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cryoconite
cryoconite (kraɪˈɑkəˌnaɪt) pl n (Geological Science) a dark powder found at the bottom of glacier holes, formerly thought to be cosmic in origin but now widely regarded to be terrestrialcryoconite
cryoconite[krī′äk·ə‚nīt] (geology) A dark, powdery dust transported by wind and deposited on the surface of snow or ice; found, however, mainly in cryoconite holes. (mineralogy) A mixture of garnet, sillimanite, zircon, pyroxene, quartz, and various other minerals. |