Question 1

The silicate mineral that is found in the greatest variety of igneous rocks is ____________.

Accepted Answer

A) olivine 
B) plagioclase 
C) pyroxene 
D) quartz 
A) olivine 
B) plagioclase 
C) pyroxene 
D) quartz

Question 2

Consult the figure below.A sill is a(n)____________.

Accepted Answer

A) sheet-like intrusion that lies parallel to surrounding layers of sedimentary rock 
B) cooled layer of lava 
C) intrusion formed within the magma chamber of a volcano 
D) sheet-like intrusion that cuts across preexisting layers 
A) sheet-like intrusion that lies parallel to surrounding layers of sedimentary rock 
B) cooled layer of lava 
C) intrusion formed within the magma chamber of a volcano 
D) sheet-like intrusion that cuts across preexisting layers

Question 3

Injecting hot fudge into ice cream is an appropriate analogy for which cause of magma melt?

Accepted Answer

A) Melting due to a decrease in pressure 
B) melting due to an addition of volatiles 
C) melting due to heat transfer from rising magma 
D) All of the above are correct. 
A) Melting due to a decrease in pressure 
B) melting due to an addition of volatiles 
C) melting due to heat transfer from rising magma 
D) All of the above are correct.

Question 4

As compared to aphanitic igneous rocks,phaneritic rocks are ____________.

Accepted Answer

A) coarser grained 
B) finer grained 
C) more mafic 
D) more felsic 
A) coarser grained 
B) finer grained 
C) more mafic 
D) more felsic

Question 5

When magma crystallizes,____________ are formed.

Accepted Answer

A) intrusive igneous rocks 
B) extrusive igneous rocks 
C) volatiles 
D) pyroclastic debris 
A) intrusive igneous rocks 
B) extrusive igneous rocks 
C) volatiles 
D) pyroclastic debris

Question 6

A continental volcanic arc occurs at ____________.

Accepted Answer

A) the Aleutian Islands of Alaska 
B) the Andes Mountains 
C) Hawaii 
D) Japan 
A) the Aleutian Islands of Alaska 
B) the Andes Mountains 
C) Hawaii 
D) Japan

Question 7

All of the Earth's internal heat was acquired very early in its history through meteoric impact and differentiation of the core.The Earth's interior loses heat to space but does not currently receive heat through any known process.

Accepted Answer

A) True 
 B)False

Question 8

Magma tends to _____________.

Accepted Answer

A) move upward,away from where it formed 
B) move downward,away from where it formed 
C) move laterally 
D) stay in one place 
A) move upward,away from where it formed 
B) move downward,away from where it formed 
C) move laterally 
D) stay in one place

Question 9

Bowen's continuous reaction series describes the crystallization behavior of a single mineral (with variable chemical composition),____________.

Accepted Answer

A) olivine 
B) plagioclase 
C) pyroxene 
D) quartz 
A) olivine 
B) plagioclase 
C) pyroxene 
D) quartz

Question 10

Stoping by magmas occurs when ____________.

Accepted Answer

A) pieces of surrounding country rock are broken off and assimilated 
B) the magma stops flowing and starts to solidify 
C) the magma becomes fully solidified to form intrusive rock 
D) the magma alters a thin rind of surrounding country rock 
A) pieces of surrounding country rock are broken off and assimilated 
B) the magma stops flowing and starts to solidify 
C) the magma becomes fully solidified to form intrusive rock 
D) the magma alters a thin rind of surrounding country rock

Question 11

When rock is partially melted,the chemistry of the melt is ____________.

Accepted Answer

A) more mafic than the original chemistry of the rock that was partially melted 
B) more felsic than the original chemistry of the rock that was partially melted 
C) identical to the original chemistry of the rock that was partially melted 
D) completely unpredictable (it could be more mafic or more felsic) 
A) more mafic than the original chemistry of the rock that was partially melted 
B) more felsic than the original chemistry of the rock that was partially melted 
C) identical to the original chemistry of the rock that was partially melted 
D) completely unpredictable (it could be more mafic or more felsic)

Question 12

Bombs,ash,and cinders are all examples of ____________.

