A VOLCANO!

AQA GEOGRAPHY

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  • Created by: karolina
  • Created on: 25-05-09 21:16

THE VOLCANO

MAGMA RISES UP through cracks or weakenesses in earth's crust

MART CREC

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Pressure builds up inside the earth

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Pressure released magma explodes to surface causing volanic eruption.

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Lava from the eruption cools to form new crust.

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Over time after several eruptions rock builds up and a volcano forms.


Magma chamber = collection of magma

Main vent = main places for magma to escape

Secondary vent = smaller places through magma escapes

Crater = created after an eruption, blows top off volcano

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