Mass Movements 2 Flashcards
1
Q
Different Kinds of Mass Movements(from slow to fast)
A
Solifluction/Creep Slump Mudflow Debris Slide/Rock Slide Snow Avalanche/Debris Avalanche Rock Fall Debris Fall
2
Q
Classifications of Movement
A
Rocks- Fall/Slide
Earth(mud)- Slide/Flow/Slump
Creep-unique
3
Q
Landslide
A
rapid downhill movement of rock and erosional debris
4
Q
What causes landslides?
A
- slope over steepened by erosion
- heavy rainfall
- excess of water
- trigger
5
Q
Debris Flow
A
thick,slurry of mud,water, and rock
6
Q
Lahars
A
occurs when volcanic activity melts glacier or snow fields
7
Q
Earthflows
A
relatively slower than rockslides and debris flows
8
Q
Solifluction
A
occurs when water can’t escape the saturated layer by infiltration
mostly in permafrost regions
9
Q
Measures to prevent landslides
A
- reshaping the slope
- surficial drain and water removal
- anchoring and micro poles
- vegetation plots
