Question 1

Glaciers erode underlying bedrock in which two main ways?

Accepted Answer

plucking a...

Question 2

Which of the following best describes the term glacial drift?

Accepted Answer

A)  floating of icebergs southward from the north polar seas
B)  slow, plastic flow in the brittle zone of a glacier
C)  the sedimentary deposits of outwash and till
D)  the slow, southward advance of the continental ice sheets over Canada and North America during the PleistoceneE) B) and C)
F) All of the above

Question 3

Bowl-shaped depressions in bedrock at upstream ends of alpine glacial valleys are called ________.

Accepted Answer

The answer of Bowl-shaped depressions in bedrock at upstream ends...

Question 4

Which glacial landform was originally deposited as a fan against glacial ice or within depressions on the ice surface?

Accepted Answer

A)  end moraines
B)  valley trains
C)  kames
D)  ground morainesE) None of the above
F) A) and B)

Question 5

A gently rolling layer of till called ________ is deposited as ice advanced and then retreated.

Accepted Answer

The answer of A gently rolling layer of till called...

Question 6

Where would you likely find glaciers that could only move by plastic flow above the bed?

Accepted Answer

A)  in polar regions or with extreme cold where ice is frozen to the bedrock
B)  in high elevation tropical settings
C)  near the terminus of any ice sheet
D)  on ice shelvesE) All of the above
F) C) and D)

Question 7

Which process occurs where a glacier enters the sea?

Accepted Answer

A)  kaming
B)  calving
C)  surging
D)  salinizationE) C) and D)
F) A) and B)

Question 8

An erratic is made of ________.

Accepted Answer

A)  rock
B)  till
C)  sand and gravel
D)  mudE) B) and C)
F) A) and C)

Question 9

Kame terraces were originally deposited ________.

Accepted Answer

A)  under water along a floating ice shelf
B)  as a broad band behind the advancing ice front of a continental ice sheet
C)  in meltwater channels perpendicular to a melting continental ice front
D)  along the sides of a glacial valleyE) B) and D)
F) A) and C)

Question 10

________ is one of the three ways a glacier can move over its bed.

Accepted Answer

A)  Basal slip
B)  Crevassal slip
C)  Frost heaving
D)  Morainal slidingE) None of the above
F) A) and B)

Question 11

Independent of any local scale erosion or deposition, thick accumulations of ice load the crust and upper mantle ________.

Accepted Answer

A)  causing the crust to subside
B)  causing the crust to drift laterally, instigating major tectonic motions
C)  causing the crust to rise up with an immediate elastic rebound
D)  causing the crust to thrust and fold like in a mountain building eventE) B) and D)
F) B) and C)

Question 12

Sketch the velocity profiles showing the direction and relative speed of ice movement, across and beneath a valley glacier.

Accepted Answer

See fig 17.6, maximu...

Question 13

Which was not true during the height of last Ice Age?

Accepted Answer

A)  One could have walked from France to Britain.
B)  One could have walked from SE Asia to Indonesia.
C)  One could have walked or paddled a small boat from Siberia to Alaska.
D)  The continent of Atlantis was above sea level in the mid-Atlantic Ocean.E) All of the above
F) None of the above

Question 14

How can "Plate Tectonics" influence climate or contribute to major glacial cycles?

Accepted Answer

By placing large coalesced con...

Question 15

Where is the equilibrium line on a glacier?

Accepted Answer

A)  at about 150 metres depth
B)  below the zone of wastage
C)  where the zone of accumulation meets the zone of ablation
D)  beneath the terminal moraineE) All of the above
F) B) and C)

Question 16

A moraine is primarily made of ________.

Accepted Answer

A)  till
B)  outwash
C)  rock
D)  mudE) B) and D)
F) A) and B)

Question 17

What was the maximum lowering of sea level during the last Ice Age?

Accepted Answer

A)  -100 metres
B)  -20 metres
C)  -38 metres
D)  -85 metresE) All of the above
F) A) and D)

Question 18

Examine the words and/or phrases for each question below and determine the relationship among the majority of words/phrases.
-Choose the option that does not fit the pattern.

Accepted Answer

A)  drumlin
B)  cirque
C)  esker
D)  moraineE) A) and B)
F) None of the above

Question 19

The volume of the Antarctic ice sheet is about equal to the total volume of ice in all alpine glaciers of the world.

Accepted Answer

A) True 
 B)False

Question 20

What is the classical name for the oldest, Pleistocene, glacial stage of North America?

Accepted Answer

The answer of What is the classical name for the...

Exam 17: Glaciers and Glaciation

Which of the following best describes the term glacial drift?

Correct AnswerverifiedShow Answer

How can "Plate Tectonics" influence climate or contribute to major glacial cycles?

Correct AnswerverifiedBy placing large coalesced con...View AnswerShow Answer

Bowl-shaped depressions in bedrock at upstream ends of alpine glacial valleys are called ________.

Correct AnswerverifiedShow Answer

Independent of any local scale erosion or deposition, thick accumulations of ice load the crust and upper mantle ________.

Correct AnswerverifiedShow Answer

Which glacial landform was originally deposited as a fan against glacial ice or within depressions on the ice surface?

Correct AnswerverifiedShow Answer

Which process occurs where a glacier enters the sea?

Correct AnswerverifiedShow Answer

Where would you likely find glaciers that could only move by plastic flow above the bed?

Correct AnswerverifiedShow Answer

________ is one of the three ways a glacier can move over its bed.

Correct AnswerverifiedShow Answer

Examine the words and/or phrases for each question below and determine the relationship among the majority of words/phrases. -Choose the option that does not fit the pattern.

Correct AnswerverifiedShow Answer

Kame terraces were originally deposited ________.

Correct AnswerverifiedShow Answer

Sketch the velocity profiles showing the direction and relative speed of ice movement, across and beneath a valley glacier.

Correct AnswerverifiedSee fig 17.6, maximu...View AnswerShow Answer

A gently rolling layer of till called ________ is deposited as ice advanced and then retreated.

Correct AnswerverifiedShow Answer

What is the classical name for the oldest, Pleistocene, glacial stage of North America?

Correct AnswerverifiedShow Answer

Glaciers erode underlying bedrock in which two main ways?

Correct Answerverifiedplucking a...View AnswerShow Answer

An erratic is made of ________.

Correct AnswerverifiedShow Answer

What was the maximum lowering of sea level during the last Ice Age?

Correct AnswerverifiedShow Answer

Where is the equilibrium line on a glacier?

Correct AnswerverifiedShow Answer

Which was not true during the height of last Ice Age?

Correct AnswerverifiedShow Answer

A moraine is primarily made of ________.

Correct AnswerverifiedShow Answer

The volume of the Antarctic ice sheet is about equal to the total volume of ice in all alpine glaciers of the world.

Correct AnswerverifiedShow Answer

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By placing large coalesced con...
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See fig 17.6, maximu...
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plucking a...
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