Question 1

Which of the following characteristics of metamorphic terrains inform geologists about the plate tectonic environment that led to that metamorphism?

Accepted Answer

A)  metamorphic facies 
B)  rock textures 
C)  pressure-temperature pathways 
D)  all of these 
A)  metamorphic facies 
B)  rock textures 
C)  pressure-temperature pathways 
D)  all of these D

Question 2

In a symmetrical syncline fold structure, the limbs of the fold dip

Accepted Answer

A)  away from each other. 
B)  toward each other. 
C)  in the same direction. 
A)  away from each other. 
B)  toward each other. 
C)  in the same direction. B

Question 3

-Based on the metamorphic map above, what mineral would not be present in the garnet zone?

Accepted Answer

A)  biotite 
B)  chlorite 
C)  garnet 
D)  staurolite 
A)  biotite 
B)  chlorite 
C)  garnet 
D)  staurolite D

Question 4

-Which pressure-temperature regime represents the greenschist facies?

Accepted Answer

A)  area C 
B)  area D 
C)  area E 
D)  area F 
A)  area C 
B)  area D 
C)  area E 
D)  area F

Question 5

Metamorphosed limestones and dolostones are called

Accepted Answer

A)  quartzites. 
B)  marbles. 
C)  schists. 
A)  quartzites. 
B)  marbles. 
C)  schists.

Question 6

The mineral assemblage albite-chlorite-epidote is formed from a parent rock of ___ that was metamorphosed under ___ facies conditions.

Accepted Answer

A)  shale, amphibolite 
B)  basalt, greenschist 
C)  limestone, eclogite 
A)  shale, amphibolite 
B)  basalt, greenschist 
C)  limestone, eclogite

Question 7

Which of the following rocks represents the lowest metamorphic grade?

Accepted Answer

A)  slate 
B)  schist 
C)  phyllite 
A)  slate 
B)  schist 
C)  phyllite

Question 8

-The structure shown in the diagram above is a ___________.

Accepted Answer

A)  horizontal, symmetric fold 
B)  plunging, symmetric fold 
C)  horizontal, asymmetric fold 
D)  plunging, asymmetric fold 
A)  horizontal, symmetric fold 
B)  plunging, symmetric fold 
C)  horizontal, asymmetric fold 
D)  plunging, asymmetric fold

Question 9

What is the name for a line on a geologic map that delineates where one metamorphic grade changes to another?

Accepted Answer

A)  contact 
B)  isotherm 
C)  isograd 
A)  contact 
B)  isotherm 
C)  isograd

Question 10

The style of deformation that occurs at deep levels in the Earth's crust is referred to as

Accepted Answer

A)  brittle 
B)  tensile 
C)  ductile 
A)  brittle 
B)  tensile 
C)  ductile

Question 11

What type of pressure-temperature pathway represents subduction zone metamorphism?

Accepted Answer

A)  high pressure and low temperature 
B)  high pressure and high temperature 
C)  low pressure and low temperature 
A)  high pressure and low temperature 
B)  high pressure and high temperature 
C)  low pressure and low temperature

Question 12

The angle at which a sedimentary bed is inclined from horizontal is called the

Accepted Answer

A)  dip 
B)  plunge 
C)  strike 
A)  dip 
B)  plunge 
C)  strike

Question 13

What type of fold forms in an area of intense deformation where one limb of the fold has been tilted beyond vertical?

Accepted Answer

A)  asymmetric fold 
B)  overturned fold 
C)  plunging fold 
A)  asymmetric fold 
B)  overturned fold 
C)  plunging fold

Question 14

Which metamorphic facies represents the lowest metamorphic pressures and temperatures in mafic rocks?

Accepted Answer

A)  hornfels 
B)  greenschist 
C)  zeolite 
A)  hornfels 
B)  greenschist 
C)  zeolite

Question 15

Units A, B, and C are sedimentary rocks; unit A is the oldest and unit C is the youngest. The sedimentary rocks are cut by a fault, indicated by the bold line. The fault dips 60° to the northwest as shown by the strike and dip symbol.
  
-Which way do the sedimentary layers dip?

Accepted Answer

A)  toward the east 
B)  toward the center 
C)  toward the west 
D)  toward the east and west 
A)  toward the east 
B)  toward the center 
C)  toward the west 
D)  toward the east and west

Question 16

Metamorphism at continent-continent collision zones reflects a greater geothermal gradient compared to subduction zone metamorphism.

Accepted Answer

A) True 
 B)False

Question 17

Plagioclase feldspar is found in metamorphosed

Accepted Answer

A)  shales. 
B)  basalts. 
C)  shales and basalts. 
A)  shales. 
B)  basalts. 
C)  shales and basalts.

Question 18

Which statement below regarding the metamorphism of rocks is false?

Accepted Answer

A)  During metamorphism the texture of a rock changes. 
B)  During metamorphism minerals crystallize from magma. 
C)  During metamorphism hydrothermal fluids can change rock chemistry. 
D)  During metamorphism the mineral composition of a rock can change. 
A)  During metamorphism the texture of a rock changes. 
B)  During metamorphism minerals crystallize from magma. 
C)  During metamorphism hydrothermal fluids can change rock chemistry. 
D)  During metamorphism the mineral composition of a rock can change.

