Slump
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- For the manga character, see Dr. Slump.
Slump is a form of
mass wasting event that occurs when loosely consolidated materials or rock layers move a short distance down a slope. When the movement occurs in soil, there is often a distinctive rotational movement to the mass. This results in internal deformation of the moving mass consisting chiefly of overturned folds called "sheath folds." The surface of the mass often remains relatively undisturbed, especially at the top. The area where the mass broke away from the slope is often cliff-like and concave. This area is known as the "scarp."
The speed of slump varies widely, ranging from meters per second, to meters per year. Sudden slumps usually occur after earthquakes or heavy, continuing rains.
See also
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