Landslide

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These are known as relatively rapid movements. the material involved the relatively dry.the size and shape of the detached mass depend on the nature of the discontinuities in the rock. the degree of weathering and the steepness of the slope. depending upon the type of movement of material several types are identified in this category.
slump is slipping of one or several units of rock
                                          Fig: Slumping of debris with backward rotation.
debris with a backward rotation with respect to the slope over which the movement takes place Rapid rolling and sliding of earth debris without backward rotation of mass is known as debris slide. debris fall is nearly a free fall of earth debris from a vertical and overhanging face. sliding of individual rock masses down bedding joint or fault surfaces is rockslide.

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