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sandstone

(Encyclopedia) sandstone, sedimentary rock formed by the cementing together of grains of sand. The usual cementing material in sandstone is calcium carbonate, iron oxides, or silica, and the hardness…

harbor seal

(Encyclopedia) harbor seal, most commonly seen seal of the Northern Hemisphere, Phoca vitulina. Harbor seals are found along coasts and in sheltered bays and harbors of North America, Europe, and NE…

drift

(Encyclopedia) drift, deposit of mixed clay, gravel, sand, and boulders transported and laid down by glaciers. Stratified, or glaciofluvial, drift is carried by waters flowing from the melting ice of…

wrasse

(Encyclopedia) wrassewrasserăs [key], common name for a member of the large family Labridae, brilliantly colored fishes found among rocks and kelp in tropical seas. Wrasses, related to the…

Narmada

(Encyclopedia) NarmadaNarmadanərmŭˈdə [key], river, c.775 mi (1,250 km) long, rising in Madhya Pradesh state, central India, and flowing W between the Satpura and Vindhya ranges through Gujarat state…

moon

(Encyclopedia) CE5 The moon: Near side CE5 The moon: Far side moon, natural satellite of a planet (see satellite, natural) or dwarf planet, in particular, the single natural satellite of the…

Heizer, Michael

(Encyclopedia) Heizer, Michael, 1944–, American sculptor and painter, b. Berkeley, Calif., studied San Francisco Art Institute (1963–64). Heizer was one of the artists who developed land art in the…

capuchin

(Encyclopedia) capuchincapuchinkăpˈy&oomacr;chĭn [key], name for New World monkeys of the genus Cebus, widely distributed in tropical forests of Central and South America. Medium-sized monkeys,…

Canadian Shield

(Encyclopedia) Canadian Shield or Laurentian PlateauLaurentian Plateaulôrĕnˈchən [key], U-shaped region of ancient rock, the nucleus of North America, stretching N from the Great Lakes to the Arctic…