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An appraisal of cryostratigraphy in north‐west Arctic Canada

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  • Hugh M. French

Abstract

Cryostratigraphy involves the recognition of discontinuities in the ice contained within frozen ground. It is supplemented by analyses of the petrography and hydrochemistry of the ice. Direct cryostratigraphic evidence includes cryostructures, thaw unconformities and truncated ice bodies. Cryostratigraphy can be used to infer permafrost and terrain conditions, Quaternary histories and regional climate changes. In the western Canadian Arctic, the utility of the cryostratigraphic approach is illustrated with reference to the occurrence of (1) an early Holocene thaw unconformity and (2) massive ground ice bodies. © 1998 John Wiley & Sons, Ltd. La cryostratigraphie comprend la reconnaissance des discontinuités que présente la glace contenue dans le sol gelé. Elle est aidée par des analyses de la pétrographie et de la chimie de la glace. Des évidences directes de cryostratigraphie sont données par des cryostructures, des discontinuités de dégel et des corps de glace tronqués. La cryostratigraphie peut être employée pour reconnaître des conditions de terrain et de pergélisol, l'histoire du Quaternaire et des changements climatiques régionaux. Dans l'Arctique canadien occidental, l'utilité de l'approche cryostratigraphique est illustrée en faisant référence à l'existence 1) d'une discontinuité due à un dégel au début de l'Holocène et 2) à des corps de glace massifs qui se trouvent dans le sol. Copyright © 1998 John Wiley & Sons, Ltd.

Suggested Citation

  • Hugh M. French, 1998. "An appraisal of cryostratigraphy in north‐west Arctic Canada," Permafrost and Periglacial Processes, John Wiley & Sons, vol. 9(4), pages 297-312, October.
    • Handle: RePEc:wly:perpro:v:9:y:1998:i:4:p:297-312
    DOI: 10.1002/(SICI)1099-1530(199810/12)9:43.0.CO;2-B
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