Question 1

The protolith subjected to metamorphism ____________.

Accepted Answer

A)  is always metamorphic rock 
B)  is always igneous rock 
C)  is always sedimentary rock 
D)  may belong to any of the three primary rock types 
A)  is always metamorphic rock 
B)  is always igneous rock 
C)  is always sedimentary rock 
D)  may belong to any of the three primary rock types D

Question 2

Net chemical change in metamorphic rock induced by reaction with hot groundwater is termed ____________.

Accepted Answer

A)  foliation 
B)  metasomatism 
C)  anachronism 
A)  foliation 
B)  metasomatism 
C)  anachronism B

Question 3

If someone were to put a rock on the table in front of you,how might you determine that it was a metamorphic rock?

Accepted Answer

A)  by looking for one specific mineral that is formed during metamorphism 
B)  by examining its specific gravity 
C)  by examining it for minerals typically found in other rock types, such as quartz 
D)  by looking for distinctive arrangements of mineral grains not found in other rock types 
A)  by looking for one specific mineral that is formed during metamorphism 
B)  by examining its specific gravity 
C)  by examining it for minerals typically found in other rock types, such as quartz 
D)  by looking for distinctive arrangements of mineral grains not found in other rock types D

Question 4

Flattened-clast conglomerate would most likely be found ____________.

Accepted Answer

A)  in an aureole around a cooled igneous intrusion 
B)  at the eroding base of an ancient collisional mountain range 
C)  at a depth within the mid-ocean ridge system 
D)  within a meteorite impact crater 
A)  in an aureole around a cooled igneous intrusion 
B)  at the eroding base of an ancient collisional mountain range 
C)  at a depth within the mid-ocean ridge system 
D)  within a meteorite impact crater

Question 5

Which of the following is an adequate analogy for the pressure a metamorphic rock experiences?

Accepted Answer

A)  A pile of frosting is sheared with a side-to-side motion. 
B)  When a pile of frosting is pushed down on, it spreads out evenly. 
C)  An air-filled balloon swells as it experiences less pressure. 
D)  An air-filled balloon becomes much smaller at 10-m depth in a lake. 
A)  A pile of frosting is sheared with a side-to-side motion. 
B)  When a pile of frosting is pushed down on, it spreads out evenly. 
C)  An air-filled balloon swells as it experiences less pressure. 
D)  An air-filled balloon becomes much smaller at 10-m depth in a lake.

Question 6

Which list properly orders metamorphic rocks from lowest to highest grade?

Accepted Answer

A)  conglomerate, sandstone, siltstone, shale 
B)  shale, slate, phyllite, quartzite 
C)  slate, phyllite, schist, gneiss 
D)  gneiss, phyllite, schist, slate 
A)  conglomerate, sandstone, siltstone, shale 
B)  shale, slate, phyllite, quartzite 
C)  slate, phyllite, schist, gneiss 
D)  gneiss, phyllite, schist, slate

Question 7

A primary difference between phyllite and schist is that ____________.

Accepted Answer

A)  schist contains mica, whereas phyllite contains only clay 
B)  phyllite contains mica, whereas schist contains only clay 
C)  mica crystals within schist are larger than those within phyllite 
D)  mica crystals within phyllite are larger than those within schist 
A)  schist contains mica, whereas phyllite contains only clay 
B)  phyllite contains mica, whereas schist contains only clay 
C)  mica crystals within schist are larger than those within phyllite 
D)  mica crystals within phyllite are larger than those within schist

Question 8

Metamorphism may be induced by ____________.

Accepted Answer

A)  contact with a hot pluton 
B)  contact with hot groundwater 
C)  heat and pressure associated with deep burial 
D)  All of the above are correct. 
A)  contact with a hot pluton 
B)  contact with hot groundwater 
C)  heat and pressure associated with deep burial 
D)  All of the above are correct.

Question 9

Which of the following is part of the process that leads to the exhumation of metamorphic rocks?

Accepted Answer

A)  continents squeezing together 
B)  mountain belts collapsing 
C)  erosion 
D)  All of the above are correct. 
A)  continents squeezing together 
B)  mountain belts collapsing 
C)  erosion 
D)  All of the above are correct.

Question 10

Within a single mountain range,____________.

