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Geostatistical analysis of the influence of textural, mineralogical and geochemical parameters on the geotechnical behaviour of the ‘Argilas de Aveiro’ Formation (Portugal)

Published online by Cambridge University Press:  09 July 2018

C. Galhano ,
F. Rocha  and
C. Gomes
C. Galhano
Affiliation:
Departamento de Geociéncias, Universidade de Aveiro, 3810 Aveiro, Portugal
F. Rocha
Affiliation:
Departamento de Geociéncias, Universidade de Aveiro, 3810 Aveiro, Portugal
C. Gomes
Affiliation:
Departamento de Geociéncias, Universidade de Aveiro, 3810 Aveiro, Portugal
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Abstract

Textural, mineralogical and chemical parameters of clays belonging to the Upper Cretaceous ‘Argilas de Aveiro’ formation were determined and correlated, using geostatistical analysis, with some relevant geotechnical parameters. The data obtained made it possible to subdivide the region under study into distinctive sectors on the basis of geotechnical behaviour. Clay fraction content and composition control geotechnical parameters such as the expandability and the Atterberg plastic and liquid limits. A positive correlation was found between both expandability and the Atterberg plasticity index values and the total phyllosilicates, smectite, MgO and Al2O3. However, Atterberg plasticity index values were relatively independent of the diverse clay mineral assemblages.

Type
Research Article
Information
Clay Minerals , Volume 34 , Issue 1 , March 1999 , pp. 109 - 116
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 1999

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