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Fold mountains are formed when two plates under the ground move together which forces sedimentary rock upwards in to a series of folds. ' Hence fold mountains '

There are two types of fold mountain: young fold mountains ( 10-25 millions years of age e.g Rockies and Himalayas ) Old fold mountains (over 200 million years of age, e.g. Urals and Appalachians of the USA).

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15y ago

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