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(Article of periodic en Anglais - 1997)

Document title

Quantitative study of piping processes in badland areas of the Ebro Basin, NE Spain

published at : Special issue, piping erosion

Authors(s) and Affiliation(s)

GUTIÉRREZ M. (1) ; SANCHO C. ; BENITO G. ; SIRVENT J. ; DESIR G. ;
(1) Dep. Ciencias de la Tierra, Fac. Ciencias, Zaragoza, ESPAGNE

Abstract

In the Ebro Basin, piping is an ubiquitous erosion process in badland areas, occuring in 2 main situations : on slopes of exposed Tertiary clays and in recently incised silty-clay Holocene valley-fill sediments. The quantitative importance of the main factors controlling piping processes in those conditions was obtained by statistical analysis based on multiple and stepwise regressions. Piping erosion is strongly related to a high sodium absorption ratio (SAR) which favours clay dispersion, and is always related to high crack density and high topographic gradient

Source

Thematical fascicle

published at : Geomorphology / ISSN 0169-555X

Editor : Elsevier, Amsterdam - PAYS-BAS (1987)

Millesime : 1997, vol. 20, no 3-4 [pp. 237-253]

Bibliographic references : 22 ref.

Language

Anglais

INIST-CNRS, Cote INIST : 21151

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 1998.
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