What typically does not trigger mass movements?
Biology · Middle School · Mon Jan 18 2021
Answered on
Mass movements, also known as mass wasting, involve the movement of soil, rock, and debris down a slope due to gravity. Factors that typically do not trigger mass movements include:
1. Stable geological conditions: When the slope materials and structures are stable and strong, they are less prone to movement.
2. Low slope angles: Gentle slopes have less gravitational force acting to move materials downward.
3. Adequate vegetation: Plant roots help to bind soil and prevent erosion, thus reducing the likelihood of mass movements.
4. Low levels of saturation: Dry or well-drained soil is less likely to be involved in mass movements than saturated soils because water adds weight and can act as a lubricant.
5. Absence of seismic activity: Earthquakes can trigger mass movements, so areas without seismic activity have a reduced risk.
6. Controlled human activities: Avoidance of construction, mining, or other activities that destabilize slopes can prevent mass movements.