The downslope movement of soils and regolith is denoted by the term mass wasting.

Here's a breakdown of why:

* Mass wasting is a general term that encompasses all types of downslope movement of rock, soil, and regolith (unconsolidated rock fragments). It's driven by gravity and can occur in various forms, including:

* Creep: Slow, gradual movement of soil and rock downhill.

* Slumps: Downward sliding of a mass of rock or soil along a curved surface.

* Slides: Rapid movement of rock or soil along a planar surface.

* Flows: Movement of soil, mud, or rock debris saturated with water.

* Falls: Free-falling movement of rock or debris from a cliff or steep slope.

So, while "mass wasting" is the umbrella term, specific types of mass wasting describe the particular movement occurring.