Geography 3.0 / 5 based on 1 rating ? GeographyRock landscapes and processesGCSEAQA Created by: Danni KayCreated on: 30-01-13 10:23 Super Volcano's Magma rises up through the cracks in the crust to form a large magma basin. 1 of 10 Super Volcano's The pressure of the magma causes a circular bulge on the surface several kilometeres wide. 2 of 10 Super Volcano's The bulge eventually cracks, creating vents for lava to escape through. 3 of 10 Super Volcano's The lava erupts out of the vents causing earth quakes and sending up gigantic plums of ash and rock. 4 of 10 Super Volcano's As the magma chamber empties, the bulge is no longer supported, so it collapes causing more lava spewing. 5 of 10 Super Volcano's When the eruptions finished theres a big crater (called a caldera) left where the bulge collapsed. 6 of 10 Super Volcano's Sometimes these get filled with water to form a large lake. 7 of 10 Super Volcano's Characteristics Super volcano's are flat, unlike normal volcano's which are mountains. 8 of 10 Super Volcano's Characteristics Cover a large area, much bigger than normal volcano's. 9 of 10 Super Volcano's Characteristics Have a Caldera, unlike normal volcano's which have just a crater at the top 10 of 10
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