QUANTITATIVE MINERAL MATTER DETERMINATION IN LIGNITES USING X-RAY DLFRACTOMETRY AND POSITION SENSITIVE DETECTOR (XRD-PSD)

PDF (English)
Publiée : Ιαν 1, 2004
DOI : https://doi.org/10.12681/bgsg.16737
Σ. Παπαζησίμου
Section of Earth Materials, Department of Geology, University of Patras
Σ. Καλαϊτζίδης
Section of Earth Materials, Department of Geology, University of Patras
Résumé

Thirty lignite samples from western Péloponnèse (Greece) were examined in the Department of Mineralogy, Natural History Museum, London, using an X-Ray Diffractometer equipped with a Position Sensitive Detector (Enraf-Nonius PSD 120). Diffraction patterns acquisition time was only 5 min with the minimum interference of the organic matter. Qualitative and quantitative evaluation of the mineral matter present performed using GUFI5 Enraf-Nonius software and involved a pattern-fit stripping technique. The prevailing minerals in all the studied samples are the mixed layers of illite/smectite, quartz, muscovite and K-feldspars. The weight percentages of the mineral matter as it was calculated from the diffraction patterns display high correlation coefficient (>0.85) with the respective wt.-% of ash in 750°C for most of the samples. The low correlation coefficient (0.65) of some samples may be attributed to the very small size of the mineral crystalline particles and/or the presence of inorganic amorphous phases.

Article Details
  • Rubrique
  • Mineralogy and Crystallography
Creative Commons License

Ce travail est disponible sous licence Creative Commons Attribution - Pas d’Utilisation Commerciale 4.0 International.

Authors who publish with this journal agree to the following terms:

Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution Non-Commercial License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.

Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g. post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal. Authors are permitted and encouraged to post their work online (preferably in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work.

