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9.21: Deposition by Glaciers

Difficulty Level: Basic Created by: CK-12
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Vocabulary

drumlin

Long, low hill of till deposited by a glacier that points in the direction the glacier went.

esker

Sinuous ridge of sediment deposited by meltwater beneath a glacier.

glacial erratic

Large boulder with a different rock type or origin from the surrounding bedrock.

glacial till

Any unsorted sediment deposited by glacial ice.

kettle lake

Lake that forms when a chunk of ice in glacial till melted.

moraine

Linear deposit of unsorted, rocky material on, under, or left behind by glacial ice.

varve

Paired deposit of light-colored, coarser sediments and darker, fine-grained sediments, deposited in a glacial lake, that represent an annual cycle.

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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.434.2.L.1