Evorsion

evorsion

[ē′vȯr·shən]
(geology)
The process of pothole formation in riverbeds; plays an important role in denudation.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.

Evorsion

 

erosion caused by vortices and eddies formed by falling streams of water, leading to the formation of potholes.

The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.
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References in periodicals archive ?
The cave itself has developed in a small body of crystalline metamorphic limestone, and was partly formed by flowing water, as witnessed by numerous evorsion shapes on the ceiling (Kunsky, 1930; Prosova, 1950).
The relief created by the Poozerian glacier is complicated by numerous negative depressions formed as a result of exaration, evorsion, subglacial erosion, and glaciokarst processes.
Evorsion, along with active erosion by meltwaters and accumulation of glacigenic sediments, continued in the so-called Poznan Phase (about 17 000-18 000 BP).