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13 Cards in this Set
- Front
- Back
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batholith
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largest instructive igneous rock body that forms when magma is being forced upward.
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caldera
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large, circular-shaped opening when formed when the top of a volcano collapses.
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cinder cone volcano
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steep-sided,loosely packed volcano formed when tephra falls to the ground.
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composite volcano
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a volcano built by alternating explosive and quiet eruptions that produce volcano.
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crater
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steep-walled depresion dround a volcano's vent.
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dike
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igneous rock feature formed when magma is squeezed into a vertical.
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hot spot
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the result of an unusually hot area at the boundary between Earth's mantle and core.
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shield volcano
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broad gently sloping volcano formed by quiet eruptions of balastic lava.
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sill
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igneous rock feature formed when magma is squeezed into a horizontal crack.
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tephra
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bits of rock or solidfied lava dropped from the air during an explosive volcanic eruption.
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vent
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opening where magma is forced up and flows out into Earth's surface as lava forming a volcano.
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volcano neck
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solid igneous rock core of a volcano left behind after the softer cone has been eroded.
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volcano
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opening in Earth's crust that erupts sulfurous gases, ash, and lava
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