Hostname: page-component-cd9895bd7-p9bg8 Total loading time: 0 Render date: 2024-12-18T08:19:20.857Z Has data issue: false hasContentIssue false
  • English
  • Français

Rapid, Accurate Phase Quantification of Clay-Bearing Samples using a Position-Sensitive X-Ray Detector

Published online by Cambridge University Press:  28 February 2024

Meryl Batchelder  and
Gordon Cressey
Meryl Batchelder
Affiliation:
Department of Mineralogy, The Natural History Museum, Cromwell Road, London, SW7 5BD, UK
Gordon Cressey
Affiliation:
Department of Mineralogy, The Natural History Museum, Cromwell Road, London, SW7 5BD, UK
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 rapid phase quantification method using X-ray diffraction (XRD) with a position-sensitive detector (PSD), outlined by Cressey and Schofield (1996), has been extended to facilitate mineral phase quantification of clay-bearing samples. In addition, correction factors for differences in matrix absorption effects have been calculated and applied. The method now enables mudrock mineralogy to be quantified rapidly and efficiently. Using this approach overcomes many of the problems hitherto associated with the quantitative analysis of clay minerals, in particular the effects of preferred orientation of crystallites and variable sample-area irradiation, that make the task of quantification extremely difficult by conventional Bragg-Brentano scanning diffractometry.

Keywords

Absorption CorrectionMudrocksPosition-sensitive DetectorQuantificationX-ray Diffraction
Type
Research Article
Information
Clays and Clay Minerals , Volume 46 , Issue 2 , April 1998 , pp. 183 - 194
Copyright
Copyright © 1998, The Clay Minerals Society

References

Azároff, L.V. and Buerger, M.J., 1958 The powder method New York McGraw-Hill.Google Scholar
Bish, D.L. and Howard, S.A., 1988 Quantitative phase analysis using the Rietveld method J Appl Crystallogr 21 86–91 10.1107/S0021889887009415.CrossRefGoogle Scholar
Bish, D.L. and Reynolds, R.C. Jr., 1989 Sample preparation for X-ray diffraction Modern powder diffraction 20 73–97 10.1515/9781501509018-007.CrossRefGoogle Scholar
Brindley, G.W., Brindley, G.W. and Brown, G., 1980 Quantitative X-ray mineral analysis of clays Crystal structures of clay minerals and their X-ray identification London Mineral Soc 411–438.CrossRefGoogle Scholar
Chung, F.H., 1974 Quantitative interpretation of X-ray diffraction patterns of mixtures. I. Matrix flushing method for quantitative multicomponent analysis J Appl Crystallogr 7 519–525 10.1107/S0021889874010375.CrossRefGoogle Scholar
Chung, F.H., 1974 Quantitative interpretation of X-ray diffraction patterns of mixtures. JJ. Adiabatic principle of X-ray diffraction analysis of mixtures J Appl Crystallogr 7 526–531 10.1107/S0021889874010387.CrossRefGoogle Scholar
Cressey, G. and Schofield, P.F., 1996 Rapid whole pattern profile-stripping method for the quantification of multiphase samples Powder Diff 11 35–39 10.1017/S0885715600008885.CrossRefGoogle Scholar
Foster, B.A. and Wolfel, E.R., 1988 Automated, quantitative multiphase analysis using a focussing transmission diffractom-eter in conjunction with a curved position-sensitive detector Adv X-Ray Anal 31 325–330.Google Scholar
Herman, H. and Ermrich, M., 1987 Microabsorption of X-ray intensity in randomly packed powder specimens Acta Crystallogr A43 401–405 10.1107/S0108767387099240.CrossRefGoogle Scholar
Hill, R.J. and Howard, C.J., 1987 Quantitative phase analysis from neutron powder diffraction using the Rietveld method J Appl Crystallogr 20 467–474 10.1107/S0021889887086199.CrossRefGoogle Scholar
McManus, D.A., 1991 Suggestions for authors whose manuscripts include quantitative clay mineral analysis by X-ray diffraction Marine Geol 98 1–5 10.1016/0025-3227(91)90030-8.CrossRefGoogle Scholar
Moore, D.M. and Reynolds, R.C. Jr, 1989 X-ray diffraction and the identification and analysis of clay minerals Oxford Oxford Univ Pr..Google Scholar
Smith, D.K. Johnson, G.G. Jr and Hoyle, S.Q., 1991 MATCHDB— A program for the identification of phases using a digitized diffraction-pattern database Adv X-Ray Anal 34 377–385.Google Scholar
Smith, D.K. Johnson, G.G. Jr and Jenkins, R., 1995 A full-trace database for the analysis of clay minerals Adv X-Ray Anal 38 117–125.Google Scholar
Smith, D.K. Johnson, G.G. Jr Scheible, A. Wims, A.M. Johnson, J.L. and Ullmann, G., 1987 Quantitative X-ray powder diffraction method using the full diffraction pattern Powder Diff 2 73–77 10.1017/S0885715600012409.CrossRefGoogle Scholar
Snyder, R.L. Bish, D.L., Bish, D.L. and Post, J.E., 1989 Quantitative analysis Modern powder diffraction 101–142 10.1515/9781501509018-008.CrossRefGoogle Scholar
Wilchinsky, Z.W., 1951 Effect of crystal, grain, and particle size on X-ray power diffracted from powders Acta Crystallogr 4 1–9 10.1107/S0365110X51000015.CrossRefGoogle Scholar