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(Article of periodic en Anglais - 2002)

Document title

Study of weathering processes developed on old piedmont surfaces in Western Spain : new contributions to the interpretation of the Raña profiles

Authors(s) and Affiliation(s)

MOLINA BALLESTEROS E. ; CANTANO MARTÍN M. ;

Abstract

The Hercynian basement of the Iberian Peninsula was uplifted by the Alpine orogeny during the Tertiary. It gave rise to a set of block mountains and tectonic grabens, one of which is the Ciudad Rodrigo Basin. The sediments filling this graben are of continental origin, their ages ranging from Palaeogene to Quaternary. Morphologically, the southern part of this basin forms a set of piedmont surfaces (the Raña surfaces) appearing above the terrace system of the present rivers. This paper examines the weathering processes developed over these old piedmont surfaces using micromorphological, XR diffraction, scanning electron microscopy (SEM) and microporosity techniques

Source

Article of periodic

published at : Geomorphology / ISSN 0169-555X

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

Millesime : 2002, vol. 42, no3-4 [pp. 279-292]

Bibliographic references : 38 ref.

Collation : Illustration ;

Language

Anglais

INIST-CNRS, Cote INIST : 21151

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2003.
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