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(Article of periodic en Anglais - 2013)

Document title

Mapping and permafrost altitudes in a periglacial environment : the Laguna del Diamante Reserve (Central Andes, Argentina)

Authors(s) and Affiliation(s)

ALONSO V. (1) ; TROMBOTTO LIAUDAT D. (2) ;
(1) Dept. de Geología, Univ., Oviedo, ESPAGNE
(2) IANIGLA, CONICET, Mendoza, ARGENTINE

Abstract

A geomorphological map, made on an ASTER image from aerial photographs and corroborated by fieldwork, reflects how the Laguna del Diamante Reserve in the Province of Mendoza, although previously glaciated, is at present an outstanding periglacial environment with a few residual glaciers. Periglacial landforms, occurrence of ice found during fieldwork, and rockglaciers were used to make a first approach to determine permafrost altitude. Historic registers from 1951-1952 indicated a height below 3,850 m a.s.l. as lower permafrost limit. Palaeo permafrost was identified at 3,400-3,500 m a.s.l. approximately on the foot of the southern slope of the Maipo Volcano. At present, the zone, still in a paraglacial state, is characterized by intense cryodynamics and it is considered adequate to be proposed as "type region"

Source

Article of periodic

published at : Zeitschrift für Geomorphologie / ISSN 0372-8854 / CODEN ZGMPAG

Editor : Gebruder Borntraeger, Stuttgart - ALLEMAGNE (1925)

Millesime : 2013, vol. 57, no2 [pp. 171-186]

Bibliographic references : 12 ref.

Collation : 9 fig.

Language

Anglais

INIST-CNRS, Cote INIST : 8829

Digital Object Identifier

Go to electronic document thanks to its DOI : doi:10.1127/0372-8854/2012/0098

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2013
Refdoc record number (ud4) : 27624480 : Permanent link - XML version
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