Genetically complex and morphologically diverse pingos in the Fish Lake area of South West Banks Island, N.W.T., Canada

Auteur(s) et Affiliation(s)



Description :
An unusually wide variety of pingo landforms located within a relatively restricted area of thick surficial sediments and permafrost is documented. Pingo growth and decay may occur independent of climatic change as witnessed by examples of embryonic, active and collapsed/collapsing features. The presence of deep kettle lakes in the area probably creates a dynamic system of interlinked taliks which influence the groundwater supply to centres of ground ice growth. All the pingos post-date the Last Glacial Maximum ice retreat and the youngest was actively growing in AD 1981.


Type de document :
Article de périodique

Source :
Geografiska annaler. Series A. Physical geography, issn : 0435-3676, 1997, vol. 79, n°. 1-2, p. 41-56, Collation : Illustration, Références bibliographiques : 43 ref.

Date :
1997

Editeur :
Pays édition : Suede, Stockholm, Svenska sällskapet för antropologi och geografi