Question 1

Serpentinite is formed by:

Accepted Answer

A)  burial metamorphism of sandstone. 
B)  contact metamorphism of granite. 
C)  regional metamorphism of granite. 
D)  hydrothermal metamorphism of mantle rock. 
A)  burial metamorphism of sandstone. 
B)  contact metamorphism of granite. 
C)  regional metamorphism of granite. 
D)  hydrothermal metamorphism of mantle rock. D

Question 2

What generally accelerates the pace of chemical reactions?

Accepted Answer

A)  Heat. 
B)  Circulating fluids. 
C)  Pressure. 
D)  Faulting. 
A)  Heat. 
B)  Circulating fluids. 
C)  Pressure. 
D)  Faulting. A

Question 3

Metamorphism that results entirely from the heat of magma is:

Accepted Answer

A)  shock metamorphism. 
B)  dynamothermal metamorphism. 
C)  regional metamorphism. 
D)  contact metamorphism. 
A)  shock metamorphism. 
B)  dynamothermal metamorphism. 
C)  regional metamorphism. 
D)  contact metamorphism. D

Question 4

All of the following rock/formation temperature pairs are correct EXCEPT:

Accepted Answer

A) 	gneiss/ over 650°C. 
B)  slate/800°C. 
C)  phyllite/300°C. 
D)  schist/450°C. 
A) 	gneiss/ over 650°C. 
B)  slate/800°C. 
C)  phyllite/300°C. 
D)  schist/450°C.

Question 5

The ultimate mineralogy of a metamorphic rock is determined by:

Accepted Answer

A)  composition of the parent rock. 
B)  fluids. 
C)  heat. 
D)  pressure. 
A)  composition of the parent rock. 
B)  fluids. 
C)  heat. 
D)  pressure.

Question 6

Metamorphic rocks form through all of the following processes EXCEPT:

Accepted Answer

A)  compacting under tremendous pressure. 
B)  chemically changing under the influence of ion- containing fluids. 
C)  chemically changing under the influence of heat. 
D)  melting and recrystallizing. 
A)  compacting under tremendous pressure. 
B)  chemically changing under the influence of ion- containing fluids. 
C)  chemically changing under the influence of heat. 
D)  melting and recrystallizing.

Question 7

The primary difference between lithostatic pressure and directed pressure is:

Accepted Answer

A)  lithostatic pressure breaks many of the bonds in minerals, unlike directed pressure, which merely deforms existing crystals. 
B)  lithostatic pressure pushes in on rocks equally from all sides, while directed pressure acts in one principal plane. 
C)  lithostatic pressure, unlike directed pressure, is accompanied by high temperatures and significant amounts of circulating fluids. 
D)  lithostatic pressure is caused by the movement of rocks, while directed pressure is caused by the weight of rocks. 
A)  lithostatic pressure breaks many of the bonds in minerals, unlike directed pressure, which merely deforms existing crystals. 
B)  lithostatic pressure pushes in on rocks equally from all sides, while directed pressure acts in one principal plane. 
C)  lithostatic pressure, unlike directed pressure, is accompanied by high temperatures and significant amounts of circulating fluids. 
D)  lithostatic pressure is caused by the movement of rocks, while directed pressure is caused by the weight of rocks.

Question 8

The rock that results from the metamorphism of relatively pure limestone is:

Accepted Answer

A)  marble. 
B)  hornfels. 
C)  quartzite. 
D)  gneiss. 
A)  marble. 
B)  hornfels. 
C)  quartzite. 
D)  gneiss.

Question 9

The type of metamorphism that occurs when rocks are caught between two converging plates during mountain building is:

Accepted Answer

A)  shock metamorphism. 
B)  dynamothermal metamorphism. 
C)  burial metamorphism. 
D)  contact metamorphism. 
A)  shock metamorphism. 
B)  dynamothermal metamorphism. 
C)  burial metamorphism. 
D)  contact metamorphism.

