TEST BANK FOR PHARMACOLOGY 10TH EDITION BY MCCUISTION
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GEOLOGY 101 METAMORPHIC ROCKS
QUESTIONS AND ANSWERS
Metamorphic rocks - ans-solid-state alteration of preexisting rocks ws ws wsws ws ws ws ws
Meta, Morphe - ans-change, form
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protoliths - ans-The preexisting rocks that are altered during metamorphism
ws wsws ws ws ws ws ws ws ws
Protoliths undergo changes in what two parts? - ans-texture and mineralogy
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Why do protliths texture and mineralogy change? - ans-
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variations in temperature, pressure, tectonic stress, and the amount of reactive water
ws ws ws ws ws ws ws ws ws ws ws
What do metamorphic not do? - ans-Melt
ws ws ws ws ws wsws
Foliation - ans-a planar fabric that cuts through the rock
ws wsws ws ws ws ws ws ws ws
How is foliation defined? - ans-
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alignment of platy minerals (i.e., micas), or creation of alternating light/dark bands
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Recrystallization - ans- ws wsws
Minerals change size and shape by dissolution and growth of crystals. The identity of the mineral do
ws ws ws ws ws ws ws ws ws ws ws ws ws ws ws ws
esn't changews
phase change - ans- ws ws wsws
New minerals form that have the same chemical formula but a different crystal structure
ws ws ws ws ws ws ws ws ws ws ws ws ws
neocrystallization - ans- ws wsws
New minerals form from old. Protolith minerals become unstable and undergo chemical reactions th
ws ws ws ws ws ws ws ws ws ws ws ws ws
at recycle elements to form a new mineral assemblage.
ws ws ws ws ws ws ws ws
pressure solution - ans- ws ws wsws
Mineral grains partially dissolve where their surfaces press together. Dissolved ions migrate in a thin
ws ws ws ws ws ws ws ws ws ws ws ws ws ws ws
water film and reprecipitate. This process requires small amounts of water
ws ws ws ws ws ws ws ws ws ws
plastic deformation - ans-
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Mineral grains soften and deform when rock is squeezed or sheared at elevated temperature and pr
ws ws ws ws ws ws ws ws ws ws ws ws ws ws ws
essure. The minerals change shape without breaking, like a plastic.
ws ws ws ws ws ws ws ws ws
The agents of metamorphism? - ans-Heat, pressure, compression and shear, and hot water
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What does Metamorphism occur? - ans-between 250oC and 850oC
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Compression - ans-stress that is greater in one direction ws wsws ws ws ws ws ws ws
Shear stress - ans-moves part of a material sideways causing it to be smeared out
ws ws wsws ws ws ws ws ws ws ws ws ws ws ws
TESTBANKWORLD.ORG
ws ws ws ws ws ws ws
GEOLOGY 101 METAMORPHIC ROCKS
QUESTIONS AND ANSWERS
Metamorphic rocks - ans-solid-state alteration of preexisting rocks ws ws wsws ws ws ws ws
Meta, Morphe - ans-change, form
ws ws wsws ws
protoliths - ans-The preexisting rocks that are altered during metamorphism
ws wsws ws ws ws ws ws ws ws
Protoliths undergo changes in what two parts? - ans-texture and mineralogy
ws ws ws ws ws ws ws wsws ws ws
Why do protliths texture and mineralogy change? - ans-
ws ws ws ws ws ws ws wsws
variations in temperature, pressure, tectonic stress, and the amount of reactive water
ws ws ws ws ws ws ws ws ws ws ws
What do metamorphic not do? - ans-Melt
ws ws ws ws ws wsws
Foliation - ans-a planar fabric that cuts through the rock
ws wsws ws ws ws ws ws ws ws
How is foliation defined? - ans-
ws ws ws ws wsws
alignment of platy minerals (i.e., micas), or creation of alternating light/dark bands
ws ws ws ws ws ws ws ws ws ws ws
Recrystallization - ans- ws wsws
Minerals change size and shape by dissolution and growth of crystals. The identity of the mineral do
ws ws ws ws ws ws ws ws ws ws ws ws ws ws ws ws
esn't changews
phase change - ans- ws ws wsws
New minerals form that have the same chemical formula but a different crystal structure
ws ws ws ws ws ws ws ws ws ws ws ws ws
neocrystallization - ans- ws wsws
New minerals form from old. Protolith minerals become unstable and undergo chemical reactions th
ws ws ws ws ws ws ws ws ws ws ws ws ws
at recycle elements to form a new mineral assemblage.
ws ws ws ws ws ws ws ws
pressure solution - ans- ws ws wsws
Mineral grains partially dissolve where their surfaces press together. Dissolved ions migrate in a thin
ws ws ws ws ws ws ws ws ws ws ws ws ws ws ws
water film and reprecipitate. This process requires small amounts of water
ws ws ws ws ws ws ws ws ws ws
plastic deformation - ans-
ws ws wsws
Mineral grains soften and deform when rock is squeezed or sheared at elevated temperature and pr
ws ws ws ws ws ws ws ws ws ws ws ws ws ws ws
essure. The minerals change shape without breaking, like a plastic.
ws ws ws ws ws ws ws ws ws
The agents of metamorphism? - ans-Heat, pressure, compression and shear, and hot water
ws ws ws ws wsws ws ws ws ws ws ws ws
What does Metamorphism occur? - ans-between 250oC and 850oC
ws ws ws ws wsws ws ws ws
Compression - ans-stress that is greater in one direction ws wsws ws ws ws ws ws ws
Shear stress - ans-moves part of a material sideways causing it to be smeared out
ws ws wsws ws ws ws ws ws ws ws ws ws ws ws
TESTBANKWORLD.ORG
