Understanding Earth

Geology/Geography/Oceanography/Atmospheric Sciences

Quiz 6 :

Metamorphism: Alteration of Rocks by Temperature and Pressure

Quiz 6 :

Metamorphism: Alteration of Rocks by Temperature and Pressure

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What is the average rate at which temperature increases with depth in Earth's crust?
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B

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What is metasomatism?
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A

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Which of the following rocks represents the highest metamorphic grade?
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A

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Which of the following is not used to classify foliated rocks?
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Which of the following is a general pressure in all directions,such as the pressure that the atmosphere exerts?
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Marble is a metamorphic rock that forms from
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Where does seafloor metamorphism take place?
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During metamorphism,changes in the bulk composition of a rock occur primarily as a result of
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Which of the following processes will cause metamorphism?
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The parallel alignment of mica in a metamorphic rock is an example of
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What type of metamorphism is caused by igneous intrusions?
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What is the relationship between metamorphic foliation and sedimentary bedding?
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A geothermometer is
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Which of the following tectonic settings will be coolest at 30 km depth?
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What type of metamorphic rock was once used to make blackboards because of its ability to split easily into thin sheets along smooth,parallel surfaces?
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At what depth does low-grade metamorphism begin?
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What type of metamorphism is caused by high temperature and high pressure imposed over a large volume of crust?
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Approximately what is the pressure on a rock at 15 km depth in Earth's crust? (Note: 1 bar is approximately 1 atmosphere and 1000 bars equals 1 kbar.)
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What is the primary source of the carbon dioxide in metamorphic fluids?
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Which of the following minerals is diagnostic of metamorphism?
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