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In Canada, the North American Cordillera is usually divided into three physiographic regions: the western system, the interior system, and the eastern system. [16] The western system includes the Coast Mountains, the interior system includes the Columbia Mountains, and the eastern system includes the Canadian Rockies. [3]
The Western Gneiss Terrane is a series of polydeformed high-grade early Archaean metamorphic belts, composed predominantly of feldspathic leucocratic granulite gneisses, which represent some of the oldest crustal fragments on Earth. [4] The Western Gneiss Terrane is distinct from the remainder of the Yilgarn Craton in that the latter has a ...
Fruit Belt, an area where fruit growing is prominent, specially oranges at the state of Florida and grapes at California; Indiana Gas Belt, a region of Indiana that was the site of a natural gas boom in the late 19th century and early 20th century; Jell-O Belt, also known as the Mormon corridor or Mormon belt, western states with a large Mormon ...
The Sevier Fold and Thrust Belt extends from southern California near the Mexican border to Canada. [1] Basin and Range faults cut the older Sevier thrust faults. [4] The Sevier orogeny was preceded by several other mountain-building events including the Nevadan orogeny, the Sonoman orogeny, and the Antler orogeny, and partially overlapped in time and space with the Laramide orogeny.
The Belt Supergroup was deposited unconformably on Archean and Paleoproterozoic rocks. It reaches thicknesses of more than 15 kilometres (10 mi) and is present in western Montana and northern Idaho, with minor occurrences in northeastern Washington and western Wyoming. Because of this widespread extent, the rock types and formation names of the ...
The American Cordillera (/ ˌ k ɔːr d əl ˈ j ɛ r ə / KOR-dəl-YERR-ə) is a chain of mountain ranges (cordilleras), consisting of an almost continuous sequence of mountain ranges that form the western "backbone" of the Americas. [2] Aconcagua is the highest peak of the chain.
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