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(Article of periodic en Anglais - 2010)

Document title

Distribution and frequency of snow-avalanche debris transfer in the distal part of colluvial cones in Central North Iceland

published at : Special issue. Sedimentary fluxes and budgets in changing cold environments : quantitative analysis and scaling issues

Authors(s) and Affiliation(s)

DECAULNE A. (1 2) ; SÆMUNDSSON Þ. (3) ;
(1) GEOLAB, Univ. Blaise Pascal, Clermont-Ferrand, FRANCE
(2) GEOLAB, UMR 6042 CNRS, Clermont-Ferrand, FRANCE
(3) Natural Research Centre of North-western Iceland, Sauởárkrókur, ISLANDE

Abstract

This paper emphasizes the importance of studying diffuse rock debris accumulation in the far distal part of colluvial cones with the aim of defining the spatial distribution and frequency of extreme snow avalanches. The field based methods used in this study confirm the snow avalanche origin of these deposits. A relative age of the deposits is obtained by assessing the vegetation cover of the boulder surfaces and by measuring the rock hardness using a Schmidt hammer. The AA. conclude that there were frequent extreme snow avalanches which have occurred since the Little Ice Age, and that they have decreased in magnitude during the past decade

Source

Thematical fascicle

published at : Geografiska annaler. Series A. Physical geography / ISSN 0435-3676 / CODEN GAPGAP

Editor : Svenska sällskapet för antropologi och geografi, Stockholm - SUEDE (1965)

Millesime : 2010, vol. 92, no 2 [pp. 177-187]

Bibliographic references : 32 ref.

Collation : fig., tabl.

Language

Anglais

INIST-CNRS, Cote INIST : 2704 A

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