Observations of debris-rich naled associated with a major glacier surge event, Disko Island, West Greenland

Auteurs :
YDE, J.C.
TVIS KNUDSEN, N.

Description :
During the 1995-98 surge of Kuannersuit Glacier, Disko Island, turbid winter runoff produced an extensive naled accretion with a distinct debris-rich stratification. After surge termination the summer occurrence of naledi gradually decreased and disappeared within 5 years. The fine-grained debris was deposited on top of outwash deposits on bars and banks. Observations at the margin of surrounding glaciers revealed that only surge-type glaciers in their quiescent phase had proglacial naled assemblages, although these lacked incorporated debris. This indicates that surge-type glaciers have a significant impact on the occurrence of naledi.


Type de document :
Article de périodique

Source :
Permafrost and periglacial processes, issn : 1045-6740, 2005, vol. 16, n°. 4, p. 319-325, nombre de pages : 7, Collation : Illustration, Références bibliographiques : 37 ref.

Date :
2005

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