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| A mountain that forms when molten rock, called magma, is forced to the Earth's surface. |
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| Magma that flows onto the Earth's surface. |
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| Consists of the rock fragments created by explosive volcanic eruptions. |
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| Built out of layers of lava from repeated nonexplosive eruptions. |
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| Small volcanic cones made entirely of pyroclastic material from moderately explosive eruptions. |
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| (stratovolcanoes) They form by explosive eruptions of pyroclastic material followed by quieter outpourings of lava. |
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| At the top of the central vent in most volcanoes is a funnel-shaped pit. |
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| Forms when a magma chamber that supplies material to a volcano empties and its roof collapses. |
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| As the tectonic plates separate, a deep crack, forms between the plates. |
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| Places on the Earth's surface that are directly above columns of rising magma. |
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