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Ice Erosion & Deposition
10.3 Notes Ice Erosion & Deposition
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10.3 Erosion & Deposition by Ice
glacier – an enormous mass of moving ice (it moves because gravity pulls it downhill) iceberg – a big block of ice floating in the ocean that broke off of a glacier U-shaped valleys – forms when a glacier erodes a river valley. The valley changes from its original V shape to a U shape cirques – are bowl-shaped depressions where glacial ice cuts back into the mountain walls
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10.3 Erosion & Deposition by Ice
horns – sharp, pyramid-shaped peaks that form when three or more cirque glaciers erode a mountain aretes – jagged ridges that form between two or more cirques that cut into the same mountain hanging valleys – small glacial valleys that join the deeper main valley. Many hanging valleys form waterfalls after the ice is gone (melted)
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