how are mountains formed?

Answer 1

There are several different ways how mountains form.

Fault-block mountain:
If a fault exists in which one rock mass is moving up, and the other is stationary, or moving down, then the upward moving rock mass will form a mountain which rises up from the stationary or downward moving rock The Sierra-Nevada mountains in California are fault-block mountains.

Folded mountains:
When two moving plates push up against each other with extreme force, the crust can bend in an up and down, rolling pattern.

Volcanic mountains:
These mountains form when a hole is torn in the earth's crust. When this happens, plastic rock from the mantel rises up through the hole. The rock from the mantel is hot enough to melt, but the extreme pressure from the mantel keeps the rock in its solid form. When the rock is released from the mantel, a large amount of that pressure goes away, and the rock is free to liquefy, forming molten rock, or magma. This magma pushes against the crust of the earth. When this happens, the crust heaves upwards, forming a mountain. The crust can crack, forming a vent through which the magma can escape, and the result is a volcano. Mount St. Helens in southwestern Washington state is a volcanic mountain.

Domed mountain:
Sometimes, magma escapes from the mantel of the earth, but does not travel directly upwards. Instead, it flows underground. When this happens, the overlying rock is still pushed upward, but a vent is not formed. Thus, the magma is never released, and a volcano doesn’t form. Because the rock is pushed upwards, a mountain that often looks similar to a volcano is formed. Domed mountains are typically rounder and more sloping than a volcanic mountain. The Black Hills in South Dakota are domed mountains.

I hope this helps you...have a great day!

Answer 2

LOL Mountains are formed by the Earths Plates... as one plate pushes on top of another plate. the plates that has been pushed slides down.

The plate slides downward into the earth, it then begins to melt. The melted rock rushes upward along cracks and weak spots, bursting out as fiery Volcanoes. You can see a huge “ring of fire” where Volcanoes circle the Pacific Ocean.

Plates can stretch until they crack and slide, forming fault-block Mountains.

In the ocean, great underwater mountains are formed when plates spread away from one another, and melted rock pushes up through the gap.

So lol basically it means that when the Earth's tensions her hold - i.e. the plates move! =p hehe... - Mountains are formed as Volcanoes and when they cool down they gradually become Mountains... like Mt Fuji in Japan... even though it's still active... it's one of the Best Mountains around!!! hehe... ^-^'' ...

Anyway I hope that this information is understandable?
Sorry if it isn't but I'm also trying to complete my Homework as well as write this!!! hehe...

If you want more information I'd suggest that you either search for it via Google or whatever other search engine that you might use as theres plenty of them out there!!! hehe...

Anyway I hope you have a Very Nice Day!!! hehe... ^-^ ...

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Answer 3

Here are some of the ways that mountains form:

Two plates can press against each other until the land is lifted and folded over itself.

One plate can push on top of another one. As one plate slides downward into the earth, it begins to melt. The melted rock rushes upward along cracks and weak spots, bursting out as fiery volcanoes. You can see a huge “ring of fire” where volcanoes circle the Pacific Ocean.

Plates can stretch until they crack and slide, forming fault-block mountains.

In the ocean, great underwater mountains are formed when plates spread away from one another, and melted rock pushes up through the gap.

Answer 4

Over long periods of time, mountains are created by tremendous forces in the earth with a steep top usually shaped up to a peak or ridge. Mountains occur more often in oceans than on land; some islands are the peaks of mountains coming out of the water. Mountains are formed by volcanism, erosion, and disturbances or uplift in the earth's crust. Most geologists believe that the majority of mountains are formed by geological forces heat and pressure producing changes under the earth's crust and movements in the earth's crust. They call this movement plate tectonics. This theory sees the crust of the earth divided into a number of vast rigid plates that move about at the rate of a few centimeters a year. The uplift is caused by the collision of plates below the earth's surface that triggers various geologic processes that produce this crustal uplift. Other processes are caused by horizontal compression that is the deformation of crustal strata which produces folds or wrinkles. The Himalayas, for example, were raised by the compression that accompanied collision of the Indian plate with the Eurasian plate. Another example is Europe's Alps and Jura mountains which were also formed by horizontal compression, generated in their case by collision with the African plate and the Eurasian plate.
Some ranges of low mountains are raised by nontectonic processes, and are caused by sculpturing effects of differential erosion. Erosion occurs when wind, rain and ice are present. Mountains are impacted by erosion through the combined action of wind, rain and ice changing the shapes of the mountains.

Volcanism causes mountains to form. Examples of mountains formed by periodically dangerous volcanic action are Mount Ranier and Mount Saint Helens in the United States, Mount Erebus in Antarctica, Mount Vesuvius in Italy, and Mount Fuji in Japan. Many of these volcanic mountains have summit craters that still emit steam and debris; others that no longer show signs of volcanic activity may only be dormant, not extinct. Shield volcanoes found in Mauna Loa and Mauna Kea in Hawaii are less spectacular even when quite high.

Answer 5

mountains are formed by the tectonic plates that are moving around under earths crust and then crash into each other and push the crust up which form mountains.

Answer 6

the deformation of the land that produces mountains is caused by two tectonic plates colliding and pushing up the land at the edges of both plates forming mountains...

Answer 7

how are mountain formed

Answer 8

orogeny is the result of faulting and uplift caused by continental collisions

volcanoes also build mountains

Answer 9

http://en.wikipedia.org/wiki/Mountain

Answer 10

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