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Kaolinization of the Kimolos Island volcanics, Cyclades, Greece

Published online by Cambridge University Press:  09 July 2018

P. Tsolis-Katagas  and
M. Mavronichi
P. Tsolis-Katagas
Affiliation:
Department of Geology, University of Patras, 26110 Patras, Greece
M. Mavronichi
Affiliation:
Department of Geology, University of Patras, 26110 Patras, Greece
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Abstract

Primary kaolins, related to Pliocene-Pleistocene volcanic rocks of acid to intermediate composition from the southern part of Kimolos island contain kaolinite and quartz ± cristobalite. Smectite is rarely present whereas alunite is common and more prevalent than baryte or gypsum. The kaolinites show structural disorder (Hinckley indices ranging from 0·6 to 1·1) and contain faults along the c*-axis. The elements Nb, Th, Ce and Sr, La, V constitute two groups with a strong intercorrelation and the kaolins are enriched in these elements compared to the parent rocks. K, Rb, Y and Ba are positively correlated with feldspar content and decrease with the intensity of kaolinization. The mineral assemblages suggest a zonal pattern which is thought to be related to different types of hydrothermal alteration. Starting from the triple point of the alunite-K-feldspar-K-mica-quartz association encountered in Kimolos, a tentative path is presented showing the approximate ranges in concentrations of K2SO4 and H2SO4 required for the formation of the various mineral assemblages.

Type
Research Article
Information
Clay Minerals , Volume 24 , Issue 1 , March 1989 , pp. 75 - 89
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 1989

