Exam 9: Crustal Deformation

During the peak of the last Ice Age, continental land area was larger and you could have walked across the English Channel because_________ .

Prior to its sudden emptying down the St. Lawrence around 11,000 years ago, ________was the largest lake in North America.

At what depth or thickness of ice does glacial ice make the transition from brittle fracture to plastic flow?

When did the great southern hemisphere glaciation of Pangaea occur?

During the peak of the last Ice Age circa 20,000 years ago, the total volume of glacial ice was about ________ km3 , or about ________ times its present amount

A(n)__________ is likely to host a large stream with a waterfall or steep rapids today.

How do most icebergs in the North Atlantic Ocean originate?

Which of the following best describes the term glacial drift?

Diamond- bearing kimberlites occur in the Northwest Territories, Saskatchewan and Ontario. What type of glacial deposit would be most useful for tracing kimberlite cobbles and minerals directly to their bedrock source area?

Which of the following glacial features would typically be found in close proximity?

When glaciers suddenly speed up and move at up to 100 times their normal rate, this is called a___________

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

A(n)_________ is similar in appearance to a sinkhole of a karst area.

During the maximum extent of the last Ice Age, which region remained free of ice cover?

Ice masses that entirely cover uplands and plateaus such as the islands in Nunavut or Vatnajukull in Iceland are called __________.

A(n)________ would likely be situated next to a large end moraine.

A horn is made of _________.

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

Which one of the following statements concerning glaciers is false?

A_________ is an erosional feature specifically produced by alpine glaciation.