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Erosion by Glaciers. Like flowing water, flowing ice erodes the land and deposits the material elsewhere. Glaciers cause erosion in two main ways: plucking and abrasion. Plucking is the process by which rocks and other sediments are picked up by a glacier. They freeze to the bottom of the glacier and are carried away by the flowing ice.
1 Glacial erosion forms when glaciers sculpt, carve and carry away the land beneath them. 2  Glacial deposition is created by deposition, or what a glacier leaves as it retreats or melts away. 3  A glacier's weight and movement, can re-shape the landscape. ( 4 this takes hundreds or thousands of years).