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(Article of periodic en Anglais - 2010)

Document title

Geochemical tracing and spatial evolution of the sediment bed load of the Romaine River, Québec, Canada

Authors(s) and Affiliation(s)

HARDY F. (1) ; BARITEAU L. (1) ; LORRAIN S. (2) ; THÉRIAULT I. (3) ; GAGNON G. (3) ; MESSIER D. (3) ; ROUGERIE J.-F. (4) ;
(1) Poly-Géo inc., Québec, St-Lambert, CANADA
(2) Environnement Illimité, Montréal, CANADA
(3) Hydro-Québec Equipement, Montréal, CANADA
(4) Hydro-Québec Production, Montréal, CANADA

Abstract

In order to characterise the present river bed load sources, sediment transport and sedimentary connectivity, a study was conducted to document the compositional continuum of the lower 300 km portion of the river. Bed load samples were collected during the late summer low water period and ICP-MS geochemical analyses of the light and heavy mineral portions were conducted. Principal component analysis of the results successfully identified a series of distinctive geochemical domains. Multivariate Euclidean distance coefficients were also calculated between consecutive samples along the river revealing major bed load compositional breaks. These results indicate a longitudinal fractionation of the bed load along the 300 km course of the river. This is further supported by the sedimentary budget calculated from the annual sedimentary input derived from erosion rates of the river banks, from sediment bed load measurements at 3 gauging stations and from calculated bed load transport capacity at these 3 locations

Source

Article of periodic

published at : Catena / ISSN 0341-8162

Editor : Catena, Cremlingen-Destedt - ALLEMAGNE (1973)

Millesime : 2010, vol. 81, no1 [pp. 66-76]

Bibliographic references : 34 ref.

Collation : 9 fig., 4 tabl.

Language

Anglais

INIST-CNRS, Cote INIST : 16767

Digital Object Identifier

Go to electronic document thanks to its DOI : doi:10.1016/j.catena.2010.01.005

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2010
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