Hostname: page-component-cd9895bd7-gxg78 Total loading time: 0 Render date: 2024-12-25T06:18:24.624Z Has data issue: false hasContentIssue false
  • English
  • Français

Structural Transformation of 2:1 Dioctahedral Layer Silicates during Dehydroxylation-Rehydroxylation Reactions

Published online by Cambridge University Press:  28 February 2024

Fabrice Muller ,
Victor Drits ,
Alain Plançon  and
Jean-Louis Robert
Fabrice Muller*
Affiliation:
ISTO, CNRS-University of Orléans, 1A rue de la Férollerie., 45071, Orléans, Cedex 2, France
Victor Drits
Affiliation:
Geological Institute of the Russian Academy of Sciences, Pyzhevsky per.7, Moscow, Russia
Alain Plançon
Affiliation:
ISTO, CNRS-University of Orléans, 1A rue de la Férollerie., 45071, Orléans, Cedex 2, France
Jean-Louis Robert
Affiliation:
ISTO, CNRS-University of Orléans, 1A rue de la Férollerie., 45071, Orléans, Cedex 2, France
*
E-mail of corresponding author: [email protected]
Rights & Permissions [Opens in a new window]

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

The structural transformation of dioctahedral 2:1 layer silicates (illite, montmorillonite, glauconite, and celadonite) during a dehydoxylation-rehydroxylation process has been studied by X-ray diffraction. thermal analysis, and infrared spectroscopy. The layers of the samples differ in the distribution of the octahedral cations over the cis- and trans-sites as determined by the analysis of the positions and intensities of the 11l, 02l reflections, and that of the relative displacements of adjacent layers along the a axis (c cos ß/a), as well as by dehydroxylation-temperature values. One illite, glauconite, and celadonite consist of trans-vacant (tv) layers; Wyoming montmorillonite is composed of cis-vacant (cv) layers, whereas in the other illite sample tv and cv layers are interstratified. The results obtained show that the rehydroxylated Al-rich minerals (montmorillonite, illites) consist of tv layers whatever the distribution of octahedral cations over cis- and trans-sites in the original structure. The reason for this is that in the dehydroxylated state, both tv and cv layers are transformed into the same layer structure where the former trans-sites are vacant.

The dehydroxylation of glauconite and celadonite is accompanied by a migration of the octahedral cations from former cis-octahedra to empty trans-sites. The structural transformation of these minerals during rehydroxylation depends probably on their cation composition. The rehydroxylation of celadonite preserves the octahedral-cation distribution formed after dehydroxylation. Therefore, most 2:1 layers of celadonite that rehydroxylate (~75%) have cis-vacant octahedra and, only in a minor part of the layers, a reverse cation migration from former trans-sites to empty octahedra occurred. In contrast, for a glauconite sample with a high content in IVA1 and VIAl the rehydroxylation is accompanied by the reverse cation migration and most of the 2:1 layers are transformed into tv layers.

Keywords

Cation MigrationCeladoniteCis-Vacant OctahedraDehydroxylationGlauconiteIlliteRehydroxylationSmectitesStructureTrans-Vacant Octahedra
Type
Research Article
Information
Clays and Clay Minerals , Volume 48 , Issue 5 , October 2000 , pp. 572 - 585
Copyright
Copyright © 2000, The Clay Minerals Society

