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22 Cards in this Set
- Front
- Back
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True or False?
Granite contains mostly olivine? |
False
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True or False?
A concordant tabular intrusive igneous rock body is a sill? |
True
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T or F
A massive igneous intrusion greater than 40 square miles in area is a dike? |
False
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T or F
Most lava is basaltic? |
True
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T or F
Intrusive igneous rocks are produced from lava? |
False
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T or F
A thrust fault is a dip-slip fault? |
True
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T or F
The most abundant gas emitted from a volcano is sulfur dioxide? |
False
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T or F
Pelean eruptions are the most violent? |
False
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Intrusive rock body?
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pluton
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the downward inclination of a rock?
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dip
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eruption or explosion creates a crater around the volcanoe?
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Caldera
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What is the term given to all extrusive igneous rock bodies?
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volcanoes
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Igneous rocks are classified by what two characteristics?
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Texture and Composition
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List types of strain
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elastic,brittle, and plastic
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List three volcanic features
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aa, lava tubes, and columnar jointing
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Ropy lava is known as?
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Pahoe hoe
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Volcanoes are classified according to?
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Activity, eruption intensity, and cone structue
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solid material ejected from a volcano are called?
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Tephra
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A glowing cloud of ash that moves down the slopes of a volcano is called a?
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Neu a ardente
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Surfaces that are smoothed and grooved during faulting are termed?
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slicken sides
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Volcanic vents that emit only gas?
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fumeroles
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Rock layers that are turned upward like a smile are called?
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synclines
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