What will happen if two oceanic plates collide?

Is this your um... homework? When two oceanic plates converge, the denser plate will subduct under the plate that is less dense, creating a deep sea trench at the point of subduction. read more

When two oceanic plates converge, the denser plate will subduct under the plate that is less dense, creating a deep sea trench at the point of subduction. As the subducted plate goes deeper into the mantle, the mantle material above it starts to melt to become magma. read more

When the oceanic plates collide, one subducts beneath the other resulting in formation of an oceanic island arc and volcanic eruption on this arc. During this volcanic activity new material will be added to the crust of the island, eventually forming a land with a continental crust. read more