noun
- loose rock debris that has accumulated at the base of a slope through gravitational processes
Usage: geological
Examples
- The geologist studied the colluvium deposits at the foot of the mountain.
- Heavy rains caused the colluvium to shift and block the hiking trail.
- The colluvium consisted mainly of weathered granite fragments.
- Engineers had to stabilize the colluvium before building the road.
- The archaeological team found artifacts buried in the colluvium layer.
- Colluvium often forms fan-shaped deposits below steep hillsides.