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PORTAIL D'INFORMATION GÉOGRAPHIQUE

The Be 7/Pb 210 ratio as an indicator of suspended sediment age or fraction new sediment in suspension

Quantifying rates and timescales of geomorphic processes : part 2. Special issue

Auteurs :
MATISOFF, G.
WILSON, C.G.
WHITING, P.J.
HEIMSATH, A.

Description :
Presented here is a model which uses the Be 7/Pb 210 ratio in suspended sediments to determine the time since the particles were tagged by precipitation-derived radionuclides (i.e. the age of the suspended sediment). In addition, an alternative model is presented to determine the fraction of the sediment that is newly tagged. These 2 models are applied to 3 catchments (Old Woman Creek, Ohio; Weeks Bay, Alabama; and South Slough, Oregon) and yield similar findings at all 3 sites. Discussion of the results.


Type de document :
Article de monographie

Source :
Earth surface processes and landforms, issn : 0197-9337, 2005, vol. 30, n°. 9, p. 1191-1201, nombre de pages : 11, Collation : Illustration, Références bibliographiques : 46 ref.

Date :
2005

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

Langue :
Anglais
Droits :
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