Evolution of the Bonneville shoreline scarp in west-central Utah : comparison of scarp-analysis methods and implications for the diffusion model of hillslope evolution

Auteurs :
PELLETIER, J.D.
DELONG, S.B.
AL-SUWAIDI, A.H.
CLINE, M.
LEWIS, Y.
PSILLAS, J.L.
YANITES, B.

Description :
The purpose of this study was to further examine the influence of scarp height, texture and microclimate in an attempt to calibrate a nonlinear model of scarp evolution. To do this, over 150 profiles of the Bonneville shoreline in the adjacent Snake and Tule Valleys, west-central Utah were collected and analysed by fitting the entire scarp profile to diffusion-equation solutions, taking into account uncertainty in the initial scarp angle. In contrast to previous studies, this analysis revealed no evidence for nonlinearity or microclimatic control.


Type de document :
Article de périodique

Source :
Geomorphology (Amsterdam), issn : 0169-555X, 2006, vol. 74, n°. 1-4, p. 257-270, nombre de pages : 14, Collation : Illustration, Références bibliographiques : 36 ref.

Date :
2006

Editeur :
Pays édition : Pays-Bas, Amsterdam, Elsevier