Question 19

-Which pressure-temperature regime represents the eclogite facies?

Accepted Answer

A)  area A 
B)  area C 
C)  area E 
D)  area G 
A)  area A 
B)  area C 
C)  area E 
D)  area G

Question 20

What is the pressure on a rock at 15-km depth in the Earth's crust?

Accepted Answer

A)  approximately 4 times atmospheric pressure 
B)  approximately 40 times atmospheric pressure 
C)  approximately 400 times atmospheric pressure 
D)  approximately 4000 times atmospheric pressure 
A)  approximately 4 times atmospheric pressure 
B)  approximately 40 times atmospheric pressure 
C)  approximately 400 times atmospheric pressure 
D)  approximately 4000 times atmospheric pressure

Which of the following characteristics of metamorphic terrains inform geologists about the plate tectonic environment that led to that metamorphism?

In a symmetrical syncline fold structure, the limbs of the fold dip

-Based on the metamorphic map above, what mineral would not be present in the garnet zone?

-Which pressure-temperature regime represents the greenschist facies?

Metamorphosed limestones and dolostones are called

The mineral assemblage albite-chlorite-epidote is formed from a parent rock of _ that was metamorphosed under _ facies conditions.

Which of the following rocks represents the lowest metamorphic grade?

-The structure shown in the diagram above is a ___________.

What is the name for a line on a geologic map that delineates where one metamorphic grade changes to another?

The style of deformation that occurs at deep levels in the Earth's crust is referred to as

What type of pressure-temperature pathway represents subduction zone metamorphism?

The angle at which a sedimentary bed is inclined from horizontal is called the

What type of fold forms in an area of intense deformation where one limb of the fold has been tilted beyond vertical?

Which metamorphic facies represents the lowest metamorphic pressures and temperatures in mafic rocks?

Units A, B, and C are sedimentary rocks; unit A is the oldest and unit C is the youngest. The sedimentary rocks are cut by a fault, indicated by the bold line. The fault dips 60° to the northwest as shown by the strike and dip symbol. -Which way do the sedimentary layers dip?

Metamorphism at continent-continent collision zones reflects a greater geothermal gradient compared to subduction zone metamorphism.

Plagioclase feldspar is found in metamorphosed

Which statement below regarding the metamorphism of rocks is false?

-Which pressure-temperature regime represents the eclogite facies?

What is the pressure on a rock at 15-km depth in the Earth's crust?

Why We Study Earth

How We Study Earth

Plate Tectonics: The Unifying Theory of Geology

Earth Materials: Minerals and Rocks

Igneous Processes and Volcanism

Sedimentation: Rocks Formed by Surface Processes

Timing the Geologic Record

History of Earth

The Climate System and Glaciation

The Hydrologic Cycle and Groundwater

Shaping Earths Surface: Streams, Coastlines, and Wind

Earthquakes and Earth Structure

Human Impact on Earths Environment

Filters

Exam 7: Deformation and Metamorphism

Which of the following characteristics of metamorphic terrains inform geologists about the plate tectonic environment that led to that metamorphism?

In a symmetrical syncline fold structure, the limbs of the fold dip

-Based on the metamorphic map above, what mineral would not be present in the garnet zone?

-Which pressure-temperature regime represents the greenschist facies?

Metamorphosed limestones and dolostones are called

The mineral assemblage albite-chlorite-epidote is formed from a parent rock of ___ that was metamorphosed under ___ facies conditions.

Which of the following rocks represents the lowest metamorphic grade?

-The structure shown in the diagram above is a ___________.

What is the name for a line on a geologic map that delineates where one metamorphic grade changes to another?

The style of deformation that occurs at deep levels in the Earth's crust is referred to as

What type of pressure-temperature pathway represents subduction zone metamorphism?

The angle at which a sedimentary bed is inclined from horizontal is called the

What type of fold forms in an area of intense deformation where one limb of the fold has been tilted beyond vertical?

Which metamorphic facies represents the lowest metamorphic pressures and temperatures in mafic rocks?

Units A, B, and C are sedimentary rocks; unit A is the oldest and unit C is the youngest. The sedimentary rocks are cut by a fault, indicated by the bold line. The fault dips 60° to the northwest as shown by the strike and dip symbol. -Which way do the sedimentary layers dip?

Metamorphism at continent-continent collision zones reflects a greater geothermal gradient compared to subduction zone metamorphism.

Plagioclase feldspar is found in metamorphosed

Which statement below regarding the metamorphism of rocks is false?

-Which pressure-temperature regime represents the eclogite facies?

What is the pressure on a rock at 15-km depth in the Earth's crust?

Why We Study Earth

How We Study Earth

Plate Tectonics: The Unifying Theory of Geology

Earth Materials: Minerals and Rocks

Igneous Processes and Volcanism

Sedimentation: Rocks Formed by Surface Processes

Timing the Geologic Record

History of Earth

The Climate System and Glaciation

The Hydrologic Cycle and Groundwater

Shaping Earths Surface: Streams, Coastlines, and Wind

Earthquakes and Earth Structure

Human Impact on Earths Environment

Filters

The mineral assemblage albite-chlorite-epidote is formed from a parent rock of _ that was metamorphosed under _ facies conditions.