The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.
(neutral, or atectonic, valleys), river valleys that are arranged independently of their tectonic structure. Insequent valleys are formed in regions of horizontal beddings or in regions composed of lithologically homogeneous rock.
The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.