Question 10

Blueschist rocks are formed:

Accepted Answer

A)  under the deepest parts of subduction zones, well below the roots of mountains. 
B)  around intruding igneous rocks such as batholiths. 
C)  within transform faults as a result of heat produced by friction. 
D)  within shallower parts of subduction zones. 
A)  under the deepest parts of subduction zones, well below the roots of mountains. 
B)  around intruding igneous rocks such as batholiths. 
C)  within transform faults as a result of heat produced by friction. 
D)  within shallower parts of subduction zones.

Question 11

Of the following, which is NOT a basis for classifying metamorphic rocks?

Accepted Answer

A)  Their appearance and the conditions under which they formed. 
B)  Whether their parent rock was igneous, sedimentary, or metamorphic. 
C)  Texture and composition. 
D)  The presence or absence of foliation. 
A)  Their appearance and the conditions under which they formed. 
B)  Whether their parent rock was igneous, sedimentary, or metamorphic. 
C)  Texture and composition. 
D)  The presence or absence of foliation.

Question 12

The technique of thermobarometry is used to determine what?

Accepted Answer

A)  Past temperatures and pressures. 
B)  The melting point of rocks. 
C)  The nature of the parent rock. 
D)  The type of metamorphism. 
A)  Past temperatures and pressures. 
B)  The melting point of rocks. 
C)  The nature of the parent rock. 
D)  The type of metamorphism.

Question 13

Most of the information we have about metamorphic processes is derived from:

Accepted Answer

A)  laboratory studies and theoretical models. 
B)  information gathered by probes placed deep within the Earth. 
C)  direct observation of metamorphic processes deep within the Earth. 
D)  direct observation of volcanic magma acting on surrounding rock. 
A)  laboratory studies and theoretical models. 
B)  information gathered by probes placed deep within the Earth. 
C)  direct observation of metamorphic processes deep within the Earth. 
D)  direct observation of volcanic magma acting on surrounding rock.

Question 14

Discuss the metamorphosis of igneous rocks.

Accepted Answer

Igneous rocks metamorphose into gneisses

Question 15

A metamorphic index mineral is:

Accepted Answer

A)  a mineral found only in gneiss. 
B)  a mineral that identifies the parent rock. 
C)  each new mineral that appears from low to high grade conditions. 
D)  a mineral formed only during contact metamorphism. 
A)  a mineral found only in gneiss. 
B)  a mineral that identifies the parent rock. 
C)  each new mineral that appears from low to high grade conditions. 
D)  a mineral formed only during contact metamorphism.

Question 16

Water often facilitates the metamorphism of which kind of rock?

Accepted Answer

A)  Rhyolite. 
B)  Granite. 
C)  Basalt. 
D)  Diorite. 
A)  Rhyolite. 
B)  Granite. 
C)  Basalt. 
D)  Diorite.

Question 17

The first criterion used to classify metamorphic rocks is:

Accepted Answer

A)  its mineral composition. 
B)  whether it is foliated or nonfoliated. 
C)  whether its parent rock was sedimentary, metamorphic, or igneous. 
D)  the metamorphic environment under which the rock was formed. 
A)  its mineral composition. 
B)  whether it is foliated or nonfoliated. 
C)  whether its parent rock was sedimentary, metamorphic, or igneous. 
D)  the metamorphic environment under which the rock was formed.

Question 18

The most important factor contributing to metamorphism is:

Accepted Answer

A)  confining pressure. 
B)  directed pressure. 
C)  heat. 
D)  fluids. 
A)  confining pressure. 
B)  directed pressure. 
C)  heat. 
D)  fluids.

Question 19

A rock that has partially melted and is thus part igneous and part metamorphic is a:

Accepted Answer

A)  migmatite. 
B)  phyllite. 
C)  gneiss. 
D)  schist. 
A)  migmatite. 
B)  phyllite. 
C)  gneiss. 
D)  schist.

