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Types of Mountains & How they Form

Dome Mountains – Upward folded mountains that look like a bowl turned upside down. Folded Mountains - formed by the folding of rock layers caused by pressure. Types of Mountains & How they Form. Anticlines – upward folds in the rock layers. They look like the letter “A”.

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Types of Mountains & How they Form

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  1. Dome Mountains – Upward folded mountains that look like a bowl turned upside down. Folded Mountains -formed by the folding of rock layers caused by pressure. Types of Mountains & How they Form

  2. Anticlines – upward folds in the rock layers. They look like the letter “A”. Synclines – downward folds in the rock layers.

  3. Fault Block Mountains – formed by the folding of rock layers. Pressure actually cracks the rock into pieces that move. Normal fault – fault along which the movement is vertical.

  4. Reverse fault – fault in which the crust above the fault plane rises in relation to the crust below. Strike-slip fault – fault along which the movement is horizontal.

  5. Thrust Fault – a low-angle reverse fault. Volcanic Mountains – where volcanic eruptions occur. Formed from the materials that collect around the vent. There are 3 types of volcanic mountains.

  6. Shield Cone – formed by cooled lava from gentle eruptions. Ex: Hawaiian Volcanoes Cinder cone – formed from cinders, steep sides and narrow bases. Ex: Parícutin

  7. Composite cone – made up of layers of rock and lava, from both gentle and explosive eruptions. Wide cone with steep sides. Ex: Mount St. Helens

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