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Leibovitz, Annie

(Encyclopedia)Leibovitz, Annie lēbˈəvĭts [key], 1949–, American photographer, b. Waterbury, Conn., as Anna-Lou Leibovitz. A celebrated portrait photographer, she began contributing photographs to Rolling Ston...

gneiss

(Encyclopedia)gneiss nīs [key], coarse-grained, imperfectly foliated, or layered, metamorphic rock. Gneiss is characterized by alternating light and dark bands differing in mineral composition and having coarser g...

Bancroft

(Encyclopedia)Bancroft, village, SE Ont., Canada, on the York River. Its industries include milling, quarrying, dairying, lumbering, and tourism. The Bancroft Gembore...

quartzite

(Encyclopedia)quartzite, usually metamorphic rock composed of firmly cemented quartz grains. Most often it is white, light gray, yellowish, or light brown, but is sometimes colored blue, green, purple, or black by ...

Moline

(Encyclopedia)Moline mōlēnˈ [key], city (1990 pop. 43,202), Rock Island co., NW Ill., on the Mississippi River, in a coal area; inc. 1848. It is a transportation and industrial center, and has been a major produ...

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 million years ago. It ...

sediment

(Encyclopedia)sediment, mineral or organic particles that are deposited by the action of wind, water, or glacial ice. These sediments can eventually form sedimentary rocks (see rock). Sediments form sedimentary ...

cotinga

(Encyclopedia)cotinga kōtĭngˈgə [key], any of the New World tropical birds of the family Cotingidae. Cotingas range from N Argentina to the southern border of the United States; most are forest species and inha...

Cockpit Country

(Encyclopedia)Cockpit Country, hilly region on the plateau of Jamaica, c.200 sq mi (520 sq km), W central Jamaica. Composed of limestone rock, the region has many sink holes, caverns, and subterranean streams. ...