Question 20

The term "foliation" in metamorphic rocks refers to:

Accepted Answer

A)  a quantitative measure of the degree of metamorphism. 
B)  folding of the rock by lateral pressure. 
C)  the inclusion of fossilized plant remains in the rock. 
D)  a consistent orientation of the mineral grains perpendicular to the direction of greatest pressure. 
A)  a quantitative measure of the degree of metamorphism. 
B)  folding of the rock by lateral pressure. 
C)  the inclusion of fossilized plant remains in the rock. 
D)  a consistent orientation of the mineral grains perpendicular to the direction of greatest pressure.

Serpentinite is formed by:

What generally accelerates the pace of chemical reactions?

Metamorphism that results entirely from the heat of magma is:

All of the following rock/formation temperature pairs are correct EXCEPT:

The ultimate mineralogy of a metamorphic rock is determined by:

Metamorphic rocks form through all of the following processes EXCEPT:

The primary difference between lithostatic pressure and directed pressure is:

The rock that results from the metamorphism of relatively pure limestone is:

The type of metamorphism that occurs when rocks are caught between two converging plates during mountain building is:

Blueschist rocks are formed:

Of the following, which is NOT a basis for classifying metamorphic rocks?

The technique of thermobarometry is used to determine what?

Most of the information we have about metamorphic processes is derived from:

Discuss the metamorphosis of igneous rocks.

A metamorphic index mineral is:

Water often facilitates the metamorphism of which kind of rock?

The first criterion used to classify metamorphic rocks is:

The most important factor contributing to metamorphism is:

A rock that has partially melted and is thus part igneous and part metamorphic is a:

The term "foliation" in metamorphic rocks refers to:

A First Look at Planet Earth - Its Origins, Systems, and Tectonic Plates

Minerals

Igneous Rocks and Processes

Volcanoes and Volcanism

Weathering - the Breakdown of Rocks

Sedimentary Processes, Environments, and Rocks

Telling Time Geologically

Earth Structures - Folds, Faults, and Fabrics

Earthquakes

The Earths Interior - Whats Going on Down There

Plate Tectonics and the Formation of the Earths Oceans

Continental Tectonics and the Formation of the Earths Continents

Mass Movement

Streams and Floods

Groundwater

Glaciers and Ice Ages

Deserts and the Work of Winds

Shores and Coastal Processes

Human Use of the Earths Resources Appendices Glossary

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Exam 7: Metamorphism and Metamorphic Rocks

Serpentinite is formed by:

What generally accelerates the pace of chemical reactions?

Metamorphism that results entirely from the heat of magma is:

All of the following rock/formation temperature pairs are correct EXCEPT:

The ultimate mineralogy of a metamorphic rock is determined by:

Metamorphic rocks form through all of the following processes EXCEPT:

The primary difference between lithostatic pressure and directed pressure is:

The rock that results from the metamorphism of relatively pure limestone is:

The type of metamorphism that occurs when rocks are caught between two converging plates during mountain building is:

Blueschist rocks are formed:

Of the following, which is NOT a basis for classifying metamorphic rocks?

The technique of thermobarometry is used to determine what?

Most of the information we have about metamorphic processes is derived from:

Discuss the metamorphosis of igneous rocks.

A metamorphic index mineral is:

Water often facilitates the metamorphism of which kind of rock?

The first criterion used to classify metamorphic rocks is:

The most important factor contributing to metamorphism is:

A rock that has partially melted and is thus part igneous and part metamorphic is a:

The term "foliation" in metamorphic rocks refers to:

A First Look at Planet Earth - Its Origins, Systems, and Tectonic Plates

Minerals

Igneous Rocks and Processes

Volcanoes and Volcanism

Weathering - the Breakdown of Rocks

Sedimentary Processes, Environments, and Rocks

Telling Time Geologically

Earth Structures - Folds, Faults, and Fabrics

Earthquakes

The Earths Interior - Whats Going on Down There

Plate Tectonics and the Formation of the Earths Oceans

Continental Tectonics and the Formation of the Earths Continents

Mass Movement

Streams and Floods

Groundwater

Glaciers and Ice Ages

Deserts and the Work of Winds

Shores and Coastal Processes

Human Use of the Earths Resources Appendices Glossary

Filters