Mass movement

• What is mass movement?

  downhill movement of cliff material under the influence of gravity
• Mass movement types


  • landslides
  • mudslides
  • rockfall
  • slumping
• Slumping 


  the soft boulder clay holds rainwater and run-offs. Waves erode the base of the cliff, creating a wave-cut notch. The clay becomes saturated and forms a slip plane. The weight of the saturated cliff causes it to slump
• which type of mass movement involves fragments of rock breaking away from the cliff face, often due to freeze-thaw weathering?

  rockfall
• Which type of mass movement involves saturated soil and weak rock flows down a slope, typically where cliffs are made up of boulder clay?

  mudslide
• large blocks of rock sliding downhill is which type of mass movement?

  landslide