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9.20: Erosion by Glaciers

Difficulty Level: Basic Created by: CK-12
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Vocabulary

abrasion

Process in which a glacier scrapes underlying rock.

arête

Sharp ridge created by cirques on two sides.

cirque

Bowl near the top of a mountain where a valley glacier begins.

glacial striations

Long, parallel scratches carved into underlying bedrock by moving glaciers.

hanging valley

Cliff where a large glacier cut off the U-shaped valley of a tributary glacier.

horn

Pointy peak created by cirques on three or more sides.

plucking

Removal of blocks of underlying bedrock as meltwater seeps into cracks and freezes.

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Difficulty Level:
Basic
Grades:
6 , 7
Date Created:
Jan 04, 2013
Last Modified:
Aug 29, 2016
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SCI.ESC.434.1.L.1