Question 1

Rocks and minerals are most stable when they:

Accepted Answer

A)  are surrounded by fluids. 
B)  are at temperatures comparable to those of the Earth's surface. 
C)  are in the environment in which they formed. 
D)  are over 1 million years old. 
A)  are surrounded by fluids. 
B)  are at temperatures comparable to those of the Earth's surface. 
C)  are in the environment in which they formed. 
D)  are over 1 million years old.

Question 2

The rock that results from the metamorphism of granite is:

Accepted Answer

A)  blueschist. 
B)  greenschist. 
C)  greenstone. 
D)  gneiss. 
A)  blueschist. 
B)  greenschist. 
C)  greenstone. 
D)  gneiss.

Question 3

Why is asbestos so dangerous?

Accepted Answer

Asbestos is a group of minerals such as

Question 4

In metamorphic rocks, foliation is caused by:

Accepted Answer

A)  heat. 
B)  circulating fluids. 
C)  lithostatic pressure. 
D)  directed pressure. 
A)  heat. 
B)  circulating fluids. 
C)  lithostatic pressure. 
D)  directed pressure.

Question 5

Water facilitates metamorphic reactions by:

Accepted Answer

A)  aiding movement of atoms and ions. 
B)  expanding fractures in the mineral surface. 
C)  adding heat to the reaction. 
D)  removing heat from the reaction. 
A)  aiding movement of atoms and ions. 
B)  expanding fractures in the mineral surface. 
C)  adding heat to the reaction. 
D)  removing heat from the reaction.

Question 6

Metamorphic rocks are often well exposed in:

Accepted Answer

A)  deep sea trenches. 
B)  the craters of active volcanoes. 
C)  the ocean basins. 
D)  mountain belts. 
A)  deep sea trenches. 
B)  the craters of active volcanoes. 
C)  the ocean basins. 
D)  mountain belts.

Question 7

Continental crust is composed mostly of rocks formed by:

Accepted Answer

A)  Fault- zone metamorphism. 
B)  Regional metamorphism. 
C)  Contact metamorphism. 
D)  Burial metamorphism. 
A)  Fault- zone metamorphism. 
B)  Regional metamorphism. 
C)  Contact metamorphism. 
D)  Burial metamorphism.

Question 8

Describe the process of metamorphic differentiation by which gneiss develops its banding.

Accepted Answer

During metamorphism, unstable felsic min

Question 9

The term "metamorphic grade" refers to:

Accepted Answer

A)  the severity of metamorphic conditions on the parent rock. 
B)  the economic value of the minerals found in a metamorphic rock. 
C)  the number of distinct mineral zones, or aureoles, found in a body of metamorphic rock. 
D)  the angle or slope of a body of metamorphic rocks. 
A)  the severity of metamorphic conditions on the parent rock. 
B)  the economic value of the minerals found in a metamorphic rock. 
C)  the number of distinct mineral zones, or aureoles, found in a body of metamorphic rock. 
D)  the angle or slope of a body of metamorphic rocks.

Question 10

Metamorphism of quartz sandstone produces:

Accepted Answer

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

Question 11

What are the functional differences between lithostatic pressure and directed pressure?

Accepted Answer

Lithostatic or confining pressure pushes

Question 12

The average geothermal gradient is approximately:

Accepted Answer

A) 	10°—20°C per kilometer. 
B)   40°—50°C per kilometer. 
C)   20°—30°C per kilometer. 
D)   30°—40°C per kilometer. 
A) 	10°—20°C per kilometer. 
B)   40°—50°C per kilometer. 
C)   20°—30°C per kilometer. 
D)   30°—40°C per kilometer.

Question 13

What is meant by the geothermal gradient? How does it apply to the processes of metamorphism?

Accepted Answer

The term "geothermal gradient" refers to

Question 14

Which type of asbestos mineral is most commonly used for commercial purposes?

Accepted Answer

A)  Serpentine ("white") asbestos. 
B)  Tremolite asbestos. 
C)  Chrysotile asbestos. 
D)  Amphibole asbestos. 
A)  Serpentine ("white") asbestos. 
B)  Tremolite asbestos. 
C)  Chrysotile asbestos. 
D)  Amphibole asbestos.

