Morrow Mountain is located on the island arc and is fed by magma. The convergence plate boundary is associated with the island arc. When two tectonic plates collide, the plate with thin oceanic crust subducts beneath the plate with thick continental crust.
A convergent boundary occurs when two or even more lithospheric plates collide on Earth. Subduction is the process by which one plate slides beneath the other. The Wadati-Benioff zone, which defines the subduction zone, is a plane where many earthquakes occur.
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