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Author Question: During the Wisconsin Episode Glaciation, a glacial forebulge formed just off the coast of British ... (Read 55 times)

jCorn1234

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on: Jul 15, 2018
During the Wisconsin Episode Glaciation, a glacial forebulge formed just off the coast of British Columbia in the vicinity of Queen Charlotte Island. What is a glacial forebulge and how did this one form?
 
  What will be an ideal response?

Question 2

Land on the margins of continents that is presently under water would have been exposed to the atmosphere during glaciations because sea level would have been dozens of meters lower at that time.
 
  Indicate whether this statement is true or false.


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maaaaaaaaaa

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Reply #1 on: Jul 15, 2018
Answer to Question 1

Answer: A glacial forebulge forms when a massive ice sheet pushes down on the crust. This pushes down on the upper mantle, which responds by moving mantle material away from the glacier and out in front of the ice sheet where the pressure is less. As a result, the mantle bulges upward along the margins of the glacial ice.

Answer to Question 2

Answer: TRUE


jCorn1234

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Reply 2 on: Jul 15, 2018
Wow, this really help

momolu

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Reply 3 on: Yesterday
Excellent

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