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Techniques for measuring rock weathering : application to a dated fan segment sequence in southern Tunisia

Auteurs :
WHITE, K.
BRYANT, R.
DRAKE, N.

Description :
Three techniques for measuring rock weathering are applied to a dated sequence of alluvial fan segments in southern Tunisia. Two of these techniques depend on measuring surface roughness (the micro-roughness meter and a displacement approach) and one uses the structural weakening of the rock fabric (Schmidt hammer). Schmidt hammer rebound values, standard deviation, root mean square roughness and the displacement technique show systematic changes on the three fan segments. However, the amount of variance in all datasets is very large, indicating the need for caution in application of these techniques for relative dating.


Type de document :
Article de périodique

Source :
Earth surface processes and landforms, issn : 0197-9337, 1998, vol. 23, n°. 11, p. 1031-1043, Collation : Illustration, Références bibliographiques : 58 ref.

Date :
1998

Editeur :
Pays édition : Royaume-Uni, Chichester, Wiley

Langue :
Anglais
Droits :
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