Erosion rates driven by channel network incision in the Bolivian Andes

Quantifying rates and timescales of geomorphic processes : part 1. Special issue

Auteurs :
SAFRAN, E.B.
BIERMAN, P.R.
AALTO, R.
DUNNE, T.
WHIPPLE, K.X.
CAFFEE, M.
HEIMSATH, A.

Description :
To define the erosion patterns in the Bolivian Andes, the AA. present 48 erosion rate estimates, derived from analysis of in situ Be 10 in quartz-bearing alluvium collected from the Upper Beni River basin. Patterns of normalized channel steepness index appear primarily to reflect tectonic patterns and transient adjustment to those patterns by channel networks. Climate and lithology do not appear to exert first-order controls on patterns of basin-averaged erosion rates in the Bolivian Andes.


Type de document :
Article de monographie

Source :
Earth surface processes and landforms, issn : 0197-9337, 2005, vol. 30, n°. 8, p. 1007-1024, nombre de pages : 18, Collation : Illustration, Références bibliographiques : 61 ref.

Date :
2005

Editeur :
Pays édition : Royaume-Uni, Chichester, Wiley