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long, narrow, winding ridge of stratified sand-and-gravel driftdrift,
deposit of mixed clay, gravel, sand, and boulders transported and laid down by glaciers. Stratified, or glaciofluvial, drift is carried by waters flowing from the melting ice of a glacier.
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. 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.
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The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.



a long, narrow ridge composed of horizontally or, more often, obliquely stratified sand, gravel, and pebbles and of boulders. Eskers are usually not longer than 40 km but occasionally exceed 500 km. Their width varies between several meters and 2 to 3 km, and their height can reach several dozen meters. Eskers are deposits left by meltwater flowing through valleys and tunnels that have been cut through a glacier. They are found in areas of Quaternary, or Anthropogenic, continental glaciation in Sweden, Finland, and the northern European part of the USSR.



the general name for aggradation glaciofluvial land-forms that formed within glaciers, such as oses, kames, and kame terraces. Some foreign scientists, such as R. Flint, use the term “esker” as a synonym for os.

The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.


A sinuous ridge of constructional form, consisting of stratified accumulations, glacial sand, and gravel. Also known as asar; eschar; eskar; osar; serpent kame.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
The NTGS-led work at ZIP included the collection of 115 esker and till samples which are planned to be processed for kimberlitic indicator minerals, base metals indicator minerals, gold grains, grain size distribution, clast characterization and ICP analyses.
Rock voles were obtained in each of the first 6 y (1984-1989 and subsequently through 2011) on three of the four eskers, and one or more adult females were secured at each site in three or four of the first 6 y.
2) are areal stratotype for the corresponding stratigraphic unit (Palivere Stade), where classical glaciofluvial deltas, marginal eskers, and typical grey till with a specific content of indicator boulders from SW Finland are present (Raukas 1992a).