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Cirque |
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cirque
1. Geography a semicircular or crescent-shaped basin with steep sides and a gently sloping floor formed in mountainous regions by the erosive action of a glacier 2. Archaeol an obsolete term for circle cirque [sərk] (geology) A steep elliptic to elongated enclave high on mountains in calcareous districts, usually forming the blunt end of a valley. Also known as corrie; cwm. Cirque a natural bowl-shaped depression near the summit of a mountain, with steep rocky walls and a sloping concave bottom. It is formed by the action of small glaciers, snow fields, and subsequent frost weathering. Some cirques have permanent glaciers or firn accumulation; others have seasonal accumulations of snow, and very often the cirque bottom is filled with water(high-mountain lakes). Want to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit the webmaster's page for free fun content. |
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