Accepted Answer

A)  only low-grade metamorphic rocks are likely to be found 
B)  only high-grade metamorphic rocks are likely to be found 
C)  it is possible to find a variety of metamorphic rocks produced in distinct facies, including high-, low-, and intermediate-grade rocks 
A)  only low-grade metamorphic rocks are likely to be found 
B)  only high-grade metamorphic rocks are likely to be found 
C)  it is possible to find a variety of metamorphic rocks produced in distinct facies, including high-, low-, and intermediate-grade rocks

Question 11

Clay minerals within a buried body of slate are recrystallized at high temperatures and pressures to form mica,producing a rock called phyllite; this is an example of ____________.

Accepted Answer

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

Question 12

Metamorphism brings changes in mineral arrangement and the texture of rocks,but it never leads to new mineral assemblages.

Accepted Answer

A) True 
 B)False

Question 13

Squashing a fly with a flyswatter is an application of ____________.

Accepted Answer

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

Question 14

All metamorphic rocks are formed within a fairly narrow range of temperature,approximately 400 to 600°C.

Accepted Answer

A) True 
 B)False

Question 15

Burial 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 16

Thermal (contact)metamorphism occurs ____________.

Accepted Answer

A)  in areas surrounding igneous intrusions 
B)  only where gneiss is in contact with schist 
C)  as a consequence of the sinking of a broad region to great depth 
D)  only at Earth's surface, where rock is in contact with the atmosphere 
A)  in areas surrounding igneous intrusions 
B)  only where gneiss is in contact with schist 
C)  as a consequence of the sinking of a broad region to great depth 
D)  only at Earth's surface, where rock is in contact with the atmosphere

Question 17

Which of the following processes CANNOT occur in the formation of metamorphic rock?

Accepted Answer

A)  realignment of minerals so that they develop a preferred orientation 
B)  segregation of minerals into layers of different compositions 
C)  solid-state rearrangement of atoms or ions to create a new assemblage of minerals 
D)  complete remelting of the rock, followed by solidification to form a new rock 
A)  realignment of minerals so that they develop a preferred orientation 
B)  segregation of minerals into layers of different compositions 
C)  solid-state rearrangement of atoms or ions to create a new assemblage of minerals 
D)  complete remelting of the rock, followed by solidification to form a new rock

Question 18

Thermal (contact)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 19

Why is dynamic metamorphism different from the other types of metamorphism?

Accepted Answer

A)  It only requires high temperatures. 
B)  It only requires high pressures. 
C)  It is the result of only compressional stress. 
D)  It is the result of only shear stress. 
A)  It only requires high temperatures. 
B)  It only requires high pressures. 
C)  It is the result of only compressional stress. 
D)  It is the result of only shear stress.

Question 20

____________ commonly serves as a protolith in the formation of phyllite.

Accepted Answer

A)  Limestone 
B)  Sandstone 
C)  Shale 
D)  Slate 
A)  Limestone 
B)  Sandstone 
C)  Shale 
D)  Slate

Exam 7: Metamorphism: a Process of Change

The protolith subjected to metamorphism ____________.

Net chemical change in metamorphic rock induced by reaction with hot groundwater is termed ____________.

If someone were to put a rock on the table in front of you,how might you determine that it was a metamorphic rock?

Flattened-clast conglomerate would most likely be found ____________.

Which of the following is an adequate analogy for the pressure a metamorphic rock experiences?

Which list properly orders metamorphic rocks from lowest to highest grade?

A primary difference between phyllite and schist is that ____________.

Metamorphism may be induced by ____________.

Which of the following is part of the process that leads to the exhumation of metamorphic rocks?

Within a single mountain range,____________.

Clay minerals within a buried body of slate are recrystallized at high temperatures and pressures to form mica,producing a rock called phyllite; this is an example of ____________.

Metamorphism brings changes in mineral arrangement and the texture of rocks,but it never leads to new mineral assemblages.

Squashing a fly with a flyswatter is an application of ____________.

All metamorphic rocks are formed within a fairly narrow range of temperature,approximately 400 to 600°C.

Burial metamorphism produces ____________.

Thermal (contact)metamorphism occurs ____________.

Which of the following processes CANNOT occur in the formation of metamorphic rock?

Thermal (contact)metamorphism produces ____________.

Why is dynamic metamorphism different from the other types of metamorphism?

____________ commonly serves as a protolith in the formation of phyllite.

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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