Question 1

What are tekites?

Accepted Answer

A)  globular to teardrop- shaped, dark, glassy, silica- rich impact melts 
B)  hard, foliated, hornfels chips in a shale heated by an intrusive granite 
C)  unusually coarse- grained migmatites that crystallized in a caldera 
D)  granular breccias produced by fault zone shattering 
A)  globular to teardrop- shaped, dark, glassy, silica- rich impact melts 
B)  hard, foliated, hornfels chips in a shale heated by an intrusive granite 
C)  unusually coarse- grained migmatites that crystallized in a caldera 
D)  granular breccias produced by fault zone shattering

Question 2

Which two, metamorphic rocks are each composed predominantly of a single mineral?

Accepted Answer

A)  mica schist and granitic gneiss 
B)  fault breccia and graphitic schist 
C)  marble and quartzite 
D)  garnet schist and andalusite hornfels 
A)  mica schist and granitic gneiss 
B)  fault breccia and graphitic schist 
C)  marble and quartzite 
D)  garnet schist and andalusite hornfels

Question 3

In 1915, which geologist proposed a series of metamorphic facies to describe the progressive mineralogic and textural changes in basalt as a function of temperature and pressure?

Accepted Answer

A)  Norman Bowen 
B)  William Logan 
C)  Pennti Eskola 
D)  George Dawson 
A)  Norman Bowen 
B)  William Logan 
C)  Pennti Eskola 
D)  George Dawson

Question 4

Where does burial metamorphism occur, how is it recognized and what conditions does it represent?

Accepted Answer

below 200° C and less than 8 km in thick

Question 5

___________are formed from the impact of an asteroid or meteorite.

Accepted Answer

A)  Subduction zones 
B)  Batholiths 
C)  Volcanoes 
D)  Astroblemes 
A)  Subduction zones 
B)  Batholiths 
C)  Volcanoes 
D)  Astroblemes

Question 6

Which type of metamorphism occurs specifically in the heated zone around a pluton or other body of magma?

Accepted Answer

The answer of Which type of metamorphism occurs specifically in...

Question 7

About 1.2 to 1.0 billion years ago, Canada had a mountain range the size of the modern Himalayas, with high grade metamorphic rocks (>800°C) forming in its roots. Where was this located?

Accepted Answer

A)  The Canadian Rockies 
B)  The Grenville Orogen stretching between Georgian Bay Ontario and Newfoundland 
C)  The Trans Hudson Orogen of Saskatchewan and Manitoba 
D)  The Coast Mountains of B.C. 
A)  The Canadian Rockies 
B)  The Grenville Orogen stretching between Georgian Bay Ontario and Newfoundland 
C)  The Trans Hudson Orogen of Saskatchewan and Manitoba 
D)  The Coast Mountains of B.C.

Question 8

Long linear metamorphic fold belts mark_______ .

Accepted Answer

A)  zones with the lowest geothermal gradients 
B)  the youngest mountains with the slowest rates of uplift 
C)  divergent plate settings (rifts) 
D)  modern or former convergent continental margins 
A)  zones with the lowest geothermal gradients 
B)  the youngest mountains with the slowest rates of uplift 
C)  divergent plate settings (rifts) 
D)  modern or former convergent continental margins

Question 9

________is a strong, parallel alignment of coarse mica flakes and/or of different mineral bands in a metamorphic rock.

Accepted Answer

A)  Rock cleavage 
B)  Foliation 
C)  Shear stress 
D)  Brecciation 
A)  Rock cleavage 
B)  Foliation 
C)  Shear stress 
D)  Brecciation

Question 10

___________is characterized by the segregation of light- and dark- coloured minerals into thin layers or bands.

Accepted Answer

A)  Quartzite 
B)  Slate 
C)  Granite gneiss 
D)  Garnet hornfels 
A)  Quartzite 
B)  Slate 
C)  Granite gneiss 
D)  Garnet hornfels

Question 11

What type of environment is typified by brittle deformation?

Accepted Answer

A)  shallow very high temperature settings as in contact metamorphism 
B)  intermediate depths with long slow heating and gradual strain rates 
C)  deep burial with great confining pressure 
D)  shallow, low temperature settings with high strain rates 
A)  shallow very high temperature settings as in contact metamorphism 
B)  intermediate depths with long slow heating and gradual strain rates 
C)  deep burial with great confining pressure 
D)  shallow, low temperature settings with high strain rates

Question 12

What platy, parallel, mineral grains are the most visual aspect of foliated metamorphic rocks?

