A Younger Dryas icecap in the Equatorial Andes

Auteur(s) et Affiliation(s)

CLAPPERTON, C.M.

Dept. of Geography, University of Aberdeen, Aberdeen, Scotland, Royaume-Uni

Description :
Morphologic and stratigraphic evidence shows that a late-glacial ice cap existed on part of the Eastern Cordillera of Ecuador (Lat. 0°20'S) with a mean elevation of 4200 m where none exists now. The ice cap developed in response to a surface temperature cooling of at least 3°C in the tropical Andes, a finding that is consistent with a coupled equatorial/high latitude North Atlantic climate system operating at the late-glacial/Holocene transition. These results are further evidence that Younger Dryas cooling may have been a global event.

Type de document :
Article de périodique

Source :
Quaternary research, issn : 0033-5894, 1997, vol. 47, n°. 1, p. 13-28, Collation : Illustration, Références bibliographiques : 62 ref.

Date :
1997

Editeur :
Pays édition : Etats-Unis, San Diego, CA, Elsevier

Langue :
Anglais