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Quantitative estimation of clay minerals by d.t.a.

Published online by Cambridge University Press:  09 July 2018

C. E. Davis  and
D. A. Holdridge
C. E. Davis
Affiliation:
Scientific Research Council, P.O. Box 502, Kingston, Jamaica
D. A. Holdridge
Affiliation:
Scientific Research Council, P.O. Box 502, Kingston, Jamaica
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Abstract

Studies were conducted on the feasibility of using the Dupont 900 thermal analyser for quantitative estimation of clay minerals. The results indicate that kaolinite, gibbsite, goethite and calcite can be determined quite accurately and in small concentrations provided there are no serious interferences. Quartz in excess of 5 mg or more can be determined with a reasonable degree of accuracy. Approximate estimates of montmorillonitic contents of soil clays can be made by measuring the areas of the low temperature endotherms of samples which were equilibrated over saturated Mg(NO3)2.

Type
Research Article
Information
Clay Minerals , Volume 8 , Issue 2 , December 1969 , pp. 193 - 200
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 1969

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