Question 1

Which of the following best describes the type of rocks that make up Wrangellia,an exotic terrain in western North America?

Accepted Answer

A) continental fragment 
B) island arc 
C) oceanic plateau 
D) oceanic fragment 
A) continental fragment 
B) island arc 
C) oceanic plateau 
D) oceanic fragment

Question 2

The presence of ultramafic lava flows (komatiites)in the Archean suggest that mantle temperatures back then were ______ the temperatures today.

Accepted Answer

A) similar to 
B) cooler than 
C) much cooler than 
D) hotter than 
A) similar to 
B) cooler than 
C) much cooler than 
D) hotter than

Question 3

The geologic events preserved in the Canadian Shield took place mainly during the

Accepted Answer

A) Archean eon. 
B) Paleozoic era. 
C) Phanerozoic eon. 
D) Mesozoic era. 
A) Archean eon. 
B) Paleozoic era. 
C) Phanerozoic eon. 
D) Mesozoic era.

Question 4

The present day Himalayan orogeny is considered similar to the __________ orogeny.

Accepted Answer

A) Appalachian 
B) Taconic 
C) Grenville 
D) Caledonian 
A) Appalachian 
B) Taconic 
C) Grenville 
D) Caledonian

Question 5

Which of the following is not a cause of epeirogenic movement?

Accepted Answer

A) glacial rebound 
B) lithospheric cooling 
C) lithospheric heating 
D) ocean-continent convergence 
A) glacial rebound 
B) lithospheric cooling 
C) lithospheric heating 
D) ocean-continent convergence

Question 6

The Himalayas began to form approximately ______ when the Indian subcontinent began to collide with Tibet.

Accepted Answer

A) 5 million years ago 
B) 50 million years ago 
C) 500 million years ago 
D) 5 billion years ago 
A) 5 million years ago 
B) 50 million years ago 
C) 500 million years ago 
D) 5 billion years ago

Question 7

What is the name of the supercontinent that assembled during the late Proterozoic?

Accepted Answer

A) Pangea 
B) Appalachia 
C) Laurentia 
D) Rhodinia 
A) Pangea 
B) Appalachia 
C) Laurentia 
D) Rhodinia

Question 8

What mountain chain runs along the eastern margin of North America?

Accepted Answer

A) the Andes 
B) the Appalachians 
C) the Caledonides 
D) the Cordillera 
A) the Andes 
B) the Appalachians 
C) the Caledonides 
D) the Cordillera

Question 9

Crustal movement due to glacial rebound is considered to be a form of

Accepted Answer

A) orogeny. 
B) accretion. 
C) epeirogeny. 
D) subsidence. 
A) orogeny. 
B) accretion. 
C) epeirogeny. 
D) subsidence.

Question 10

Over the past 4 billion years,which of the following best describes how the volume of the continents has changed?

Accepted Answer

A) The volume of the continents has decreased by approximately 100 cubic kilometers per year. 
B) The volume of the continents has remained approximately constant. 
C) The volume of the continents has increased by approximately 2 cubic kilometers per year. 
D) The volume of the continents has increased by approximately 100 cubic kilometers per year. 
A) The volume of the continents has decreased by approximately 100 cubic kilometers per year. 
B) The volume of the continents has remained approximately constant. 
C) The volume of the continents has increased by approximately 2 cubic kilometers per year. 
D) The volume of the continents has increased by approximately 100 cubic kilometers per year.

Question 11

How far has India penetrated into Eurasia?

Accepted Answer

A) a few hundred meters 
B) a few thousand meters 
C) 100 kilometers 
D) a few thousand kilometers 
A) a few hundred meters 
B) a few thousand meters 
C) 100 kilometers 
D) a few thousand kilometers

Question 12

Cratonic keels are

Accepted Answer

A) thinner under continents than oceans. 
B) of even thickness everywhere. 
C) thinnest under cratons. 
D) thicker under continents than oceans. 
A) thinner under continents than oceans. 
B) of even thickness everywhere. 
C) thinnest under cratons. 
D) thicker under continents than oceans.

Question 13

The tectonic age of a rock is the

Accepted Answer

A) crystallization age of that rock. 
B) stratigraphic age of that rock. 
C) oldest isotopic age obtained for that rock. 
D) youngest isotopic age obtained for that rock. 
A) crystallization age of that rock. 
B) stratigraphic age of that rock. 
C) oldest isotopic age obtained for that rock. 
D) youngest isotopic age obtained for that rock.

Question 14

In what type of volcanic deposits are you most likely to find xenoliths of cratonic keels?

