Ocean- Continental Convergent Boundary

This type of convergent boundary also features a subduction zone (one plate descending beneath another plate). This boundary features an ocean trench and a continental volcanic arc.
As the ocean crust sinks/ subducts beneath the continental crusts, this ocean crust is destroyed. As the ocean crust is melted, forms magma, this magma can rise to the surface because the density of the magma is less than that of the rocks it was made from.