crevasse


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crevasse

(krəvăs`), large crack in the upper surface of a glacierglacier,
moving mass of ice that survives year to year, formed by the compacting of snow into névé and then into granular ice and set in motion outward and downward by the force of gravity and the stress of its accumulated mass.
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, formed by tension acting upon the brittle ice. Transverse crevasses occur where the grade of the glacier bed becomes suddenly steeper; longitudinal crevasses, where the glacier spreads over a wider valley or plain. Marginal crevasses are due to the strain built up when the central part moves faster than the sides.

crevasse

[krə′vas]
(geology)
An open, nearly vertical fissure in a glacier or other mass of land ice or the earth, especially after earthquakes.

crevasse

1. a deep crack or fissure, esp in the ice of a glacier
2. US a break in a river embankment
References in periodicals archive ?
She faced the dangers of walking across ladders over deep crevasses and ran out of oxygen on her way down from the summit.
Along the smoothed walls, a black streak of entrance to Glacier volcanic ash reveals a past eruption, while LED lights in the floor and ceiling illuminate compacted blue ice squeezed free of any air bubbles, which, along with the cave's two crevasses, forms the star attraction.
The sixth climber, who was missing, was apparently spotted at the foot of a crevasse and recovery efforts were underway.
Description: The recall involves Mammut's RescYou crevasse rescue devices with batch numbers 12-12 and 03-13.
Rescue climbers had previously attempted to find Brown's body but could not traverse far enough down the crevasse.
National Park Service officials announced on Sunday the search for the four bodies was suspended after a mountaineering ranger lowered himself 30m into the same crevasse that the party's lone survivor, 69-year-old Hitoshi Ogi, fell into after the avalanche on Wednesday.
We had been told in the previous evening's instruction that crevasses are rarely deeper than 40m; while dangling, I worked out that this is more than 12 storeys; which seemed far enough.
The ice baths I had were originally to prepare for the North Pole but when I fell into a crevasse on Denali, it would have been significantly more serious if I hadn't have had the mindset and the mental strength I'd got from those ice baths.
Glacier mountaineering; an illustrated guide to glacier travel and crevasse rescue.
If conditions stop rescuers flying to help, the pair will have to try to trek through crevasse fields to safety.
We've had the team falling into ice crevasses, one of the team a second from mayhem kiting right into a monster crevasse and now a real battle against time to travel the 800 kilometres within our remaining food supplies.
Upon his return, there's no trace of his wife's body, only a bloody track leading to a massive crevasse .