How are fold mountain formed? Explain.

Examples

• The Jura mountains - A series of sub-parallel mountainous ridges that formed by folding over a Triassic evaporite decollement due to thrust movements in the foreland of the Alps
• The 'Simply Folded Belt' of the Zagros Mountains - A series of elongated anticlinal domes, mostly formed as detachment folds over underlying thrusts in the foreland of the Zagros collisional belt, generally above a basal decollement that formed in evaporite of the late Neoproterozoic to Early Cambrian Hormuz Formation
• The Akwapim-Togo ranges in Ghana.
• The Ridge-and-Valley Appalachians in the eastern part of United States.