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Erosion

Weathering, Erosion, Deposition

QuestionAnswer
Till Unsorted, unlayered sediment deposited directly by a melting glacier.
Moraine Glaciers scrape up and freeze onto rocks and soil. The ice carries the sediment along the bottom of the glacier as it flows down a valley. When the glacier melts, it drops all of the debris in place. It looks like an uneven ridge or a steep mound.
Outwash A broad, flat area of sand and gravel deposited by streams of meltwater flowing away from the front of a melting glacier.
Esker a long ridge of sand and gravel left behind by a melting glacier. They form by meltwater rivers flowing through tunnels inside a glacier. The water picks up sand and sorts it . When the ice melts away, the ice walls disappear, leaving the old riverbed.
Kettle Lake formed when a glacier moves and leaves behind a big block of ice. The meltwater streams move sand and gravel, surrounding the ice block in sediment. When the buried ice block melts, it leaves a kettle hole. Meltwater then fills the hole.
Erratic These rocks stand out because their rock type does not match the rest. The glaciers can carry them hundreds of miles and then leave them behind when the ice melts. Sizes can vary.
Created by: user-2067558
 

 



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