Asymmetrical valleys created by the geomorphic response of rivers to strike-slip fault

Auteurs :
KE ZHANG,
KAIYU LIU,
JINCHUN YANG,

Description :
The larger rivers with higher erosional rates may widen their valleys asymmetrically downstream of strike-slip faults, rather than being beheaded or deflected. Examples are described from the Yellow River near the NE margin of the Tibetan Plateau. River beheading and asymmetrical widening are 2 end-members of a fluvial valley's response to strike-slip faulting, whereas deflection is a combination of both. Recognition of the formation of such asymmetrical valleys related to strike-slip faulting will help to understand fault activity better over longer time spans and enable a re-evaluation of many fault histories worldwide.


Type de document :
Article de périodique

Source :
Quaternary research, issn : 0033-5894, 2004, vol. 62, n°. 3, p. 310-315, nombre de pages : 6, Collation : Illustration, Références bibliographiques : 25 ref.

Date :
2004

Editeur :
Pays édition : Etats-Unis, San Diego, CA, Elsevier