METAMORPHIC ROCKS QUIZ QUESTIONS AND ANSWERS

TEST BANK FOR PHARMACOLOGY 10TH EDITION BY MCCUISTION
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METAMORPHIC ROCKS QUIZ QUESTIONS
AND ANSWERS


________ is the process where a rock changes form or mineral content as a result of environmental
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changes such as heat and pressure. - ans-C. Metamorphism
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What is the definition of a parent rock? - ans-A. The rock that was altered by metamorphism
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Which of the following is the parent rock for quartzite? - ans-D. Sandstone
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If clay minerals were buried at a depth where subsurface temperatures exceed 200°C, which mineral
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are they likely to become? - ans-B. Muscovite
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Which low- ws




grade metamorphic rock will display fine rock cleavage and contains very fine grains of mica? - ans-
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D. Slate ws




Which of the following lists of metamorphic rocks places the rocks in order from lowest metamorphic
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grade to highest? - ans-C. Slate, Phyllite, Schist, Gneiss
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Which of the following rocks represents the highest grade of metamorphism? - ans-D. Gneiss
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________ is when new mineral grains form as a result of metamorphic heat that are larger than the o
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riginal mineral grains. - ans-A. Recrystallization
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What is the definition of metasomatism? - ans-
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C. The change in chemical composition because hot fluids are bringing or removing ions
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Generally speaking, how is the chemical composition of most metamorphic rocks going to compare t
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o that of the parent rock? - ans-A. Chemical compositions will be nearly the same
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What kind of force will create foliation in metamorphic rocks? - ans-B. Compression
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What is foliation? - ans-
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D. Roughly parallel layers of mineral crystals aligned perpendicular to the direction of pressure
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Which of the following is not an example of foliation? - ans-
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D. Recrystallization of elongated minerals parallel to the direction of greatest stress
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Physical rotation of platy minerals will contribute most to the development of foliation ________ grad
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e metamorphism. - ans-A. Low
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Metamorphic rocks can sometimes contain unusually large grains surrounded by a fine-
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grained matrix of other minerals. These large crystals are called ________. - ans-D. Porphyroblasts
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Which of the following is not an environment of metamorphism? - ans-
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C. Metamorphism as the result of slow cooling of magma
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