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List of longest mountain chains in the world : ウィキペディア英語版 | List of longest mountain chains in the world
The world's longest above-ground mountain range is the Andes,〔(''Andes Mountains'' by Alan W./Knapp Gregory. 1999 ) Retrieve 2002〕〔Windows to Universe (''The Andes Mountains'' by: Julia Genyuk. ) Retrieve 17 November 2008〕 about 4,350 miles (7,000 km) long. The range stretches from north to south through seven countries in South America, along the west coast of the continent: Venezuela, Colombia, Ecuador, Peru, Bolivia, Chile, and Argentina. Aconcagua is the highest peak, at about 6,962 metres (22,841 feet). This list does not include submarine mountain ranges. If submarine mountains are included, the longest is the global mid-ocean ridge system which extends for about 40,000 miles (65,000&n ==Formation== Large mountain chains are typically formed by the process of plate tectonics. Tectonic plates slide very slowly over the Earth's mantle, a lower place of rock that is heated from the Earth's interior. Several huge sections of the earth’s crust are impelled by heat currents in the mantle, producing tremendous forces that can buckle the material at the edges of the plates to form mountains. Usually one plate is forced underneath the other, and the lower plate is slowly absorbed by the mantle. Where the two plates pass one another, heated rock from the mantle can burst through the crust to form volcanoes. The movement of the plates against one another can also cause earthquakes.
抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「List of longest mountain chains in the world」の詳細全文を読む
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