colluvium

thumb|Erosion on Koh Tao Island Colluvium (also colluvial material or colluvial soil; from the Latin colluvio 'jumbled') is a general name for loose, unconsolidated terrigenous sediments (diamicton) that have been deposited at the base of hillslopes by either rainwash, sheetwash, slow continuous downslope creep, or a variable combination of these processes. Colluvium is typically composed of a heterogeneous range of rock types and sediments ranging from silt to rock fragments of various sizes. This term is also used to specifically refer to sediment deposited at the base of a hillslope by unconcentrated surface runoff or sheet erosion.

== Location == thumb|This Scree|talus accumulation is an example of colluvium