Question 1

The protolith subjected to metamorphism ____________.

Accepted Answer

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

Question 2

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 D

Question 3

The mineral assemblage within metamorphic rock is ____________.

Accepted Answer

A) always identical to that found within the protolith 
B) dependent only on the mineral assemblage of the protolith 
C) dependent only on the temperature and pressure of formation 
D) dependent on both the mineral content of the protolith and the temperature and pressure of formation 
A) always identical to that found within the protolith 
B) dependent only on the mineral assemblage of the protolith 
C) dependent only on the temperature and pressure of formation 
D) dependent on both the mineral content of the protolith and the temperature and pressure of formation D

Question 4

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 5

In the formation of gneiss from granite,the distinctive compositional bands form due to ____________.

Accepted Answer

A) crystals migrating within the rock 
B) crystals dissolving,and atoms and ions migrating and reorganizing as new crystals 
C) crystals melting,with new crystals solidifying in color bands 
D) the bizarre and seemingly unknowable nature of the blueschist metamorphic facies 
A) crystals migrating within the rock 
B) crystals dissolving,and atoms and ions migrating and reorganizing as new crystals 
C) crystals melting,with new crystals solidifying in color bands 
D) the bizarre and seemingly unknowable nature of the blueschist metamorphic facies

Question 6

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

Accepted Answer

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

Question 7

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 8

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 9

Consult the figure below.As compared to the amphibolite metamorphic facies,the greenschist facies ____________.

Accepted Answer

A) consist of lower-grade rocks 
B) consist of higher-grade rocks 
C) is an identical temperature and pressure regime;greenschists and amphibolites bear different mineral assemblages only because of differences in protolith chemistry 
A) consist of lower-grade rocks 
B) consist of higher-grade rocks 
C) is an identical temperature and pressure regime;greenschists and amphibolites bear different mineral assemblages only because of differences in protolith chemistry

Question 10

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 11

Slaty cleavage,schistosity,and compositional banding are all examples of ____________.

Accepted Answer

A) mineral cleavage 
B) foliation 
C) recrystallization 
D) sedimentary structures 
A) mineral cleavage 
B) foliation 
C) recrystallization 
D) sedimentary structures

Question 12

Gneiss typically forms under higher pressures than hornfels.

Accepted Answer

A) True 
 B)False

Question 13

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 14

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 15

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

Question 16

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 17

The process of high-grade metamorphic rocks being altered to form low-grade metamorphic rocks is termed ____________ metamorphism.

Accepted Answer

A) foliated 
B) prograde 
C) retrograde 
D) dynamic 
A) foliated 
B) prograde 
C) retrograde 
D) dynamic

Question 18

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 19

A body of gneiss is subjected to heat and forms a melt.Later the melt cools and crystallizes to form a(n)____________.

Accepted Answer

A) metamorphic rock 
B) igneous rock 
C) sedimentary rock 
A) metamorphic rock 
B) igneous rock 
C) sedimentary rock

Question 20

Consult the figure below.The region of thermally metamorphosed rock surrounding a cooled pluton is called a(n)____________.

Accepted Answer

A) shear zone 
B) aureole 
C) oriole 
D) oleo 
A) shear zone 
B) aureole 
C) oriole 
D) oleo

Exam 8: Metamorphism: A Process of Change

The protolith subjected to metamorphism ____________.

The blueschist facies is a metamorphic realm of ____________.

The mineral assemblage within metamorphic rock is ____________.

Within a single mountain range,____________.

In the formation of gneiss from granite,the distinctive compositional bands form due to ____________.

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

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

Flattened-clast conglomerate would most likely be found ____________.

Consult the figure below.As compared to the amphibolite metamorphic facies,the greenschist facies ____________.

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

Slaty cleavage,schistosity,and compositional banding are all examples of ____________.

Gneiss typically forms under higher pressures than hornfels.

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 may be induced by ____________.

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

Regional metamorphism ____________.

The process of high-grade metamorphic rocks being altered to form low-grade metamorphic rocks is termed ____________ metamorphism.

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

A body of gneiss is subjected to heat and forms a melt.Later the melt cools and crystallizes to form a(n)____________.

Consult the figure below.The region of thermally metamorphosed rock surrounding a cooled pluton is called a(n)____________.

Cosmology and the Birth of Earth

Journey to the Center of the Earth

Drifting Continents and Spreading Seas

The Way the Earth Works: Plate Tectonics

Patterns in Nature: Minerals

Up From the Inferno: Magma and Igneous Rock

Pages of Earths Past: Sedimentary Rocks

The Wrath of Vulcan: Volcanic Eruptions

A Violent Pulse: Earthquakes

Cracks, crags, and Crumples: Crustal Deformation and Mountain Building

Deep Time: How Old Is Old

A Biography of Earth

Squeezing Power From a Stone: Energy Resources

Riches in Rock: 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

An Envelope of Gas: Earths Atmosphere and Climate

Dry Settings: the Geology of Deserts

Amazing Ice: Glaciers and Ice Ages

Global Change in the Earth System

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