Question 1

Folds are most often associated with _________ stress.

Accepted Answer

A)  tensional
B)  compressional
C)  shear
D)  straightE) All of the above
F) C) and D)

Question 2

Erosional processes work to remove material from mountains; thus, over time the topography will become less

Accepted Answer

A)  rugged.
B)  weathered.
C)  flat-lying
D)  stretched.E) None of the above
F) A) and D)

Question 3

Regions of continents that have NOT been subjected to mountain-building events during the past 1 billion years are termed

Accepted Answer

A)  exotic terranes.
B)  accreted terranes.
C)  cratons.
D)  cratonic platforms.E) A) and B)
F) A) and C)

Question 4

What are joints? What might the presence of joints in a rock indicate?

Accepted Answer

Answers will vary but should include at ...

Question 5

What types of geologic structures would you expect to find in an area that had undergone compression?

Accepted Answer

Answers will vary; however, st...

Question 6

The fossil in the image below has been subjected to what type of stress?

Accepted Answer

A)  brittle
B)  tensional
C)  shear
D)  compressionalE) A) and B)
F) None of the above

Question 7

Describe the differences between brittle and ductile deformation.

Accepted Answer

Brittle deformation occurs in rigid mate...

Question 8

The outer portion of a craton, where deformed rocks are covered by sediments, is termed the

Accepted Answer

A)  shield.
B)  cratonic platform.
C)  convergent margin.
D)  exotic terrane.E) A) and B)
F) B) and D)

Question 9

The distinction between joints and faults is that

Accepted Answer

A)  faults are joints that are greater than 1 square meter in areal extent.
B)  faults are fractures along which displacement has occurred; displacement does not occur along joints.
C)  joints are fractures along which displacement has occurred; displacement does not occur along faults.
D)  There is no distinction; the two terms are synonymous.E) A) and B)
F) All of the above

Question 10

How does the rate at which a body of rock is deformed affect its behavior?

Accepted Answer

A)  A rock deformed quickly is likely to exhibit brittle behavior.
B)  A rock deformed slowly is likely to exhibit brittle behavior.
C)  The rate of deformation has no effect on a rock's behavior.
D)  The rate of deformation is important only below the brittle/plastic transition.E) B) and D)
F) None of the above

Question 11

Normal faults are generally the result of _________ stress.

Accepted Answer

A)  tensional
B)  compressional
C)  shear
D)  triaxialE) C) and D)
F) B) and D)

Question 12

The Appalachian Mountains were formed as a result of the collision of North America and Africa at the end of the Paleozoic era. Describe what the Appalachians looked like when formed and what has caused them to become a series of gently sloping hills today.

Accepted Answer

The Appalachian Mountains prob...

Question 13

A body of rock affected by tension will likely undergo

Accepted Answer

A)  shortening.
B)  stretching.
C)  shear strain
D)  rotation.E) A) and B)
F) All of the above

Question 14

Tectonic foliation is most likely to occur as a result of

Accepted Answer

A)  metamorphism.
B)  faulting.
C)  brittle deformation.
D)  rotation.E) A) and D)
F) A) and C)

Question 15

Compare and contrast domes and basins. If both are composed solely of sedimentary beds that have been eroded such that the ground surface is level, how would you identify each?

Accepted Answer

Domes and basins are both types of folds...

Question 16

What are the three components of deformation? Briefly explain each.

Accepted Answer

The three components of deformation are ...

Question 17

How were the mountains in the Basin and Range Province formed?

Accepted Answer

The mountains in the Basin and Range Pro...

Question 18

Which of the following is the process whereby rocks from depth are exposed at the surface during mountain building?

Accepted Answer

A)   subsidence
B)   uplift
C)  jointing
D)  foliationE) C) and D)
F) B) and D)

Question 19

Metamorphic rocks found in cratons are exposed during orogenesis by

Accepted Answer

A)  faulting.
B)  folding.
C)  shields.
D)  erosion.E) B) and D)
F) A) and D)

Question 20

What do strike and dip describe?

Accepted Answer

A)  orientation of planar features
B)  degree of metamorphism
C)  depth of faulting
D)  location of a structureE) B) and C)
F) None of the above

Exam 7: Crags, Cracks, and Crumples: Crustal Deformation and Mountain Building

The outer portion of a craton, where deformed rocks are covered by sediments, is termed the

Correct AnswerverifiedShow Answer

Which of the following is the process whereby rocks from depth are exposed at the surface during mountain building?

Correct AnswerverifiedShow Answer

Folds are most often associated with _________ stress.

Correct AnswerverifiedShow Answer

The distinction between joints and faults is that

Correct AnswerverifiedShow Answer

Regions of continents that have NOT been subjected to mountain-building events during the past 1 billion years are termed

Correct AnswerverifiedShow Answer

A body of rock affected by tension will likely undergo

Correct AnswerverifiedShow Answer

Metamorphic rocks found in cratons are exposed during orogenesis by

Correct AnswerverifiedShow Answer

How were the mountains in the Basin and Range Province formed?

Correct AnswerverifiedThe mountains in the Basin and Range Pro...View AnswerShow Answer

Tectonic foliation is most likely to occur as a result of

Correct AnswerverifiedShow Answer

What do strike and dip describe?

Correct AnswerverifiedShow Answer

The Appalachian Mountains were formed as a result of the collision of North America and Africa at the end of the Paleozoic era. Describe what the Appalachians looked like when formed and what has caused them to become a series of gently sloping hills today.

Correct AnswerverifiedThe Appalachian Mountains prob...View AnswerShow Answer

What are joints? What might the presence of joints in a rock indicate?

Correct AnswerverifiedAnswers will vary but should include at ...View AnswerShow Answer

What are the three components of deformation? Briefly explain each.

Correct AnswerverifiedThe three components of deformation are ...View AnswerShow Answer

Describe the differences between brittle and ductile deformation.

Correct AnswerverifiedBrittle deformation occurs in rigid mate...View AnswerShow Answer

Normal faults are generally the result of _________ stress.

Correct AnswerverifiedShow Answer

Compare and contrast domes and basins. If both are composed solely of sedimentary beds that have been eroded such that the ground surface is level, how would you identify each?

Correct AnswerverifiedDomes and basins are both types of folds...View AnswerShow Answer

The fossil in the image below has been subjected to what type of stress?

Correct AnswerverifiedShow Answer

Erosional processes work to remove material from mountains; thus, over time the topography will become less

Correct AnswerverifiedShow Answer

What types of geologic structures would you expect to find in an area that had undergone compression?

Correct AnswerverifiedAnswers will vary; however, st...View AnswerShow Answer

How does the rate at which a body of rock is deformed affect its behavior?

Correct AnswerverifiedShow Answer

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The mountains in the Basin and Range Pro...
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The Appalachian Mountains prob...
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Answers will vary but should include at ...
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Correct Answer
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The three components of deformation are ...
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Brittle deformation occurs in rigid mate...
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Correct Answer
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Domes and basins are both types of folds...
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Correct Answer
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Answers will vary; however, st...
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Correct Answer
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