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Experimental formation of chlorites from montmorillonite1

Published online by Cambridge University Press:  14 March 2018

S. Caillère  and
S. Hénin
S. Caillère
Affiliation:
Muséum National d'Histoire Naturelle, Paris. Laboratoire des Sols, Versailles
S. Hénin
Affiliation:
Muséum National d'Histoire Naturelle, Paris. Laboratoire des Sols, Versailles
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Extract

One of the problems which occupy the mineralogist as well as the geologist or pedologist is the mechanism of the formation and evolution of minerals in nature. In this general connexion we have been trying to clarify the possibility of passing from montmorillonite to chloritic minerals. Already in a previous work we showed that on precipitating magnesium with ammonia in the presence of montmorillonite, a substance is obtained which shows certain of the characteristics of vermiculite and chlorite. Having thus shown the possibility of passing from one type to the other, we wished to clarify the mechanism of the change. We wanted to know what are the conditions of the transformation, and then to follow the montmorillonite from the moment when it was in equilibrium with the solution of magnesium chloride to the end of the alteration. Finally, it had to be established to what extent the product obtained resembled or differed from the standard minerals. These different points will be considered in succession.

Type
Research Article
Information
Mineralogical magazine and journal of the Mineralogical Society , Volume 28 , Issue 205 , June 1949 , pp. 612 - 620
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 1949

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Footnotes

1

Read August 27, 1948, at the meeting of the Clay Minerals Group at the International Geological Congress, London, under the title: S. Caillère, Expérience sur la formation et l'évolution des chlorites et vermiculites. (Internat. Geol. Congr., Volume of Titles and Abstracts, 1948, p. 127.) Translated by Dr. D. M. C. MacEwan.

References

page 612 note 2 Caillère, S. and Hénin, S., Compt. Rend. Acad. Sci. Paris, 1947, vol. 224, p. 53. [M.A. 10–368.]Google Scholar

page 613 note 1 MacEwan, D. M. C., Trans. Faraday Soc., 1948, vol. 44, p. 349.CrossRefGoogle Scholar

page 613 note 2 Kayser, F. and Moth, J. M., Compt. Rend. Acsd. Sci. Paris, 1948, vol. 226, p. 251.Google Scholar

page 616 note 1 J. Orcel, S. Caillère and S. Hénin, Compt. Rend. Congrès Soc. Savants, Strasbourg, 1947 (in the press).