Accepted Answer

A)  carbonates 
B)  quartz 
C)  feldspars 
D)  micas 
A)  carbonates 
B)  quartz 
C)  feldspars 
D)  micas

Question 13

Under the application of uniform, confining pressure, rocks will generally___ .

Accepted Answer

A)  shatter and turn into a breccia 
B)  increase in density but retain primary bedding orientations 
C)  bend, fold, buckle, and shear to make typical deformed metamorphic textures 
D)  grow or crystallize a new set of low density hydrous minerals 
A)  shatter and turn into a breccia 
B)  increase in density but retain primary bedding orientations 
C)  bend, fold, buckle, and shear to make typical deformed metamorphic textures 
D)  grow or crystallize a new set of low density hydrous minerals

Question 14

What do you call a coarse grained, foliated metamorphic rock having thick bands of dark ferromagnesian minerals alternating with pink feldspar and quartz layers?

Accepted Answer

A)  phyllite 
B)  hornfels 
C)  schist 
D)  gneiss 
A)  phyllite 
B)  hornfels 
C)  schist 
D)  gneiss

Question 15

Why is the regional metamorphism of ocean crust in a subduction zone considered separately from regular regional metamorphism?

Accepted Answer

A)  Because this setting does not involve any strain deformation. 
B)  The ocean crust has no hydrous minerals to destroy or recrystallize. 
C)  Unlike regular regional metamorphism, this does not occur on plate margins. 
D)  Both the basaltic composition and very low geothermal gradient (Low T, Hi P) are unique and lead to different facies than seen in continental rocks. 
A)  Because this setting does not involve any strain deformation. 
B)  The ocean crust has no hydrous minerals to destroy or recrystallize. 
C)  Unlike regular regional metamorphism, this does not occur on plate margins. 
D)  Both the basaltic composition and very low geothermal gradient (Low T, Hi P) are unique and lead to different facies than seen in continental rocks.

Question 16

Increasing regional metamorphic grade of a shale or mudstone would produce the sequence

Accepted Answer

A)  hornfels, amphibolite, migmatite 
B)  breccia, gouge, mylonite, ultramylonite 
C)  greenschist, amphibolite, granulite 
D)  slate, phyllite, schist, gneiss 
A)  hornfels, amphibolite, migmatite 
B)  breccia, gouge, mylonite, ultramylonite 
C)  greenschist, amphibolite, granulite 
D)  slate, phyllite, schist, gneiss

Question 17

In the formation of migmatites, which minerals start to melt first?

Accepted Answer

A)  zircon and magnetite 
B)  amphibole, biotite, and garnet 
C)  quartz and feldspar 
D)  chlorite and calcite 
A)  zircon and magnetite 
B)  amphibole, biotite, and garnet 
C)  quartz and feldspar 
D)  chlorite and calcite

Question 18

_______is thought to form by partial melting and in situ crystallization of the melted portion at the highest grade of regional metamorphism of crustal rocks.

Accepted Answer

A)  Meltite 
B)  Magmatite 
C)  Migmatite 
D)  Magnetite 
A)  Meltite 
B)  Magmatite 
C)  Migmatite 
D)  Magnetite

Question 19

Which rock forms by contact metamorphism of fine grained mudstones, shales, and volcanics?

Accepted Answer

A)  phyllite 
B)  gneiss 
C)  limestone 
D)  hornfels 
A)  phyllite 
B)  gneiss 
C)  limestone 
D)  hornfels

Question 20

Which facies would you expect to find with hydrous low temperature- low pressure burial metamorphism?

Accepted Answer

A)  zeolite 
B)  amphibolite 
C)  blueschist 
D)  granulite 
A)  zeolite 
B)  amphibolite 
C)  blueschist 
D)  granulite

What are tekites?

Which two, metamorphic rocks are each composed predominantly of a single mineral?

In 1915, which geologist proposed a series of metamorphic facies to describe the progressive mineralogic and textural changes in basalt as a function of temperature and pressure?

Where does burial metamorphism occur, how is it recognized and what conditions does it represent?

