Mass Movement .

• collective term for all downslope movements
• triggered by steep slopes (gravity) and material that loses resistance
  
  
• angle of repose -
  
  

Slow Mass Movement

• creep -
  
  
  
• solifluction -
  
  

• landslide -
  
  
  
• rockslide -
  
  
  
• rockfall -
  
  
  
• slump -
  
  
  
• earthflow -
  
  
  
• mudflow -