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Electrical Resistivity Measurements on the Rock Glaciers of Grizzly Creek, St Elias Mountains, Yukon

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  • Michèle Evin
  • Denis Fabre
  • Peter G. Johnson

Abstract

Some 20 electrical resistivity soundings were performed on rock glaciers in Grizzly Creek, south‐west Yukon, to investigate the geometry of the permafrost and the amount of ice in the sediments. The technique, which has been used successfully on many rock glaciers in the Alps, indicated here that there was no extensive massive ice in the sounded rock glaciers and especially in a landform previously identified as a glacier ice‐cored rock glacier. The nature of the transition between glacier ice‐cored moraines and glacier ice exposed at the head of the landform is discussed. © 1997 John Wiley & Sons, Ltd. Quelques vingt sondages par résistivité électrique ont été réalisés sur des glaciers rocheux dans le “Grizzly Creek” situé dans le sud‐ouest du Yukon pour rechercher la géométrie du pergélisol et connâitre la quantité de glace contenue dans les sédiments. Cette technique qui a été utilisée avec succès sur de nombreux glaciers rocheux des Alpes, a montré qu'il n'y a pas de glace massive importante dans les glaciers étudiés et spécialement dans une forme identifiée précédemment comme un glacier rocheux présentant un noyau de glace. La nature de la transition entre des moraines à noyaux de glace et de la glace de glacier visible en surface est discutée. © 1997 John Wiley & Sons, Ltd.

Suggested Citation

  • Michèle Evin & Denis Fabre & Peter G. Johnson, 1997. "Electrical Resistivity Measurements on the Rock Glaciers of Grizzly Creek, St Elias Mountains, Yukon," Permafrost and Periglacial Processes, John Wiley & Sons, vol. 8(2), pages 179-189, April.
  • Handle: RePEc:wly:perpro:v:8:y:1997:i:2:p:179-189
    DOI: 10.1002/(SICI)1099-1530(199732)8:23.0.CO;2-C
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