how did mountains create?

Answer 1

What type of mountains? The largest mountain chain in the world is the mid-oceanic ridge and it is created by upwelling mantle. Other types of mountains are created by the subduction of basalt under continental crust (e.g. the Andes Mountains). Still other types of mountains are created by continent-continent collision (e.g. the Alps). Still other types of mountains are created by hot spot vulcanism (e.g. The Hawaii Islands). Other types of mountains are created by trans-pression (e.g. The Coast Ranges of California). Be more specific as to which type of mountains you refer.

Answer 2

A mountain is usually produced by the movement of lithospheric plates, either orogenic movement or epeirogenic movement. The compressional forces, isostatic uplift and intrusion of igneous matter forces surface rock upwards, creating a landform higher than the surrounding features. The height of the feature makes it either a hill or, if higher and steeper, a mountain. The absolute heights of features termed mountains and hills vary greatly according to an area's topography. The major mountains tend to occur in long linear arcs, indicating tectonic plate boundaries and activity. Mountain creation tends to occur in discrete periods, each referred to as an orogeny. The orogeny may last millions of years, and the uplifted region is being eroded away, producing valley-and-peak topography, even while the uplift is taking place. Two types of mountain are formed depending on how the rock reacts to the tectonic forces – block mountains or fold mountains.

The compressional forces in continental collisions may cause the compressed region to thicken, so the upper surface is forced upwards. In order to balance the weight, much of the compressed rock is forced downwards, producing deep "mountain roots". Mountains therefore form downwards as well as upwards (see isostasy). However, in some continental collisions part of one continent may simply override part of the others, crumpling in the process.

Some isolated mountains were produced by volcanoes, including many apparently small islands that reach a great height above the ocean floor.

Block mountains are created when large areas are widely broken up by faults creating large vertical displacements. This occurence is fairly common. The uplifted blocks are block mountains or horsts. The intervening dropped blocks are termed graben: these can be small or form extensive rift valley systems. This form of landscape can be seen in East Africa, the Vosges, the Basin and Range province of Western North America and the Rhine valley.

Where rock does not fault it folds, either symmetrically or asymmetrically. The upfolds are anticlines and the downfolds are synclines; in asymmetric folding there may also be recumbent and overturned folds. The Jura mountains are an example of folding. Over time, erosion can bring about an inversion of relief: the soft upthrust rock is worn away so the anticlines are actually lower than the tougher, more compressed rock of the synclines.

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Answer 3

Mountains were created by the earth being pushed up during the ice age. As the pressure from the ice below it acted as a plow which formed the mountains and the valleys. When the ice melted during the last global warming the melted snow sent large volumes of water cutting gorge's and canyons that we see today.

Answer 4

you mean how was moutains created?
due to the movement of the plates of the earth,sometimes two plates may colide with each other causing the land to come up.