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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. An example of a slow-moving slump is the Swift Creek Landslide, a deep-seated rotational slump located on Sumas Mountain, Washington.
Slump structures are mainly found in sandy shales and mudstones, but may also be in limestones, sandstones, and evaporites. They are a result of the displacement and ...
Drone footage [6] [10] revealed in 2023 more details of the crater, and Nikita Tananayev, lead researcher at the Melnikov Permafrost Institute in Yakutsk interviewed by Reuters for the occasion, [11] warned that the expansion of the Batagaika crater is a sign of danger; with increasing temperatures and anthropogenic pressure more and more ...
The Hilina Pali is the headscarp of the Hilina Slump, a type of landslide where a large and relatively intact block slips along a concave surface, dropping vertically at the head, with the toe often extending upward as well as outward [22] The Hilina Slump extends seaward from both ends of the Hilina Pali out to a depth of 5,000 meters (16,404 ...
Talus cones produced by mass moving, north shore of Isfjord, Svalbard, Norway Mass wasting at Palo Duro Canyon, West Texas (2002) A rockfall in Grand Canyon National Park. Mass wasting, also known as mass movement, [1] is a general term for the movement of rock or soil down slopes under the force of gravity.
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 that involve partly to completely liquefied material (Keefer, 1999).
Five more homes on Peartree Lane in Rolling Hills Estates have been evacuated after a sewer line broke in the landslide, which had already collapsed multiple homes.
A 2009 study classified slumps as active, stable, and ancient. An active slump is one that has a clearly-defined headwall and bare areas; and a stable slump is one that has clearly-defined boundaries and is completely covered in vegetation. The headwall relief of an ancient slump is a subdued scar on the terrain that is covered in tundra ...