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Types of Volcanoes

Fissure Volcano
Fissure volcanoes occur where an elongated crack in the crust allows lava
to spill out over a large area.
They are found at constructive plate margins.
Typically they are found around spreading ridges where tension pulls the
crust apart.
Fissure volcanoes produce basaltic lavas.

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Acid or Dome Volcanoes
Acid or dome volcanoes are located on continental crust.
They are steep sided volcanoes formed from very viscous lava.
As the lava cannot travel far, it builds up convex shaped volcanoes.
Lava may solidify in the vent and be revealed later by erosion.
Eruptions are explosive…


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