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The dioctahedral analogue of vermiculite

Published online by Cambridge University Press:  14 March 2018

George Brown
George Brown*
Affiliation:
Rothamsted Experimental Station, Harpenden
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Extract

In the soil-clays of the north-west of England there occurs a mineral with a 14 Å basal spacing which resembles vermiculite but differs in important ways. The mineral is generally more abundant in the surface soils than in the lower layers but only in rare cases does it form more than a minor part of the clay fraction. The other minerals present in these clays are almost invariably mica, kaolin, quartz, chlorite and often hydrous iron oxides. In one soil however, from Moses Cocker's Farm, Rivington, Lancashire, the 14 Å mineral forms a major part of the clay fraction of the surface soil. This soil has the laboratory number La 55/4 and will be referred to as such. The mineral also occurs in smaller amounts in the clay fractions of the deeper horizons of this soil and as the surface soil is at least in part derived from the underlying material, two other samples La 55/6 and La 55/9 were also included in the study.

Type
Research Article
Information
Clay Minerals Bulletin , Volume 2 , Issue 10 , December 1953 , pp. 64 - 70
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 1953

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References

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