Convergent boundaries are areas where two or more tectonic plates collide. The impact of the colliding plates can cause the edges of one or both plates to buckle up into mountain ranges or one of the plates may bend down into a deep seafloor trench. The process of convergence can lead to the formation of volcanoes, earthquakes, orogenesis, destruction of lithosphere, and deformation. The geologic features related to convergent boundaries vary depending on the types of crust involved. When two plates collide, the crusts can push together to form mountains, volcanoes, or subduction zones that form large trenches. At convergent boundaries, oceanic crust is often forced down into the mantle where it begins to melt. Magma rises into and through the other plate, solidifying into granite, the rock that makes up the continents. Thus, at convergent boundaries, continental crust is created and oceanic crust is destroyed.