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Faubus, Orval

(Encyclopedia) Faubus, OrvalFaubus, Orvalôrˈvəl fôˈbəs [key], 1910–94, governor of Arkansas (1955–67), b. Combs, Ark. A schoolteacher, he served in World War II and after the war became Arkansas's…

Great Artesian Basin

(Encyclopedia) Great Artesian Basin, c.670,000 sq mi (1,735,300 sq km), between the Eastern Highlands and the Western Plateau, E central Australia, extending S from the Gulf of Carpentaria,…

Janesville

(Encyclopedia) Janesville, city (1990 pop. 52,133), seat of Rock co., S central Wis., on the Rock River; inc. 1853. It is an industrial and commercial center in a grain, dairy farm, and tobacco area…

Uluru–Kata Tjuta National Park

(Encyclopedia) Uluru–Kata Tjuta National Park, 327,647 acres (132,566 hectares), SW Northern Territory, central Australia. This Anangu-owned park, leased to the Australian government by the…

silt

(Encyclopedia) silt, predominantly quartz mineral particles that are between sand size and clay size, i.e., between 1&fslsh;16 and 1&fslsh;256 mm (1&fslsh;406 –1&fslsh;6502 in.) in…

rhyolite

(Encyclopedia) rhyolite, fine-grained light-colored acidic volcanic rock. Rhyolite is chemically the equivalent of granite, and is thus composed primarily of quartz and orthoclase feldspar with…

syenite

(Encyclopedia) syenitesyenitesīˈənīt [key], coarse-grained igneous rock, similar in appearance and composition to granite. Unlike granite, it contains little or no quartz. The chief minerals in…

Who, The

(Encyclopedia) Who, The, English rock music group formed in 1964. The members were Peter Dennis Blanford Townshend, 1945–, Chiswick, London, U.K…

Cambrian period

(Encyclopedia) Cambrian period [Lat. Cambria=Wales], first period of the Paleozoic geologic era (see Geologic Timescale, tablegeologic timescale, table) extending from approximately 570 to 505…

joint, in geology

(Encyclopedia) joint, in geology, fracture in rocks along which no appreciable movement has occurred (see fault). Nearly vertical, or sheet, joints that result from shrinkage during cooling are…