Question 1

In what direction were the rocks in the center of this cross section shortened?

Accepted Answer

A)   in a vertical direction
B)   in a horizontal direction
C)   they were not shortened, they were pulled apart
D)   there is no way to tellE) A) and D)
F) A) and B)

Question 2

In what environments does low pressure/high temperature metamorphism occur?

Accepted Answer

A)   near magma but at shallow levels
B)   near magma but at deep levels
C)   under normal conditions of burial and heating
D)   in a subduction zone or accretionary prism
E)   none of theseF) C) and D)
G) B) and E)

Question 3

What types of features are shown in this photograph of unmetamorphosed sedimentary rocks?

Accepted Answer

A)   erosion of very tightly folded gneiss
B)   erosion along joints
C)   erosion of strong and weak layers
D)   erosion of a series of fault scarpsE) A) and C)
F) A) and D)

Question 4

What type of stress could form the fault in this figure?

Accepted Answer

A)   confining pressure
B)   horizontal tension
C)   vertical tension
D)   horizontal compression
E)   any of theseF) A) and E)
G) A) and B)

Question 5

Why could the geologic setting in this figure cause metamorphism?

Accepted Answer

A)   because it forces some rocks deeper as they are overridden by rocks above the fault
B)   it would only cause metamorphism very near the surface
C)   it would only cause metamorphism where the fault intersects the surface
D)   it cannot cause metamorphism
E)   none of theseF) None of the above
G) B) and E)

Question 6

What type of structure is shown in this figure?

Accepted Answer

A)   thrust fault
B)   anticline
C)   syncline
D)   monocline
E)   basinF) B) and E)
G) All of the above

Question 7

What kind of structure is shown in this image?

Accepted Answer

A)   monocline
B)   strike-slip fault
C)   asymmetric fold
D)   subduction zoneE) C) and D)
F) B) and C)

Question 8

What type of rock forms through solid-state alteration of a previously existing rock, by heating, pressure, and/or fluid chemistry?

Accepted Answer

A)   metamorphic
B)   igneous
C)   precipitates
D)   alternativeE) A) and B)
F) None of the above

Question 9

What type of deformation is shown in this photograph?

Accepted Answer

A)   displacement
B)   rotation
C)   internal strain of the rock
D)   columnar jointsE) B) and D)
F) All of the above

Question 10

What features are shown in this photograph of unmetamorphosed sandstone?

Accepted Answer

A)   faults
B)   folds
C)   cleavage
D)   foliation
E)   jointsF) None of the above
G) A) and E)

Question 11

Which of the following are true for horsts and grabens?

Accepted Answer

A)   A horst is a block that is uplifted relative to blocks on either side.
B)   A graben is a block that is dropped down relative to blocks on either side.
C)   May form associated with multiple normal faults.
D)   These are all true of horsts and grabens.E) C) and D)
F) A) and C)

Question 12

What type of tectonic event formed the main structures in the Valley and Ridge Province of the Appalachian Mountains?

Accepted Answer

A)   rifting and stretching of the continental crust
B)   rifting and thickening of the continental crust
C)   melting associated with an ocean-continent convergent margin
D)   a continental collisionE) None of the above
F) B) and C)

Question 13

Which of the following is most likely to occur at shallow crustal levels?

Accepted Answer

A)   ductile behavior
B)   brittle deformation
C)   growth of new minerals
D)   recrystallization of minerals
E)   metamorphismF) B) and C)
G) A) and D)

Question 14

This hard rock contains sand-sized grains of quartz. Fractures cut across, not around the sand grains. What is the correct name for this rock?

Accepted Answer

A)   schist
B)   slate
C)   gneiss
D)   quartziteE) B) and D)
F) All of the above

Question 15

Which of the following characterizes mid-ocean ridges?

Accepted Answer

A)   contact metamorphism near magma chambers
B)   normal faults
C)   tension
D)   metamorphism associated with hot seawater
E)   all of theseF) C) and E)
G) A) and E)

Question 16

The special geologic terms used to represent the direction of a horizontal line on an inclined surface like in a fault)  and the angle of that surface to the horizontal are:

Accepted Answer

A)   strike and dip
B)   fracture and joint
C)   footwall and hanging wall
D)   horst and grabenE) A) and D)
F) A) and C)

Question 17

What type of fault is shown in this figure?

Accepted Answer

A)   dip-slip fault
B)   normal fault
C)   strike-slip fault
D)   reverse faultE) A) and B)
F) A) and C)

Question 18

What type of stress formed the structure shown in this figure?

Accepted Answer

A)   compression
B)   tension
C)   shear
D)   none of these because no fracture was formedE) All of the above
F) A) and C)

Question 19

High fluid pressure in a rock body will:

Accepted Answer

A)   act to decrease the confining pressure
B)   cause an increase in confining pressure
C)   tend to increase the differential stress
D)   keep a rock from being deformed in any situationE) A) and B)
F) A) and C)

Question 20

What is the difference between a joint and a fault?

Accepted Answer

A)   a joint is formed by confining pressure
B)   a joint is formed by differential stress but a fault is not
C)   a fault is formed by tension but a joint is formed by compression
D)   a fault displaces the rocks on one side relative to anotherE) B) and D)
F) C) and D)

Exam 8: Deformation and Metamorphism

What type of stress formed the structure shown in this figure?

Correct AnswerverifiedShow Answer

What type of rock forms through solid-state alteration of a previously existing rock, by heating, pressure, and/or fluid chemistry?

Correct AnswerverifiedShow Answer

What is the difference between a joint and a fault?

Correct AnswerverifiedShow Answer

What kind of structure is shown in this image?

Correct AnswerverifiedShow Answer

Which of the following characterizes mid-ocean ridges?

Correct AnswerverifiedShow Answer

Which of the following is most likely to occur at shallow crustal levels?

Correct AnswerverifiedShow Answer

Which of the following are true for horsts and grabens?

Correct AnswerverifiedShow Answer

What type of deformation is shown in this photograph?

Correct AnswerverifiedShow Answer

What types of features are shown in this photograph of unmetamorphosed sedimentary rocks?

Correct AnswerverifiedShow Answer

This hard rock contains sand-sized grains of quartz. Fractures cut across, not around the sand grains. What is the correct name for this rock?

Correct AnswerverifiedShow Answer

What type of tectonic event formed the main structures in the Valley and Ridge Province of the Appalachian Mountains?

Correct AnswerverifiedShow Answer

What type of fault is shown in this figure?

Correct AnswerverifiedShow Answer

In what direction were the rocks in the center of this cross section shortened?

Correct AnswerverifiedShow Answer

Why could the geologic setting in this figure cause metamorphism?

Correct AnswerverifiedShow Answer

What type of structure is shown in this figure?

Correct AnswerverifiedShow Answer

High fluid pressure in a rock body will:

Correct AnswerverifiedShow Answer

The special geologic terms used to represent the direction of a horizontal line on an inclined surface like in a fault) and the angle of that surface to the horizontal are:

Correct AnswerverifiedShow Answer

In what environments does low pressure/high temperature metamorphism occur?

Correct AnswerverifiedShow Answer

What features are shown in this photograph of unmetamorphosed sandstone?

Correct AnswerverifiedShow Answer

What type of stress could form the fault in this figure?

Correct AnswerverifiedShow Answer

What type of stress formed the structure shown in this figure? $What type of stress formed the structure shown in this figure? A) compression B) tension C) shear D) none of these because no fracture was formed$

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified