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(Article of periodic en Anglais - 2005)

Document title

Biotic and abiotic processes on granite weathering landforms in a cryotic environment, Northern Victoria Land, Antarctica

published at : In honour of Professor Emeritus Hugh M. French : papers from the joint Meeting of the Canadian Geomorphology Research Group and l'Association Québécoise pour l'Etude du Quaternaire, May 2004. Special Issue

Authors(s) and Affiliation(s)

GUGLIELMIN M. ; CANNONE N. ; STRINI A. ; LEWKOWICZ A.G. ;

Abstract

A multidisciplinary study was carried out to understand the interactions between biotic and abiotic processes in granite weathering in ice-free areas of Northern Victoria Land. Examples of tafoni, pits and grooves were analysed, focusing on their morphometry, infills, weathering rind types and vegetation patterns. Surface and subsurface temperatures and incoming radiation were measured to characterize microclimatic conditions. In addition, microscopic, SEM and X-ray diffraction analyses of granite were carried out. These analyses indicate that, under present conditions, mechanical weathering is the main process active in the formation of tafoni, which post-date pits and grooves

Source

Thematical fascicle

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

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

Millesime : 2005, vol. 16, no 1 [pp. 69-85]

Bibliographic references : 64 ref.

Language

Anglais

Localisation

Laboratoire INTERGEO - Paris

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