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Glacial landforms

Glacial landforms. How is a corrie formed?. Snow collects in a natural hollow on the side of a mountain. Over time, further snow collects in the hollow. This extra weight compresses the snow underneath, turning it into ice. rock lip.

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Glacial landforms

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  1. Glacial landforms

  2. How is a corrie formed? Snow collects in a natural hollow on the side of a mountain. Over time, further snow collects in the hollow. This extra weight compresses the snow underneath, turning it into ice. rock lip The hollow is deepened and widened by the corrie glacier through the processes of abrasion and plucking. This overdeepening leads to an ‘armchair’ shape characteristic of a corrie and causes a ‘rock lip’ to be formed.

  3. Formation of an arête Arêtes are ‘knife-edged’ ridges formed between two corries.

  4. Formation of a glacial trough

  5. Characteristics of a glacial trough What are the characteristics of a glacial trough? steep valley sides misfit stream hanging valley The river that flows through the valley after the ice age is described as a misfitstream. Between truncated spurs are hanging valleys which have not been eroded as deeply as the main valley. Interlocking spurs are truncatedas the glacier cuts straight through the landscape. wide and flat valley floor truncated spurs

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