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Formation of alteration zones and kaolin genesis, Limnos Island, northeast Aegean Sea, Greece

Published online by Cambridge University Press:  09 July 2018

D. Papoulis*
Affiliation:
Department of Geology, University of Patras, 26 504 Patras, Greece
P. Tsolis-Katagas
Affiliation:
Department of Geology, University of Patras, 26 504 Patras, Greece

Abstract

Kaolin deposits extending over an area of ~10 km2 in the western and southern parts of Limnos Island, northeast Aegean Sea, Greece, were studied. The kaolin deposits are alteration products of volcanic rocks, mainly trachytes, trachyandesites, andesites and dacites. Study of the collected samples was carried out using X-ray powder diffraction (XRPD), scanning electron microscopy (SEM), energy-dispersive scanning electron microscopy (SEM-EDS), Fourier transform Raman spectroscopy (FT-Raman), Fourier transform infrared (FTIR) techniques and inductively-coupled plasma (ICP) bulk rock chemical analyses for major, trace and rare earth elements. The extensive alteration of the parent rocks resulted from the circulation of hydrothermal fluids through faults and fractures. The development of the various assemblages depends not only on the temperature and composition of the hydrothermal fluids but also on the distance of the rock from the fault or the channel of the ascending hydrothermal fluids.

Kaolinite, dickite, halloysite, illite, smectite and mixed-layer illite-smectite and jarosite were detected in the altered volcanic rocks forming locally various alteration zones. Smectite-rich zones and illite-rich zones are relatively infrequent. In the halloysite-rich zones, the kaolinization of feldspars is accomplished in four stages. The kaolinizaton of feldspars in the kaolinite-dickite-rich zones follows five discrete stages. In the less altered rocks, thin layers of kaolinite are formed on the surface of feldspars. With increasing kaolinization, kaolinite is developed on the surface of feldspars forming extended parallel booklets of newly formed kaolinite. In the third stage, feldspar crystals are partially altered to kaolinite booklets. As kaolinization advances, kaolinite becomes well formed and, in the most altered rocks, feldspars are partially or completely altered to dickite books, depending on the temperature of the hydrothermal fluids.

