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Sepiolite at a locality in the Keuper Marl of the Midlands

Published online by Cambridge University Press:  14 March 2018

P. S. Keeling
P. S. Keeling*
Affiliation:
The British Ceramic Research Association, Queen's Road, Penkhull, Stoke-on-Trent, Staffordshire
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Summary

Sepiolite has been identified in the Keuper Marl at a Midlands locality by X-ray diffraction data, electron microscopy, differential thermal analysis, and chemical analysis. It has been calculated that a sample representing 30 ft. thickness of clay may contain as much as 39 % sepiolite. Apart from sepiolite, the Keuper Marl in the area examined consists mainly of mica, quartz, calcite, and ferric oxide.

Type
Research Article
Information
Mineralogical magazine and journal of the Mineralogical Society , Volume 31 , Issue 235 , December 1956 , pp. 328 - 332
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 1956

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References

page 330 note 1 Kerr, P. F., Kulp, J. L., and Hamilton, P. K., Amer. Petroleum Inst. Res. Proj., 49, 1949, Prelim. Rep. No. 3.Google Scholar

page 331 note 1 Brindley, G. W., X-ray Identification and Structures of Clay Minerals London, 1951, chap. 8.Google Scholar

page 331 note 2 Millot, G., Géol. appl. et Production Minière, 1949, Tome 2, Nos. 2, 3, 4.Google Scholar

page 332 note 1 Wills, L. J., Palaeogeographical Atlas of the British Isles and Adjacent Parts of Europe, 1951. London: Blaekie and Sons.Google Scholar

page 332 note 2 Honeyborne, D. B., Clay Min. Bull., 1951, vol. 1, p. 150.CrossRefGoogle Scholar

page 332 note 3 Stephen, I. and MacEwan, D. M. C., ibid. p. 157.Google Scholar