Question 1

Glaciers flow under their own weight.

Accepted Answer

A) True 
 B)False  True

Question 2

What are glacial varves?

Accepted Answer

finely laminated, alternating light and dark layers of sediment deposited in a glacial lake

Question 3

Glacial drift refers to the poorly-sorted and unstratified sediment rafted by continental and valley glaciers.

Accepted Answer

A) True 
 B)False  False

Question 4

Glaciers move by

Accepted Answer

A)  plastic flow 
B)  basal slip 
C)  surge 
D)  A and B 
E)  all of the above 
A)  plastic flow 
B)  basal slip 
C)  surge 
D)  A and B 
E)  all of the above

Question 5

Regions adjacent to the glacial terminus in North America had a climate which was/had:

Accepted Answer

A)  very cold year-round 
B)  cold and dry year-round 
C)  cool, wet winters and short summers 
D)  dry, cool winters and short wet summers 
E)  moderate year-round. 
A)  very cold year-round 
B)  cold and dry year-round 
C)  cool, wet winters and short summers 
D)  dry, cool winters and short wet summers 
E)  moderate year-round.

Question 6

Glaciers erode bedrock because the ice is so thick and under tremendous pressure.

Accepted Answer

A) True 
 B)False

Question 7

Plucking is an erosional process that occurs due to melting and refreezing of meltwater in rock fractures.

Accepted Answer

A) True 
 B)False

Question 8

Sublimation is the loss of water by melting and infiltration at the base of the glacier TrueFalse

Accepted Answer

A) True 
 B)False

Question 9

When did the warmest post-Pleistocene interval occur?

Accepted Answer

between 8,

Question 10

What were two of the geological consequences of the 130 m drop in sea level which occurred during the maximum glacial coverage of the Great Ice Age?

Accepted Answer

accelerated and enhanced down-cutting an

Question 11

What is the significance of a dropstone found embedded in varves?

Accepted Answer

The varves indicate a low ener

Question 12

During the Pleistocene, the semiarid and arid areas of the western U.S. contained large proglacial lakes.

Accepted Answer

A) True 
 B)False

Question 13

How did glacial Lake Missoula form and why did the lake catastrophically drain?

Accepted Answer

Glacial Lake Missoula formed when a lobe

Question 14

According to the Milankovitch theory, small irregularities in Earth's rotation and orbit were sufficient to caused Pleistocene glaciation.

Accepted Answer

A) True 
 B)False

Question 15

What is a stagnant glacier? Why does a glacier become stagnant?

Accepted Answer

A stagnant glacier is one whic

Question 16

During recession, does ice flow towards the terminus or back towards the zone of accumulation? Explain.

Accepted Answer

Ice always flows from the zone of accumu

Question 17

Based on evidence from deep-sea cores, there have been at least how many warm-cold cycles since the beginning of the Pleistocene glaciation?

Accepted Answer

The answer of Based on evidence from deep-sea cores, there...

Question 18

For valley glaciers, the cirque is the zone of accumulation.

Accepted Answer

A) True 
 B)False

Question 19

Briefly contrast the climate of present-day Death Valley with that of 7,000 years ago.

Accepted Answer

Death Valley 7,000 years ago w

Question 20

What is a surging glacier?

Accepted Answer

one which suddenly a

Glaciers flow under their own weight.

What are glacial varves?

Glacial drift refers to the poorly-sorted and unstratified sediment rafted by continental and valley glaciers.

Glaciers move by

Regions adjacent to the glacial terminus in North America had a climate which was/had:

Glaciers erode bedrock because the ice is so thick and under tremendous pressure.

Plucking is an erosional process that occurs due to melting and refreezing of meltwater in rock fractures.

Sublimation is the loss of water by melting and infiltration at the base of the glacier TrueFalse

When did the warmest post-Pleistocene interval occur?

What were two of the geological consequences of the 130 m drop in sea level which occurred during the maximum glacial coverage of the Great Ice Age?

What is the significance of a dropstone found embedded in varves?

During the Pleistocene, the semiarid and arid areas of the western U.S. contained large proglacial lakes.

How did glacial Lake Missoula form and why did the lake catastrophically drain?

According to the Milankovitch theory, small irregularities in Earth's rotation and orbit were sufficient to caused Pleistocene glaciation.

What is a stagnant glacier? Why does a glacier become stagnant?

During recession, does ice flow towards the terminus or back towards the zone of accumulation? Explain.

Based on evidence from deep-sea cores, there have been at least how many warm-cold cycles since the beginning of the Pleistocene glaciation?

For valley glaciers, the cirque is the zone of accumulation.

Briefly contrast the climate of present-day Death Valley with that of 7,000 years ago.

What is a surging glacier?

Understanding Earth: A Dynamic and Evolving Planet

Plate Tectonics: A Unifying Theory

Minerals-The Building Blocks of Rocks

Igneous Rocks and Intrusive Igneous Activity

Volcanoes and Volcanism

Weathering, Erosion, and Soil

Sediment and Sedimentary Rocks

Metamorphism and Metamorphic Rocks

Geologic Time: Concepts and Principles

Earthquakes

Earths Interior

The Seafloor

Deformation, Mountain Building, and the Evolution of Continents

Mass Wasting

Running Water

Groundwater

The Work of Winds and Deserts

Shorelines and Shoreline Processes

Geology and Humanity

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Exam 17: Glaciers and Glaciation

Glaciers flow under their own weight.

What are glacial varves?

Glacial drift refers to the poorly-sorted and unstratified sediment rafted by continental and valley glaciers.

Glaciers move by

Regions adjacent to the glacial terminus in North America had a climate which was/had:

Glaciers erode bedrock because the ice is so thick and under tremendous pressure.

Plucking is an erosional process that occurs due to melting and refreezing of meltwater in rock fractures.

Sublimation is the loss of water by melting and infiltration at the base of the glacier TrueFalse

When did the warmest post-Pleistocene interval occur?

What were two of the geological consequences of the 130 m drop in sea level which occurred during the maximum glacial coverage of the Great Ice Age?

What is the significance of a dropstone found embedded in varves?

During the Pleistocene, the semiarid and arid areas of the western U.S. contained large proglacial lakes.

How did glacial Lake Missoula form and why did the lake catastrophically drain?

According to the Milankovitch theory, small irregularities in Earth's rotation and orbit were sufficient to caused Pleistocene glaciation.

What is a stagnant glacier? Why does a glacier become stagnant?

During recession, does ice flow towards the terminus or back towards the zone of accumulation? Explain.

Based on evidence from deep-sea cores, there have been at least how many warm-cold cycles since the beginning of the Pleistocene glaciation?

For valley glaciers, the cirque is the zone of accumulation.

Briefly contrast the climate of present-day Death Valley with that of 7,000 years ago.

What is a surging glacier?

Understanding Earth: A Dynamic and Evolving Planet

Plate Tectonics: A Unifying Theory

Minerals-The Building Blocks of Rocks

Igneous Rocks and Intrusive Igneous Activity

Volcanoes and Volcanism

Weathering, Erosion, and Soil

Sediment and Sedimentary Rocks

Metamorphism and Metamorphic Rocks

Geologic Time: Concepts and Principles

Earthquakes

Earths Interior

The Seafloor

Deformation, Mountain Building, and the Evolution of Continents

Mass Wasting

Running Water

Groundwater

The Work of Winds and Deserts

Shorelines and Shoreline Processes

Geology and Humanity

Filters