Question 1

Describe the characteristics of marble.How does it form,and what is it used for?

Accepted Answer

Marble is metamorphosed of calcite or dolomite with fine to coarse grains.Marble is produced by contact or regional metamorphism of limestone or dolostone.Marble is a common building stone and is used for sculpting.

Question 2

What is the difference between slate and phyllite?

Accepted Answer

Grain size.Phyllite grains are larger,although they are still too small to be seen.The grains give the rock a glossy or lustrous sheen.

Question 3

What is metamorphic grade,and present an example of how a rock reaches its metamorphic grade?

Accepted Answer

Metamorphic grade is a term that characterizes the degree to which a rock has undergone metamorphic change.When shale is metamorphosed,chlorite first begins to crystallize at about 200°C.If the metamorphism stops there,the rock will be low grade.If temperatures and pressures increase,new minerals replace chlorite,and if temperatures exceed 500°C,sillimanite will appear.

Question 4

How are metamorphic facies defined or recognized?

Accepted Answer

Metamorphic facies a

Question 5

Metamorphic rocks are very common in the crystalline basement rocks of the oldest parts of continents.

Accepted Answer

A) True 
 B)False

Question 6

What is an isograd?

Accepted Answer

An isograd is a line

Question 7

Asbestos was once commonly used for insulation and fireproofing in buildings and building materials,but it was found to be hazardous and is no longer used in construction.

Accepted Answer

A) True 
 B)False

Question 8

Why is time important in metamorphism?

Accepted Answer

Chemical reactions,e

Question 9

What is an aureole?

Accepted Answer

An aureole is the ar

Question 10

An example of a region where mylonites are formed is the:

Accepted Answer

A) Cascade Range. 
B) mid-oceanic ridges. 
C) San Andreas Fault Zone. 
D) Valles Marianas Rift Zone. 
E) Mendocino Fracture Zone. 
A) Cascade Range. 
B) mid-oceanic ridges. 
C) San Andreas Fault Zone. 
D) Valles Marianas Rift Zone. 
E) Mendocino Fracture Zone.

Question 11

What is a metamorphic zone?

Accepted Answer

A metamorphic zone i

Question 12

How are metamorphic rocks classified? What are the two main classifications,and how are they different from each other?

Accepted Answer

Metamorphic rocks are primarily classifi

Question 13

What is a metamorphic facies,and how are metamorphic facies named?

Accepted Answer

A metamorphic facies is a group of metam

Question 14

Which of the following lists of foliated rock types is arranged 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 15

Is it always possible to identify the parent rock when looking at a metamorphic rock? Why or why not?

Accepted Answer

In some cases the original rock can be r

Question 16

Study Figure 7.18 in the text.How must conditions change for a rock to go from an amphibolite to an eclogite facies? What happens if pressure is at 4 kbar but temperature decreases from 600 degrees C to 400 degrees C?

Accepted Answer

For a change from amphibolite to eclogit

Question 17

A rock with both igneous and high-grade metamorphic characteristics is a(n)____________________.

Accepted Answer

The answer of A rock with both igneous and high-grade...

Question 18

The temperature of the intrusive magma has little effect on the metamorphic minerals formed.

Accepted Answer

A) True 
 B)False

Question 19

Describe metamorphism in an aureole.Draw and label a picture of metamorphism surrounding a granite pluton to show the zones that might surround an intrusion.

Accepted Answer

The country rock closest to th

Question 20

Metamorphism is a physical and chemical change that occurs in such a way that:

Accepted Answer

A) disequilibrium is reached with the new physical and chemical environment. 
B) a dynamic equilibrium is reached. 
C) equilibrium with the new environment is disturbed. 
D) the rock reaches equilibrium with its new environment. 
E) the rock's chemistry and texture become increasingly unstable. 
A) disequilibrium is reached with the new physical and chemical environment. 
B) a dynamic equilibrium is reached. 
C) equilibrium with the new environment is disturbed. 
D) the rock reaches equilibrium with its new environment. 
E) the rock's chemistry and texture become increasingly unstable.

Describe the characteristics of marble.How does it form,and what is it used for?

