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10 Cards in this Set
- Front
- Back
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What do you call melted rock?
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magma
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What do you call molten rock that has reached the earth's surface?
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lava
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Name the large depression at the top of a shield volcano.
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crater
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Name the large bowl-shaped depression formed when an underground magma chamber caves in.
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calderas
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What are volcanoes that have not erupted in recorded time and are not likely to ever erupt?
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extinct
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Name the holes or cracks serving as escape vents for underground gases.
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fumaroles
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What are volcanoes which erupted many years ago but are still capable of erupting?
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dormant
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What kind of volcano is formed by alternating layers of fluid lava and tephra?
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a composite volcano
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What kind of volcano is formed by eruptions composed mostly of tephra, or small fragments fo solidified lava?
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cinder cone volcano
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What type of volcanic eruption produces a large amount of fluid lava that surges from the vent like water from a fountain?
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Hawaiian eruption
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