Esci

water - saturated flow which contains 20-40% water; above 40% water content, slurry flows grade into streams.

common wherever water cannot escape from the saturated surface layer by infiltrating to deeper levels; creates lobes and sheets of debris.

results from heavy rains causing soil and regolith to be saturated with water.

highly fluid, high velocity mixture of sediment and water

contains low amounts of water, 0-20% water; fluid-like behavior is possible by mixing with air.

slowest type of mass wasting requiring several years of gradual movement to have a pronounced effect on the slope.

involves fine-grained material such as clay and silt and usually associated with heavy rains or snowmelt.

forms in dry or nearly dry granular sediment with air filling the pore spaces such as sand flowing down the dune face.

very high velocity flows involving huge masses of falling rocks, debris, soil, and trapped air racing down in very steep mountain ranges.