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Holocene yardangs in volcanic terrains in the southern Andes, Argentina

Auteurs :
INBAR, M.
RISSO, C.

Description :
The aim of this paper is to report on yardangs in the Payun Matru Volcanic Field, a semiarid area east of the southern Andes mountains, and to analyse the geomorphic fators for their formation, and their relationship to the upper Pleistocene and Holocene lava flow events in the area. The yardang development is explained by the strong unidirectional winds, the poor vegetational cover due to the aridity of the region, the available quartz sand and volcanic ash particles as abrasive agents, and the volcanic lithology texture and flow structure.


Type de document :
Article de périodique

Source :
Earth surface processes and landforms, issn : 0197-9337, 2001, vol. 26, n°. 6, p. 657-666, Collation : Illustration, Références bibliographiques : 24 ref.

Date :
2001

Editeur :
Pays édition : Royaume-Uni, Chichester, Wiley

Langue :
Anglais
Droits :
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