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PORTAIL D'INFORMATION GÉOGRAPHIQUE

Constraining the timing of alluvial fan response to Late Quaternary climatic changes, southern Tunisia

Auteur(s) et Affiliation(s)

WHITE, K.
Dept. of Geography,University of Reading, Whiteknights, Reading, Royaume-Uni


Description :
The evolution of the Oued es Seffaia alluvial fan during the last 50,000 years is analyzed in the light of chronometric data deived from AMS radiocarbon and optical dating techniques. These ages have enabled the temporal constraint of the distalward progression of the intersection point (the upper limit of the locus of deposition) which has resulted in the telescopic segmentation of the fan. The data provide some evidence to suggest that fan incision and formation of telescopic segments occurs in response to changes from arid to less arid conditions.


Type de document :
Article de périodique

Source :
Geomorphology (Amsterdam), issn : 0169-555X, 1996, vol. 17, n°. 4, p. 295-304, Collation : Illustration, Références bibliographiques : 59 ref.

Date :
1996

Editeur :
Pays édition : Pays-Bas, Amsterdam, Elsevier

Langue :
Anglais
Droits :
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