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|solifluction||Mass wasting involving the slow downslope movement of water-saturated surface materials; especially the flow at high elevations or high latitudes where the flow is underlain by frozen soil.|
Mass movement is the movement of rock and soil down slope under the influence of gravity. Rock falls, slumps, and debris flows are all examples of mass wasting.
Over time, rockfalls will accumulate as talus (an accumulation of rock and soil that forms a rocky slope at the base of a cliff or escarpment). … Slumps typically have a fault-like escarpment (or scarp) and fissures at their upper end.
The most destructive types of mass movement are landslides and mudslides.
are covered with snow and ice. If they erupt, melted snow and ice mixes with mud and volcanic ash and flows down mountain. Volcanic flows are called lahars. A slide happens when a section of soil or rock suddenly gives way and moves down a slope.
Mass movement is the movement of surface material caused by gravity. Landslides and rockfalls are examples of very sudden movements of this type. Of course geological agents such as water, wind and ice all work with gravity to cause a leveling of land.
In the modern history of India, the term ‘mass movement’ has been used to refer to two entirely different things. One is the Gandhian nationalist movement from the second to the middle, and the other the Dalit (Hindu outcaste groups) conversion to Christianity en masse.
What is Landslide? A landslide is defined as the movement of a mass of rock, debris, or earth, down a slope due to the action of gravity. Areas with steep slopes, for example, mountainous regions, are particularly susceptible to landslide hazards.
fall through the air and land at the bottom of a slope. Falls descend straight down, where topples lean forwards before falling. The pile of rubble at the base of the slope is called a talus cone.
Types of mass movement
15.2 Classification of Mass Wasting
|Failure Type||Type of Material|
|Creep or solifluction||Soil or other overburden; in some cases, mixed with ice|
|Slump||Thick deposits (m to 10s of m) of unconsolidated sediment|
|Mudflow||Loose sediment with a significant component of silt and clay|
|Debris flow||Sand, gravel, and larger fragments|
These include falls, topples, translational slides, lateral spreads, and flows.
movements are included in the general term “landslide,” the more restrictive use of the term refers only to mass movements, where there is a distinct zone of weakness that separates the slide material from more stable underlying material. The two major types of slides are rotational slides and translational slides.
The five kinematically distinct types of movement are described in the sequence: – fall, – topple, – slide, – spread, – flow.
If the material drops through the air, vertically or nearly vertically, it’s known as a fall. If the material moves as a mass along a sloping surface (without internal motion within the mass), it’s a slide. If the material has internal motion, like a fluid, it’s a flow.
define the type of mass movement of fall
type of mass movement flow
topple mass movement
define the type of mass movement slide
causes of mass movement
mass movement examples
define the type of mass movement spread
3 types of mass movement