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amphibole

(Encyclopedia) amphiboleamphiboleămˈfəbōlˌ [key], any of a group of widely distributed rock-forming minerals, magnesium-iron silicates, often with traces of calcium, aluminum, sodium, titanium, and…

Great Sandy Desert

(Encyclopedia) Great Sandy Desert, Australia's second-largest desert, c.110,000 sq mi (284,900 sq km), Western Australia and Northern Territory. Lying between the Tanami Desert (NE) and the Gibson…

Hendrix, Jimi

(Encyclopedia) Hendrix, Jimi (James Marshall Hendrix), 1942–70, African-American rock guitarist, b. Seattle, Wash. Hendrix, in his short musical career, was known for an innovative and extremely…

hogback

(Encyclopedia) hogback, sharp-crested ridge with steep slopes on both sides, formed by the erosion of steeply tilted rock layers. Hogbacks are commonly formed along the eroded flanks of large,…

Ashokan Reservoir

(Encyclopedia) Ashokan ReservoirAshokan Reservoirəshōˈkən [key], 13 sq mi (34 sq km), SE N.Y., completed 1912. It is supplied by the Esopus and Schoharie watersheds and provides part of New York City…

Liston, Sonny

(Encyclopedia) Liston, Sonny (Charles Liston), 1932–71, American boxer, b. Little Rock, Ark. While serving a sentence for robbery at the Missouri State Penitentiary, Liston became interested in…

chromite

(Encyclopedia) chromitechromitekrōˈmīt [key], dark brown to black mineral. It is an iron-chromium oxide, FeCr2O4, with traces of magnesium and aluminum. Its crystals are octahedral, but rare; it…

kame

(Encyclopedia) kamekamekām [key], low, steep, rounded hill or ridge of layered sand and gravel drift, developed from glacial deposits. Kames were probably formed by streams of melting glacial ice…

alpine plants

(Encyclopedia) alpine plants, high-altitude representatives of various flowering plants (chiefly perennials) that because of their dwarf habit, profuse blooming, and the preference of many for shady…

Breuil, Henri

(Encyclopedia) Breuil, HenriBreuil, HenriäNrēˈ bröˈyə [key], known as Abbé BreuilAbbé Breuiläbāˈ [key], 1877–1961, French archaeologist, paleontologist, and cleric. He taught at the Institut de…