Question 1

Compared to low-grade metamorphic rocks,high-grade rocks ____________.

Accepted Answer

A)  always contain more quartz and feldspar 
B)  are produced closer to the surface, high in the stratigraphic column 
C)  are produced at greater temperatures and pressures 
D)  are produced at cooler temperatures, but greater pressures 
A)  always contain more quartz and feldspar 
B)  are produced closer to the surface, high in the stratigraphic column 
C)  are produced at greater temperatures and pressures 
D)  are produced at cooler temperatures, but greater pressures

Question 2

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 3

Precambrian metamorphic rocks are exposed at the surface ____________.

Accepted Answer

A)  on Mars and Venus, but nowhere on Earth 
B)  at places in continental interiors termed platforms 
C)  at places in continental interiors termed shields 
D)  at the bottom of the deep sea 
A)  on Mars and Venus, but nowhere on Earth 
B)  at places in continental interiors termed platforms 
C)  at places in continental interiors termed shields 
D)  at the bottom of the deep sea

Question 4

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

Accepted Answer

A)  mineral cleavage 
B)  foliation 
C)  recrystallization 
D)  sedimentary structures 
A)  mineral cleavage 
B)  foliation 
C)  recrystallization 
D)  sedimentary structures

Question 5

The process of low-grade metamorphic rocks being altered to form high-grade metamorphic rocks is termed ____________ metamorphism.

Accepted Answer

A)  foliated 
B)  prograde 
C)  retrograde 
D)  dynamic 
A)  foliated 
B)  prograde 
C)  retrograde 
D)  dynamic

Question 6

In the formation of gneiss from granite,the distinctive compositional bands form due to ____________.

Accepted Answer

A)  crystals migrating within the rock 
B)  crystals dissolving, and atoms and ions migrating and reorganizing as new crystals 
C)  crystals melting, with new crystals solidifying in color bands 
D)  the bizarre and seemingly unknowable nature of the blueschist metamorphic facies 
A)  crystals migrating within the rock 
B)  crystals dissolving, and atoms and ions migrating and reorganizing as new crystals 
C)  crystals melting, with new crystals solidifying in color bands 
D)  the bizarre and seemingly unknowable nature of the blueschist metamorphic facies

Question 7

Two common metamorphic rocks that typically lack foliation are ____________.

Accepted Answer

A)  slate and phyllite 
B)  gneiss and migmatite 
C)  quartzite and marble 
D)  schist and metaconglomerate 
A)  slate and phyllite 
B)  gneiss and migmatite 
C)  quartzite and marble 
D)  schist and metaconglomerate

Question 8

The blueschist facies is a metamorphic realm of ____________.

Accepted Answer

A)  high temperature and pressure 
B)  low temperature and pressure 
C)  high temperature but relatively low pressure 
D)  high pressure but relatively low temperature 
A)  high temperature and pressure 
B)  low temperature and pressure 
C)  high temperature but relatively low pressure 
D)  high pressure but relatively low temperature

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

Differential stress will cause crystals to align in a preferred orientation unless the crystals are ____________.

Accepted Answer

A)  primarily mica 
B)  platy 
C)  equant 
D)  elongate 
A)  primarily mica 
B)  platy 
C)  equant 
D)  elongate

Compared to low-grade metamorphic rocks,high-grade rocks ____________.

Rapid,deep burial of sediments in an accretionary prism leads to the formation of a metamorphic rock termed ____________.

Precambrian metamorphic rocks are exposed at the surface ____________.

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

The process of low-grade metamorphic rocks being altered to form high-grade metamorphic rocks is termed ____________ metamorphism.

In the formation of gneiss from granite,the distinctive compositional bands form due to ____________.

Two common metamorphic rocks that typically lack foliation are ____________.

The blueschist facies is a metamorphic realm of ____________.

Marble and quartzite are nonfoliated rocks because ____________.

Differential stress will cause crystals to align in a preferred orientation unless the crystals are ____________.

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 Earths 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

Running Water: the Geology of Streams and Floods

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

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Exam 7: Metamorphism: a Process of Change

Compared to low-grade metamorphic rocks,high-grade rocks ____________.

Rapid,deep burial of sediments in an accretionary prism leads to the formation of a metamorphic rock termed ____________.

Precambrian metamorphic rocks are exposed at the surface ____________.

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

The process of low-grade metamorphic rocks being altered to form high-grade metamorphic rocks is termed ____________ metamorphism.

In the formation of gneiss from granite,the distinctive compositional bands form due to ____________.

Two common metamorphic rocks that typically lack foliation are ____________.

The blueschist facies is a metamorphic realm of ____________.

Marble and quartzite are nonfoliated rocks because ____________.

Differential stress will cause crystals to align in a preferred orientation unless the crystals are ____________.

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 Earths 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

Running Water: the Geology of Streams and Floods

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

Filters