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Transverse crevasses, Chugach State Park, Alaska. A crevasse is a deep crack that forms in a glacier or ice sheet. Crevasses form as a result of the movement and resulting stress associated with the shear stress generated when two semi-rigid pieces above a plastic substrate have different rates of movement. The resulting intensity of the shear ...
A common form of crevice failure occurs due to stress corrosion cracking, where a crack or cracks develop from the base of the crevice where the stress concentration is greatest. This was the root cause of the fall of the Silver Bridge over the Ohio River , in 1967 in West Virginia , where a single critical crack only about 3 mm long suddenly ...
A crevasse may be as deep as 45 m (148 ft) and as wide as 20 m (66 ft). [11] A crevasse may be covered, but not necessarily filled, by a snow bridge made of the previous years' accumulation and snow drifts. The result is that crevasses are rendered invisible, and extremely dangerous to anyone attempting to traverse a glacier. [12]
Scientists are torn about why a massive crack in the earth suddenly appeared outside Nairobi, Kenya.
Crevasse – A deep crack, or fracture, in an ice sheet or glacier; Corrie – An amphitheatre-like valley formed by glacial erosion or cwm; Cove (mountain) – Small valley in the Appalachian Mountains between two ridge lines; Dirt cone – Depositional glacial feature of ice or snow with an insulating layer of dirt
A crevice is a fracture or fissure in rock. Crevice may also refer to: Crevice corrosion, occurs in spaces to which the access of corrosion-resistant fluid is limited; Crevice kelpfish (Gibbonsia montereyensis), a species of subtropical clinid; Crevice Spiny Lizard (Sceloporus poinsettii), a small, typically shy, phrynosomatid lizard
A bergschrund (from the German for mountain cleft) is a crevasse that forms where moving glacier ice separates from the stagnant ice or firn above. [1] It is often a serious obstacle for mountaineers, who sometimes abbreviate "bergschrund" to "schrund". Bergschrunds extend to the bedrock and can have a depth of well over 100 metres (330 ft).
A crevasse that forms on the upper portion of a glacier where the moving section pulls away from the headwall. beta Information on how to complete (or protect) a particular climbing route. See on-sight and flash. [1] [2] [3] beta break In sport climbing, a move on a climbing route other than the move originally intended by the route setter. In ...