mass wasting Flashcards
What is mass wasting?
Downhill movement of masses of bedrock, rock debris or soil, driven by the pull of gravity.
what are landslides
landslides are a type of mass wasting it is a mass movement of material, such as rock,earth or debris, down a slope.
what is a flow?
A flow is a descending mass moves downhill as a viscous fluid.
what is a slide?
A slide is a descending mass remains relatively intact, and descending along well-defined surfaces.
what is a translational slide?
A translational slide is movement along plane parallel to motion.
what is rotational slide(slump)
movement along a curved surface.
what is a fall?
A fall is a material free falls or bounces down a clift.
What are steep slopes?
Shear forces maximized by gravity.
large relief?
Large elevation change from top of mountains/hills to valley floor.
lack of vegetation?
No roots to hold rocks / soil in place.
creep?
A creep is a very slow downslope movement of soil
Debris flow?
A debris flow is mass wasting in which motion takes place throughout the moving mass
Earthflow?
Debris avalanches are very rapid and turbulent.
Debris avalanches?
Are very rapid and turbulent.
Rockfall?
When a block of bedrock breaks free and falls or bounces down a cliff.
