What is the difference between a slide and a slump?
What is the difference between a slide and a slump?
Sliding allows the materials to fall downward in an inclined plane, whereas slumping allows the materials to fall downwcard along a curved plane. Explanation: Sliding and slumping are two of the distinct mass wasting processes, where the loose and unconsolidated materials falls downward under the influence of gravity.
What is slide and slump?
Slumps and slides are downslope movements of sediments above a basal shear surface where there is, respectively, significant and insignificant internal distortion of the bedding (Stow, 1986). In slumps, the bedding should be recognizable, otherwise they classify as debris flows. Idealized slump model.
What type of mass movement is slide?
A slide happens when a section of soil or rock suddenly gives way and moves down a slope. The material moves as a single mass along a slippery zone. The slippery zone is often made up of wet sediment. Creep is a very slow mass movement that goes on for years or even centuries.
What causes slumps and slides?
Causes of slumping include earthquake shocks, thorough wetting, freezing and thawing, undercutting, and loading of a slope. Translational slumps occur when a detached landmass moves along a planar surface.
What are the different types of mass movement?
There are four different types of mass movement:
- Rockfall. Bits of rock fall off the cliff face, usually due to freeze-thaw weathering.
- Mudflow. Saturated soil (soil filled with water) flows down a slope.
- Landslide. Large blocks of rock slide downhill.
- Rotational slip. Saturated soil slumps down a curved surface.
What is slump in mass movement?
Slump is common where clay-rich materials are exposed along a steep slope. Such oversteepend slopes naturally occur on the outside of meanders along the Red River. Slump is typically identified as the downward movement of a block of earth material along some curved surface of failure.
How are slumps and slides related?
Slides are a type of slump in the special case where the rupture surface is curved. Slumps are a type of slide in the special case where the rupture surface is curved. D. Slumps are a type of slide in the special case where the rupture surface is curved.
How are slumps and slides related how are slumps and slides related?
How are slumps and rockslides related to mass wasting?
With slumps and rockslides, we see the slope fails as a mass of rock and sediment falling together as somewhat large coherent blocks of material. However, there are other types of mass wasting that happen when loose materials mix with water and air and flow down the slope like a fluid. This type of mass wasting is referred to as a flow.
Why are slumps referred to as rotational slides?
A slump is sometimes referred to as a rotational slide because a portion or block of the slope ‘slides’ down as it ‘rotates’ around an axis parallel to the slope. A slump can occur as a single unit or as a number of slumps grouped together, and they form when the base of the mountain slope or hillside is eroded or cut away.
Which is more likely to have mass movements?
Steep and unstable slopes are more likely to have a mass movement than gentle and stable slopes. A fall or topple happens when rocks and other sediments fall through the air and land at the bottom of a slope. Flows are a mixture of water, rock and sediment. They move very quickly.
What are the four classes of mass movements?
Mass movements can be divided into four main classes. These are falls, slides, creeps and flows. The classes are based on how quickly the rock and sediment moves and how much water there is. Steep and unstable slopes are more likely to have a mass movement than gentle and stable slopes.
