Question 1

During metamorphism, most rock is composed of solid mineral grains, but small amounts of hot fluids or partial melting may facilitate the metamorphic process.

Accepted Answer

A) True 
 B)False

Question 2

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.

Accepted Answer

A)  aureole
B)  hornfels
C)  marble
D)  schistE) B) and C)
F) C) and D)

Question 3

Which two metamorphic rocks are each composed predominantly of a single mineral?

Accepted Answer

A)  mica schist and granitic gneiss
B)  fault breccia and graphitic schist
C)  garnet schist and andalusite hornfels
D)  marble and quartziteE) A) and C)
F) A) and B)

Question 4

The intensity and grade of ________ metamorphism is most intense where ________.

Accepted Answer

A)  burial (zeolite facies) , the soil horizon gives way to unaltered bedrock
B)  cataclastic (dynamic) , muds are shattered by raindrop impacts
C)  contact, clays are recrystallized and reacted entirely to chlorite
D)  regional, continents collide forming a mountain beltE) A) and B)
F) A) and C)

Question 5

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.

Accepted Answer

A)  porphyroblastic
B)  slaty cleavage
C)  schistosity
D)  gneissic textureE) A) and B)
F) All of the above

Question 6

Which facies would you expect to find with high temperature-low pressure contact metamorphism?

Accepted Answer

A)  hornfels
B)  amphibolite
C)  granulite
D)  blueschistE) B) and C)
F) A) and B)

Question 7

Graphite is identified in a particular schist.Which one of the following conclusions is justified?

Accepted Answer

A)  The rock also contains diamonds; both are crystalline forms of the element carbon.
B)  The schist formed from a quartz-rich, sedimentary limestone.
C)  The graphite lubricated shearing movements along a fault, causing a schist to form.
D)  The pre-metamorphic rock was a shale or mudstone containing organic matter.E) A) and B)
F) A) and C)

Question 8

What type of stress (pressure)is illustrated in the diagram below?

Accepted Answer

The answer of What type of stress (pressure)is illustrated in...

Question 9

Amphibolite is a foliated metamorphic rock composed principally of hornblende and plagioclase.How does it form?

Accepted Answer

A)  by contact metamorphism of quartzose sandstone cut by a granitic batholith
B)  by regional metamorphism of volcanic rocks such as andesite and basalt
C)  by gouging and crushing of limestone along a fault
D)  by the impact of an asteroid on interbedded sandstone and shaleE) None of the above
F) A) and B)

Question 10

What medium grade regional metamorphic rock is produced from shale as the parent rock?

Accepted Answer

The answer of What medium grade regional metamorphic rock is...

Question 11

Which rock forms by contact metamorphism of fine grained mudstones, shales, and volcanics?

Accepted Answer

A)  hornfels
B)  limestone
C)  gneiss
D)  phylliteE) B) and C)
F) A) and B)

Question 12

________ contain the oldest dated metamorphic rocks in Canada.

Accepted Answer

A)  The Acasta Gneiss, Northwest Territories
B)  The Grenville Province
C)  The Nuwuagittuq Greenstone, Quebec
D)  The Ungava OrogenE) None of the above
F) B) and C)

Question 13

In the formation of migmatites, which minerals start to melt first?

Accepted Answer

A)  amphibole, biotite, and garnet
B)  quartz and feldspar
C)  chlorite and calcite
D)  zircon and magnetiteE) A) and B)
F) A) and C)

Question 14

________ is a nonfoliated rock formed by the contact metamorphism of fine grained rocks like shales, mudstones, or volcanics.

Accepted Answer

A)  Schist
B)  Marble
C)  Gneiss
D)  HornfelsE) A) and D)
F) All of the above

Question 15

What is another term for gneissic texture?

Accepted Answer

The answer of What is another term for gneissic texture?...

Question 16

What two index minerals characterize the eclogite facies?

Accepted Answer

The answer of What two index minerals characterize the eclogite...

Question 17

Give the name of a rock formed by regional metamorphism of a conglomerate.

Accepted Answer

The answer of Give the name of a rock formed...

Question 18

In which setting would regional metamorphism most likely occur?

Accepted Answer

A)  at shallow depths below an oceanic ridge or rift zone
B)  at shallow depths along major transform faults on the continental crust
C)  at great depths in the crust where two continents are colliding
D)  on the rims of large meteorite impact cratersE) A) and D)
F) All of the above

Question 19

Where would you expect to find chlorite and zeolites filling up voids and fractures in relatively undeformed rocks?

Accepted Answer

A)  burial metamorphism of sedimentary or volcanic rocks
B)  intermediate grade metamorphism of limestones
C)  high grade metamorphism of layered sandstones and shales
D)  high temperature hornfels contact metamorphism of salts and rock gypsumE) B) and C)
F) A) and D)

Question 20

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.

Accepted Answer

A)  phyllite
B)  quartzite
C)  slate
D)  schistE) None of the above
F) C) and D)

Exam 7: Metamorphism and Metamorphic Rocks

During metamorphism, most rock is composed of solid mineral grains, but small amounts of hot fluids or partial melting may facilitate the metamorphic process.

Correct AnswerverifiedShow Answer

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.

Correct AnswerverifiedShow Answer

Which facies would you expect to find with high temperature-low pressure contact metamorphism?

Correct AnswerverifiedShow Answer

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.

Correct AnswerverifiedShow Answer

What type of stress (pressure)is illustrated in the diagram below?

Correct AnswerverifiedShow Answer

Give the name of a rock formed by regional metamorphism of a conglomerate.

Correct AnswerverifiedShow Answer

Which two metamorphic rocks are each composed predominantly of a single mineral?

Correct AnswerverifiedShow Answer

Amphibolite is a foliated metamorphic rock composed principally of hornblende and plagioclase.How does it form?

Correct AnswerverifiedShow Answer

The intensity and grade of ________ metamorphism is most intense where ________.

Correct AnswerverifiedShow Answer

Graphite is identified in a particular schist.Which one of the following conclusions is justified?

Correct AnswerverifiedShow Answer

________ is a nonfoliated rock formed by the contact metamorphism of fine grained rocks like shales, mudstones, or volcanics.

Correct AnswerverifiedShow Answer

Where would you expect to find chlorite and zeolites filling up voids and fractures in relatively undeformed rocks?

Correct AnswerverifiedShow Answer

In which setting would regional metamorphism most likely occur?

Correct AnswerverifiedShow Answer

What two index minerals characterize the eclogite facies?

Correct AnswerverifiedShow Answer

What medium grade regional metamorphic rock is produced from shale as the parent rock?

Correct AnswerverifiedShow Answer

Which rock forms by contact metamorphism of fine grained mudstones, shales, and volcanics?

Correct AnswerverifiedShow Answer

________ contain the oldest dated metamorphic rocks in Canada.

Correct AnswerverifiedShow Answer

What is another term for gneissic texture?

Correct AnswerverifiedShow Answer

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.

Correct AnswerverifiedShow Answer

In the formation of migmatites, which minerals start to melt first?

Correct AnswerverifiedShow Answer

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The intensity and grade of metamorphism is most intense where .

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