10.3 Sediment Flows

In the sediment flow the material flows down hill mixed with water or air. They can be of two types depending on the amount of water present.

Slurry Flows are sediment flows that contain between 20 to 40% water. As the water content increases above 40%, slurry flows grade into streams. Major Types of slurry solifluction, debris flow and mud flow.

Granular Flows are sediment flows that contain between 20 and 0% water. Granular flows are possible with little or no water as well. Fluid-like behavior is given in these flows by mixing with air. Each of these classes of sediment flows can be further subdivided on the basis of the velocity at which flowage occurs. Major types of granuler flows are creep, earth flow again flow & debris avalanche.