9.2 Hazards resulting from mass movments

Question 1

Slide

Answer 1

Type of mass movement when a section of a hillside becomes unstable, shears away and moves downhill in a sudden, rapid movement.

Question 2

Slump/slip

Answer 2

Material moves in a rotational way downslope under gravity along an inclined slip plane. The slip plane is usually curved (hence rotational slip).

Question 3

Flow

Answer 3

The loose material moves downslope under gravity, keeping contact with the surface. Individual particles move separately within the flow.