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Curves for the Quantification of Mica/Smectite and Chlorite/Smectite Interstratifications by X-ray Powder Diffraction

Published online by Cambridge University Press:  02 April 2024

Katsutoshi Tomita
Affiliation:
Institute of Earth Sciences, Faculty of Science, Kagoshima University, Kagoshima, 890, Japan
Hidewo Takahashi
Affiliation:
Department of Geology, Faculty of Education, Kagoshima University, Kagoshima, 890, Japan
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Abstract

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X-ray powder diffraction intensities for many interstratified structures of mica/smectite and chlorite/smectite were calculated by changing combinations of probabilities and transition probabilities of two component layers, respectively. The calculated d-values were plotted with PMS and PSM as the axes of coordinates for mica/smectites (where M is a mica layer and S is a smectite layer). These d-values were then linked into equal d-value curves on a graph. Three equal d-value diagrams ranging from 32.5 to 24.5 Å, from 15.4 to 10.25 Å, and from 3.365 to 3.08 Å were constructed for mica/smectites. Several diagrams were also constructed for mica/glycolated-smectites and chlorite/smectites using the same techniques. PMS and PSM values of mica/smectite producing 26.8- and 12.6-Å reflections in its X-ray powder diffraction pattern were obtained from the coordinates of the intersection of the 26.8-Å line of the first diagram and the 12.6-Å line of the second diagram. The components and stacking parameters of mica/smectites and chlorite/smectites were estimated easily using these diagrams. Interstratified mica/smectites were quantified in the air-dry and glycolated states, and chlorite/smectites in the glycolated state. Stacking parameters obtained by this method agreed well with those obtained by MacEwan's method. Stacking parameters for Reichweite (R=0) and (R= 1) structures were obtained.

Type
Research Article
Copyright
Copyright © 1985, The Clay Minerals Society

References

Allegra, G., 1964 The calculation of the intensity of X-ray s diffracted by monodimensionally disordered structures Acta Crystallogr. 17 579586.CrossRefGoogle Scholar
Cradwick, P. D., 1975 On the calculation of one-dimensional X-ray scattering from interstratified material Clay Miner. 10 347356.CrossRefGoogle Scholar
Drits, V. A. and Sakharov, B. A., 1976 X-ray Structural Analysis of Mixed-Layer Minerals Moscow Acad. Sci. U.S.S.R..Google Scholar
Hendricks, S. B. and Teller, E., 1942 X-ray interference in partially ordered lattices J. Chem. Phys. 10 147167.CrossRefGoogle Scholar
Kakinoki, J. and Komura, Y., 1952 Intensity of X-ray diffraction by a one-dimensionally disordered crystal. I. General derivation in cases of the “Reichweite” S=0 and 1 J. Phys. Soc. Japan 7 3035.CrossRefGoogle Scholar
Kakinoki, J. and Komura, Y., 1954 Intensity of X-ray diffraction hy a one-dimensionally disordered crystal. II. General derivation in the case of the correlation range S=2 J. Phys. Soc. Japan 9 169176.CrossRefGoogle Scholar
Kakinoki, J. and Komura, Y., 1954 Intensity of X-ray diffraction by a one-dimensionally disordered crystal. III. The close-packed structure J. Phys. Soc. Japan 9 177183.CrossRefGoogle Scholar
Kakinoki, J. and Komura, Y., 1965 Diffraction by a one-dimensionally disordered crystal. I. The intensity equation Acta Crystallogr. 19 137147.CrossRefGoogle Scholar
Kodama, H., 1962 Interpretation of X-ray powder patterns of some hydromuscovites from Japan with reference to their alkali contents Clay Sci. 1 8999.Google Scholar
MacEwan, D. M. C., 1956 Fourier transform methods. I. A direct method of analysing interstratified mixtures Kol- loidzeitschr. 149 96108.Google Scholar
MacEwan, D. M. C., 1958 Fourier transform methods. II. Calculation of diffraction effects for different types of interstratification Kolloidzeitschr. 156 6167.Google Scholar
MacEwan, D. M. C., Ruiz Amil, A., Brown, G. and Brown, G., 1961 Interstratified clay minerals The X-Ray Identification and Crystal Structures of Clay Minerals London Mineralogical Society 393445.Google Scholar
Reynolds, R. C., 1967 Interstratified clay systems: calculation of the total one-dimensional diffraction function Amer. Mineral. 52 661672.Google Scholar
Reynolds, R. C., Brindley, G. W. and Brown, G., 1980 Interstratified clay minerals Crystal Structures of Clay Minerals and Their X-Ray Identification London Mineralogical Society 249303.CrossRefGoogle Scholar
Reynolds, R. C. and Hower, J., 1970 The nature of inter-layering in mixed-layer illite-montmorillonite Clays & Clay Minerals 18 2536.CrossRefGoogle Scholar
Sato, M., 1969 Interstratified structures Z. Kristallogr. 129 388395.CrossRefGoogle Scholar
Sato, M., 1973 X-ray analysis of interstratified structure Nendo Kagaku (Jour. Clay Soc. Japan) 13 3947.Google Scholar
Sato, M., Oinuma, K. and Kobayashi, K., 1965 Interstratified minerals of illite and montmorillonite Nature 208 179180.CrossRefGoogle Scholar
Shimoda, S., Sudo, T., Oinuma, K. and Heller, L., 1969 Differential thermal analysis curves of mica clay minerals Proc. Int. ClayConf, Tokyo, 1969, Vol. 1 Jerusalem Israel Univ. Press 197206.Google Scholar
Środoń, J., 1980 Precise identification of illite/smectite interstratifications by X-ray powder diffraction Clays & Clay Minerals 28 401411.CrossRefGoogle Scholar
Sudo, T., 1954 Long spacing at about 30 Å confirmed from certain clays from Japan Clay Miner. Bull. 2 193203.CrossRefGoogle Scholar
Sudo, T. and Shimoda, S., 1978 Clays and Clay Minerals of Japan Amsterdam Elsevier 55.Google Scholar
Takahashi, H., 1982 Electronic computer’s program for calculation of diffracted intensity by close-packed structures with stacking faults Bull. Fac. Educ. Kagoshima Univ. 34 114.Google Scholar
Tettenhorst, R. and Grim, R.E., 1975 Interstratified clays, Theoretical Amer. Mineral. 60 4959.Google Scholar
Tettenhorst, R. and Grim, R.E., 1975 Interstratified clays, Some experimental results Amer. Mineral. 60 6065.Google Scholar
Tomita, K., Yamashita, H. and Oba, N., 1969 An interstratified mineral found in altered andesite J. Japan. Assoc. Min. Pet. Econ. Geol. 61 2534.CrossRefGoogle Scholar
Walker, G. F., 1951 The X-ray Identification and Crystal Structures of Clay Minerals London Mineralogical Society 222.Google Scholar
Watanabe, T., 1981 Identification of illite/montmorillonite interstratifications by X-ray powder diffraction J. Mineral. Soc. Japan 15 3241.Google Scholar