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The movement of Tectonic Plates forms mountains by two different mechanisms.

In the case of Colliding Plates, we have mountain ranges built up such as the Himalayas, and even the Appalachian Mountains in the USA. The Himalayas are the result of the Indian Plate colliding with the Asian Plate. The Appalachians are the result of collisions between Africa and the N American Plate.

Similar compressive forces can form 'Basin and Range' systems of parallel mountain ranges. Where I live in the S Island of New Zealand, there are at least half a dozen of parallel ranges.

In other conditions, these forces may create Block mountains, with significant fault systems.

In the case of Subducting Plates, where one plate is thrust below another one, the upper block will be elevated, and the subducting one will merge into the earth's interior. As the subducting plate submerges, it will become hotter, and eventually its material will melt, and when this melt makes the way to the surface, volcanoes will be formed. The conspicuous example of this is in S America, where the uplift creates the elevated plains, and behind that, the Andesite volcanoes.

Of course, in addition to simple frontal collision, there may be significant sideways shear movements as well.

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9y ago
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11y ago

In the proses of a subduction, one plate (normally an oceanic plate) is formed beneath another into the solid but fluid mantle below. When the subducted plate is thicker, less dense continental plate, it resists being pushed into the thicker rock, and pushes upward on the overlying plate. This buckles the overlying crust and increases its elevation.

It should not be noted that mountains are "built" almost as slowly as they are eroded the proses taking place over tens of millions of years.

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Q: How do plates form mountains?
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What is the most common way mountains form?

Mountains form on shifting tectonic plates


The kind of plates that cause mountains to form?

colliding plates


What mountains to form?

Movement of the plates.


When two continental plates collide what happens?

When two continental plates collide they form mountains .


What plates form atlas mountains?

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How do mountains form at plates boundaries?

mountains are made when the crust folds, tilts ,and lifts as a result of this meeting of plates.


How do earth mountains form and erode?

Earth's mountains form and erode from erupting and by shifting plates.


How are residual mountains form?

Residual mountains are formed by the plates in the earth moving


How do most of the highest mountains form?

They form by plates pushing upwards


The movement of what can form mountains and valleys?

tectonic plates


What two plates collided to form the Appalachian mountains?

The North American and African plates


How do mountains and volcanos form?

when to different plates push up to form a volcano