushes down into the hot, high-pressure mantle, it heats up. ... The increased water content lowers the melting point of the mantle rock in this wedge, causing it to melt into magma.