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Building Mountains
By: Team 2
A mountain is a large piece of land formed by continents colliding with each
other. There are 3 different types of mountains: Folded, Fault-Block, and
Volcanic. Convergent boundaries form all three of these types of mountains.
Folded Mountains
The highest mountain ranges in the world are folded mountains. These
mountains form when two continents have collided. Folded mountains
form when rock layers get pushed together and squeezed upwards.
Sometimes folded mountains can form from convergent boundaries. A
long time ago the Appalachian Mountains were formed when North
America and Africa collided. Europe , Russia, and Asia are most of the
places where folded mountains were formed.
Fault-Block Mountains
Fault-Block mountains form when tectonic forces put enough tension
on Earth’s crust, in a result, large blocks of Earth’s crust fall down to
other blocks. When sedimentary rock layers are tilted upwards, they
can make mountain with rough, jagged peaks. The Tetons in western
Wyoming show a great example of Fault-Block mountains.
Volcanic Mountains
Most, if not all of the world’s major volcanic mountains are located at
convergent boundaries where oceanic crust sinks into the
asthenosphere at subduction zones. The rock melts in subduction
zones from lava, then it rises to Earth’s surface and it erupts to form
volcanic mountains. These types of mountains even can form under
water, these mountains can even rise above the water and form
islands, just like Hawaii. The majority of these tectonically active
volcanoes on Earth have formed around the tectonically active of the
edge of the Pacific Ocean. This rim is known as the ‘Ring of Fire’.