Types of Volcano

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  • Created by: maleha
  • Created on: 01-05-13 17:19
  • Volcanoes can occur along destructive, or constructive plate boundaries.

Composite Volcano - Mount ST Helens, USA


Composite volcanoes are found at destructive boundaries. They have very steep sides, along a narrow base. They are made up of layers of ash and lava. They produce sticky andesitic lava, which tends to block up the main vent. This leads to a significant increase in pressure, resulting…


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