Scientists have long established that the mountains appear in the place where there is intense movement of earth plates.Many millions of years ago, the tectonic plates creeps on each other and compressed under tremendous pressure into giant folds, broke into the cracks and fissures.Thus arose folded mountains, which are an example of the Appalachian Mountains, has lost its original height, and a large part of the Alps.
vaulted or domed mountains arose a somewhat different way.These layers of rock arched upward molten lava, which is under a lot of pressure tends to the earth's surface.On these mountains can be seen today infiltrated the masses of igneous rocks.An example of this - the Black Hills, located in the US state of Dakota.
one piece, or as they are called, blocky, the mo
untains were the result of failures or faults of the crust.Giant boulders began to move along the fault, falling into or climbing up.It thus appeared Teton Range and the Sierra Nevada mountain range in America.
Some single mountain with a beautiful conical and symmetrical shape, formed at the site of the volcano.During its eruption on the surface of the earth he settled magma, ash, rocks and mud.Over time, the lava solidified, forming a small hill that each volcanic eruption is getting higher.Similarly formed beautiful Mount Fuji in Japan or Mount Vesuvius in Italy.They are easily recognizable by the truncated top, where is located the mouth of the volcano.
Despite the apparent solidity and firmness of the mountains, they tend to change and even destruction.Their soil is often washed away by flowing water and rain, and the slopes are destroyed frozen water.Over time, even the largest peaks can turn into small hills, and even plain, though it will take many millions of years.