Mots-clés
Archipel Chili Chili du Sud Datation C 14 Fluctuation du glacier Glaciaire Moraine Paléo-environnement Paléolac Pléistocène supérieur Archipelago C 14 dating Chile Glacial features Glacier fluctuation Moraine Palaeo-environment Palaeolake Southern Chile Upper Pleistocene Archipiélago Chile Datación Carbono 14 Fluctuación del glaciar Glaciar Morrena Paleoambiente Paleolago Pleistoceno superiorLate Pleistocene ice fluctuations and glacial geomorphology of the Archipiélago de Chiloé, southern Chile
Auteur(s) et Affiliation(s)
GARCÍA, J.L.
Inst. de Geografía, Fac. de Historia, Geografía y Ciencia Política, Univ. Católica de Chile, Santiago, Chili
Description :
Paleoglacial features that occur in central Chiloé are characteristic of an ice-sheet style of glaciation, which differentiates it from a typical Alpine glacial style defined previously for the Chilean Lake District (CLD). Therefore, the Archipiélago de Chiloé represents a geographical break point where the Patagonian ice sheet (PIS) became the large ice mass that occupied the Patagonian Andes during the last glacial period (Llanquihue Glaciation). A double ice-contact slope on the east face of the Cordillera de La Costa provides evidence for the most extensive Early Llanquihue glacial advance on Isla Grande de Chiloé. The most prominent LGM advance in the area occurred at 26 000 cal yr BP, coincident with regional stadial conditions, and is defined by a big moraine along the east coast of the island.
Type de document :
Article de périodique
Source :
Geografiska annaler. Series A. Physical geography, issn : 0435-3676, 2012, vol. 94, n°. 4, p. 459-479, nombre de pages : 21, Références bibliographiques : 52 ref.
Date :
2012
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)