Types of MOUNTAINS
Have you 1)
wondered how mountains are formed? Fault-Block Mountains
If you know about volcanoes, you know a little bit already. The
Sometimes there is pressure inside a plate that makes it crack
Earth's crust is made 2)
of over 50 tectonic plates instead 5)
folding. Geologists call this crack a faul
that push and pull to form mountains, and this happens so slowly line. The pressure from inside the Earth pushes the crust of one or
that we don't even notice it. The wind, rain and ice also cause 6)
sides of the fault line up. This forms mountains
mountains to change shape. There are several types of mountains, like the Sierra Nevada range in California, USA.
so let's take a closer look at the three most common ones.
Dome Mountains
Fold Mountains
Finally, dome mountains get their name because they look
The most common type of mountain, formed over millions of years, 7) a dome, or the top half of a ball. They are formed
is the fold mountain. Fold mountains form 3) two when hot melted rock (magma) 8) under the
plates collide. The plates push against 4) other and
other and Earth's surface pushes up against the Earth's crust without breaking
the edges fold upwards. These folds can form whole mountain it. The Weald in the southeast of England was formed in this way.
ranges, such as the Alps and the Himalayas.
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