Random variation of fabric eigenvalues : implications for the use of a-axis fabric data to differentiate till facies

Auteurs :
BENN, D.I.
RINGROSE, T.J.

Description :
In this paper, the degree of statistical variance in fabric data for 2 types of subglacial till from Breidamerkurjøkull, Iceland. The experiments show that, for each till type, the observed between-sample variability in the fabrics lies within the boundaries associated with random variations, indicating that the observed range of fabric shapes within each till type is likely to be entirely the product of sampling effects. The results suggest that great care should be exercised when using a-axis fabric data to differentiate sedimentary facies, or to infer subtle differences in physical processes or conditions.


Type de document :
Article de périodique

Source :
Earth surface processes and landforms, issn : 0197-9337, 2001, vol. 26, n°. 3, p. 295-306, Collation : Illustration, Références bibliographiques : 32 ref.

Date :
2001

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