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Posted by on Jul 27, 2015 in Tell Me Why |

How Were the Mountains Formed?

How Were the Mountains Formed?

Mountains were formed by very slow movements in the earth’s crust. In some places, the earth’s crust buckled into great folds, similar to a washboard. This created mountains known as “folded Mountains.” Instead of folding, the earth’s crust sometimes broke into huge blocks, forming “block mountains.”

At times, the earth’s crust changed without folding or breaking, but by lifting into blister like domes. This kind of movement formed our “dome mountains.” Then, there are the “volcanic mountains,” which were built up by lava eruptions.

Mountains can also form by way of erosion. Plateau mountains are not formed by internal activity. Instead, these mountains are formed by erosion. Plateaus are large flat areas that have been pushed above sea level by forces within the Earth, or have been formed by layers of lava.

The dictionary describes these as large areas of ‘high levels’ of flat land, over 600 meters above sea level.

Plateau mountains are often found near folded mountains. As years pass, streams and rivers erode valleys through the plateau, leaving mountains standing between the valleys. These are the several different ways the mountains form. One thing these methods have in common is that they all take millions of years!

Content for this question contributed by Elizabeth Stine, resident of Felton, York County, Pennsylvania, USA