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10 Cards in this Set
- Front
- Back
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Shield volcano |
A wide, gently sloping mountain made of layers of lava and formed by quiet eruptions. |
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Cinder cone |
A steep, cone-shaped hill or small mountain made of volcanic ash, cinders, and bombs piled up around a volcano's opening. |
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Composite volcano |
A tall, cone-shaped mountain in which layers of lava alternate with layers of ash and other volcanic material. |
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Caldera |
The large hole at the top of a volcano formed when the roof of a volcano's magma chamber collapses. |
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Volcanic neck |
A deposit of hardened magma in a volcano's pipe. |
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Dike |
A slab of volcanic rock formed when magma forces itself across rock layers. |
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Sill |
A slab of volcanic rock formed when magma squeezes between layers of rock. |
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Batholith |
A mass of rock formed when a large body of magma cools inside the crust. |
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Geothermal activity |
The heating of underground water by magma. |
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Geyser |
A fountain of water and steam that builds up pressure underground and erupts at regular intervals. |
