Question 1

A rock that has both igneous and metamorphic characteristics is called ____________________.

Accepted Answer

The answer of A rock that has both igneous and...

Question 2

Many ore deposits result from contact metamorphism during which hot, ion-rich fluids ____.

Accepted Answer

A) migrate from surrounding rock into igneous intrusions 
B) migrate from igneous intrusions into the surrounding rock 
C) melt the surrounding rock which precipitates the ore 
D) reach Earth's surface forming ore deposits as they move 
E) become electrically neutral and react chemically with the surrounding rock 
A) migrate from surrounding rock into igneous intrusions 
B) migrate from igneous intrusions into the surrounding rock 
C) melt the surrounding rock which precipitates the ore 
D) reach Earth's surface forming ore deposits as they move 
E) become electrically neutral and react chemically with the surrounding rock

Question 3

Differential pressure ____.

Accepted Answer

A) produces similar features to lithostatic pressure but is a much longer process 
B) is always rotational 
C) cannot occur at the same time as lithostatic pressure 
D) is less transformational than lithostatic pressure 
E) typically occurs when two plates collide 
A) produces similar features to lithostatic pressure but is a much longer process 
B) is always rotational 
C) cannot occur at the same time as lithostatic pressure 
D) is less transformational than lithostatic pressure 
E) typically occurs when two plates collide

Question 4

The minerals andalusite, sillimanite, and kyanite all have the chemical formula, Al2SiO5. Explain how three different minerals can have the same chemical components and why this fact is important.

Accepted Answer

Even thought andalusite, sillimanite, an

Question 5

The two most familiar and widely used metamorphic rocks are marble and slate.

Accepted Answer

A) True 
 B)False

Question 6

Minerals such as mica, quartz, and feldspar ____.

Accepted Answer

A) can occur only as igneous rocks 
B) can occur only as metamorphic rocks 
C) can occur as both igneous and metamorphic rocks 
D) are useful index minerals for metamorphic rocks that formed from clay-rich rocks 
E) all have the same chemical formula 
A) can occur only as igneous rocks 
B) can occur only as metamorphic rocks 
C) can occur as both igneous and metamorphic rocks 
D) are useful index minerals for metamorphic rocks that formed from clay-rich rocks 
E) all have the same chemical formula

Question 7

What two fluid molecules are common in the formation of metamorphic rock? How do they affect the rate of metamorphism and why?

Accepted Answer

In almost every region of metamorphism,

Question 8

Marble, quartzite, greenstone, hornfels, and anthracite are examples of ____________________ metamorphic rocks.

Accepted Answer

The answer of Marble, quartzite, greenstone, hornfels, and anthracite are...

Question 9

For purposes of classification, metamorphic rocks are commonly divided into two groups based on their texture: ____________________ and ____________________.

Accepted Answer

foliated,

Question 10

Which list of foliated rock types is arranged correctly according to increasing coarseness of texture?

Accepted Answer

A) slate, phyllite, gneiss, schist 
B) slate, amphibolite, schist, phyllite 
C) schist, phyllite, gneiss, slate 
D) slate, phyllite, schist, gneiss 
E) schist, phyllite, amphibolite, gneiss 
A) slate, phyllite, gneiss, schist 
B) slate, amphibolite, schist, phyllite 
C) schist, phyllite, gneiss, slate 
D) slate, phyllite, schist, gneiss 
E) schist, phyllite, amphibolite, gneiss

Question 11

Metamorphic rocks are very common in the crystalline basement rocks of shields.

Accepted Answer

A) True 
 B)False

Question 12

Intensity of regional metamorphism may be recognized by the index ____.

Accepted Answer

A) crystals 
B) fossils 
C) minerals 
D) ores 
E) rocks 
A) crystals 
B) fossils 
C) minerals 
D) ores 
E) rocks

Question 13

What is a metamorphic rock with more than 50% platy and elongated minerals, all of which are large enough to be clearly visible?

Accepted Answer

A) phyllite 
B) gneiss 
C) slate 
D) schist 
E) shale 
A) phyllite 
B) gneiss 
C) slate 
D) schist 
E) shale

Question 14

The concept of metamorphic facies ____.

