Earth Science: Geology, the Environment, and the Universe

Section 3: Metamorphic Rocks

Metamorphic Rocks

1
__________ metamorphic rocks are formed at high temperatures and medium to low pressures.
A)Regional
B)Contact
C)Low-grade
D)Hydrothermal
2
Before metamorphism, marble was what type of rock?
A)schist
B)rock salt
C)siltstone
D)limestone
3
Metamorphic rocks with aligned minerals have a __________ texture.
A)distinct
B)compact
C)nonfoliated
D)foliated
4
What do different grades of metamorphic rocks reflect?
A)relative amount of compaction
B)relative amount of pressure only
C)relative amount of temperature and cementation
D)relative amount pressure and temperature
5
What type of metamorphic rock is a result of increased pressure and temperature affecting large regions of Earth's crust?
A)regional metamorphism
B)hydrothermal metamorphism
C)contact metamorphism
D)foliated metamorphism
6
Using the figure, what is the temperature range to produce low-grade regional metamorphic rock?
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A)0-200 degrees C
B)0-375 degrees C
C)200-600 degrees C
D)more than 750 degrees C
7
According to the figure above, which is NOT a factor in determining regional metamorphism grades
A)pressure
B)depth
C)heat
D)time
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