Mechanical weathering is also known as physical weathering. It is the disintegration of rock by mechanical processes and therefore depends on the application of force. Examples of mechanical weathering are:
- A large exfoliation dome in granite rock near bhongir (Bhuvanagiri) town in Andhra Pradesh.
- In rocks like granites, smooth surfaced and rounded small to big boulders called tors form due to exfoliation.
- Frost weathering occurs due to the growth of ice within pores and cracks of rocks during repeated cycles of freezing and melting.
- Sodium chloride and gypsum crystals in desert areas heave up overlying layers of materials and as a result, polygonal cracks develop all over the heaved surface