9. Mass Movement

• mass movement - the movement of material (scree/regolith) down a slope due to gravity
• factors to mass movement

  • water - can lubricate soil
  • slope gradient
  • vegetation - roots can hold onto soil
  • human activity - digging, building
• soil creep - the movement of soil due to the weight of the soil above it
• landslides - a mass of rock, soil or vegetation that has moved downhill
• bogburst - when peat becomes saturated with water
• mudflow - when soil is saturated with water and flows downhill at high speed
• Lahar - A mixture of mud, rock, and water that flows down a slope.
• scree/regolith - a rocky outcrop of loose material