References

Bailey, S.W. and Bailey, S.W., (1984) Crystal chemistry of the true micas Micas, Reviews in Mineralogy, Volume 13 Washington, D.C. Mineralogical Society of America 13–60.Google Scholar
Brindley, G.W. and Fripiat, J., (1976) Thermal transformations of clays and layer silicates Proceedings of International Clay Conference, 1975 Illinois, USA Applied Publishing Ltd., Wilmette 119–129.Google Scholar
Cuadros, J. and Altaner, S.P., (1998) Composition and structural features of the octahedral sheet in mixed-layer illite/smectite from bentonites European Journal of Mineralogy 10 111–124 10.1127/ejm/10/1/0111.CrossRefGoogle Scholar
Drits, V.A. and McCarty, D.K., (1996) The nature of diffraction effects from illite-smectite consisting of interstratified trans-vacant and cis-vacant 2:1 layers: A semiquantitative technique for determination of layer-type content American Mineralogist 81 852–863 10.2138/am-1996-7-808.CrossRefGoogle Scholar
Drits, V.A. Plançon, A. Sakharov, B.A. Besson, G. Tsipursky, S.I. and Tchoubar, C., (1984) Diffraction effects calculated for structural models of K-saturated montmorillonite containing different types of defects Clay Minerals 19 541–562 10.1180/claymin.1984.019.4.03.Google Scholar
Drits, V.A. Tsipursky, S.I. and Plançon, A., (1984) Application of the method for the calculation of intensity distribution to electron diffraction structural analysis Izvestiya Akademii Nauk S.S.S.R., Seriya Physica 2 1708–1713.Google Scholar
Drits, V.A. Weber, F. Salyn, A.L. and Tsipursky, S.I., (1993) X-ray identification of one-layer illite varieties: Application to the study of illite around uranium deposits of Canada Clays and Clay Minerals 41 389–398 10.1346/CCMN.1993.0410316.CrossRefGoogle Scholar
Drits, V.A. Besson, G. and Muller, F., (1995) An improved model for structural transformations of heat-treated aluminous dioctahedra 2:1 layer silicates Clays and Clay Minerals 43 718–731 10.1346/CCMN.1995.0430608.CrossRefGoogle Scholar
Drits, V.A. Salyn, A.L. and Sucha, V., (1996) Structural transformation of illite-smectite from Dolva Ves hydrothermal deposite: Dynamics and mechanisms Clays and Clay Minerals 44 181–196 10.1346/CCMN.1996.0440203.CrossRefGoogle Scholar
Drits, V.A. Dainyak, L.G. Muller, E. Besson, G. and Manceau, A., (1997) Isomorphous cation distribution in celadonites, glauconites and Fe-illites determined by infrared, Mossbauer and EXAFS spectroscopies Clay Minerals 32 153–179 10.1180/claymin.1997.032.2.01.CrossRefGoogle Scholar
Drits, V.A. Lindgreen, H. Salyn, A.L. Ylagan, R. and McCarty, D.K., (1998) Semiquantitative determination of ytrans-vacant and cis-vacant 2:1 layers in illites and illitesmectites by thermal anlysis and X-ray diffraction American Mineralogist 83 1188–1198 10.2138/am-1998-11-1207.CrossRefGoogle Scholar
Emmerich, K. Thule Madsen, E. and Kahr, G., (1999) Dehydroxylation behavior of heat-treated and steam-treated homoionic cis-vacant montmorillonites Clays and Clay Minerals 47 591–604 10.1346/CCMN.1999.0470506.CrossRefGoogle Scholar
Grim, R.E., (1968) Clay Mineralogy: International Series in the Earth and Planetary Sciences New York McGraw-Hill Book Company.Google Scholar
Grim, R.E., Bradley, W.E and Brown, G. (1951) X-ray Identification and Crystal Structures of Clay Minerals, Brindley, G.W., ed., Mineralogical Society, London, 138–172.Google Scholar
Guggenheim, S., Farmer, V.C. and Tardy, Y., (1990) The dynamics of thermal decomposition in aluminous dioctahedral 2:1 layer silicates: A crystal chemical model Proceedings of 9th International Clay Conference, Volume 2 France Strasbourg 99–107.Google Scholar
Guggenheim, S. and Koster van Groos, A.F., (1992) High-pressure differential thermal analysis (HP-DTA). II. De-hydroxylation reactions at elevated pressures in phyllosilicates Journal of Thermal Analysis 38 2529–2548 10.1007/BF01974630.CrossRefGoogle Scholar
Guggenheim, S. Chang, H.Y. and Koster van Groos, A.E., (1987) Muscovite dehydroxylation: High-temperature studies American Mineralogist 72 537–550.Google Scholar
