Columbia Encyclopedia

(Encyclopedia) subduction zone, large-scaled narrow region in the earth's crust where, according to plate tectonics, masses of the spreading oceanic lithosphere bend downward into the earth along the leading edges o...

(Encyclopedia) Wegener, Alfred Lothar älˈfrĕt lōtärˈ vĕgˈənər [key], 1880–1930, German geologist, meteorologist, and Arctic explorer. Early in his life, he was on the staff of the aeronautical observator...

(Encyclopedia) Singh, Vishwanath Pratap sĭng [key], 1931–2008, Indian politician and prime minister (1989–90). As finance minister under Rajiv Gandhi (1984–87) he pursued policies of economic liberalization....

(Encyclopedia) veto [Lat.,=I forbid], power of one functionary (e.g., the president) of a government, or of one member of a group or coalition, to block the operation of laws or agreements passed or entered into by ...

(Encyclopedia) ocean, interconnected mass of saltwater covering 70.78% of the surface of the earth, often called the world ocean. It is subdivided into four (or five) major units that are separated from each other i...

(Encyclopedia) Northeast Canyons and Seamounts Marine National Monument, 4,913 sq mi (12,725 sq km), NW Atlantic Ocean, 130 mi (210 km) off the coast of Cape Cod; est. 2016. The monument is divided into two areas; o...

(Encyclopedia) Inside Passage, natural, protected waterway, c.950 mi (1,530 km) long, threading through the Alexander Archipelago off the coast of British Columbia and SE Alaska. From Seattle, Wash., to Skagway, Ala...

(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 subordinate amounts o...

(Encyclopedia) Gujral, Inder Kumar, 1919–2012, Indian political leader, prime minister of India (1997–98), b. Jhelum, British India (now in Pakistan). Active in the Indian independence movement, he was a member ...

(Encyclopedia) Patel, Vallabhbhai vŭlˌləb-bäˈē pətĕlˈ [key], 1875–1950, Indian political leader. He was admitted (1913) to the bar in England and set up a lucrative practice in India. In 1915 he met Mohan...