Question 1

Dynamothermal (regional)metamorphism occurs when ________.

Accepted Answer

A) rock becomes deeply buried during continental collision and mountain building 
B) regression of the sea leads to erosion of sedimentary cover on a body of rock 
C) the upper surface of a body of rock develops a thick soil profile 
D) a pluton causes metamorphism in a small surrounding region 
A) rock becomes deeply buried during continental collision and mountain building 
B) regression of the sea leads to erosion of sedimentary cover on a body of rock 
C) the upper surface of a body of rock develops a thick soil profile 
D) a pluton causes metamorphism in a small surrounding region

Question 2

The rock hornfel is often formed due to ________ metamorphism.

Accepted Answer

A) dynamothermal 
B) hydrothermal 
C) dynamic 
D) thermal 
A) dynamothermal 
B) hydrothermal 
C) dynamic 
D) thermal

Question 3

Foliated metamorphic rocks possess ________.

Accepted Answer

A) leafy plant fossils (ancient foliage) 
B) a homogeneous texture resulting from randomly oriented grains 
C) mineral grains in preferred orientations or patterns of association (banding) 
D) minerals precipitated directly from seawater 
A) leafy plant fossils (ancient foliage) 
B) a homogeneous texture resulting from randomly oriented grains 
C) mineral grains in preferred orientations or patterns of association (banding) 
D) minerals precipitated directly from seawater

Question 4

Which of the following is a high-grade metamorphic rock?

Accepted Answer

A) quartzite 
B) slate 
C) gneiss 
D) schist 
A) quartzite 
B) slate 
C) gneiss 
D) schist

Question 5

The rapid,deep burial of sediments in an accretionary prism leads to the formation of a metamorphic rock termed ________.

Accepted Answer

A) blueschist 
B) greenschist 
C) migmatite 
D) gneiss 
A) blueschist 
B) greenschist 
C) migmatite 
D) gneiss

Question 6

Which of the following images is of a foliated metamorphic rock?

Accepted Answer

A) A 
B) B 
C) C 
D) D 
A) A 
B) B 
C) C 
D) D

Question 7

Consult the figure below.The region of thermally metamorphosed rock surrounding a cooled pluton is called a(n)________.

Accepted Answer

A) shear zone 
B) aureole 
C) chilled margin 
D) metamorphic ring 
A) shear zone 
B) aureole 
C) chilled margin 
D) metamorphic ring

Question 8

Within a single mountain range,________.

Accepted Answer

A) only low-grade metamorphic rocks are likely to be found 
B) only high-grade metamorphic rocks are likely to be found 
C) only nonfoliated metamorphic rocks are likely to be found 
D) it is possible to find a variety of metamorphic rocks produced in distinct facies,including high-,intermediate-,and low-grade rocks 
A) only low-grade metamorphic rocks are likely to be found 
B) only high-grade metamorphic rocks are likely to be found 
C) only nonfoliated metamorphic rocks are likely to be found 
D) it is possible to find a variety of metamorphic rocks produced in distinct facies,including high-,intermediate-,and low-grade rocks

Question 9

Marble and quartzite are nonfoliated rocks because ________.

Accepted Answer

A) they are never found beneath fault zones or collisional mountain ranges 
B) both are dominated by minerals that produce equant grains 
C) both are dominated by minerals with crystalline structures that cannot be dissolved 
D) dynamothermal metamorphism can break down the structures of their constituent minerals,but neither of these minerals is stable in that metamorphic environment 
A) they are never found beneath fault zones or collisional mountain ranges 
B) both are dominated by minerals that produce equant grains 
C) both are dominated by minerals with crystalline structures that cannot be dissolved 
D) dynamothermal metamorphism can break down the structures of their constituent minerals,but neither of these minerals is stable in that metamorphic environment

Question 10

Thermal (contact)metamorphism occurs ________.

Accepted Answer

A) in areas surrounding igneous intrusions 
B) only where gneiss is in contact with schist 
C) as a consequence of the sinking of a broad region to great depth 
D) only at the surface,where rock is in contact with the atmosphere 
A) in areas surrounding igneous intrusions 
B) only where gneiss is in contact with schist 
C) as a consequence of the sinking of a broad region to great depth 
D) only at the surface,where rock is in contact with the atmosphere

Question 11

The figure below shows the application of ________.

Accepted Answer

A) tension 
B) pressure 
C) tensional stress 
D) shear stress 
A) tension 
B) pressure 
C) tensional stress 
D) shear stress

Question 12

Foliation is the alignment of ________ in a metamorphic rock.

