cryoconite hole

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• Cryoconite — A layer of cryoconite on the surface of a glacier. Cryoconite is powdery windblown dust which is deposited and builds up on snow, glaciers, or icecaps. It contains small amounts of soot which absorbs solar radiation melting the snow or ice… …   Wikipedia

• cryoconite — /ˈkraɪoʊkənaɪt/ (say kruyohkuhnuyt) noun 1. a dark powdery deposit on ice or snow, as on a glacier, containing dust or soot that has been carried by the wind, as from distant farmland or desert, volcanic eruptions, industrial emissions, etc. 2.… …