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(Article of periodic en Anglais - 1990)

Document title

Experimental frost and salt weathering of chalk-II

Authors(s) and Affiliation(s)

JERWOOD L. C. ; ROBINSON D. A. ; WILLIAMS R. B. G. ;

Abstract

Experiments are described in which chalk cubes were soaked in solutions of either sodium chloride, sodium sulphate, or magnesium sulphate. After removal of excess liquid, the cubes were subjected to six freeze-thaw cycles with temperatures ranging from either + 15 to - 10o C or + 15 to - 30o C. The results confirm that frost weathering can be enhanced by the presence of certain salts. Evidence is presented which suggests that salt crystallization is the major weathering process operative when non-immersed samples are frozen but a combination of frost and salt weathering operates when fully immersed samples are frozen

Source

Article of periodic

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

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

Millesime : 1990, vol. 15, no8 [pp. 699-708]

Bibliographic references : 15 réf.

Language

Anglais

INIST-CNRS, Cote INIST : 17355

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