Question 15

The foliated rock that results from the metamorphism of basalt is:

Accepted Answer

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

Question 16

What is the main effect of lithostatic pressure?

Accepted Answer

A)  Change in shape and size. 
B)  Change in shape. 
C)  No change in shape just compression. 
D)  Foliation develops. 
A)  Change in shape and size. 
B)  Change in shape. 
C)  No change in shape just compression. 
D)  Foliation develops.

Question 17

Which metamorphic rock is often used by sculptors?

Accepted Answer

A)  Marble. 
B)  Schist. 
C)  Quartzite. 
D)  Gneiss. 
A)  Marble. 
B)  Schist. 
C)  Quartzite. 
D)  Gneiss.

Question 18

Burial metamorphism involves processes of:

Accepted Answer

A)  heat and circulating fluids. 
B)  low heat and very high pressure. 
C)  heat and confining pressure. 
D)  heat and directed pressure. 
A)  heat and circulating fluids. 
B)  low heat and very high pressure. 
C)  heat and confining pressure. 
D)  heat and directed pressure.

Question 19

All of the following areas were profoundly altered by regional metamorphism EXCEPT:

Accepted Answer

A)  Alaska. 
B)  Appalachians of eastern United States. 
C)  Gulf coast of Louisiana. 
D)  central Canada. 
A)  Alaska. 
B)  Appalachians of eastern United States. 
C)  Gulf coast of Louisiana. 
D)  central Canada.

Question 20

What type of metamorphism is indicated by the presence of serpentinization, or the minerals stishovite and coesite? How are each of these constitutive elements formed?

Accepted Answer

Serpentinization occurs as a result of h

Rocks and minerals are most stable when they:

The rock that results from the metamorphism of granite is:

Why is asbestos so dangerous?

In metamorphic rocks, foliation is caused by:

Water facilitates metamorphic reactions by:

Metamorphic rocks are often well exposed in:

Continental crust is composed mostly of rocks formed by:

Describe the process of metamorphic differentiation by which gneiss develops its banding.

The term "metamorphic grade" refers to:

Metamorphism of quartz sandstone produces:

What are the functional differences between lithostatic pressure and directed pressure?

The average geothermal gradient is approximately:

What is meant by the geothermal gradient? How does it apply to the processes of metamorphism?

Which type of asbestos mineral is most commonly used for commercial purposes?

The foliated rock that results from the metamorphism of basalt is:

What is the main effect of lithostatic pressure?

Which metamorphic rock is often used by sculptors?

Burial metamorphism involves processes of:

All of the following areas were profoundly altered by regional metamorphism EXCEPT:

What type of metamorphism is indicated by the presence of serpentinization, or the minerals stishovite and coesite? How are each of these constitutive elements formed?

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

Exam 7: Metamorphism and Metamorphic Rocks

Rocks and minerals are most stable when they:

The rock that results from the metamorphism of granite is:

Why is asbestos so dangerous?

In metamorphic rocks, foliation is caused by:

Water facilitates metamorphic reactions by:

Metamorphic rocks are often well exposed in:

Continental crust is composed mostly of rocks formed by:

Describe the process of metamorphic differentiation by which gneiss develops its banding.

The term "metamorphic grade" refers to:

Metamorphism of quartz sandstone produces:

What are the functional differences between lithostatic pressure and directed pressure?

The average geothermal gradient is approximately:

What is meant by the geothermal gradient? How does it apply to the processes of metamorphism?

Which type of asbestos mineral is most commonly used for commercial purposes?

The foliated rock that results from the metamorphism of basalt is:

What is the main effect of lithostatic pressure?

Which metamorphic rock is often used by sculptors?

Burial metamorphism involves processes of:

All of the following areas were profoundly altered by regional metamorphism EXCEPT:

What type of metamorphism is indicated by the presence of serpentinization, or the minerals stishovite and coesite? How are each of these constitutive elements formed?

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