MINERALOGICAL STUDY OF INORGANIC INTERCALATED SEAMS AT ACHLADA LIGNITE DEPOSITS (NW GREECE)

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Published: Jan 1, 2007
DOI: https://doi.org/10.12681/bgsg.16744
Keywords:
Paleobotany intermontane basin TG/DTG/DTA XRD FT-IR
I. Oikonomopoulos
National Technical University of Athens, Faculty of Mining Engineering, Department of Geological Sciences
Th. Perraki
National Technical University of Athens, Faculty of Mining Engineering, Department of Geological Sciences
G. Kaouras
National Technical University of Athens, Faculty of Mining Engineering, Department of Geological Sciences
P. Antoniadis
National Technical University of Athens, Faculty of Mining Engineering, Department of Geological Sciences
Abstract

We study the inorganic intercalated horizons of "Achlada" lignite deposits in Fiorina basin combining the mineralogical study and initial palaleobotanical data. The samples were investigated by means of X-ray diffraction (XRD), thermogravimetric (TG/DTG) and differential thermal analysis (DTA) and Fourier Transform (FT-IR) spectroscopy. The clay minerals prevail in all samples, with illite being the dominant phase, kaolinite and chlorite to be the next. No smectite was found. In addition to clay minerals, the other mineral phases identified are mainly quartz and feldspars. The presence of siderite, in the majority of the samples, is also remarkable. The illite, kaolinite and chlorite percentages of the thicker inorganic horizon were correlated to the paleoenvironmental data. The classification of this particular material into appropriate ternary diagrams shows that the studied clays may be used in the production of red-stoneware products in ceramic industry. This analysis of clay minerals was made to evaluate the industrial use of clay horizons they belong to and understand their multi-dimensional role in coal-bearing process

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  • Mineralogy-Petrology-Geochemistry-Economic Geology
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References
American Society for Testing and Materials (ASTM) D 2797, 1990. Preparing coal samples for microscopical analysis by reflected light. 1990 Annual Book of ASTM Standards, Pari 26, Gaseous Fuels: Coal and Coke. ASTM, Philadelphia, PA, 270-273.
Anastopoulos, I., and Koukouzas, K., 1972. Economic geology of the southern part of the Ptolemais Lignite Basin (Macedonia, Greece), Geol. Geophys. Res., 16(1), 1-189. (in Greek)
Antoniadis, P., Vlachou, Α., Abatzi, S.M., Khanaga, P., and Riegel, W., 2001. Preliminary coalpetrographic study of the Achlada lignite deposit in the Fiorina domain, Proc. 9th Int. Congress (Athens, September 2001). Bull. Geol. Soc. Greece, XXXIV (3), 1185- 1194. (In Greek)
Balan, E., Marco Saita, Α., Mauri, F., and Calas, G., 2001. First-principles modeling of the infrared spectrum of kaolinite, Americal Mineralogist, 86, 1321-1330.
Deng, Y., White, N., and Dixon, J., 2002. Effect of Structual Stress on the Intercalation Rate of Kaolinite, Journal of Colloid andIntrface Science, 250, 379-393.
Fabbri, Β. and Fiori, C, 1985. Clays and complementary raw materials for stoneware tiles, Miner. Petrog. Acta, 29-A, 535pp.
Fiori, C, and Guarirli, G., 1990. Italian red clays for Stoneware Tile Production: Statistical study of the mineralogical composition, Industrial ceramics, 10 (4), 151-157.
Frost, R., Kristof, J., Horvath, E., and Kloprogge, J., 2000. Vibrational spectroscopy of formamide-intercalated kaolinites, Spectrochimica Acta, 56, 1191-1204.
Georgakopoulos, Α., and Valceva, S., 2000. Pétrographie characteristics of Neogene lignites from the Ptolemais and Servia basins, Northern Greece, Energy Sources, 22, 587- 602.
Kaiser, H., and Ashraf, R., 1974. Gewinnung und Präparation fossiler Sporen und Pollen sowie anderer Palynomorphae unter besonderer Betonung der Siebmethode, Geol. Jb., A 25, 85-114, Hannover.
Kalaitzidis, S., Papazisimou, S., Giannouli, Α., Bouzinos, Α., and Christanis, K., 2003. Preliminary comparative analyses of two Greek leonardites, Fuel, 82, 859-861.
Kaouras, G., 1989. Kohlepetrographische, palynologische und sedimentologische Untersuchungen der pliozänen Braunkohle von Kariochori bei Ptolemais/NW-Griechenland. PhD thesis, Univ. Göttingen, 220pp.
Madejova, J., 2002. FTIR techniques in clay mineral srudies, Vibrational Spectroscopy, 944, 1-10.
Maratos, G., 1968. Fiorina lignitiferous basin, I.G.E.Y, 41. (in Greek).
Mountrakis, D., 1983. Structural geology of the North Pelagonian zone s.l. and geotectonic evolution of the internal Hellenides, Unpublished Habilitation, University of Thessaloniki, Greece, 283pp. (in Greek).
Papanicolaou, C, Dehmer, J., and Fowler, M., 2000. Petrological and organic geochemical characteristics of coal samples from Fiorina, Lava, Moschopotamos and Kalavryta coal fields, Greece. Int. J. Coal Geol., 44, 267- 292.
Pavlides, S., 1985. Neotectonic evolution of the Fiorina - Vegoritis - Ptolemais basin (W. Macedonia, Greece), PhD thesis, Aristotle University of Thessaloniki, 265pp. (in Greek with Engl, abs)
Pavlides, S., and Mountrakis, D., 1987. Extensional tectonics of north-western Macedonia, Greece, since the late Miocene, J. Struct. Geol., 9, 385-392.
Van Jaarsveld, J., Deventer van, J., and Lukey, G., 2002. The effect of composition and termperature on the properties of fly ash- and kaolinite-based geopolymers, Chemical Engineering Journal, 89, 63-73.
Vogt, W., 1980. Makropetrographischer Flözaufbauder rheinischen Braunkohle und Brikettiereigenschaften der Lithotypen, Fortsch. Geol. Rheinland u. West/., 29, Krefeld.
Zeppos, I., Tsouflidou, S., and Liakoura, K., 1993. Preliminary report for the exploitation of lignite (xylitic) deposits at Fiorina's subbasin east margins. Public Power Corporation Δ.Λ.Ε –A.A.O. Athens, (in Greek)
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