Mass Movement

Question 1

Landslides

Answer 1

Occur on cliffs made from a softer rock and deposited material. Slips when lubricated, usually after heavy rainfall

Question 2

Rockfalls

Answer 2

Occur on cliffs undercut by the sea or on slopes, this is caused by mechanical weathering like freeze thaw

Question 3

Mudflow

Answer 3

Heavy rainfall can cause fine materials to flow downhill. The soil becomes saturated and can’t hold any more water so it keeps flowing downhill

Question 4

Rotational Slip/ Slumping

Answer 4

Softer materials overlies more resistant materials causing the cliff face to move downward

Question 5

Soil Creep

Answer 5

Occurs when there is slow almost impenetrable but continuous movement of individual soil particles