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23 Cards in this Set
- Front
- Back
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Describe the three types of volcanoes.
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Cinder-cone volcanoes, composite volcanoes, and shield volcanoes
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Describe the type of eruptions you would expect from the three types of volcanoes.
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Quiet eruptions and Explosive eruptions
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Describe the three stages of a volcano.
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Active volcano, Dormant Volcano,Extinct Volcano
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If geologists detect many small earthquakes in the area near a volcano, what can they infer about the volcano?
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It is still an active volcano.
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Tall, cone-shaped mountains in which layers of lava alternate with layers of ash are called?
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Composite Volcano
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The result, when many layers of thin, runny lava build up a high, level area
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Lava plateau
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The huge hole left by the collapse of a volcanic mountain is called?
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Caldera
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When magma hardens in a volcano’s pipe, the result will eventually be a landform called?
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Volcanic Neck
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A major volcanic belt that circles the Pacific
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The Ring Of Fire
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What provides the force that causes magma to erupt to the surface?
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Expanding Gases
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The bowl-shaped area around a volcano’s central vent is called?
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Crater
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Sometimes rising magma is blocked by horizontal layers of rock. The magma forces the layers of rock to bend upward into a landform called?
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Dike
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A mass of rock that forms when a large body of magma cools inside the crust is called?
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Batholith
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The name given to a string of islands that can form from the collision of two oceanic plates?
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Island Arc
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Volcanoes that form along a mid-ocean ridge occur at this type of boundary.
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Diverging Boundary
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A pyroclastic flow typically occurs during this type of eruption.
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Explosive Eruption
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The name describing a volcano that is erupting or may erupt in the near future.
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Dormant Volcano
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What type of volcano forms from ash, cinders, and bombs build up in a steep pile?
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Shield Volcano
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What forms when magma forces itself between rock layers and hardens.
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Sill
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In which location would you most likely find volcanoes?
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Volcanic belts form along the boundaries of Earth’s surface.
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Before lava reaches the surface, the molten material is called
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Magma
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The main factor that accounts for the difference between quiet and explosive volcanic eruptions is what?
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Silica
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The main hazard from a quiet volcanic eruption is?
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A thick layer of lava can cover large areas
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