Wasting The downslope movement of rock, regolith, and soil under the direct influence of gravity. Does not require a transporting medium. It is the process that takes place between weathering and erosion. From slow imperceptible creep to fast moving avalanches. Controls on Mass Wasting Gravity is the controlling force.
Water is a factor.
Destroys cohesion or internal resistance between particles. Creates buoyancy for masses of regolith and soil, thereby reducing the frictional coupling with the underlying substrate. Adds considerable weight to the mass of material. Oversteepening of slopes is a factor. Rock debris is stable at slope angles less than the angle of repose.