Question 1

What is an isograd?

Accepted Answer

An isograd is a line

Question 2

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 3

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

Accepted Answer

A) True 
 B)False

Question 4

Contact metamorphism along sills and dikes may produce metamorphosed zones many kilometers wide.

Accepted Answer

A) True 
 B)False

Question 5

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

Accepted Answer

A) True 
 B)False

Question 6

A rock that has both igneous and metamorphic characteristics is called _______.These rocks form as the result of _______ temperatures.

Accepted Answer

migmatite;

Question 7

Divergent plate boundaries are characterized by ____.

Accepted Answer

A)  hydrothermal alteration and contact metamorphism 
B)  regional and contact metamorphism 
C)  regional and dynamic metamorphism 
D)  dynamic and contact metamorphism 
E)  hydrothermal alteration and dynamic metamorphism 
A)  hydrothermal alteration and contact metamorphism 
B)  regional and contact metamorphism 
C)  regional and dynamic metamorphism 
D)  dynamic and contact metamorphism 
E)  hydrothermal alteration and dynamic metamorphism

Question 8

The type of metamorphism that typically produces the hard,dense,fine-grained rocks called mylonites is called ____________________.

Accepted Answer

The answer of The type of metamorphism that typically produces...

Question 9

Metamorphic rocks are commonly divided into these two groups,based on their textures: ____________________ and ____________________.

Accepted Answer

foliated,n

Question 10

Metamorphic rocks are most common in the flat-lying rocks overlying the stable shields of continents.

Accepted Answer

A) True 
 B)False

Question 11

Marble is

Accepted Answer

A)  an extremely hard rock. 
B)  the result of dynamic metamorphism. 
C)  metamorphosed limestone or dolostone. 
D)  an extremely hard rock AND metamorphosed limestone or dolostone. 
A)  an extremely hard rock. 
B)  the result of dynamic metamorphism. 
C)  metamorphosed limestone or dolostone. 
D)  an extremely hard rock AND metamorphosed limestone or dolostone.

Question 12

Why might the health hazard of asbestos be less widespread than previously believed?

Accepted Answer

The majority of asbestos used

Question 13

What are three possible sources of water and other fluids that are active in metamorphism?

Accepted Answer

water trapped in por

Question 14

The region between two _______ makes up a single metamorphic _______.

Accepted Answer

The answer of The region between two _______ makes up...

Question 15

A greenstone is a metamorphosed clay-rich sedimentary rock.

Accepted Answer

A) True 
 B)False

Question 16

Why is crocidolite asbestos harmful to lungs but chrysotile is not?

Accepted Answer

Crocidolite has thin,long,straight fiber

Question 17

What are the two most important sources of heat for metamorphism?

Accepted Answer

A)  intrusive magma bodies and deep burial 
B)  intrusive magma bodies and heat from the core 
C)  deep burial and volcanism 
D)  radioactive decay and volcanism 
E)  radioactive decay and deep burial 
A)  intrusive magma bodies and deep burial 
B)  intrusive magma bodies and heat from the core 
C)  deep burial and volcanism 
D)  radioactive decay and volcanism 
E)  radioactive decay and deep burial

Question 18

What physical properties have made asbestos an important industrial mineral?

Accepted Answer

noncombust

Question 19

When minerals in a metamorphic rock are arranged in a parallel manner this means that the rock was exposed to

Accepted Answer

A)  pressure perpendicular to the mineral alignment. 
B)  pressure parallel to the mineral alignment. 
C)  pressure coming equally from all sides. 
D)  pressure perpendicular and parallel to the mineral alignment. 
A)  pressure perpendicular to the mineral alignment. 
B)  pressure parallel to the mineral alignment. 
C)  pressure coming equally from all sides. 
D)  pressure perpendicular and parallel to the mineral alignment.

Question 20

What are some uses of metamorphic rocks such as marble,slate,sulfide ore,talc,graphite,and clay?

Accepted Answer

Marble is used as a building stone; some

Exam 8: Metamorphism and Metamorphic Rocks

What is an isograd?

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

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

Contact metamorphism along sills and dikes may produce metamorphosed zones many kilometers wide.

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

A rock that has both igneous and metamorphic characteristics is called _______.These rocks form as the result of _______ temperatures.

Divergent plate boundaries are characterized by ____.

The type of metamorphism that typically produces the hard,dense,fine-grained rocks called mylonites is called ____________________.

Metamorphic rocks are commonly divided into these two groups,based on their textures: ____________________ and ____________________.

Metamorphic rocks are most common in the flat-lying rocks overlying the stable shields of continents.

Marble is

Why might the health hazard of asbestos be less widespread than previously believed?

What are three possible sources of water and other fluids that are active in metamorphism?

The region between two _______ makes up a single metamorphic _______.

A greenstone is a metamorphosed clay-rich sedimentary rock.

Why is crocidolite asbestos harmful to lungs but chrysotile is not?

What are the two most important sources of heat for metamorphism?

What physical properties have made asbestos an important industrial mineral?

When minerals in a metamorphic rock are arranged in a parallel manner this means that the rock was exposed to

What are some uses of metamorphic rocks such as marble,slate,sulfide ore,talc,graphite,and clay?

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 Earth's Interior

Deformation,Mountain Building,and Earth'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

Geology in Perspective

Filters

A rock that has both igneous and metamorphic characteristics is called _.These rocks form as the result of _ temperatures.

Metamorphic rocks are commonly divided into these two groups,based on their textures: and .

The region between two _ makes up a single metamorphic _.