downcutting

(redirected from Erosional downcutting)

downcutting

[′dau̇n‚kəd·iŋ]
(geology)
Stream erosion in which the cutting is directed in a downward direction.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
Erosional downcutting in lower order riparian ecosystems: have historical changes been caused by the removal of beaver?
The size and rates of erosional downcutting of individual straths differ from one structural unit to another irrespective of climatic or lithologic controls, implying neotectonic influences (Starkel, 1994; Schumm, 1986; Blum and Tornqvist, 2000; Brocard and van der Beek, 2006).
The rates of erosional downcutting of strath terraces changed between 0.02 to 2 mm /yr, increasing in the Late Pleistocene and Holocene in the western portion of the Outer Western Carpathians (OWC), when intensive erosion was restricted to neotectonically active elevations truncated by the Raba and Dunajec river valleys (Zuchiewicz, 1984, 1995, 1998; Wojcik, 1989; Olszak, 2008).
Rates of Quaternary uplift, estimated from erosional downcutting of individual straths, changed from 0.05 to 0.72 mm/yr, attaining in the Holocene ca.
Deformations of Pleistocene straths combined with intense erosional downcutting appear to indicate Pleistocene surface uplift of the axial part of the Beskid Sadecki Mts., part of the most strongly elevated neotectonic structure in the Polish OWC (cf.