The problem of channel erosion into bedrock

Functional geomorphology. Landform analysis and models

Auteurs :
SEIDL, M.A.
DIETRICH, W.E.
SCHMIDT, k.h.

Description :
The AA. present a testable framework for the study of fluvial incision into bedrock that combines theory with field observation. They quantify a simple erosion law by measuring drainage areas and slopes on both principal channels and tributaries. The results suggest three general mechanisms by which bedrock channels erode: 1) vertical wearing of the channel bed due to stream flow; 2) scour by periodic debris flows; and 3) knickpoint propagation. Consequently, application of a single erosion law to the entire bedrock channel network may be inappropriate.


Type de document :
Article de monographie

Source :
Catena. Supplement (Giessen), issn : 0722-0723, 1992, n°. 23, p. 101-124, Collation : Illustration, Références bibliographiques : 44 réf.

Date :
1992

Editeur :
Pays édition : Allemagne, Cremlingen, Catena-Verlag Rohdenburg