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Contents of 15.2 What causes mass movements?

15.2 What causes mass movements?

• Mass movements occur if the gravitational force is stronger than the resistive strength of the rock or regolith.
• The resisting strength is the sum of all frictional resistance to movement and the cohesion between minerals in the rock or regolith.
• The magnitude of the gravitational force directed parallel to the slope is greater at steeper angles.