Aspects of the genesis and geomorphology of pingos : perennial permafost mounds

Auteur :
GURNEY, S.D.

Description :
Pingos are true perennial permafrost mounds. It is generally accepted that there are 2 main types of pingos in terms of genesis : hydrostatic (closed system) and hydraulic (open system). It is here proposed that a third category of polygenetic (or mixed) pingos should also be recognized. Since suitable conditions for the formation of pure hydrostatic pingos are rarely met outside the Mackenzie Delta/Tuktoyaktuk Peninsula area the world type of pingo is most likely to be of an hydraulic or polygenetic variety and thus further investigation is warranted, particularly for the elucidation of the palaeoenvironmental inferences of relict pingos.


Type de document :
Article de périodique

Source :
Progress in physical geography, issn : 0309-1333, 1998, vol. 22, n°. 3, p. 307-324, Collation : Illustration, Références bibliographiques : 2 p.

Date :
1998

Editeur :
Pays édition : Royaume-Uni, London, Sage Publications