Type
Research Article
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 2008

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References

Bailey, S.W. (1990) Halloysite — a critical assessment. Pp. 8998 in: Crystal Structure and Mixed Layering of Clays. Proceedings of the 9th International Clay Conference 1989 (Farmer, V.C. and Tardy, Y., editors). Science Géologiques, Mémoire 86, Strasbourg, France.Google Scholar
Churchman, G.J. & Theng, B.K.G. (1984) Interactions of halloysites with amides: mineralogical factors affecting complex formation. Clay Minerals, 19, 161175.CrossRefGoogle Scholar
Churchman, G.J., Whitton, J.S., Claridge, G.G.C. & Theng, B.K.G. (1984) Intercalation method using formamide for differentiating halloysite from kaolinite. Clays and Clay Minerals, 32, 241248.CrossRefGoogle Scholar
Creasey, S.C. (1959) Some phase relations in hydrothermally altered rocks of porphyry copper deposits. Economic Geology, 54, 351373.Google Scholar
Davis, E. (1959) Volcanic rocks of Limnos Island. Annales Geologiques des Pays Helleniques, 11, 183 (in Greek).Google Scholar
de Souza Santos, P., de Souza Santos, H. & Brindley, G.W. (1966) Mineralogical studies of kaolinite— halloysite clays: Part IV. A platy mineral with structural swelling and shrinking characteristics. American Mineralogist, 51, 16401648.Google Scholar
Dixon, J.B. & McKee, T.R. (1974) Internal and external morphology of tubular and spheroidal halloysite particles. Clays and Clay Minerals, 22, 127137.Google Scholar
Ece, O.I. & Schroeder, A.P. (2007) Clay mineralogy and chemistry of halloysite and alunite deposits in the Turplu area, Balikesir, Turkey. Clays and Clay Minerals, 55, 1835.Google Scholar
Ece, O.I., Schroeder, A.P., Smilley, M.J. & Wampler, J.M. (2008) Acid-sulphate hydrothermal alteration of andesitic tuffs and genesis of halloysite and alunite deposits in the Biga Peninsula, Turkey. Clay Minerals, 43, 281315.Google Scholar
Frost, R.L. (1995) Fourier transform Raman spectroscopy of kaolinite, dickite and halloysite. Clays and Clay Minerals, 43, 191195.CrossRefGoogle Scholar
Frost, R.L. (1997) The structure of the kaolinite minerals — a FT-Raman study. Clay Minerals, 32, 6577.CrossRefGoogle Scholar
Fytikas, M., Giuliani, O., Innocenti, F., Manetti, P., Mazzuoli, R., Peccerillo, A. & Villari, L. (1980) Neogene volcanism of the northern and central Aegean region. Annales Geologiques des Pays Helleniques, 30, 106129.Google Scholar
Fytikas, M., Innocenti, F., Manetti, P., Mazzuoli, R., Peccerillo, A. & Villari, L. (1984) Tertiary to Quaternary evolution of volcanism in the Aegean region.. Pp. 687699 in: The Geological evolution of the Eastern Mediterranean (Dixon, J.E. & Robertson, A.H.F., editors). Special Publication, 17, Geological Society, London.Google Scholar
Harvey, C.C. (1980) A study of the alteration products of acid volcanic rocks from Northland, New Zealand. PhD dissertation, Indiana University, Bloomington, 322 pp.Google Scholar
Harvey, C.C. and Murray, H.H. (1993) The geology, mineralogy, and exploitation of halloysite clays of Northland, New Zealand. Pp. 233248 in: Kaolin genesis and utilization (Murray, H.H., Bundy, W.M. & Harvey, C.C., editors). Special Publication, 1, The Clay Minerals Society, Bloomington, Indiana, USA.Google Scholar
Harvey, C.C. & Murray, H.H. (1997) Industrial clays in the 21st century: a perspective of exploration, technology and utilization. Applied Clay Science, 11, 285310.Google Scholar
Innocenti, F., Manetti, P., Mazzuoli, R., Pertusati, P., Fytikas, M. & Kolios, N. (1994) The geology and geodynamic significance of the island of Limnos, North Aegean sea, Greece. Neues Jahrbuch für Geologie und Paläontologie, Monatshefte, part 11, 661-691.CrossRefGoogle Scholar
Inoue, A. (1995) Formation of Clay Minerals in Hydrothermal Environments. Pp. 268329 in: Clays and the Environment: Origin and Mineralogy of Clays (Velde, B., editor). Springer, Berlin.Google Scholar
Joussein, E., Petit, S., Churchman, J., Theng, B., Righi, D. & Delvaux, B. (2005) Halloysite clay minerals — a review. Clay Minerals, 40, 383426.Google Scholar
Koukouvelas, I.K. & Aydin, A. (2002) Fault structure and related basins of the North Aegean Sea and its surroundings. Tectonics, 21(5), 1046.CrossRefGoogle Scholar
