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Landslides


Landslides  
  
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What are the three major players of a landslide?
 

1. Climate and Meteorological Events
2. Lithology, structural controls, gradient and surface materials.
3. Vegetation and landuse effects
Define mass wasting?
 
The downslope movement of rock or colluvium due to gravity
What are the four main types of mass wasting?
 

1. fall
2. slide
3. slump-flow
4.creep
What are the four variables of landslides?
 

-type of material
-type of movement
-water content
-velocity
What are the three factors triggering landslides:
 

a) Climatic Triggers- short term meteorological events.
- Climate variability
b) Human Factors- removal of vegetation, improper drainage or alterations of subsurface flow
c) Natural- river undercutting of slopes, and seismicity

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