Accepted Answer

A) komatiite lavas 
B) basalts 
C) kimberlite pipes 
D) andesites 
A) komatiite lavas 
B) basalts 
C) kimberlite pipes 
D) andesites

Question 15

Approximately when did the first long-lasting continental crust form?

Accepted Answer

A) 4 billion years 
B) 3 billion years 
C) 2 billion years 
D) 200 million years 
A) 4 billion years 
B) 3 billion years 
C) 2 billion years 
D) 200 million years

Question 16

The collision of India with Eurasia thrust China and Mongolia

Accepted Answer

A) westward. 
B) northward. 
C) eastward. 
D) southward. 
A) westward. 
B) northward. 
C) eastward. 
D) southward.

Question 17

Which of the following orogenies represents the final assembly of Pangaea?

Accepted Answer

A) Acadian orogeny 
B) Caledonian orogeny 
C) Appalachian orogeny 
D) Taconic orogeny 
A) Acadian orogeny 
B) Caledonian orogeny 
C) Appalachian orogeny 
D) Taconic orogeny

Question 18

Which of the following processes is responsible for the topography of the Basin and Range province in western North America?

Accepted Answer

A) normal faulting 
B) strike-slip faulting 
C) thrust faulting 
D) upwarping 
A) normal faulting 
B) strike-slip faulting 
C) thrust faulting 
D) upwarping

Question 19

Why is the North American Cordillera topographically higher than the Appalachians?

Accepted Answer

A) because the Appalachians have undergone less erosion 
B) because the Cordillera formed by continent-continent collision 
C) because the main orogeny in the Cordillera was more recent 
D) because the spreading rate of the East Pacific Rise is greater than the spreading rate of the Mid-Atlantic Ridge 
A) because the Appalachians have undergone less erosion 
B) because the Cordillera formed by continent-continent collision 
C) because the main orogeny in the Cordillera was more recent 
D) because the spreading rate of the East Pacific Rise is greater than the spreading rate of the Mid-Atlantic Ridge

Question 20

Cratons are made up of

Accepted Answer

A) orogens and platforms. 
B) platforms and shields. 
C) orogens and shields. 
D) orogens,platforms,and shields. 
A) orogens and platforms. 
B) platforms and shields. 
C) orogens and shields. 
D) orogens,platforms,and shields.

Exam 10: History of the Continents

Which of the following best describes the type of rocks that make up Wrangellia,an exotic terrain in western North America?

The presence of ultramafic lava flows (komatiites)in the Archean suggest that mantle temperatures back then were ______ the temperatures today.

The geologic events preserved in the Canadian Shield took place mainly during the

The present day Himalayan orogeny is considered similar to the __________ orogeny.

Which of the following is not a cause of epeirogenic movement?

The Himalayas began to form approximately ______ when the Indian subcontinent began to collide with Tibet.

What is the name of the supercontinent that assembled during the late Proterozoic?

What mountain chain runs along the eastern margin of North America?

Crustal movement due to glacial rebound is considered to be a form of

Over the past 4 billion years,which of the following best describes how the volume of the continents has changed?

How far has India penetrated into Eurasia?

Cratonic keels are

The tectonic age of a rock is the

In what type of volcanic deposits are you most likely to find xenoliths of cratonic keels?

Approximately when did the first long-lasting continental crust form?

The collision of India with Eurasia thrust China and Mongolia

Which of the following orogenies represents the final assembly of Pangaea?

Which of the following processes is responsible for the topography of the Basin and Range province in western North America?

Why is the North American Cordillera topographically higher than the Appalachians?

Cratons are made up of

The Earth System

Plate Tectonics: The Unifying Theory

Earth Materials: Minerals and Rocks

Igneous Rocks: Solids From Melts

Sedimentation: Rocks Formed by Surface Processes

Metamorphism: Alteration of Rocks by Temperature and Pressure

Deformation: Modification of Rocks by Folding and Fracturing

Clocks in Rocks: Timing the Geologic Period

Early History of the Terrestrial Planets

Geobiology: Life Interacts With Earth

Volcanoes

Earthquakes

Exploring Earths Interior

The Climate System

Weathering,erosion,and Mass Wasting: Interactions Between the Climate and Plate Tectonic Systems

The Hydrologic Cycle and Groundwater

Stream Transport: From Mountains to Oceans

Winds and Deserts

Coastlines and Ocean Basins

Glaciers: the Work of Ice

Landscapes: Tectonic and Climate Interaction

The Human Impact of Earths Environment

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