longitudinal crevasse
geology
Quick Summary
A longitudinal crevasse is a fissure or crack in a glacier that runs roughly parallel to the direction of ice movement. These crevasses form in areas where the glacier experiences compressive stress and spreads laterally. They can be up to 20 meters wide, 45 meters deep, and several hundred meters long. Crevasses are a result of stress produced by the glacier's movement and can be bridged by snow, making them hidden hazards. They may also close up as the glacier moves onto a gentler slope.12
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