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Texture analysis of a turbostratically disordered Ca-montmorillonite

  • Luca Lutterotti , Marco Voltolini , Hans-Rudolf Wenk EMAIL logo , Kaushik Bandyopadhyay and Tiziana Vanorio
Published/Copyright: April 2, 2015
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American Mineralogist
From the journal American Mineralogist Volume 95 Issue 1

Abstract

Turbostratic disorder, consisting in a disorder in which different layers have different rotations with respect to an axis, is commonly found in montmorillonite. The effect of this kind of disorder on diffraction profiles is significant and must be taken into account, especially in quantitative phase analysis. The effect of the turbostratic disorder in textured materials has never been investigated. In the present work, we have developed a strategy to perform quantitative texture analysis on turbostratically disordered Ca-montmorillonite aggregates that were uniaxially compressed. Synchrotron diffraction images were analyzed with a Rietveld method and disordered and ordered models are compared. The method proved to be reliable and ready for further applications.

Keywords: Texture analysis; turbostratic disorder; Rietveld method; montmorillonite; synchrotron X-rays
Received: 2009-3-11
Accepted: 2009-9-14
Published Online: 2015-4-2
Published in Print: 2010-1-1

© 2015 by Walter de Gruyter Berlin/Boston

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https://doi.org/10.2138/am.2010.3238
Keywords for this article
Texture analysis; turbostratic disorder; Rietveld method; montmorillonite; synchrotron X-rays

Articles in the same Issue

  1. Metamorphic ultrahigh-pressure tourmaline: Structure, chemistry, and correlations to P-T conditions
  2. Slavikite—Revision of chemical composition and crystal structure
  3. Anisotropic elasticity of jarosite: A high-P synchrotron XRD study
  4. Tourmaline of the elbaite-schorl series from the Himalaya Mine, Mesa Grande, California: A detailed investigation
  5. Characterization of Al-Si ordering state in an alkali feldspar using atom location by channeling-enhanced microanalysis (ALCHEMI)
  6. The relative stability of stoichiometrically related natural and synthetic double salts
  7. Free energy of formation of zircon based on solubility measurements at high temperature and pressure
  8. Structure refinement of a synthetic knorringite, Mg3(Cr0.8Mg0.1Si0.1)2(SiO4)3
  9. A mineral tracer toward high-resolution dust provenance on the Chinese Loess Plateau: SEM, TEM, and sulfur isotopes of sulfate inclusions in biotite
  10. High-resolution TEM study of jimthompsonite, chesterite, and chain-width disorder in Archean ultramafic rocks from Isua, West Greenland
  11. Retrograde hydration sequence in disordered Mg amphiboles: A TEM investigation
  12. Can electron energy-loss spectroscopy (EELS) be used to quantify hydrogen in minerals from the O K edge?
  13. Texture analysis of a turbostratically disordered Ca-montmorillonite
  14. Packing systematics of the silica polymorphs: The role played by O-O nonbonded interactions in the compression of quartz
  15. Calorimetric study of the surface energy of forsterite
  16. Crystallographic texture of the magnetite-hematite transformation: Evidence for topotactic relationships in natural samples from Quadrilátero Ferrífero, Brazil
  17. Semi-ordered crystalline structure of the Santa Olalla vermiculite inferred from X-ray powder diffraction
  18. Stishovite single-crystal growth and application to silicon self-diffusion measurements
  19. Density of dry peridotite magma at high pressure using an X-ray absorption method
  20. The crystal-structure and vacancy distribution in 6C pyrrhotite
  21. Thermal modification of hematite-ilmenite intergrowths in the Ecstall pluton, British Columbia, Canada
  22. A new Al-rich hydroxylian pseudorutile from Kalimantan, Indonesia
  23. Lapeyreite, Cu3O[AsO3(OH)]2·0.75H2O, a new mineral: Its description and crystal structure
  24. High P-T phase relation of magnesian (Mg0.7Fe0.3) staurolite compositon in the system FeO-MgO-Al2O3-SiO2-H2O: Implications for prograde high-pressure history of ultrahigh-temperature metamorphic rocks
  25. Letter: Hibonite-(Fe), (Fe,Mg)Al12O19, a new alteration mineral from the Allende meteorite
  26. Letter: Ion irradiation of the TiO2 polymorphs and cassiterite
  27. Letter: Corundum + orthopyroxene ± spinel intergrowths in an ultrahigh-temperature Al-Mg granulite from the Southern Marginal Zone, Limpopo Belt, South Africa
  28. Letter: Fe3+ spin transition in CaFe2O4 at high pressure
  29. Density functional theory and Monte Carlo study of octahedral cation ordering of Al/Fe/Mg cations in dioctahedral 2:1 phyllosilicates
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