Weathering

Physical (mechanical) weathering processes: freeze-thaw, heating/cooling, salt crystal growth, pressure release (dilatation), and vegetation root action.

Chemical weathering processes: hydrolysis, hydration, and carbonation.

General factors affecting the type and rate of weathering: climate, rock type, rock structure, vegetation, and relief.

Specific factors affecting the type and rate of weathering: temperature and rainfall (Peltier diagram).