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References

Alietti, A. & Brigatti, M.F. (1982) Some Grecian montmorillonites and the crystal chemistry of the smectite family. Miner. Petrogr. Acta 26, 39–47.Google Scholar
Barberi, F., Innocenti, F., Marinelli, G., Mazzuoli, R. (1974) Vulcanismo et tettonica a placche: esempi nell'area Mediterranea. Mem. Soc. Geol. IV, 13–2, 327–358.Google Scholar
Bensus, Y. & Mosser, C. (1976) Les groupes a intercorrelations positives: une methode statistique pour determiner la repartition des elements chimiques entre les phases constitutives d'une roche. C.R. Acad. Sc. Paris 283, 587–590.Google Scholar
Bornovas, J. & Rondogianni-Tsiambaou. Th. (1983) Geological Map of Greece. 1:500.000. IGME, Athens.Google Scholar
Brindley, G.W., Chih-Chun Kao, Harrison, J.L., Lipsicas, M. & Raythatha, R. (1986) Relation between structural disorder and other characteristics of kaolinites and dickites. Clays Clay Miner. 34, 239–249.CrossRefGoogle Scholar
Brown, G.C., Hughes, D.J. & Esson, J. (1973) New XRF data retrieval techniques and their application to U.S.G.S. standard rocks. Chem. Geol. 11, 223–229.CrossRefGoogle Scholar
Cases, J.M., Lietard, O., Yvon, J. & Delon, J.F. (1982) Etude de proprietes cristallochimiques, morphologiques, superficielles de kaolinites desordonnees. Bull. Mineral. 105, 439–455.Google Scholar
Fytikas, M., Giuliani, O., Innocenti, F., Marinelli, G. & Mazzuoli, R. (1976) Geochronological data of recent magmatism of the Aegean Sea. Tectonophysics 31, 29–34.Google Scholar
Fytikas, M. (1977) Geological and geothermal study of Milos island. Geol. Geoph. Res. 18, 228 pp.Google Scholar
Guinier, A. (1956) Theorie et Technique de la Radiocristallographie, pp. 462–465. Dunod Ed., Paris.Google Scholar
Hemley, J.J. & Jones, W.R. (1964) Chemical aspects of hydrothermal alteration with emphasis on hydrogen metasomatism. Econ. Geol. 59, 538–569.CrossRefGoogle Scholar
Hemley, J.J., Hostetler, P.B., Gude, A.J. & Mountjoy, W.T. (1969) Some stability relations of alunite. Econ. Geol. 64, 599–612.Google Scholar
Hinckley, D.N. (1963) Variability in crystallinity values among the kaolin deposits of the coastal plain of Georgia and South Carolina. Clays Clay Miner. 11, 229–235.Google Scholar
Hogg, C.S., Malden, P.J. & Meads, R.E. (1975) Identification of iron containing impurities in natural kaolinites using the Mossbauer effect. Mineral. Mag. 40, 89–96.Google Scholar
Keller, J. (1982) Mediterranean island arcs. Pp. 307–325 in : Andesites: Orogenic Andesites and Related Rocks. (Thorpe, R. S., editor). John Wiley & Sons, New York.Google Scholar
Knight, J.E. (1977) A thermochemical study of alunite, enargite, luzonite, and tennantite deposits. Econ. Geol. 72, 1321–1336.Google Scholar
Kolmer, H. (1975) Geochemical aspects of genesis of kaolinite, alunite and silica minerals in the vicinity of the trass deposits. Mineral. Deposita 10, 249–253.Google Scholar
Lietard, O. (1977) Contribution a Yetude despropietes physicochimiques, cristallographiques et morphologiques des kaolins. These Doc. Sci. Phys. Nancy, France.Google Scholar
Marinos, G. (1960) The Antimilos Volcano in the Aegean Sea. Bull. Geol. Soc. Greece IV, 38–50 (in Greek).Google Scholar
Menopoulos, P.A. (1980) Bentonitic deposits of Kimolos island; discovery of clinoptilolite of sedimentary origin. Unpubl. Rep. IGME, Athens (in Greek).Google Scholar
Menopoulos, P.A. (1981) Study on the industrial minerals of the Poliaigos and Kimolos islands. Unpubl. Rep. IGME, Athens (in Greek).Google Scholar
Mestdagh, M.M., Vielvoye, L. & Herbillon, A.J. (1980) Iron in kaolinite II. The relationship between kaolinite crystallinity and iron content. Clay Miner. 15, 1–13.Google Scholar
Mestdagh, M.M., Herbillon, A.J., Rodrique, L. & Rouxhet, G. (1982) Evaluation du role due fer structural sur la cristallinite des kaolinites. Bull. Mineral. 105, 457–466.Google Scholar
Pe, G.G. (1978) Cenozoic volcanism of Greece. In: Volcanoes and Volcanology (Fairbridge, R., editor).Google Scholar
Plançon, A. & Tchoubar, C. (1977a) Determination of structural defects in phyllosilicates by X-ray powder diffraction. I. Principle of calculation of the diffraction phenomenon. Clays Clay Miner. 25, 430–435.Google Scholar
Plançon, A. & Tchoubar, C. (1977b) Determination of structural defects in phyllosilicates by X-ray powder diffraction. II. Nature and proportion defects in natural kaolinites. Clays Clay Miner. 25, 436–450.Google Scholar
Robertson, R.H.S. (1986) Fullers Earth: a History of Calcium Montmorillonite, pp. 42–53, p. 258 & ch. 49. Voltuma Press, Hythe, UK.Google Scholar
Sonder, R. (1925) Zur Geologie und Petrographie der Inselgruppe von Milos. Zeitschr. Vulcanol. 8 (1924/25): 181–229.Google Scholar
Tchoubar, C., Plançon, A., Ben Brahim, J., Clinard, C. & Sow, C. (1982) Caracteristiques structurales des kaolinites desordonnees. Bull. Mineral. 105, 477–491.Google Scholar
Tsolis-Katagas, P. (1983) Investigation of kaolin deposits associated with extrusive rocks in Lesvos island, Greece. N. Jb. Miner. Abh. 146, 182–196.Google Scholar
Wiewiora, A. & Szpila, K. (1976) Primary kaolins from Strzelin-Strzegom Region, Lower Silesia, Poland. Schriftenr. geol. Wiss. 5, 276–291.Google Scholar
Winchester, J.A. & Floyd, P.A. (1977) Geochemical discrimination on different magma series and their differentiation products using immobile elements. Chem. Geol. 20, 325–343.Google Scholar