What is "mudflows"

Usage examples of "mudflows".

We recognize that, with objects of all sizes falling out of the sky, with the surface rebounding, slumping and reconfiguring itself after each impact, and with ancient water and mudflows and modern windborne sand sculpting the surface, a wide variety of landforms must be generated.

It lies in a landscape where many low hills have been moulded into odd forms, perhaps by some mixture of ancient mudflows and subsequent wind erosion.