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(Article of periodic en Anglais - 1996)

Document title

On the characteristics and possible origins of ice in rock glacier permafrost

published at : High mountain geomorphology

Authors(s) and Affiliation(s)

HAEBERLI W. ; VONDER MÜHLL D. ;

Abstract

The viscous flow patterns characteristic of rock glaciers are caused by the long-term (i.e. Holocene) existence of a thick and continuous perennially frozen layer supersatured with ice. The variability over several orders of magnitude of the electrical DC resistivity indicates that the corresponding ground ice may have multiple origins. The change in DC resistivity probably reflects a) the warming of permafrost through creep movements from colder to warmer areas, and b) the replacement of high-resistivity surface and suprapermafrost ice by low-resistivity subpermafrost ice through dynamic thinning of the active layer and the permafrost

Source

Thematical fascicle

published at : Zeitschrift für Geomorphologie. Supplementband / ISSN 0044-2798

Editor : Borntraeger, Berlin ; Borntraeger, Stuttgart - ALLEMAGNE (1960)

Millesime : 1996, no 104 [pp. 43-57]

Bibliographic references : 51 ref.

Language

Anglais

Localisation

Laboratoire INTERGEO - Paris

INIST-CNRS, Cote INIST : 8829 B

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 1997.
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