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7 Cards in this Set
- Front
- Back
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Features of volcanoes
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vent/crater
pipe/neck--where lava comes out magma chamber--often irregularly shaped parasitic cone/satellite volcano--develops on the side of the volcano fumarole--gas vent on side of volcano |
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caldera
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huge crater formed by disembowelment and collapse
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cinder cone volcano
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Small; about 200 m high.
Emit felsic pyroclastics and have explosive eruptions. Examples: Paricutin, Sunset Crater |
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shield volcanoes
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Emit basaltic lava--runny, not viscous, dense.
Gentle slopes. Enormous. Quiet eruptions Examples: Hawaiian Islands, Galapagos, Iceland |
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Stratovolcanoes/composite cones
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Emit felsic pyroclastics and basaltic lava.
This category includes volcanic domes, which emit rhyolite lava and pyroclastics. Intermediate slopes. Large. Violently explosive eruptions often result in calderas. |
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lahar
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volcanic mudflow
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nuée ardente
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A fast moving gaseous cloud of hot ashes and other material thrown out from an erupting volcano. Nuées ardentes are often incandescent.
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