EOSC 110 Chapter Notes - Chapter 9: Mass Wasting, Debris Flow, Shear Strength
Document Summary
Movement in which bedrock, rock debris, or soil moves downslope in bulk, or as a mass, because of the pull of gravity. Landslide, general term for the slow to very rapid descent of rock or. A climate in which rain drizzles much of the year will have thick vegetation with roots that inhibit mass wasting. Prolonged period of rainfall or short-lived heavy precipitation will make mass wasting more likely. Cold climate, freezing and thawing contribute to downslope movement. Normal force, perpendicular to the slope and it"s the component of gravity that tends to hold the block in place. Shear force, parallel to the slope and indicates the block"s ability to. Shear strength, resistance to movement or deformation of that soil. When soil is saturated with water, it becomes less viscous and is more likely to flow downslope. A little bit of water keeps the soil together but too much causes a landslide.