What is the difference between slate and phyllite?

What is metamorphic grade,and present an example of how a rock reaches its metamorphic grade?

How are metamorphic facies defined or recognized?

Metamorphic rocks are very common in the crystalline basement rocks of the oldest parts of continents.

What is an isograd?

Asbestos was once commonly used for insulation and fireproofing in buildings and building materials,but it was found to be hazardous and is no longer used in construction.

Why is time important in metamorphism?

What is an aureole?

An example of a region where mylonites are formed is the:

What is a metamorphic zone?

How are metamorphic rocks classified? What are the two main classifications,and how are they different from each other?

What is a metamorphic facies,and how are metamorphic facies named?

Which of the following lists of foliated rock types is arranged according to increasing coarseness of texture?

Is it always possible to identify the parent rock when looking at a metamorphic rock? Why or why not?

Study Figure 7.18 in the text.How must conditions change for a rock to go from an amphibolite to an eclogite facies? What happens if pressure is at 4 kbar but temperature decreases from 600 degrees C to 400 degrees C?

A rock with both igneous and high-grade metamorphic characteristics is a(n)____________________.

The temperature of the intrusive magma has little effect on the metamorphic minerals formed.

Describe metamorphism in an aureole.Draw and label a picture of metamorphism surrounding a granite pluton to show the zones that might surround an intrusion.

Metamorphism is a physical and chemical change that occurs in such a way that:

Understanding Earth: A Dynamic and Evolving Planet

Plate Tectonics: A Unifying Theory

Minerals: The Building Blocks of Rocks

Igneous Rocks and Intrusive Igneous Activity

Volcanoes and Volcanism

Weathering, Soil, and Sedimentary Rocks

Earthquakes and Earths Interior

Deformation, Mountain Building, and the Continents

Mass Wasting

Running Water

Groundwater

Glaciers and Glaciation

The Work of Wind and Deserts

Oceans, Shorelines, and Shoreline Processes

Geologic Time: Concepts and Principles

Earth History

Life History

Filters

Exam 7: Metamorphism and Metamorphic Rocks

Describe the characteristics of marble.How does it form,and what is it used for?

What is the difference between slate and phyllite?

What is metamorphic grade,and present an example of how a rock reaches its metamorphic grade?

How are metamorphic facies defined or recognized?

Metamorphic rocks are very common in the crystalline basement rocks of the oldest parts of continents.

What is an isograd?

Asbestos was once commonly used for insulation and fireproofing in buildings and building materials,but it was found to be hazardous and is no longer used in construction.

Why is time important in metamorphism?

What is an aureole?

An example of a region where mylonites are formed is the:

What is a metamorphic zone?

How are metamorphic rocks classified? What are the two main classifications,and how are they different from each other?

What is a metamorphic facies,and how are metamorphic facies named?

Which of the following lists of foliated rock types is arranged according to increasing coarseness of texture?

Is it always possible to identify the parent rock when looking at a metamorphic rock? Why or why not?

Study Figure 7.18 in the text.How must conditions change for a rock to go from an amphibolite to an eclogite facies? What happens if pressure is at 4 kbar but temperature decreases from 600 degrees C to 400 degrees C?

A rock with both igneous and high-grade metamorphic characteristics is a(n)____________________.

The temperature of the intrusive magma has little effect on the metamorphic minerals formed.

Describe metamorphism in an aureole.Draw and label a picture of metamorphism surrounding a granite pluton to show the zones that might surround an intrusion.

Metamorphism is a physical and chemical change that occurs in such a way that:

Understanding Earth: A Dynamic and Evolving Planet

Plate Tectonics: A Unifying Theory

Minerals: The Building Blocks of Rocks

Igneous Rocks and Intrusive Igneous Activity

Volcanoes and Volcanism

Weathering, Soil, and Sedimentary Rocks

Earthquakes and Earths Interior

Deformation, Mountain Building, and the Continents

Mass Wasting

Running Water

Groundwater

Glaciers and Glaciation

The Work of Wind and Deserts

Oceans, Shorelines, and Shoreline Processes

Geologic Time: Concepts and Principles

Earth History

Life History

Filters