Faults result in the formation of block mountains. There are three main types of faults. They are
Types of Faults
Normal faults: Normal fault is a simple fault where the blocks of the rocks move up or down. In a normal fault, a piece of land may slide down along the fault plane.
Reverse faults: Because of compressional forces acting from opposite directions, a block of rock is forced up and over other rock against the slope of the fault plane.
Tear faults: When the blocks on either side of the fault are displaced horizontally or sideways, tear faults take place. Tear faults generally occur during earthquakes.
Also, Read Folding and Faulting