Mountains

How are mountains formed.

Mountains are formed when Earth’s crust is pushed up in big folds or forced up or down in blocks. Also, there are many different types of mountains for example fold , block, dome  and volcanic mountains. Did you know , that mountains become jagged because they are constantly eroded .Mountains form over a course of a million years .

Block mountains.

Block mountains begin to form when a slab of land Breaks off and is forced up as two of earth’s tectonic plates pull apart or push together. The pieces on the side of a block mountain are forced down ,while the mountain is forced up .

Dome mountains .


dome mountains occur when liquid rock inside the earth forces the ground above it upwards . This swelling doesn’t break through the surface. The force(or pressure) produces a dome like shape .

Fold mountains.


Fold mountains of most common type of mountain. The tectonic plates push for forward slowly over the years, making more and more folds. The Himalayas in Asia are a good example of fold mountains . They are 50 million years old .which is actually quite new ! Many mountain ranges are much older .The Himalayas began to form when the Indian plate collided which the Asian plate . Mount Everest in the Himalayas is the highest point on earth .

Plateaus .

Plateaus are flat areas of land found in high places .When a mountain is formed blocks of can drop and lift next to each other to produce a high mountain and a lower plateau.

 

 

A brilliant information page on mountains and how they are formed. Great use of subheadings and pictures.