Accepted Answer

A) cannot be used in areas where the original rocks were clay-rich 
B) cannot be used in areas where the original rocks were pure quartz sandstone 
C) was developed in Italy in the 1600s 
D) is not as useful as the concept of metamorphic zones 
E) relies on finding a single index mineral in a particular zone 
A) cannot be used in areas where the original rocks were clay-rich 
B) cannot be used in areas where the original rocks were pure quartz sandstone 
C) was developed in Italy in the 1600s 
D) is not as useful as the concept of metamorphic zones 
E) relies on finding a single index mineral in a particular zone

Question 15

Metamorphic rocks ____.

Accepted Answer

A) always have igneous parent rock 
B) always have sedimentary parent rock 
C) are the oldest rock on Earth 
D) are formed under conditions of high temperatures and pressures 
E) can form on Earth's surface under special conditions 
A) always have igneous parent rock 
B) always have sedimentary parent rock 
C) are the oldest rock on Earth 
D) are formed under conditions of high temperatures and pressures 
E) can form on Earth's surface under special conditions

Question 16

Contact metamorphism ____.

Accepted Answer

A) is principally the result of high differential pressures 
B) produces basalt and gabbro 
C) is associated with mountain-building episodes 
D) is also known as thermal metamorphism 
E) occurs within a large area 
A) is principally the result of high differential pressures 
B) produces basalt and gabbro 
C) is associated with mountain-building episodes 
D) is also known as thermal metamorphism 
E) occurs within a large area

Question 17

During metamorphism, the original rock undergoes changes ____.

Accepted Answer

A) that result in instability 
B) that soften the rock 
C) but its former identity is always easily recognizable 
D) to achieve equilibrium with its new environment 
E) and is always pushed deeper into Earth due to tremendous pressure 
A) that result in instability 
B) that soften the rock 
C) but its former identity is always easily recognizable 
D) to achieve equilibrium with its new environment 
E) and is always pushed deeper into Earth due to tremendous pressure

Question 18

Concentric zones surrounding an igneous intrusion in which contact metamorphism has taken place are called ____________________.

Accepted Answer

The answer of Concentric zones surrounding an igneous intrusion in...

Exam 8: Metamorphism and Metamorphic Rocks

A rock that has both igneous and metamorphic characteristics is called ____________________.

Many ore deposits result from contact metamorphism during which hot, ion-rich fluids ____.

Differential pressure ____.

The minerals andalusite, sillimanite, and kyanite all have the chemical formula, Al2SiO5. Explain how three different minerals can have the same chemical components and why this fact is important.

The two most familiar and widely used metamorphic rocks are marble and slate.

Minerals such as mica, quartz, and feldspar ____.

What two fluid molecules are common in the formation of metamorphic rock? How do they affect the rate of metamorphism and why?

Marble, quartzite, greenstone, hornfels, and anthracite are examples of ____________________ metamorphic rocks.

For purposes of classification, metamorphic rocks are commonly divided into two groups based on their texture: ____________________ and ____________________.

Which list of foliated rock types is arranged correctly according to increasing coarseness of texture?

Metamorphic rocks are very common in the crystalline basement rocks of shields.

Intensity of regional metamorphism may be recognized by the index ____.

What is a metamorphic rock with more than 50% platy and elongated minerals, all of which are large enough to be clearly visible?

The concept of metamorphic facies ____.

Metamorphic rocks ____.

Contact metamorphism ____.

During metamorphism, the original rock undergoes changes ____.

Concentric zones surrounding an igneous intrusion in which contact metamorphism has taken place are called ____________________.

Understanding Earth: a Dynamic and Evolving Planet

Plate Tectonics: a Unifying Theory

Minerals: The Building Blocks of Rocks

Igneous Rocks and Plutons

Volcanoes and Volcanism

Weathering, Erosion, and Soil

Sediment and Sedimentary Rocks

Earthquakes and Earthapos;s Interior

Deformation, Mountain Building, and Earthapos;s Crust

Mass Wasting

Running Water--Streams and Rivers

Groundwater

Glaciers and Glaciation

The Work of Wind and Deserts

Oceans, Shorelines, and Shoreline Processes

Geologic Time: Concepts and Principles

Organic Evolution--The Theory and Its Supporting Evidence

Precambrian Earth and Life History

Paleozoic Earth History

Paleozoic Life History

Mesozoic Earth and Life History

Cenozoic Earth and Life History

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The minerals andalusite, sillimanite, and kyanite all have the chemical formula, Al₂SiO₅. Explain how three different minerals can have the same chemical components and why this fact is important.

For purposes of classification, metamorphic rocks are commonly divided into two groups based on their texture: and .