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Stochastic processes of soil production and transport : erosion rates, topographic variation and cosmogenic nuclides in the Oregon Coast Range

Auteurs :
HEIMSATH, A.M.
DIETRICH, W.E.
NISHIIZUMI, K.
FINKEL, R.C.

Description :
Previous work in the Oregon Coast Range suggested that there may be a tendency locally toward equilibrium between hillslope erosion and sediment yield. Here results from a new methodology based on cosmogenic radionuclide accumulation in bedrock minerals at the base of the soil column are reported. The AA. quantify how soil production varies with sol thickness in the southern Oregon Coast Range and explore further the issue of landscape equilibrium. Apparent soil production is determined to be an inverse exponential function of soil depth. This production rate depends, however, on the degree of weathering of the underlying bedrock.


Type de document :
Article de périodique

Source :
Earth surface processes and landforms, issn : 0197-9337, 2001, vol. 26, n°. 5, p. 531-552, Collation : Illustration, Références bibliographiques : 89 ref.

Date :
2001

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

Langue :
Anglais
Droits :
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