Mots-clés
Antarctique Calotte glaciaire Corrélation stratigraphique Eau de fonte Glaciaire Géochronologie Kame Moraine Paléo-environnement Paléoclimat Pliocène Zone froide Antarctica Cold area Geochronology Glacial features Ice sheet Kame Meltwater Moraine Palaeo-environment Palaeoclimate Pliocene Stratigraphic correlationEarly pliocene expansion of the east Antarctic ice sheet, Upper Wright Valley, Antarctica
Auteurs :BOCKHEIM, J.
MCLEOD, M.
Description :
The study area extends from the margin of the Wright Upper Glacier to the east end of the Dais and includes the Labyrinth, the Dais and the North and South Forks. The AA. suggest that a wet-based glacier overrode the area and deposited what has been mapped elsewhere as the Peleus till. The Wright Upper Glacier, an outlet glacier of the East Antarctic Ice Sheet, deposited lateral moraines and lateral-moraine segments along the north and south walls of both the North and South Forks following deposition of the Peleus till. The AA. propose a correlation of glacial deposits, and discuss the implications of the chronology on palaeoclimate reconstruction.
Type de document :
Article de périodique
Source :
Geografiska annaler. Series A. Physical geography, issn : 0435-3676, 2008, vol. 90, n°. 3, p. 187-199, nombre de pages : 13, Collation : Illustration, Références bibliographiques : 38 ref.
Date :
2008
Editeur :
Pays édition : Suede, Stockholm, Svenska sällskapet för antropologi och geografi
Langue :
Anglais
Anglais
Droits :
Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI)
Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI)