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I.R. Studies of Some Interstratified Minerals of Mica and Montmorillonite

Published online by Cambridge University Press:  01 July 2024

S. Shimoda  and
J. E. Brydon
S. Shimoda*
Affiliation:
Soil Research Institute, Canada Department of Agriculture, Ottawa, Ontario
J. E. Brydon
Affiliation:
Soil Research Institute, Canada Department of Agriculture, Ottawa, Ontario
*
†Present address: Tokyo University of Education, Tokyo, Japan
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Abstract

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I.R. band shifts in the 830, 750 and 530 cm−1 regions that occur in interstratified layer silicates on heating were used to characterize the nature of the component layers. Two specimens showed shifts characteristic of 1 M illite and montmorillonite. Another specimen was similar to 2M illite even though the proportion of expanding layers was 0·4. The shifts for rectorite and allevardite resembled those of paragonite and 2 M illite.

Résumé

Résumé

Les déplacements des bandes infra-rouges dans les zones 830, 750 et 530 cm−1 qui se produisent pendant le chauffage de silicates à couches interstratifiées, ont été utilisés pour caractériser la nature des couches composantes. Deux spéciment ont montré des déplacements caractéristiques de 1M illite et montmoriilonite. Un autre spécimen était similaire à 2M illite, bien que la proportion des couches en expansion était de 0,4. Les déplacements pour la rectorite et l’allévardite ressemblaient à ceux de la paragonite et de l’illite 2M.

Kurzreferat

Kurzreferat

Es wurden Verschiebungen der Ultrarotbänder in den 830, 750 und 530 cm−1 Bereichen, die in zwischengeschichteten Silikaten bei der Erwärmung vorkommen, verwendet um das Wesen der Einzelschichten zu charakterisieren. Zwei Proben wiesen Verschiebungen auf, die für 1M Illit und Montmorillonit charakteristisch sind. Eine weitere Probe war ähnlich 2M Illit obwohl der Anteil an ausdehnbaren Schichten 0, 4 war. Die Verschiebungen für Rektorit und Allevardit waren ähnlich denjenigen von Paragonit und 2M Illit.

Резюме

Резюме

Смещение ИК-полос смешаннослойных силикатов при 830, 750 и 530 см−1 вследствие нагревания использовано для характеристики природы составляющих слоев. Два образца обнаружили смещения, характерные для иллита 1М и монтмориллонита. Один образец аналогичен иллиту 2М несмотря на то, что доля разбухающего компонента в нем составляет 0,4. Смещения полос для ректорита и аллевардита аналогичны смещениям полос для парагонита и иллита 2М.

Type
Research Article
Information
Clays and Clay Minerals , Volume 19 , Issue 1 , March 1971 , pp. 61 - 66
Copyright
Copyright © 1971, The Clay Minerals Society

Footnotes

*

Contribution No. 339.

‡

Oinuma, K., Shimoda, S. and Negishi. T. Unpublished data.

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