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Author Question: What evidence exists in either photograph that all of the visible landscape has been sculpted by ... (Read 58 times)

torybrooks

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on: Jul 16, 2018
What evidence exists in either photograph that all of the visible landscape has been sculpted by glaciers? Be as complete as possible, by describing all glacial features that you see.
 
  You may find it useful to label these features on the photographs, too.
  What will be an ideal response?

Question 2

Describe any visible differences in the amount of ice in the zones of accumulation and wastage in 1983 relative to 1955.
 
  What will be an ideal response?


jointhecircus

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Reply #1 on: Jul 16, 2018
Answer to Question 1

U-shaped valley that encloses the glacier and similar valleys visible in the background. Knife-edged ridges and pointed peaks visible along the skyline. Small hanging valleys along both sides of the glacier, but especially in the right background. Bedrock depression filled with water to form a lake.

Answer to Question 2

The toe of the glacier has receded considerably between 1955 and 1983, indicating loss of ice from the zone of wastage. Within the zone of accumulation, about the same amount of rock is exposed along the glacier edges in the background of both photos, which suggests little if any change in the zone of accumulation.


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