Modelling climate, topography and palaeoglacier fluctuations in the Chilean Andes

Auteur(s) et Affiliation(s)



Description :
A one-dimensional flowline model driven by equilibrium line altitude (ELA) lowering is used to investigate the effect of basin geometry on the dynamics of 2 palaeoglaciers, Puyehue and Rupanco, which occupied adjacent valleys in southern Chile. Model results are compared with the glacial geomorphology of the areas concerned. Specifically are investigated: the amplitude of the climatic deterioration necessary to reproduce the glacial maximum position of the 2 palaeoglaciers; the effect of valley geometry on the sensitivity and response of the palaeoglaciers; the varying response of the 2 palaeoglaciers as expressed in the depositional sequence.


Type de document :
Article de périodique

Source :
Earth surface processes and landforms, issn : 0197-9337, 1997, vol. 22, n°. 1, p. 79-92, Collation : Illustration, Références bibliographiques : 41 ref.

Date :
1997

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