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Analysis of illite-smectite interstratification

Published online by Cambridge University Press:  09 July 2018

C. E. Corbató
Affiliation:
Department of Geology and Mineralogy, Ohio State University, Columbus, Ohio 43210, USA
R. T. Tettenhorst
Affiliation:
Department of Geology and Mineralogy, Ohio State University, Columbus, Ohio 43210, USA

Abstract

A new approach to understanding illite-smectite interstratification is formulated which incorporates the concepts of interparticle diffraction and elementary illite particles. The analysis shows that nearest-neighbour ordering, non-nearest-neighbour ordering, ordering at the illite end of the composition scale, and the lack of ordering at the smectite end can be explained by expandable interfaces between elementary, i.e. two silicate layers, and larger illite particles. Ordering in I/S clays is significant only when the probability of occurrence of illite is ∼80%. New concepts proposed are an order parameter (ω) and an expansion parameter (β). Interparticle diffraction implies that I/S clays are unusual among all crystalline materials since their XRD size is equal to or larger than the size of their constituent physically separable particles.

Type
Research Article
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 1987

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References

Ahn, J.H. & Peacor, D.R. (1986) Transmission and analytical electron microscopy of the smectite-to-illite transition. Clays Clay Miner. 34, 165179.Google Scholar
Bethke, C.M. & Altaner, S.P. (1986) Layer-by-layer mechanism of smectite illitization and application to a new rate law. Clays Clay Miner. 34, 136145.Google Scholar
Bethke, C.M., Vergo, N. & Altaner, S.P. (1986) Pathways of smectite illitization. Clays Clay Miner. 34, 125 135.Google Scholar
Braide, S.P. & Huff, W.D. (1986) Clay mineral variation in Tertiary sediments from the eastern flank of the Niger Delta. Clay Miner. 21, 211224.Google Scholar
Gilkes, R.J. & Hodson, F. (1971) Two mixed-layer mica-montmorillonite minerals from sedimentary rocks. Clay Miner. 9, 125137.Google Scholar
Hower, J., Eslinger, E.V., Hower, M.E. & Perry, E.A. (1976) Mechanism of burial metamorphism of argillaceous sediment: Mineralogical and chemical evidence. Bull. Geol. Soc. Amer. 87, 725737.Google Scholar
Jagodzinski, H. (1949) Eindimensionale fehlordnung in kristallen und ihr einfluss auf die röntgeninterferenzen. I. Berechnung des fehlordnungsgrades aus der röntgenintensitaten. Acta Crys. 2, 201207.Google Scholar
Kakinoki, J. & 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.Google Scholar
Kakinoki, J. & Komura, Y. (1954) Intensity of X-ray diffraction by a one-dimensionally disordered crystal. II. General derivation in the case of the correlation range S≥2. J. Phys. Soc. Japan. 9, 169176.Google Scholar
McHardy, W.J., Wilson, M.J. & Tait, J.M. (1982) Electron microscope and X-ray diffraction studies of filamentous illitic clay from sandstones of the Magnus Field. Clay Miner. 17, 2339.Google Scholar
Nadeau, P.H. (1985) The physical dimensions of fundamental clay particles. Clay Miner. 20, 499514.Google Scholar
Nadeau, P.H., Tait, J.M., McHardy, W.J. & Wilson, M.J. (1984a) Interstratified XRD characteristics of physical mixtures of elementary clay particles. Clay Miner. 19, 6776.Google Scholar
Nadeau, P.H., Wilson, M.J., McHardy, W.J. & Tait, J.M. (1984b) Interparticle diffraction: a new concept for interstratified clays. Clay Miner. 19, 757769.Google Scholar
Nadeau, P.H., Wilson, M.J., McHardy, W.J. & Tait, J.M. (1985) The conversion of smectite to illite during diagenesis: evidence from some illitic clays from bentonites and sandstones. Mineral. Mag. 49, 393400.Google Scholar
Perry, E. & Hower, J. (1970) Burial diagenesis in Gulf Coast pelitic sediments. Clays Clay Miner. 18, 165177.Google Scholar
Perry, E.A. & Hower, J. (1972) Late-stage dehydration in deeply buried pelitic sediments. Bull. Am. Assoc. Petrol. Geol. 56, 20132021.Google Scholar
Ramseyer, K. & Boles, J.R. (1986) Mixed-layer illite/smectite minerals in Tertiary sandstones and shales, San Joaquin Basin, California. Clays Clay Miner. 34, 115124.Google Scholar
Reynolds, R.C. (1980) Interstratified clay minerals. Pp. 249303 in: Crystal Structures of Clay Minerals and their X-ray Identification (Brindley, G. W. & Brown, G., editors). Mineralogical Society, London.Google Scholar
Reynolds, R.C. & Hower, J. (1970) The nature of interlaying in mixed-layer illite-montmorillonites. Clays Clay Miner. 18, 2536.Google Scholar
Roberson, H.E. & Lahann, R.W. (1981) Smectite to illite conversion rates: effects of solution chemistry. Clays Clay Miner. 29, 129135.Google Scholar
Środoń, J. (1984) X-ray powder diffraction identification of illitic materials. Clay Miner. 32, 337349.CrossRefGoogle Scholar
Środoń, J. & Eberl, D.D. (1984) Illite. Pp. 495544 in: Reviews in Mineralogy. Micas (Bailey, S. W., editor). Mineralogical Society of America 13, Chelsea, Michigan, U.S.A. Google Scholar
Środoń, J., Morgan, D.J., Eslinger, E.V., Eberl, D.D. & Karlinger, M.R. (1986) Chemistry of illite/smectite and end-member illite. Clay Miner. 34, 368378.Google Scholar
Tettenhorst, R. & Grim, R.E. (1975) Interstratified clays. I. Theoretical. Am. Miner. 60, 4959.Google Scholar