Micro‐relief on a rock glacier, Dalton range, Yukon, Canada

P. G. Johnson

Permafrost and Periglacial Processes, 1992, vol. 3, issue 1, 41-47

Abstract: The micro‐relief on the surface of a rock glacier in the Dalton Range of the southwest Yukon provides evidence of processes occurring during and after development of the rock glacier. Ridges, mounds and flow lobes are interpreted as indicators of either the continuing deformation or reactivation of an ice‐core, solifluction of the surface deposits or changes in the internal hydrological system of the rock glacier. A glacial rather than periglacial origin for the ice core is preferred. Le microrelief de la surface d'un glacier rocheux des Dalton Range au sud‐ouest du Yukon démontre l'existence de processus se produisant pendant et après le développement du glacier rocheux. Des rides, des buttes et des lobes de fluage sont interprétés comme des indicateurs de déformation continue ou de réactivation d'un noyau de glace, de solifluxion des dépǒts de surface ou des changements dans le système hydrologique interne du glacier rocheux. Une origine glaciaire plutǒt que périglaciaire est préférée pour expliquer le noyau de glace.

Date: 1992
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Persistent link: https://EconPapers.repec.org/RePEc:wly:perpro:v:3:y:1992:i:1:p:41-47

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