Téléchargements
Les données relatives au téléchargement ne sont pas encore disponibles.
Références
Βάγιας, Δ., 1994. Τεχνική έκθεση για τα αποτελέσματα των ερευνητικών εργασιών του έργου 'Κοιτασματολογική μελέτη λιγνιτών Ν. Ηλείας' 9161926 ΣΠΑΔυτ. Ελλάδας. Ι.Γ.Μ.Ε., Παράρτημα Τρίπολης, 50 σελ.
Μητρόπουλος, Δ.; Περισσοράτης, Κ.; Αγγελόπουλος, Ι. & Μπορνόβας, Ι., 1979. Γεωλογικός χάρτης της Ελλάδας, Φύλλο Κυπαρισσία, Κλίμακα 1:50.000, Ι.Γ.Μ.Ε. Αθήνα.
Aubouin, J., 1959. Contribution a Γ etude géologique de la Grece septentrional: les confins de Γ Epire de la Thessalie. Ann. Geol. Pays Hell., 10, 403p.
Aubuin, J. & Dercourt, J., 1962. Zone pre apuliene, zone Ionienne et zone du Gavrovo en Péloponnèse occidentale, BSGF 7/3: 785-794; GRSSGF, 190.
Batchhelder, M. & Cressey, G., 1998. Rapid accurate phase quantification of clay-bearing samples using a position-sensitive X-ray detector. Clays and Clay minerals, 46/2,183-194.
Bish, D.L. & Post, J.E., 1993. Modern powder diffraction. Mineralogical Society of America, Reviews in Mineralogy, 20, 369 pp.
Cressey, G. & Schofield, P.F., 1995. Rapid whole-pattern profile-stripping method for the quantification of multiphase samples. Powder Diffraction, 11/1, 35-39.
Degnan, P.J. & Robertson, A.H.F., 1998. Mesozoic-early Tertiary passive margin evolution of the Pindos ocean (NW Péloponnèse, Greece). Sedimentary Geology, 117, 33-70.
Fleury, J.J., De Wever, P., Izart, A. & Dercourt, J., 1981. Γεωλογικός χάρτης της Ελλάδας, Φύλλο Γούμερο. Κλίμακα 1:50.000, Ι.Γ.Μ.Ε., Αθήνα.
Frydas, D., 1987. Kalkiges Nannoplankton aus dem Neogen von NW-Peloponnes. N. Jb. Geol. Paläont.Mh., 5, 274-286.
Gluskoter, HJ., 1965. Electronic low temperature ashing of bituminous coal. Fuel, 44, 285-291.
Hageman, J., 1977. Stratigraphy and sedimentary history of the upper Cenozoic of the Pyrgos area (Western Peloponnesus), Greece. Ann. Geol. Pays Hell., 28, 299-333.
International Committee for Coal Petrology (ICCP), 1993. International Handbook of Coal Petrography, Supplement, Commision 1,19p.
Jacobshagen, V., 1986. Geologie von Griechenland. Borntraeger, Berlin, 363p.
Kamberis, E., loakim, Ch., Tsaila.-Monopoli, St. & Tsapralis, V., 1992. Geodynamic and palaeogeographic evolution of Western Peloponnesus (Greece) during the Neogene. Paleontologia I Evolucio, 24/25: 363-376.
Rao, C.P. & Gluskoter, H.J., 1973. Occurrence and distribution of minerals in Illinois coals. Illinois State Geological Survey Circular 476, 56p.
Renton, J.J., 1986. Semiquantitative determination of coal minerals by X-ray diffractometry. In: Vorres, K.S. eds, Mineral Matter and ash in coal. American Chemical Society Symposium Series, 301, 53-60.
Richter, D., 1976. Das Flysch-Stadium der Helleniden-Ein Überblick. Ζ. dt geol. Ges., 127, 467-483.
Rietveld, Η.M., 1969. A profile refinement method for nuclear and magnetic structures. J. Applied Crystallography, 2, 65-71.
Streif, Η., Περισσοράτης, Κ., Μητρόττουλος, Δ. & Μπορνόβας, Ι., 1982. Γεωλογικός χάρτης της Ελλάδας, Φύλλο Ολυμπία. Κλίμακα 1:50.000, Ι.Γ.Μ.Ε., Αθήνα.
Taylor, J.Ο, 1991. Computer programs for standardless quantitative analysis of minerals using the full powder diffraction profile. Powder Diffraction, 6, 2-9.
Taylor, J.C. & Matulis, CE., 1991 Absorption contrast effects in the quantitative XRD analysis of powders by full multiphase profile refinement. J. of Applied Crystalography, 24, 14-17.
Thomas, L, 1992. Handbook of Practical Coal Ceology. J. Wiley and Sons, Chichester, England, 325p.
Tsaila-Monopolis, S., loakim, C. & Kamperis, E., 1993. Biostratigraphical correlation in the Neogene and Quaternary sediments in the Katakolon oil wells {NW Péloponnèse). Memorial volume for Prof. Panagos, National Technical University of Athens, 813-828.
Ward, CR., 1974. Isolation of mineral matter from Australian bituminous coal using hydrogen peroxide. Fuel, 53,220-221.
Ward, CR., 1977. Mineral matter in the Harrisburg-Springfield (No. 5) coal member of the Carbondale Formation, Illinois basin. Illinois State Geological Survey, Circular 498, 35p.
Ward, CR., 1978. Mineral matter in Australian bituminous coal. Australasian Institute of Mining and Metallurgy. Proceedings, 267, 7-25.
Ward, CR., 1989. Minerals in bituminous coals of the Sydney basin (Australia) and the Illinois basin (USA). Int. J. Coal. Geol. 13,455-479.
Ward, CR., Spears, DA, Booth, CA., Staton, I. & Gurba, L.W., 1999. Mineral matter and trace elements in coals of the Gunnedah Basin, New South Wales, Australia. Int. J. Coal. Geol., 40, 281-308.
Ward, CR., Taylor, J.C, Matulis, CE. & Dale, L.S., 2001. Quantification of mineral matter in the Argonne Premium Coals using interacting Rietveld-based X-ray diffraction. Int. J. Coal. Geol., 46, 67-82.
Articles les plus lus par le même auteur ou la même autrice