Types of Mountains

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Types of Mountains

• Folded
• Fault-block
• Volcanic
• Unwarped

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FOLDED MOUNTAINS
http//www.cssd11.k12.co.us/dohnts/images/earth/fl
dmtn.jpg
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FOLDED MOUNTAINS

• Appalachian Mountains in the eastern United
  States, and the Swiss Alps in Switzerland
• form when two plates collide head on, and their
  edges crumble
• consist mainly of sedimentary rocks, like
  limestone and shale

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FAULT-BLOCK MOUNTAINS
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FAULT-BLOCK MOUNTAINS

• Consist of huge blocks of the earth's crust that
  have been tilted or pushed up along a fracture
  line called a fault
• Sierra in California, Arizona is an example.
• Created when a plate hits a fault and tips
  upside down, creating erosion and debris, which
  is at the base of the mountain.

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VOLCANIC MOUNTAIN
NAMIBIA IN AFRICA
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Volcanic mountains

• Formed when molten rock, or magma deep within the
  earth, erupts, and piles upon the surface
• Made of basalt and rhyolite.
• Takes place where two of the earth's tectonic
  plates collide.

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UNWARPED MOUNTAINS

• Black Hills in South Dakota
• form when tectonic forces lift the earth's crust
  into a broad bulge or dome raising it above its
  surroundings
• Erosion causes peaks and valleys to form.

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• largest single mountain in the world
• 30,000 feet above the ocean floor
• 100 miles across at its base.