Chapter 8 Metamorphism and Metamorphic Rocks
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Geology
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Jan 9, 2024
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C H A P T E R 8 : M E T A M O R P H I S M A N D
M E T A M O R P H I C R O C K S CHAPTER HOMEWORK QUESTIONS (36 POINTS)
1.
Each of the following statements describes one or more characteristics of a particular metamorphic rock. For each statement, identify the metamorphic rock or rocks being described as referenced in the textbook (hint p.245):
(14 points)
a.
calcite-rich and nonfoliated Marble
b.
composed of alternating bands of light and dark silicate minerals Gneiss
c.
represents a grade of metamorphism between slate and schist
Phyllite
d.
composed of tiny chlorite and mica grains and displaying excellent rock cleavage
Slate
e.
foliated
and composed predominantly of platy materials Schist
f.
hard and nonfoliated
, often produced by contact metamorphism
Marble, Quartzite, Hornfels
g.
loosely coherent and composed of broken fragments that formed along a fault zone
Fault breccia
2. Refer to the accompanying diagram and match each labeled area with the appropriate environment listed below: (10 points) a
. contact metamorphism b
. subduction metamorphism c.
regional metamorphism d
. burial metamorphism e
. hydrothermal metamorphism
C
B
A
D
E
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3. Examine the accompanying close-up images of six different rocks labeled A–F. Classify them as igneous, sedimentary, or metamorphic, based on texture. (Hint: There are two of each rock type.)
(12 points) A
Igneous
B
Metamorphic
C
Igneous
D
Sedimentary
E
Metamorphic
F
Sedimentary
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