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Which of the following is not connected or involved with shock metamorphism?


A) mylonites
B) impactiles
C) coesite
D) asteroids

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Foliation in metamorphic rocks is mainly evident in the parallel alignment of certain mineral grains. What are they?

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Which of the following environments would exhibit sheared and mechanically fragmented rocks?


A) regional metamorphism of pyroclastic volcanic rocks
B) intense compression in a deep- seated, regional metamorphic zone
C) fault movements at shallow depths
D) heating of shales and mudstones near a pluton

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Is it always possible to determine the original parent rock (called a protolith)prior to metamorphism? Why or why not? List three protoliths and give a possible metamorphic equivalent for each one.

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No, it is not always possible to determi...

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Word Analysis. Examine the words and/or phrases for each question below and determine the relationship among the majority of words/phrases. Choose the option that does not fit the pattern.


A) phyllite
B) marble
C) slate
D) schist

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What major change occurs during metamorphism of limestone to marble?


A) Calcite grains are dissolved away leaving only marble crystals.
B) Limestone grains react to form quartz and feldspars.
C) Calcite grains grow larger and increase in size.
D) Clays crystallize to micas, forming a highly foliated, mica- rich rock.

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_________is typically formed by metamorphism of a sandstone.


A) Slate
B) Quartzite
C) Marble
D) Amphibolite

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Which rock has the finest grain size?


A) phyllite
B) slate
C) marble
D) gneiss

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Is the texture of a metamorphic rock always indicative of the conditions (degree of metamorphism)under which it formed? (Hint: Think about the protolith and how it may influence the resulting metamorphic rock.)

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The mineral composition of the parent ro...

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List the three most important agents of metamorphism.

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heat, pres...

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_________is a strong, parallel alignment of coarse mica flakes and/or of different mineral bands in a metamorphic rock.


A) Foliation
B) Marbleizing
C) Stress streaking
D) Rock cleavage

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What is the major source of heat for contact metamorphism?


A) heat from the spontaneous decomposition of micas and feldspars
B) deep burial and heat from the Earth's interior
C) heat from grinding and shearing on faults
D) heat from a nearby magma body

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What type of sedimentary rock is typically metamorphosed to form slates or phyllites?

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In which setting would regional metamorphism be most likely?


A) at shallow depths below an oceanic ridge or rift zone
B) at great depths in the crust where two continents are colliding
C) at shallow depths beneath the seafloor where water pressures are immense
D) at shallow depths along major transform faults in the continental crust

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_________is characterized by the segregation of light- and dark- colored minerals into thin layers or bands.


A) Slate
B) Quartzite
C) Garnet hornfels
D) Granitic gneiss

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Briefly outline how regional metamorphism is related to plate boundaries. Are certain types of metamorphic rocks indicative of particular plate boundaries or tectonic settings? Give two or three examples of such rocks and indicate the tectonic environment they represent.

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Regional metamorphism is typically assoc...

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Which of the following forms at the highest grade of regional metamorphism?


A) schist
B) hornfels
C) phyllite
D) slate

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Amphibolite is a foliated metamorphic rock composed principally of hornblende and plagioclase. It forms_________ .


A) by regional metamorphism of volcanic rocks such as basalt
B) by contact metamorphism of sandstone along the contact with a granitic batholith
C) by gouging and crushing of limestone along a fault
D) by the impact of an asteroid on interbedded sandstone and shale

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Which type of metamorphism occurs specifically in the heated zone around a pluton or other body of magma?

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