mass movements  search
NTavalanches
 debris avalanches
 debris flows
 earthflows
 lahars
 landslides
 mudflows
 rockfalls
 rockslides
 slumping
UFmass wastage
 mass wasting
 movements, mass
RTerosion
 slope stability
 creep
 geomorphology
 flow texture
 flows
 gravity flows
 talus slopes
 liquefaction
 natural dams