Reinterpretation of pingos in Antarctica

Auteur :
FITZSIMONS, S. J.

Description :
Pingos in Antarctica appear to be residual landforms that have formed on the surface of the moraine as the ice core has been destroyed by ablation and thermal erosion. This interpretation appears to have misinterpreted tension cracks and coherent slumping of sediment as dilation cracks and as evidence for the extrusion of a central sediment plug. Pingos on supraglacial debris have not been described from any other locations and it seems that their formation is inconsistent with the ablation of the ice core of moraines.


Type de document :
Article de périodique

Source :
Quaternary research, issn : 0033-5894, 1989, vol. 32, n°. 1, p. 114-116, Références bibliographiques : 6 réf.

Date :
1989

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