How do mountains form?

Answer

Mountains form as a result of disturbances in the Earth’s crust, erosion and volcanism. The most common way that mountains form is when the Earth’s tectonic plates collide. Tremendous forces cause places with a steep top to shape up to a peak or ridge.

According to geologists, most mountains are created from geological forces, heat and pressure. These elements produce changes and movements in the Earth’s crust. This is called plate tectonics, which is a theory that states that the Earth’s crust is divided into various rigid plates that move a few centimeters each year. Various geologic processes occur when these plates collide, resulting in a crustal uplift. Horizontal compression, which involves the deformation of crustal strata and causes folds or wrinkles, also triggers other geologic processes. For example, the Himalayas formed from the collision and compression of the Indian plate against the Eurasian plate.

Low mountains are typically formed through nontectonic processes and differential erosion. The shapes of mountains are affected by erosion through the combined effects of rain, wind and ice.

Another way that mountains form is through volcanic activities below the Earth’s surface. Magma cools and becomes hard rock when it rises to the surface. Eventually, it reveals a dome-shaped mountain when the softer rock above it erodes.

Reference:
Q&A Related to "How do mountains form?"
The Taconic Orogeny (mountain building) in the Ordovician Age (430 million years ago) was the first of three plate collisions on the east coast of North America. The "core"
http://www.ehow.com/about_5521767_pocono-mountains...
There are several ways. It depends on what sort of mountain your talking about. Mountains form due to the movement of tectonic plates under the earths crust. for example there is
http://wiki.answers.com/Q/How_does_a_mountain_form
It seems that since mountain ranges are created through the collision of tectonic plates ("theoretically"!), the scale of mountain creation is somewhere on the scale of
http://www.quora.com/How-long-does-it-take-for-a-m...
An alpine glacier.
http://wiki.answers.com/Q/What_glacier_forms_in_a_...
Explore this Topic
The Cradle Mountain in Australia was formed through glaciation when an ice cap was formed and from it edge glaciers streamed to carve the landscape. It was named ...
Snowy Mountains were formed after highest peaks of the main range near Mount Kosciuszko experienced a climate which favored the formation of glaciers. For example ...
The Cascade Mountain range was formed by the pressure created by the collision of the North American plate and the Juan de Fuca plate. The North American plate ...
About -  Privacy -  Careers -  Ask Blog -  Mobile -  Help -  Feedback  -  Sitemap  © 2014 Ask.com