MOUNTAINS ARE FORMED BY PLATE COLLISION BRITT ARGOW

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MOUNTAINS ARE FORMED BY PLATE COLLISION
BRITT ARGOW: When two plates come together, mountains are pushed
up, and rock is deformed. Is this what happens? Do mountains form when
plates collide? Scientists believe the answer is yes. When two plates made
up of continental material slam into one another, the collusion puts
continuous focused pressure on the rocks near the plate boundaries. This
pressure is accompanied by tremendous amounts of heat, making the rock
malleable. Since continental plates are less dense and more buoyant than
the mantle, the rock has nowhere to go but up. Very slowly, over millions of
years, the heat and pressure deform and fold the rock. Sometimes, when
the rock is brittle or the stresses become too great, the rock breaks. This
crack is called a fault. As collisional pressures continue, broken segments
of rock can be thrust on top of each other along fault lines. Over time, more
folding and more faulting occurs, thrusting the rock higher and higher.

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