Question #8cdd5
1 Answer
Here are some quotes and information from "Physical Geography" , by Peterson, Sack and Gabler, Edition 10.
Explanation:
"The processes of erosion, transportation, and deposition by glaciers ... leave a distinctive stamp on a landscape." p. 535
"Landform evidence of past glaciations includes broad, trough-shaped valleys ... ." p.538
"Whether it is an alpine glacier carving out a trough-shaped valley or a continental glacier gouging our the basins of the North American Great Lakes, the work done by glaciers is impressive." p. 542
Glaciers pick up "rock fragments of all sizes", from sediment and small particles "to giant boulders". p. 542
"... sediment deposited directly by moving ice is [called] till ."
"[Alpine] Glacial abrasion leaves striations -- linear scratches, grooves, and gouges--where sharp-edged rocks scrape across bedrock. ... Striations indicate direction of ice flow ... ."p. 544
Here is some more information:
A small [Alpine] glacier can leave amphitheater-shaped depressions called cirques. If lakes form in cirques after the ice disappears, the lakes are called tarns .
"Landforms constructed from glacial deposits ... are [called] moraines ."
So, we have: U-shaped valleys, grooves cut into bedrock, the Great Lakes, small lakes called tarns, large boulders sitting where they look out of place, moraines, piles of till.
Those should be a good start.
