Deep trenches appear at these boundaries, caused by the oceanic plate bending downward into the Earth. Deep below the Earth's surface, subduction causes partial melting of both the ocean crust and ...

Most constructive plate boundaries are found on ocean floors ... Fault where the Pacific and the North American plates are sliding past each other.

Also known as subduction boundary, a convergent boundary occurs where one plate slides under another ... But rather than sliding smoothly, the plates build up tension, then release the tension ...

In regions of convergence, one plate can sink under another in a subduction zone, or two colliding plates can form a mountain belt. At divergent boundaries, plates move away from each other and ...