An interstratified illite-smectite from Denchworth series soil in weathered Oxford Clay
- 9 July 1974
- journal article
- Published by Mineralogical Society in Clay Minerals
- Vol. 10 (3) , 173-187
- https://doi.org/10.1180/claymin.1974.010.3.04
Abstract
The very fine (0.33K0.29(Al1.41Fe0.34Mg0.26)(Si3.60Al0.40)O11. Computer-simulated diffraction patterns showed that experimental patterns are best matched when an average diffracting packet consists of between 4 and 5 2:1 layer silicate units. Correction of the chemical composition for external exchangeable ions associated with such small packets gives non-expanding interlayers a charge density of 0·69K/Si4O11 and expanding interlayers one of 0·57M+/Si4O11. The relationship between these values and those of mica and regularly expanding minerals is briefly discussed.Keywords
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