The effects of faults on different types of folded sequence is broadly same as in plainly dipping strata. But with changes in altitude of faults or that of rocks, quite complicated results may be seen.

In highly oversimplified situation, type of fault likely to form is related to stress field operating in a given area. Thus, talking in terms of three principal stresses, normal faults would form when, maximum stress is vertical.

When a given slope is believed to be result of both of se processes, fault scarp and fault-line scarp, scarp is of composite type, and is called composite-fault scarp.

Thrust faults are, broadly speaking, such varieties of reverse faults in which hanging wall has moved up relative to foot wall.

In faults, concept of walls is very important and must be understood very clearly. In a rock body, when a fracture takes place, it divided rock into two parts or two blocks.

A group faults that appear emerging outward from a common central region are classified as radial faults. The area is divided into blocks with inwardly tapering ends.

Rubbing and mutual shearing of blocks during faulting, especially in brittle rocks, often produces typical crushed materials from involved blocks that are useful indicators of faulting in that region. The most common and important products are: Gouge, Fault breccia and Mylonite.

Thrust faults are types of reverse faults in which hanging wall has moved up relative to foot wall and faults dip at angles below 45 degrees. Faults dipping above 45 degrees with hanging wall having gone up are n called as reverse faults.

Oblique faults cause an offset in sequence, which is associated with eir a gap or an overlap depending upon downthrow direction.

It may be easy to locate fault planes or fault surfaces in small scale and in rar recent faults. In older and especially major faults spreading over miles of area, however, extensive field work including drilling or subsurface investigations using geophysical methods may be required to determine se structures.