Accepted Answer

A) intrusive igneous rocks 
B) hot spots 
C) volatiles 
D) pyroclastic debris 
A) intrusive igneous rocks 
B) hot spots 
C) volatiles 
D) pyroclastic debris

Question 13

All other factors being equal,intrusive rocks that form deep within Earth ____________ than intrusive rocks that cool near the surface.

Accepted Answer

A) are more felsic 
B) contain a smaller proportion of volatiles 
C) cool more slowly 
D) cool more rapidly 
A) are more felsic 
B) contain a smaller proportion of volatiles 
C) cool more slowly 
D) cool more rapidly

Question 14

A famous example of hot-spot volcanism occurs at ____________.

Accepted Answer

A) the Aleutian Islands of Alaska 
B) the Andes Mountains 
C) Hawaii 
D) Mt.St.Helens,Washington 
A) the Aleutian Islands of Alaska 
B) the Andes Mountains 
C) Hawaii 
D) Mt.St.Helens,Washington

Question 15

Consult the figure below.Large igneous provinces can cause ______________.

Accepted Answer

A) sea level rise 
B) climate change 
C) extinction 
D) All of the above are correct. 
A) sea level rise 
B) climate change 
C) extinction 
D) All of the above are correct.

The silicate mineral that is found in the greatest variety of igneous rocks is ____________.

Consult the figure below.A sill is a(n)____________.

Injecting hot fudge into ice cream is an appropriate analogy for which cause of magma melt?

As compared to aphanitic igneous rocks,phaneritic rocks are ____________.

When magma crystallizes,____________ are formed.

A continental volcanic arc occurs at ____________.

All of the Earth's internal heat was acquired very early in its history through meteoric impact and differentiation of the core.The Earth's interior loses heat to space but does not currently receive heat through any known process.

Magma tends to _____________.

Bowen's continuous reaction series describes the crystallization behavior of a single mineral (with variable chemical composition),____________.

Stoping by magmas occurs when ____________.

When rock is partially melted,the chemistry of the melt is ____________.

Bombs,ash,and cinders are all examples of ____________.

All other factors being equal,intrusive rocks that form deep within Earth ____________ than intrusive rocks that cool near the surface.

A famous example of hot-spot volcanism occurs at ____________.

Consult the figure below.Large igneous provinces can cause ______________.

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

Pages of Earths Past: Sedimentary Rocks

Metamorphism: A Process of Change

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

Filters

Exam 6: Up From the Inferno: Magma and Igneous Rock

The silicate mineral that is found in the greatest variety of igneous rocks is ____________.

Consult the figure below.A sill is a(n)____________.

Injecting hot fudge into ice cream is an appropriate analogy for which cause of magma melt?

As compared to aphanitic igneous rocks,phaneritic rocks are ____________.

When magma crystallizes,____________ are formed.

A continental volcanic arc occurs at ____________.

All of the Earth's internal heat was acquired very early in its history through meteoric impact and differentiation of the core.The Earth's interior loses heat to space but does not currently receive heat through any known process.

Magma tends to _____________.

Bowen's continuous reaction series describes the crystallization behavior of a single mineral (with variable chemical composition),____________.

Stoping by magmas occurs when ____________.

When rock is partially melted,the chemistry of the melt is ____________.

Bombs,ash,and cinders are all examples of ____________.

All other factors being equal,intrusive rocks that form deep within Earth ____________ than intrusive rocks that cool near the surface.

A famous example of hot-spot volcanism occurs at ____________.

Consult the figure below.Large igneous provinces can cause ______________.

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

Pages of Earths Past: Sedimentary Rocks

Metamorphism: A Process of Change

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

Filters