GEOG 1350 Lecture Notes - Lecture 4: Semi-Arid Climate, Debris Flow, Mudflow
6 Mar 2017
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Document Summary
Rock avalanche - the downward and outward movement of fragmented rock at a high velocity. Fall - type of landslide which the sediment or rock bounds and rolls down a steep slope. Flow - type of landslide in which material moves downslope in a viscous liquid manner with high velocity. Slump - type of landslide characterised by sliding along an upward-curved slip surface. Debris flow - rapid downward movement of water-saturated materials ranging in size - triggered by heavy rain, rapid melting, or sudden drainage of a lake or pond. Driving forces - a force that increases the downward-direction of a slope. Resisting forces - a force that decreases the downward-direction of a slope. Factor of safety - a ratio of resisting to driving forces on a slope. Subaqueous landslides - landslide that occurs on the floor of a body of water ie) sea.
