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The term is also used for collapse of rock from roof or walls of mine or quarry workings. "A rockfall is a fragment of rock (a block) detached by sliding, toppling, or falling, that falls along a vertical or sub-vertical cliff, proceeds down slope by bouncing and flying along ballistic trajectories or by rolling on talus or debris slopes." [2]
The most abundant types of earthquake-induced landslides are rock falls and slides of rock fragments that form on steep slopes. However, almost every other type of landslide is possible, including highly disaggregated and fast-moving falls; more coherent and slower-moving slumps, block slides, and earth slides; and lateral spreads and flows ...
Rockslide at Oddicombe Beach in Devon, UK Rockslides in Nigeria Landslips. A rockslide is a type of landslide caused by rock failure in which part of the bedding plane of failure passes through compacted rock and material collapses en masse and not in individual blocks.
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A rock avalanche, sometimes referred to as sturzstrom, is a large and fast-moving landslide of the flow type. It is rarer than other types of landslides but it is often very destructive. It is rarer than other types of landslides but it is often very destructive.
The term incorporates earth slides, rock falls, flows, and mudslides, amongst other categories of hillslope mass movements. [12] They do not have to be as fluid as a mudflow. Mudflows can be caused by unusually heavy rains or a sudden thaw. They consist mainly of mud and water plus fragments of rock and other debris, so they often behave like ...
A rockfall protection embankment is an earthwork built in elevation with respect to the ground to intercept falling rock fragments before elements at risk such as roads and buildings are reached. This term is widely used in the rockfall community but the terms bunds and walls are sometimes used as alternatives.
Angel Falls in Venezuela is the tallest waterfall in the world, the Khone Phapheng Falls in Laos are the widest, [17] and the Inga Falls on the Congo River are the biggest by flow rate, [48] while the Dry Falls in Washington are the largest confirmed waterfalls ever. [49] The highest known subterranean waterfall is in Vrtoglavica Cave in ...