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(Article of periodic en Anglais - 2004)

Document title

Evidence for freeze-thaw events and their implications for rock weathering in northern Canada

Authors(s) and Affiliation(s)

HALL K. ;

Abstract

In order to assess the weathering regime at a site in northern Canada, temperatures were collected at the surface, 1 cm and 3 cm depth for sets of paving bricks, with exposure both vertical and at 45°, orientated to the 4 cardinal directions. Temperature data were collected at 1 min intervals for 1 year. These data provide unequivocal proof for the occurrence of the freezing and thawing of water on and within the rock (freeze-thaw events). It was found that the temperature at which freezing occured varied significantly through the year. The change in freeze temperature is thought to be due to the chemical weathering of the material

Source

Article of periodic

published at : Earth surface processes and landforms / ISSN 0197-9337 / CODEN ESPLDB

Editor : Wiley, Chichester - ROYAUME-UNI (1981)

Millesime : 2004, vol. 29, no1 [pp. 43-57]

Bibliographic references : 36 ref.

Collation : Illustration ;

Language

Anglais

Localisation

Laboratoire INTERGEO - Paris

INIST-CNRS, Cote INIST : 17355

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2004.
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