Koukouvelas, I.K., Pe-Piper, G., Piper, D.J.W., Kokkalas, S. & Dolansky, L. (2005) Miocene volcanism of Limnos, NE Greece. Pp. 5354 in: Geology of Thrace and Seismotectonics of NE Aegean Sea. Samothrace, 2-4 September 2005. Samothrace, Greece.Google Scholar
Kunze, G.W. & Bradley, W.F. (1964) Occurrence of a tabular halloysite in a Texas soil. Pp. 523528 in: Proceedings of the 12th National Conference on Clays and Clay Minerals 1963 (Bradley, W.F., editor). Clays and Clay Minerals, 19, Pergamon Press, Oxford, UK.Google Scholar
Lueth, V.W., O., Rye, R. & Peters, L. (2005) ‘Sour gas’ hydrothermal jarosite: ancient to modern acid—sulfate mineralization in the southern Rio Grande Rift. Chemical Geology, 215, 339360.Google Scholar
Murray, H.H., Harvey, C.C. & Smith, J.M. (1977) Mineralogy and geology of the Maungaparerua halloysite deposit in New Zealand. Clays and Clay Minerals, 25, 15.CrossRefGoogle Scholar
Noro, H. (1986) Hexagonal platy halloysite in an altered tuff bed, Komaki City, Aichi Prefecture, central Japan. Clay Minerals, 21, 401415.CrossRefGoogle Scholar
Papoulis, D. & Kalampounias, A. (2008) Naturally produced anatase nanostructured films during the hydrothermal alteration of biotite. Nanotechnology and Applications. NANA 2008, 157-162.Google Scholar
Papoulis, D. & Tsolis-Katagas, P. (2001) Kaolinization process in the rhyolitic rocks of Kefalos, Kos Island, Aegean Sea, Greece. Pp. 867874 in: Proceedings of the 9th International Congress, Athens, Greece, Bulletin of the Geological Society of Greece, XXXIV, 3.Google Scholar
Papoulis, D., Tsolis-Katagas, P. & Katagas, C. (2004a) Monazite alteration mechanisms and depletion measurements in kaolins. Applied Clay Science, 24, 271285.CrossRefGoogle Scholar
Papoulis, D., Tsolis-Katagas, P. & Katagas, C. (2004b) Progressive stages in the formation of kaolin minerals of different morphologies in the weathering of plagioclase. Clays and Clay Minerals, 52, 275286.Google Scholar
Papp, A. (1953) Erläuterung zur Geologie der Insel Lemnos. Annales géologiques des pays helléniques, 5, 125.Google Scholar
Pe-Piper, G. & Piper, D.J.W. (2002) The Igneous Rocks of Greece. The Anatomy of an Orogen. Gebrüder Borntraeger, Berlin, Stuttgart.Google Scholar
Roser, B., Kimara, J.-I. & Hisatomi, K. (2000) Wholerock elemental abundances in sandstones and mud rocks from the Tanebe Group, Kii Peninsula, Japan. Geoscience Report of Shimane University, 19, 101112.Google Scholar
Rousssos, N., Katsaounis, A., Tsaila-Monopoli, S., Ioakeim X, Karadasi, S. & Davi, E. (1993) Geological Map of Limnos Island. IGME, Greece.Google Scholar
Russell, J.D. & Fraser, A.R. (1994) Infrared methods. Pp. 1167 in: Clay Mineralogy: Spectroscopic and Chemical Determinative Methods (Wilson, M.J., editor). Chapman & Hall, London.Google Scholar
Swindale, L.D. & Hughes, R. (1968) Hydrothermal association of pyrophyllite, dickite, kaolinite and quartz in the Coromandel area, New Zealand. New Zealand Journal of Geology and Geophysics, 11, 11631174.Google Scholar
Tazaki, K. (1982) Analytical electron microscopic studies of halloysite formation processes: morphology and composition of halloysite. Pp. 573584 in: Proceedings of the 7th International Clay Conference 1981 (Van Olphen, H. and Veniale, F., editors). Developments in Sedimentology, 35, Elsevier.Google Scholar
Utada, M. (1980) Hydrothermal alteration related to igneous acidity in Crétacéous and Neogene formations of Japan. Mining Geology of Japan, Special Issue, 12, 7992.Google Scholar
Voudouris, P. & Skarpelis, N. (1998) Epithermal goldsilver mineralizations at Perama (Thrace) and Lemnos Island [in Greek, English abstract]. Bulletin of the Geological Society of Greece. 32, 3, 125-135.Google Scholar
Wada, S.I. & Mizota, C. (1982) Iron-rich halloysite (10A) with crumpled lamellar morphology from Hokkaido, Japan. Clays and Clay Minerals. 30, 315317.CrossRefGoogle Scholar
White, D.E. (1957) Thermal waters of volcanic origin. Bulletin of the Geological Society of America, 68, 16371658.CrossRefGoogle Scholar
Zimbelman, D.R., Rye, R.O. & Breit, G. (2005) Origin of secondary sulfate minerals in active andesitic stratovolcanoes. Chemical Geology, 215, 3760.Google Scholar