Question 1

Which type of metamorphism affects the greatest volumes of rock?

Accepted Answer

A)  thermal metamorphism 
B)  dynamothermal metamorphism 
C)  dynamic metamorphism 
A)  thermal metamorphism 
B)  dynamothermal metamorphism 
C)  dynamic metamorphism

Question 2

Mylonites,formed from dynamic metamorphism,typically display ___________.

Accepted Answer

A)  foliation roughly parallel to a fault 
B)  very fine grains 
C)  shear zones 
D)  All of the above are correct. 
A)  foliation roughly parallel to a fault 
B)  very fine grains 
C)  shear zones 
D)  All of the above are correct.

Question 3

Meteorite impacts have been known to induce metamorphism of sediments and rocks.

Accepted Answer

A) True 
 B)False

Question 4

Consult the figure below.Hot water reacting with crustal rock is the basis for what type of metamorphism?

Accepted Answer

A)  contact 
B)  hydrothermal 
C)  regional 
D)  shock 
A)  contact 
B)  hydrothermal 
C)  regional 
D)  shock

Question 5

Differential stress will cause crystals to align in a preferred orientation unless the crystals are ____________.

Accepted Answer

A)  primarily mica 
B)  platy 
C)  equant 
D)  elongate 
A)  primarily mica 
B)  platy 
C)  equant 
D)  elongate

Question 6

Precambrian metamorphic rocks are exposed at the surface ____________.

Accepted Answer

A)  on Mars and Venus, but nowhere on Earth 
B)  at places in continental interiors termed platforms 
C)  at places in continental interiors termed shields 
D)  at the bottom of the deep sea 
A)  on Mars and Venus, but nowhere on Earth 
B)  at places in continental interiors termed platforms 
C)  at places in continental interiors termed shields 
D)  at the bottom of the deep sea

Question 7

Gneiss typically forms under higher pressures than hornfels.

Accepted Answer

A) True 
 B)False

Question 8

Why do sculptors love to work with marble?

Accepted Answer

A)  It comes only in a creamy white variety that is perfect for statues. 
B)  Its distinction between grains and cement produces an excellent texture. 
C)  Its interlocking halite crystals provide uniformity. 
D)  It is relatively soft. 
A)  It comes only in a creamy white variety that is perfect for statues. 
B)  Its distinction between grains and cement produces an excellent texture. 
C)  Its interlocking halite crystals provide uniformity. 
D)  It is relatively soft.

Question 9

The blueschist facies is a metamorphic realm of ____________.

Accepted Answer

A)  high temperature and pressure 
B)  low temperature and pressure 
C)  high temperature but relatively low pressure 
D)  high pressure but relatively low temperature 
A)  high temperature and pressure 
B)  low temperature and pressure 
C)  high temperature but relatively low pressure 
D)  high pressure but relatively low temperature

Question 10

Where should you look today to find metamorphic rocks that are currently exposed?

Accepted Answer

A)  subduction zones 
B)  the United States shield 
C)  mountain ranges 
D)  the Alaskan shield 
A)  subduction zones 
B)  the United States shield 
C)  mountain ranges 
D)  the Alaskan shield

Question 11

Dynamothermal (regional)metamorphism produces ____________.

Accepted Answer

A)  foliated rocks only 
B)  nonfoliated rocks only 
C)  both foliated and nonfoliated rocks 
A)  foliated rocks only 
B)  nonfoliated rocks only 
C)  both foliated and nonfoliated rocks

Question 12

Marble and quartzite are nonfoliated rocks because ____________.

Accepted Answer

A)  they are never found beneath fault zones or collisional mountain ranges 
B)  both are dominated by minerals that produce equant grains 
C)  both are dominated by minerals with crystalline structures that cannot be dissolved 
D)  dynamothermal metamorphism can break down the structures of their constituent minerals, but neither of these minerals is stable in that metamorphic environment 
A)  they are never found beneath fault zones or collisional mountain ranges 
B)  both are dominated by minerals that produce equant grains 
C)  both are dominated by minerals with crystalline structures that cannot be dissolved 
D)  dynamothermal metamorphism can break down the structures of their constituent minerals, but neither of these minerals is stable in that metamorphic environment

Question 13

Regional metamorphism ____________.

Accepted Answer

A)  takes place at cool temperatures and low pressure 
B)  takes place at cool temperatures but high pressure 
C)  is another name for thermal metamorphism 
D)  is another name for dynamothermal metamorphism 
A)  takes place at cool temperatures and low pressure 
B)  takes place at cool temperatures but high pressure 
C)  is another name for thermal metamorphism 
D)  is another name for dynamothermal metamorphism

Question 14

Which of the following is analogous to all of the metamorphic grades creating an aureole as one moves toward the source pluton?

Accepted Answer

A)  the transition from clay to porcelain 
B)  the transition from brick to pottery 
C)  the transition from porcelain to clay 
D)  the transition from pottery to brick 
A)  the transition from clay to porcelain 
B)  the transition from brick to pottery 
C)  the transition from porcelain to clay 
D)  the transition from pottery to brick

Question 15

Consult the figure below.Spreading peanut butter on bread is an application of ____________.

