How is a slump different from a rockfall?
As nouns the difference between rockfall and slumping
is that rockfall is a quantity of rocks that has fallen from a cliff etc while slumping is the result of a slumping movement, like that of a mountain.
What is the difference between a slump and a translational slide?
Slumps or rotational slides have curved slip surfaces, and tend to produce small topographic benches, which may rotate and tilt in an up‐slope direction. Translational slides generally have planar slip surfaces, and materials moves along inclined slip planes within and parallel to a slope.
What is a rockslide in geology?
A rock slide is a type of landslide occurring when a mass of rock moves quickly downslope. Rock slides happen in mountainous regions or where artificial excavation is taking place (e.g., mines and quarries).
Slump, in geology, downward intermittent movement of rock debris, usually the consequence of removal of buttressing earth at the foot of a slope of unconsolidated material.
A slump is the downward slipping of a mass of rock or unconsolidated material, moving as a unit, usually with backward rotation on a more or less horizontal axis parallel to a slope or cliff from which it descends. Slumps typically have a fault-like escarpment (or scarp) and fissures at their upper end.
The speed of slump varies widely, ranging from meters per second, to meters per year. Sudden slumps usually occur after earthquakes or heavy continuing rains, and can stabilize within a few hours. Most slumps develop over comparatively longer periods, taking months or years to reach stability.
A translational or planar landslide is a downslope movement of material that occurs along a distinctive planar surface of weakness such as a fault, joint or bedding plane. These landslides occur at all scales and are not self-stabilising. They can be very rapid where discontinuities are steep.
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.
Slump material moves as a whole unit, leaving behind a crescent shaped scar. Figure 2. Trees with curved trunks are often signs that the hillside is slowly creeping downhill. Creep is the imperceptibly slow, steady, downward movement of slope-forming soil or rock.
: the slow creeping of saturated fragmental material (such as soil) down a slope that usually occurs in regions of perennial frost.
Solifluction is a process where soil is saturated and starts flowing over a slope. The first application that included solifluction in LAPSUS, was Temme and Veldkamp's study in South Africa.
Slumping: involves a whole segment of the cliff moving down-slope along a saturated shear-plane.
A landslide is the movement of rock, earth, or debris down a sloped section of land. Landslides are caused by rain, earthquakes, volcanoes, or other factors that make the slope unstable.
Submarine slump, in a submarine canyon or on a continental slope, relatively rapid and sporadic downslope composed of sediment and organic debris that has built up slowly into an unstable or marginally stable mass.
A landslide is defined as the movement of a mass of rock, debris, or earth down a slope. Landslides are a type of "mass wasting," which denotes any down-slope movement of soil and rock under the direct influence of gravity. Almost every landslide has multiple causes.
Lesson Summary. Gravity moves earth materials from higher elevations to lower elevations. Landslides, avalanches, and mudflows are examples of dangerous erosion by gravity. Slump and creep move material slowly downslope.
The slowest type of mass movement is creep. This occurs on slopes where there is significant plant or tree growth.
If you can see a landslide moving towards you, chances are you probably can't outrun it. Stay inside, and move upstairs or onto higher ground. Then, hunker down underneath some sturdy furniture and wait it out. Getting to a higher spot can help you stay out of the path of the landslide.
Do not panic and loose energy by crying. Do not touch or walk over loose material and electrical wiring or pole. Do not built houses near steep slopes and near drainage path. Do not drink contaminated water directly from rivers, springs, wells but rain water if collected directly without is fine.
Run sideways away from the mudslide if you're outside.
Run away from the mudslide at a right angle, as quickly as is safely possible. Don't try to run towards the mudslide or downhill from it--you likely won't be able to outrun it. Some mudslides can be over a mile wide.
From my observations a slide can occur in 10s of seconds, quick slump flowing fast enough that one cannot escape if you were to be in the path, the one I witnessed took a truck off the road and about 150 meters down a shallow bank the people in the truck escaped but we lost the truck.
The ten most important landslide events of 2018
On March 1, 1910, an avalanche killed 96 people in Wellington near Stevens Pass, making it the deadliest avalanche in U.S. history.
: a mass of predominantly unconsolidated and incoherent soil and rock fragments that has slid or rolled rapidly down a steep slope when comparatively dry to form an irregular hummocky deposit — compare debris-avalanche.