Types of Volcanoes

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Types of Volcanoes
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Cinder-Cone -most common type of volcano -made up
of layers of ash and cinders
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Shield Volcano -large volcanoes that are built
almost entirely of fluid lava flows. It has broad
sloping sides and is usually surrounded by gently
sloping hills in a circular or fan shaped
pattern, that looks like a warrior's shield.
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Composite Volcano A composite volcano is built by
alternating eruptions of lava and pyroclastic
material.
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Subduction Zone
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Plate Tectonics -Theory that the earths crust is
broken into plates.
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Ring of Fire -the ring of volcanoes that circles
the pacific plate.
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• Hot Spots
• Places where volcanoes develop away from plate
  boundaries.

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• Divergent the boundary where two plates are
  separating. The plates move in opposite
  directions and magma rises to fill in void.

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• Transform boundary where two plates slide past
  each other.

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1) Convergent boundary where two plates collide
causing Mountain building Subduction Zone
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Pyroclastic Flows -rock fragments and hot gases
that move quickly down the sides of a volcano
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Tsunamis