Actively deforming region of two tectonic plates or fragments of lithosphere that move toward one another and collide and the tender one moves under the other plate. The Convergent boundaries experience compression on the tectonic plates. Ocean trenches and mountain ranges are created Mountain ranges are formed by the collision between plates The himalayas West coast of South America between Nazca and south american plate Washington Oregon coastline
The tectonic plates slide sideways past each other and lithosphere is neither created or destroyed The transform boundaries experience shear stress on the tectonic plates. When tectonic plates slide horizontally past each other they form transform faults and fault zones They also make volcanic mountains and islands San Andres ,California known as San Andres fault.