Heller-Kallai, L. and Rozenson, I., (1980) Dehydroxylation of dioctahedral phyllosilicates Clays and Clay Minerals 28 355–368 10.1346/CCMN.1980.0280505.CrossRefGoogle Scholar
Heller-Kallai, L. Farmer, V.C. Mackenzie, R.C. Mitchell, B.D. and Taylor, H.E.W., (1962) The dehydroxylation and rehydroxylation of triphormic dioctahedral clay minerals Clay Minerals Bulletin 5 56–72 10.1180/claymin.1962.005.28.02.CrossRefGoogle Scholar
Horton, D., (1983) Argilitic alteration. Association with the amethyst vein system Illinois, USA University of Illinois, Urbana-Champaign.Google Scholar
Ivanovskaya, T.A. Tsipursky, S.I. and Yakovleva, O.V., (1989) Mineralogy of globular glauconites from Vendian and Rephean of the Ural and Siberia Litologiya Poleznye Iskopaemye 3 83–89.Google Scholar
Koster van Groos, A.E. and Guggenheim, S., (1987) High-pressure differential thermal analysis (HP-DTA) of the dehydroxylation of Na-rich montmorillonite and K-exchanged montmorillonite American Mineralogist 72 1170–1175.Google Scholar
Koster van Groos, A.E. and Guggenheim, S., (1990) Dehydroxylation of Ca- and Mg-exchanged montmorillonite American Mineralogist 74 627–636.Google Scholar
Mackenzie, R.C., (1957) The Differential Thermal Investigation of Clays London Mineralogical Society.Google Scholar
Mackenzie, R.C., (1982) Down-to-Earth Thermal Analysis: Thermal Analysis Chichester, Great Britain Wiley Heyden Ltd. 25–36.Google Scholar
Manceau, A. Lanson, B. Drits, V.A. Chategner, D. Gates, W.P. Wu, J. Huo, D. and Stucki, J.W., (2000) Oxidation-reduction mechanism of iron in dioctahedral smectites: 1. Crystal chemistry of oxidized reference nontronite American Mineralogist 85 133–152 10.2138/am-2000-0114.CrossRefGoogle Scholar
McCarty, D. and Reynolds, R.C., (1995) Rotationally disordered illite-smectites in Paleozoic K-bentonites Clays and Clay Minerals 43 271–284 10.1346/CCMN.1995.0430302.CrossRefGoogle Scholar
Muller, E. Drits, V.A. Besson, G. and Plançon, A., (2000) Dehydroxylation of Fe3+, Mg-rich dioctahedral micas. (I) Structural transformation Clay Minerals 35 491–504 10.1180/000985500546963.CrossRefGoogle Scholar
Plançon, A., (1981) Diffraction by layer structures containing different kinds of layers and stacking faults Journal of Applied Crystallography 14 300–304 10.1107/S0021889881009424.CrossRefGoogle Scholar
Reynolds, R.C. and Thompson, C.H., (1993) Illite from the Postdam Sandstone of New York, a probable noncentro-symmetric mica structure Clays and Clay Minerals 41 66–72 10.1346/CCMN.1993.0410107.CrossRefGoogle Scholar
Rozenson, J. and Heller-Kallai, L., (1980) Order-disorder phenomena accompanying the dehydroxylation of dioctahedral phyllosilicates Clays and Clay Minerals 28 391–392 10.1346/CCMN.1980.0280510.CrossRefGoogle Scholar
Sakharov, B.A. Besson, G D VA Kameneva, M.Y. Salyn, A.N. and Smoliar, B.B., (1990) X-ray study of the nature of stacking faults in the structure of glauconites Clay Minerals 25 419–435 10.1180/claymin.1990.025.4.02.CrossRefGoogle Scholar
Tsipursky, S.I. and Drits, V.A., (1984) The distribution of octahedral cations in the 2:1 layers of dioctahedral smectites studied by oblique texture electron diffraction Clay Minerals 19 177–192 10.1180/claymin.1984.019.2.05.CrossRefGoogle Scholar
Tsipursky, S.I. Kameneva, M.Y. Drits, V.A. and Konta, J., (1985) Structural transformation of Fe3 -containing 2:1 dioctahedral phyllosilicates in the course of dehydroxylation Proceedings of the 5th Conference of the European Clay Groups 569–577.Google Scholar
Udagawa, S. Urabe, K. and Hasu, H., (1974) The crystal structure of muscovite dehydroxylate Japanese Association for Mineralogy, Petrology and Geology 69 381–389.Google Scholar
Wardle, R. and Brindley, G.W., (1972) The crystal structures of pyrophyllite-1Tc and of its dehydroxylate American Mineralogist 57 732–750.Google Scholar
Zvyagin, B.B., (1967) Electron Diffraction Analysis of Clay Mineral Structures New York Plenum Press 10.1007/978-1-4615-8612-8.CrossRefGoogle Scholar
Zvyagin, B.B. Rabotnov, V.T. Sidorenko, O.V. and Kotelnikov, D.D., (1985) Unique mica consisting of noncentro-symmetric layers Izvestiya Akademii Nauk S.S.S.R., Seriya Geologiya 35 121–124.Google Scholar