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(Article of periodic en Anglais - 2004)

Document title

Syngenetic permafrost growth : cryostratigraphic observations from the CRREL tunnel near Fairbanks, Alaska

Authors(s) and Affiliation(s)

SHUR Y. ; FRENCH H.M. ; BRAY M.T. ; ANDERSON D.A. ;

Abstract

This paper describes the various cryostructures and other ice bodies that can be observed within the tunnel. The AA. expand the geocryological literature by suggesting that, during syngenetic permafrost growth, there could have been episodes of localized thermokarst erosion that would have operated preferentially along ice wedges leading to the development of gullies and tunnels in the near-surface sediments. The local thaw unconformities that result are inferred by the recognition of thermokarst-cave ice (poolice), and various soil and ice pseudomorphs. These may be regarded as further characteristics of syngenetic permafrost growth

Source

Article of periodic

published at : Permafrost and periglacial processes / ISSN 1045-6740 / CODEN PEPPED

Editor : Wiley, Chichester - ROYAUME-UNI (1990)

Millesime : 2004, vol. 15, no4 [pp. 339-347]

Bibliographic references : 39 ref.

Collation : Illustration ;

Language

Anglais

Localisation

Laboratoire INTERGEO - Paris

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2005.
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