Accepted Answer

A) minerals 
B) strata 
C) stress 
D) facies 
A) minerals 
B) strata 
C) stress 
D) facies

Question 13

________ is a common foliated metamorphic rock.

Accepted Answer

A) Marble 
B) Gneiss 
C) Hornfel 
D) Diorite 
A) Marble 
B) Gneiss 
C) Hornfel 
D) Diorite

Question 14

Foliated rock is created by a preferential stress oriented ________ the foliation.

Accepted Answer

A) the same way as 
B) diagonally to 
C) perpendicular to 
D) parallel to 
A) the same way as 
B) diagonally to 
C) perpendicular to 
D) parallel to

Question 15

Heating up a rock causes the atoms in the rock to vibrate and break their bonds.The atoms can then move slightly and create new bonds with nearby atoms.This process is called ________.

Accepted Answer

A) preferred orientation 
B) solid-state diffusion 
C) plastic deformation 
D) melting 
A) preferred orientation 
B) solid-state diffusion 
C) plastic deformation 
D) melting

Question 16

________ commonly serves as a protolith in the formation of marble.

Accepted Answer

A) Limestone 
B) Sandstone 
C) Shale 
D) Gneiss 
A) Limestone 
B) Sandstone 
C) Shale 
D) Gneiss

Question 17

Geologists classify metamorphic rocks according to ________.

Accepted Answer

A) whether they are foliated 
B) whether they contain pseudomorphs 
C) the percentage of silica 
D) the size of their crystals 
A) whether they are foliated 
B) whether they contain pseudomorphs 
C) the percentage of silica 
D) the size of their crystals

Question 18

Slaty cleavage,schistosity,and compositional banding are all examples of ________.

Accepted Answer

A) mineral cleavage 
B) foliation 
C) recrystallization 
D) metamorphic facies 
A) mineral cleavage 
B) foliation 
C) recrystallization 
D) metamorphic facies

Question 19

The development of a preferred orientation of large,flaky mica crystals within metamorphic rock is termed ________.

Accepted Answer

A) slaty cleavage 
B) phyllitic luster 
C) schistosity 
D) compositional banding 
A) slaty cleavage 
B) phyllitic luster 
C) schistosity 
D) compositional banding

Question 20

Nonfoliated metamorphic rocks are classified based on their ________.

Accepted Answer

A) metamorphic texture 
B) mineral composition 
C) percentage of preferred orientation 
D) proximity to the metamorphic source 
A) metamorphic texture 
B) mineral composition 
C) percentage of preferred orientation 
D) proximity to the metamorphic source

Exam 7: Metamorphism: A Process of Change

Dynamothermal (regional)metamorphism occurs when ________.

The rock hornfel is often formed due to ________ metamorphism.

Foliated metamorphic rocks possess ________.

Which of the following is a high-grade metamorphic rock?

The rapid,deep burial of sediments in an accretionary prism leads to the formation of a metamorphic rock termed ________.

Which of the following images is of a foliated metamorphic rock?

Consult the figure below.The region of thermally metamorphosed rock surrounding a cooled pluton is called a(n)________.

Within a single mountain range,________.

Marble and quartzite are nonfoliated rocks because ________.

Thermal (contact)metamorphism occurs ________.

The figure below shows the application of ________.

Foliation is the alignment of ________ in a metamorphic rock.

________ is a common foliated metamorphic rock.

Foliated rock is created by a preferential stress oriented ________ the foliation.

Heating up a rock causes the atoms in the rock to vibrate and break their bonds.The atoms can then move slightly and create new bonds with nearby atoms.This process is called ________.

________ commonly serves as a protolith in the formation of marble.

Geologists classify metamorphic rocks according to ________.

Slaty cleavage,schistosity,and compositional banding are all examples of ________.

The development of a preferred orientation of large,flaky mica crystals within metamorphic rock is termed ________.

Nonfoliated metamorphic rocks are classified based on their ________.

The Earth in Context

The Way the Earth Works: Plate Tectonics

Patterns in Nature: Minerals

Up From the Inferno: Magma and Igneous Rocks

The Wrath of Vulcan: Volcanic Eruptions

Pages of Earth S Past: Sedimentary Rocks

A Violent Pulse: Earthquakes

Crags, cracks, and Crumples: Crustal Deformation and Mountain Building

Deep Time: How Old Is Old

A Biography of Earth

Riches in Rock: Energy and 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

Dry Regions: The Geology of Deserts

Amazing Ice: Glaciers and Ice Ages

Global Change in the Earth System

Interlude A: Rock Groups

Interlude B: A Surface Veneer: Sediments and Soils

Interlude C: The Rock Cycle

Interlude D: The Earth S Interior Revisited: Insights From Geophysics

Interlude E: Memories of Past Life: Fossils and Evolution

Interlude F: An Introduction to Landscapes and the Hydrologic Cycle

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