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General wearing away of the land; laying bare of subjacent lands.



the sum total of the processes of ablation and transportation (by water, wind, ice, or the direct action of the force of gravity) of disintegrated rock into subsided areas of the earth’s surface, where these products accumulate.

Tectonic movements have a great effect upon the rate and character of denudation. The direction of topographic development depends on the relationship between denudation and the movements of the earth’s crust. When the processes of disintegration and denudation predominate over the effect of a structural high, there is a gradual lowering of the absolute and relative elevations and a general leveling of the relief. As a result of the protracted predominance of denudation processes, entire highlands can be turned into rolling denuded plains (peneplains). Other denuded surfaces, such as pediments, pediplains, and piedmont steps are also the consequence of denudation. To a certain extent the intensity of denudation can be judged from the amount of drift carried away by rivers (up to several thousand tons a year). The term “denudation” is also sometimes used in a narrower sense to signify the processes of ablation (removal) of the products of erosion solely by planar washout.

References in periodicals archive ?
It does not comport with reason," it said, "that one will denude himself of all his earnings during a long period of years without making some provision for old age.
It said it was a powder used to kill trees and denude forests to prevent them being used for cover by Vietnamese fighters.
In the same address, the Cardinal pointed out that those who call most loudly for an "inculturation" that would denude the Christian liturgical tradition of all the trapings of European civilization would never, at the same time, call for their own exclusion from "the natural science and technology which originated in the West.
Des mouvements feministes devaient defiler, hier mardi dans l'apres-midi, depuis la place Tal'at Harb jusqu'a Dar Al Qada' (Palais de Justice), pour protester contre les images insoutenables de Hamada Saber, un quinquagenaire brutalement battu et traEne denude par la police devant le palais presidentiel.