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12 Cards in this Set
- Front
- Back
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hot spot |
Hot areas found within a plate, not at the edges of a plate |
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lava |
Magma on the Earth’s surface |
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Subduction boundary |
Where many volcanoes are formed |
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Crater |
Hole at the top of a volcano |
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Shield cone volcano |
gentle sloping sides, quiet eruptions, lava layers, wide base |
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Cinder cone volcano |
steep sides, explosive eruptions, rock layers, narrow base |
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Composite cone volcano |
somewhat steep sides, both quiet and explosive eruptions, layers of rock and lava, medium base |
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Caldera |
Volcano with a very wide opening at the top |
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Tephra |
material that comes out of a cinder cone volcano |
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San Andreas |
major fault found in CA |
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Silica |
Amount in a volcano determines if the eruption will be quiet or explosive |
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Pyroclastic flow |
fast-moving, destructive lava from volcano |