___________are formed from the impact of an asteroid or meteorite.

Which type of metamorphism occurs specifically in the heated zone around a pluton or other body of magma?

About 1.2 to 1.0 billion years ago, Canada had a mountain range the size of the modern Himalayas, with high grade metamorphic rocks (>800°C) forming in its roots. Where was this located?

Long linear metamorphic fold belts mark_______ .

________is a strong, parallel alignment of coarse mica flakes and/or of different mineral bands in a metamorphic rock.

___________is characterized by the segregation of light- and dark- coloured minerals into thin layers or bands.

What type of environment is typified by brittle deformation?

What platy, parallel, mineral grains are the most visual aspect of foliated metamorphic rocks?

Under the application of uniform, confining pressure, rocks will generally___ .

What do you call a coarse grained, foliated metamorphic rock having thick bands of dark ferromagnesian minerals alternating with pink feldspar and quartz layers?

Why is the regional metamorphism of ocean crust in a subduction zone considered separately from regular regional metamorphism?

Increasing regional metamorphic grade of a shale or mudstone would produce the sequence

In the formation of migmatites, which minerals start to melt first?

_______is thought to form by partial melting and in situ crystallization of the melted portion at the highest grade of regional metamorphism of crustal rocks.

Which rock forms by contact metamorphism of fine grained mudstones, shales, and volcanics?

Which facies would you expect to find with hydrous low temperature- low pressure burial metamorphism?

An Introduction to Geology and Plate Tectonics

Minerals: the Building Blocks of Rocks

Igneous Rocks

Volcanoes and Volcanic Processes

Weathering and Soil

Sedimentary Rocks

Metamorphism and Metamorphic Rocks

Geologic Time

Crustal Deformation

Earthquakes and Earths Interior

The Ocean Floor

Plate Tectonics: the Framework for Modern Geology

Mountain Building and Continental Frameworks

Mass Wasting: the Work of Gravity

Running Water

Groundwater

Glaciers and Glaciation

Shorelines

Mineral and Energy Resources

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Exam 18: Deserts and Winds

What are tekites?

Which two, metamorphic rocks are each composed predominantly of a single mineral?

In 1915, which geologist proposed a series of metamorphic facies to describe the progressive mineralogic and textural changes in basalt as a function of temperature and pressure?

Where does burial metamorphism occur, how is it recognized and what conditions does it represent?

___________are formed from the impact of an asteroid or meteorite.

Which type of metamorphism occurs specifically in the heated zone around a pluton or other body of magma?

About 1.2 to 1.0 billion years ago, Canada had a mountain range the size of the modern Himalayas, with high grade metamorphic rocks (>800°C) forming in its roots. Where was this located?

Long linear metamorphic fold belts mark_______ .

________is a strong, parallel alignment of coarse mica flakes and/or of different mineral bands in a metamorphic rock.

___________is characterized by the segregation of light- and dark- coloured minerals into thin layers or bands.

What type of environment is typified by brittle deformation?

What platy, parallel, mineral grains are the most visual aspect of foliated metamorphic rocks?

Under the application of uniform, confining pressure, rocks will generally___ .

What do you call a coarse grained, foliated metamorphic rock having thick bands of dark ferromagnesian minerals alternating with pink feldspar and quartz layers?

Why is the regional metamorphism of ocean crust in a subduction zone considered separately from regular regional metamorphism?

Increasing regional metamorphic grade of a shale or mudstone would produce the sequence

In the formation of migmatites, which minerals start to melt first?

_______is thought to form by partial melting and in situ crystallization of the melted portion at the highest grade of regional metamorphism of crustal rocks.

Which rock forms by contact metamorphism of fine grained mudstones, shales, and volcanics?

Which facies would you expect to find with hydrous low temperature- low pressure burial metamorphism?

An Introduction to Geology and Plate Tectonics

Minerals: the Building Blocks of Rocks

Igneous Rocks

Volcanoes and Volcanic Processes

Weathering and Soil

Sedimentary Rocks

Metamorphism and Metamorphic Rocks

Geologic Time

Crustal Deformation

Earthquakes and Earths Interior

The Ocean Floor

Plate Tectonics: the Framework for Modern Geology

Mountain Building and Continental Frameworks

Mass Wasting: the Work of Gravity

Running Water

Groundwater

Glaciers and Glaciation

Shorelines

Mineral and Energy Resources

Filters