Accepted Answer

A)  normal stress 
B)  shear stress 
A)  normal stress 
B)  shear stress

Question 16

Dynamothermal (regional)metamorphism occurs when ____________.

Accepted Answer

A)  rock becomes buried deeply during continental collision and mountain building 
B)  regression of the sea leads to erosion of sedimentary cover atop a body of rock 
C)  the upper surface of a body of rock develops a thick soil profile 
D)  a pluton causes metamorphism in a small surrounding region 
A)  rock becomes buried deeply during continental collision and mountain building 
B)  regression of the sea leads to erosion of sedimentary cover atop a body of rock 
C)  the upper surface of a body of rock develops a thick soil profile 
D)  a pluton causes metamorphism in a small surrounding region

Question 17

At the Earth's surface,potassium feldspar reacts with water to form clay; this is an example of ____________.

Accepted Answer

A)  diagenesis 
B)  erosion 
C)  metamorphism 
D)  weathering 
A)  diagenesis 
B)  erosion 
C)  metamorphism 
D)  weathering

Question 18

What does the lack of foliation mean in a metamorphic rock?

Accepted Answer

A)  that the rock formed in an environment free of compression or shear 
B)  that most of the new crystals in the rock could only form in inequant form 
C)  that only high temperature was involved in the rock's creation 
D)  that both low temperature and pressure were involved in the rock's creation 
A)  that the rock formed in an environment free of compression or shear 
B)  that most of the new crystals in the rock could only form in inequant form 
C)  that only high temperature was involved in the rock's creation 
D)  that both low temperature and pressure were involved in the rock's creation

Question 19

Metamorphism,in broadest terms,involves ____________.

Accepted Answer

A)  the settling of crystals in a melt as it cools 
B)  the sorting of grains by size, as is accomplished by rivers and beach waves 
C)  cementation of loose grains and precipitation of new minerals into pore spaces 
D)  changes in mineralogy and texture in response to heat and stress 
A)  the settling of crystals in a melt as it cools 
B)  the sorting of grains by size, as is accomplished by rivers and beach waves 
C)  cementation of loose grains and precipitation of new minerals into pore spaces 
D)  changes in mineralogy and texture in response to heat and stress

Question 20

The development of a preferred orientation of large,flaky mica crystals within metamorphic rock is termed ____________.

Accepted Answer

A)  slaty cleavage 
B)  phyllitic luster 
C)  schistosity 
D)  compositional banding 
A)  slaty cleavage 
B)  phyllitic luster 
C)  schistosity 
D)  compositional banding

Exam 7: Metamorphism: a Process of Change

Which type of metamorphism affects the greatest volumes of rock?

Mylonites,formed from dynamic metamorphism,typically display ___________.

Meteorite impacts have been known to induce metamorphism of sediments and rocks.

Consult the figure below.Hot water reacting with crustal rock is the basis for what type of metamorphism?

Differential stress will cause crystals to align in a preferred orientation unless the crystals are ____________.

Precambrian metamorphic rocks are exposed at the surface ____________.

Gneiss typically forms under higher pressures than hornfels.

Why do sculptors love to work with marble?

The blueschist facies is a metamorphic realm of ____________.

Where should you look today to find metamorphic rocks that are currently exposed?

Dynamothermal (regional)metamorphism produces ____________.

Marble and quartzite are nonfoliated rocks because ____________.

Regional metamorphism ____________.

Which of the following is analogous to all of the metamorphic grades creating an aureole as one moves toward the source pluton?

Consult the figure below.Spreading peanut butter on bread is an application of ____________.

Dynamothermal (regional)metamorphism occurs when ____________.

At the Earth's surface,potassium feldspar reacts with water to form clay; this is an example of ____________.

What does the lack of foliation mean in a metamorphic rock?

Metamorphism,in broadest terms,involves ____________.

The development of a preferred orientation of large,flaky mica crystals within metamorphic rock is termed ____________.

The Earth in Context

The Way the Earth Works: Plate Tectonics

Patterns in Nature: Minerals

Up From the Inferno: Magma and Igneous Rocks

The Wrath of Vulcan: Volcanic Eruptions

Pages of Earths Past: Sedimentary Rocks

A Violent Pulse: Earthquakes

Crags, cracks, and Crumples: Crustal Deformation and Mountain Building

Deep Time: How Old Is Old

A Biography of Earth

Riches in Rock: Energy and Mineral Resources

Unsafe Ground: Landslides and Other Mass Movements

Streams and Floods: the Geology of Running Water

Restless Realm: Oceans and Coasts

A Hidden Reserve: Groundwater

Dry Regions: the Geology of Deserts

Amazing Ice: Glaciers and Ice Ages

Global Change in the Earth System

Rock Groups

A Surface Veneer: Sediments and Soils

The Rock Cycle

The Earths Interior Revisited: Insights From Geophysics

Memories of Past Life: Fossils and Evolution

An Introduction to Landscapes and the Hydrologic Cycle

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