esker

es·ker  (skr)

n.

A long, narrow ridge of coarse gravel deposited by a stream flowing in or under a decaying glacial ice sheet. Also called os³.

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[Irish Gaelic eiscir, from Old Irish escir.]

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esker [ˈɛskə], eskar [ˈɛskɑː -kə]

n

(Earth Sciences / Geological Science) a long winding ridge of gravel, sand, etc., originally deposited by a meltwater stream running under a glacier Also called os

[from Old Irish escir ridge]

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esker  (skr)

A long, narrow, steep-sided ridge of coarse sand and gravel deposited by a stream flowing in or under a melting sheet of glacial ice. Eskers range in height from 3 m (9.8 ft) to more than 200 m (656 ft) and in length from less than 100 m (328 ft) to more than 500 km (310 mi).

Thesaurus

Noun

1.

esker - (geology) a long winding ridge of post glacial gravel and other sediment; deposited by meltwater from glaciers or ice sheets geology - a science that deals with the history of the earth as recorded in rocks ridge - a long narrow natural elevation or striation