water freezes in a crack in a rock
The mechanical weathering involves erosion,wind pressure.
frost wedging ?
frost wedging
frost wedging
frost wedging
frost wedging
Eolian Weathering. Wind breaking down and moving particles.
Mechanical weathering
water
Physical (mechanical) weathering occurs when a rock is broken into smaller pieces without a change in chemical structure. Abrasion, fracture by freezing, plant root growth expansion of fractures, rock falls; these are forms of physical weathering.
Chemical weathering in the warm, wet season and mechanical weathering in the cool, dry season.
The most common cause of chemical weathering is oxygen