A mathematical model to distinguish the members of the dioctahedral smectite series
- 1 March 1981
- journal article
- Published by Mineralogical Society in Clay Minerals
- Vol. 16 (1) , 81-89
- https://doi.org/10.1180/claymin.1981.016.1.06
Abstract
Statistical (Q-mode) analysis of the chemical compositions of 122 dioctahedral smectites obtained from the literature have enabled the main solid solution ranges (montmorillonite, beidellite and nontronite) to be distinguished on a triangular diagram. In the montmorillonite area, the Wyoming, Tatatilla, Otay, Chambers and Non-Ideal montmorillonite compositional ranges are identified. Certain crystallochemical features of the smectites may be correlated with different genetic environments.Keywords
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