Are there any clues to indicate slump potential in the marine clays?
Surface evidence of past and present earth movements should be taken as warning signs of future landslide potential. Previous slumps, and slumps that may be still active but very gradual, are sometimes indicated by depressions in the ground on the upper portions of slopes. The depressions form as a result of downward movement and backward tilting of blocks of clay at the heads of the slumps. Tilted trees on the affected ground are another good indication of slumps. However, it is usually difficult to predict the timing or rapidity of future slumps.
