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Canadian Shield

(Encyclopedia)Canadian Shield or Laurentian Plateau lôrĕnˈchən [key], U-shaped region of ancient rock, the nucleus of North America, stretching N from the Great Lakes to the Arctic Ocean. Covering more than hal...

Canadian

(Encyclopedia)Canadian kənāˈdēən [key], river, 906 mi (1,458 km) long, rising in NE New Mexico. and flowing E across N Texas and central Oklahoma into the Arkansas River in E Oklahoma. In the mid-1800s, the Ca...

Angara Shield

(Encyclopedia)Angara Shield, Asia: see Siberian Platform. ...

shield, armor

(Encyclopedia)shield, piece of defensive armor, worn on the arm or shoulder to ward off weapons during combat, used prior to the dominance of gunpowder. Originally for individual defense during hand-to-hand combat,...

Baltic Shield

(Encyclopedia)Baltic Shield, the continental core of Europe, composed of Precambrian crystalline rock, the oldest of Europe. The tectonically stable region was not affected by the Caledonian, Hercynian, and Alpine ...

shield, in geology

(Encyclopedia)shield, in geology: see continent. ...

North Canadian

(Encyclopedia)North Canadian, river, 760 mi (1,223 km) long, rising in NE N.Mex., and flowing SE through Okla. to join the Canadian River in the Eufaula reservoir, E Okla. Federal dams and reservoirs on the river a...

Canadian Alliance

(Encyclopedia)Canadian Alliance, former Canadian political party that had its origins in the Reform party of Canada, which was founded in 1987 in Winnipeg, Man., as a W Canada–based conservative alternative to th...