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(Article of periodic en Anglais - 2009)

Document title

Large rockslides in the Southern Central Andes of Chile (32-34.5°S) : tectonic control and significance for Quaternary landscape evolution

Authors(s) and Affiliation(s)

ANTINAO J.L. (1) ; GOSSE J. (1) ;
(1) Earth Sciences Dep., Dalhousie Univ., Halifax, CANADA

Abstract

Most of the rockslides appear in the western Cordillera Principal and cluster along major geological structures. Variographic analyses show spatial correlation between rockslides, geological structures and shallow seismicity. A relative chronosequence was calibrated with existing 14C and 40Ar/39Ar dates and new cosmogenic nuclide exposure ages for selected rockslides. Rockslide-induced sediment yield was estimated with empirical relations for rockslide area distributions. The estimates of sediment transfer and the spatial distribution of rockslides reflect a landscape in which tectonic and geological controls on denudation are more significant than climate

Source

Article of periodic

published at : Geomorphology / ISSN 0169-555X

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

Millesime : 2009, vol. 104, no3-4 [pp. 117-133]

Bibliographic references : 2 p.

Collation : 10 fig., 6 tabl.

Language

Anglais

INIST-CNRS, Cote INIST : 21151

Digital Object Identifier

Go to electronic document thanks to its DOI : doi:10.1016/j.geomorph.2008.08.008

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