Problem 2
Studies have shown that during the Ice Age the margins of some ice sheets advanced southward from the Hudson Bay region at rates ranging from about 50 to 320 meters per year. a. Determine the maximum amount of time required for an ice sheet to move from the southern end of Hudson Bay to the south shore of present-day Lake Erie, a distance of 1,600 kilometers. b. Calculate the minimum number of years required for an ice sheet to move this distance.
Problem 3
If the budget of a valley glacier were balanced for an extended span of time, what feature would you expect to find at the terminus of the glacier? Now assume the glacier's budget changes so that wastage exceeds accumulation. How would the terminus of the glacier change? Describe the deposit you would expect to form under these conditions.
Problem 5
Are either or both of the following statements true? Explain your answer. a. Wind does its most effective erosional work in dry places. b. Wind is the most important agent of erosion in deserts.
Problem 7
Compare the sediment deposited by a stream, the wind, and a glacier. Which deposit should have the most uniform grain size? Which one would exhibit the poorest sorting? Explain your choices.
