Cordillera

A cordillera is an extensive chain of mountains or mountain ranges. The term is borrowed from a Spanish word with the same meaning that itself comes from cordilla, a diminutive of "cuerda" ("rope").

The term is most commonly used in physical geography[1] and is particularly applied to the various ranges of the Andes of South America and less frequently to other mountain ranges in the "ridge" that rims the Pacific Ocean. In Colombia and Venezuela, cordilleras are named according to their position: Cordillera Occidental, Central, and Oriental. Various local names are used for the cordilleras in Ecuador, Peru, Bolivia, Chile, and Argentina.

Such mountain ranges have a complex structure, which is usually the result of folding and faulting accompanied by volcanic activity. In South America, the ranges include numerous volcanic peaks. The Andes cordillera has Ojos del Salado, the highest active volcano in the world and second-highest point in the Western Hemisphere. (Though not itself a volcano, Argentina's Aconcagua, at 6,960 m, at (22,834 ft), is the highest point in the Western Hemisphere.)[2] Some of the volcanoes have been active in historical times.

Aside from the volcanic peaks, the crests include many narrow ridges, some of which reach into the zone of permanent snow. Between the ranges are numerous inhabited valleys, basins, and low plateaux, with a wide range of elevations.

Notable cordillerasEdit

ReferenceesEdit

  1. ^ The Encyclopedia Americana: a library of universal knowledge, p. 687 (Encyclopedia Americana Corp., 1918): "It is used particularly in physical geography, although in geology also it is sometimes applied...."
  2. ^ "Informe científico que estudia el Aconcagua, el Coloso de América mide 6960,8 metros" [Scientific Report on Aconcagua, the Colossus of America measures 6960,8m] (in Spanish). Universidad Nacional de Cuyo. 2012. Archived from the original on September 8, 2012. Retrieved September 3, 2012.