A randkluft (from the German for marginal cleft/crevasse) or rimaye (from the same French IPA: [ʁimaj]) is the headwall gap between a glacier or snowfield and the adjacent rock face at the back of the cirque[1] or, more loosely, between the rock face and the side of the glacier.
![](http://upload.wikimedia.org/wikipedia/commons/thumb/d/d2/Glacial_Cirque_Formation_EN.svg/338px-Glacial_Cirque_Formation_EN.svg.png)
In French, the word rimaye covers both notions of randkluft and bergschrund.
Formation
editIt is formed by the melting of ice against warmer rock and may be very deep. During summer therefore, a randkluft will become wider and thus more difficult for climbers to negotiate. Randklufts are often found in relatively low-lying glaciers such as the Blaueis in the Berchtesgaden Alps or the Höllentalferner in the Wetterstein.
A randkluft is similar to, but not identical with, a bergschrund, which is the place on a high-altitude glacier where the moving ice stream breaks away from the static ice frozen to the rock creating a large crevasse. Unlike a randkluft, a bergschrund has two ice walls.
Gallery
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Wide randkluft on the east face of the Watzmann
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Alpinists over the randkluft of the Höllentalferner glacier
See also
editReferences
edit- ^ Whittow, John (1984). Dictionary of Physical Geography. London: Penguin, 1984, p. 438. ISBN 0-14-051094-X.
External links
edit- Cryosphere Glossary, National Snow and Ice Data Center
- Photo of the randkluft on the Höllentalferner