Types of Eruptions
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Hawaiian Eruption
- Fluid basaltic lava is thrown into the air in jets from a vent or line of vents at the summit or on the flank of a volcano.


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Strombolian Eruption
- Distinct bursts of fluid lava from the mouth of a magma- filled summit conduit.


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Vulcanian Eruption
- Short, violent, relatively small explosion of viscous magma.

The most common type of volcanic eruptions occur when magma (lava) is released from a volcanic vent.



Types of Volcanoes
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Cinder Cones

- Simplest type of volcano.
- Built from particles and blobs of congealed lava ejected form a single vent.


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Composite Volcano
- Some of the Earth's grandest mountains are composite volcanoes
- They are typically step- sided, symmetrical cones of large dimension built of alternating layers of lava flows, volcanic ash, cinders, blocks, and bombs and may rise as much as 8,000 feet above their bases


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Shield Volcano
- Built entirely of fluid lava flows


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Lava Domes
- Formed by relatively small, bulbous masses of lava too viscous to flow any great distance; consequently, on extrusion, the lava piles over and around its vent.



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