How many types of mountain-building movements are there? Explain.
Answers
Answer:
There are four main types of mountains: volcanic, fold, residual, and block. A more detailed classification useful on a local scale predates plate tectonics and adds to these categories.
Explanation:
Volcanic mountains. Movements of tectonic plates create volcanoes along the plate boundaries, which erupt and form mountains. A volcanic arc system is a series of volcanoes that form near a subduction zone where the crust of a sinking oceanic plate melts and drags water down with the subducting crust
Fold mountains
When plates collide or undergo subduction (that is – ride one over another), the plates tend to buckle and fold, forming mountains. Most of the major continental mountain ranges are associated with thrusting and folding or orogenesis.
Block mountains
When a fault block is raised or tilted, block mountains can result. Higher blocks are called horsts and troughs are called grabens. A spreading apart of the surface causes tensional forces. When the tensional forces are strong enough to cause a plate to split apart, it does so such that a center block drops down relative to its flanking blocks.
Residual mountains
Residual mountains are formed as a result of erosion of an existing elevated area. They are also called mountains of denudation.