esker

esker, long, narrow, winding ridge of stratified sand-and-gravel drift . Eskers, many miles long and resembling abandoned railway embankments, occur in Scandinavia, Ireland, Scotland, and New England they arose from deposition of sediment in the beds of streams flowing through or beneath glaciers.

The Columbia Electronic Encyclopedia, 6th ed. Copyright © 2012, Columbia University Press. All rights reserved.

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