All those movements are included in the mass movement, under which massive debris of rocks are displaced in accordance to the slope by gravitational force. In mass movement, there are creeps, flows, slides and falls of debris obtained from rocks. Weathering is not necessary in mass movement because in this, the fall of original rocks also start in accordance to the slope along with the weathered materials.
Mass movement occurs also due to gravitational force. There is no direct connection to the factors of erosion in this. Materials present their resistance on the slope. But due to gravitational force, they are generally not successful. Weak materials, thin bedded rocks, faults, steep slope, lack of adequate vegetation, etc. are the important helping factors of mass movement.
