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Clay mineralogy and chemistry of halloysite and alunite deposits in the Turplu area, Balikesir, Turkey

Published online by Cambridge University Press:  01 January 2024

Ö. Işik Ece  and
Paul A. Schroeder
Ö. Işik Ece*
Affiliation:
The University of Georgia, Department of Geology, Athens, GA 30602-2501, USA Istanbul Technical University, Faculty of Mines, Department of Geological Sciences, Mineralogy-Petrography Division, Maslak 34469 Istanbul, Turkey
Paul A. Schroeder
Affiliation:
The University of Georgia, Department of Geology, Athens, GA 30602-2501, USA
*
*E-mail address of corresponding author: ece@itu.edu.tr
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Abstract

A field-mapping and crystal-chemical study of two alunite- and halloysite-rich deposits in the Turplu area, situated northwest of Balıkesir on the Biga Peninsula of northwest Turkey reveals a mineralogically diverse and a potentially economic clay deposit. The mineral assemblage along fault zones is dominated by halloysite and sometimes alunite. The alunite is nearly end-member in composition (a = 6.995 Å, c = 17.195 Å) often occurring with a minor Ca phosphate phase. Of the two deposits studied, the more northerly mine contains more alunite relative to halloysite. Geochemical alteration indices suggest that the northern mine has experienced a slightly greater degree of hydrothermal modification. Halloysite is found in both hydrated and dehydrated states and assumes a tubular morphology. Observations by transmission and scanning electron microscopy are consistent with a model of halloysite dehydration, where the shapes transform from an open-hole tubular morphology to a closed-hole unfurled morphology.

Mineral paragenesis includes the effects of initial deposition of volcanic tuffs and andesite on top of karstic terrain. The contact between altered volcanics and underlying limestones is irregular and appears to have provided a mechanism to flush both hydrothermal and meteoric waters through the volcanics. Periods of hydrothermal alteration (hypogene) contemporaneous with extensional and strike-slip faulting have resulted in alunite and halloysite deposits. Hydrothermal alteration is concentrated near the fault zones. Because of subsequent weathering (supergene) away from the fault zones, much of the andesitic volcanic rocks have been altered to a more smectite-rich and kaolinite-bearing assemblage. The deposits continue to be both plastically deformed in the alunite/halloysite regions and to undergo brittle deformation in the saprolitized volcanics. Tectonic deformation has mixed the contacts, such that limestone blocks are entrained into parts of the alteration zones. Gibbsite and gypsum are common weathering products associated with limestone block inclusions. Genetic models for the origins of alunite-halloysite deposits in NW Turkey should consider as possible influencing factors the underlying lithologies, the extent of hydrothermal alteration, and recent weathering by meteoric fluids. In the case of the Turplu deposits, karstic limestones, hydrothermal circulation of sulfate-rich waters, and a post-alteration history of meteoric weathering were all important factors in their formation.

Keywords

Acid-sulfate Thermal WatersAlunite DepositsBiga PeninsulaCryoSEMGeochemistryHalloysite DepositsHRTEMHydrothermal AlterationHypogene vs. SupergeneSEM
Type
Research Article
Information
Clays and Clay Minerals , Volume 55 , Issue 1 , February 2007 , pp. 18 - 35
Copyright
Copyright © 2007, The Clay Minerals Society

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References

Altaner, S.P. Ylagan, R.F. Savin, S.M. Aronson, J.L. Belkin, H.E. and Pozzuoli, A., (2003) Geothermometry, geochronology, and mass transfer associated with hydrothermal alteration of a rhyolitic hyaloclastite from Ponza Island, Italy Geochimica et Cosmochimica Acta 67 275–288 10.1016/S0016-7037(02)01077-3.CrossRefGoogle Scholar
Altunkaynak, and Yılmaz, Y., (1998) The Mount Kozak magmatic complex, Western Anatolia Journal of Volcanology and Geothermal Research 85 211–231 10.1016/S0377-0273(98)00056-0.CrossRefGoogle Scholar
Altunkaynak, and Yılmaz, Y., (1999) The Kozak Pluton and its emplacement Geological Journal 34 257–274 10.1002/(SICI)1099-1034(199907/09)34:3<257::AID-GJ826>3.0.CO;2-Q.3.0.CO;2-Q>CrossRefGoogle Scholar
Bozzola, J.J. and Russell, L.D., (1999) Electron Microscopy. Principles and Techniques for Biologists Boston, Massachusetts, USA Jones and Bartlett Publishers 670 pp.Google Scholar
Churchman, G.J., (1990) Relevance of different intercalation tests for distinguishing halloysite from kaolinite in soils Clays and Clay Minerals 38 591–599 10.1346/CCMN.1990.0380604.CrossRefGoogle Scholar
Churchman, G.J. Whitton, J.S. and Claridge, G.G.C., (1984) Intercalation method using formamide for differentiating halloysite from kaolinite Clays and Clay Minerals 32 241–248 10.1346/CCMN.1984.0320401.CrossRefGoogle Scholar
Ciesla, K. and Rudnicki, R., (1993) Thermal-decomposition of Ca10(PO4)6(OH)2 at ambient-pressure in air and in nitrogen Polish Journal of Chemistry 67 2103–2111.Google Scholar
Davidson, J.P., Harmon, R.S. and Worner, G. (1991) The source of central Andean magmas: some considerations. Pp. 233–243 in: Andean Magmatism and its Tectonic Setting (Harmon, R.S. and Rapela, C., editors). Geological Society of America Special Paper, 265.CrossRefGoogle Scholar
Dill, H.G., (2001) The geology of aluminium phosphates and sulphates of the alunite group minerals: a review Earth Science Reviews 53 35–93 10.1016/S0012-8252(00)00035-0.CrossRefGoogle Scholar
Dill, H.G. Bosse, H.R. Henning, K.H. Fricke, A. and Ahrendt, H., (1997) Mineralogical and chemical variations in hypogene and supergene kaolin deposits in a mobile fold belt, the Central Andes of northwestern Peru Mineralium Deposita 32 149–163 10.1007/s001260050081.CrossRefGoogle Scholar
Dixon, J.B. and McKee, T.R., (1974) Internal and external morphology of tubular and spheroidal halloysite particles Clays and Clay Minerals 22 127–137 10.1346/CCMN.1974.0220118.CrossRefGoogle Scholar
Ece, I. and Nakagawa, Z., (2003) Alteration of volcanic rocks and genesis of kaolin deposits in Şile Region, northern Istanbul, Turkey. Part II. Differential mobility of elements Clay Minerals 38 529–550 10.1180/0009855033840113.CrossRefGoogle Scholar
Freeman, T., (1999) Procedure in Field Geology Malden, Massachusetts, USA Blackwell Science, Inc. 95 pp.Google Scholar
Genç, C., (1998) Evolution of the Bayramiç magmatic complex, northwestern Anatolia Journal of Volcanology and Geothermal Research 85 233–249 10.1016/S0377-0273(98)00057-2.CrossRefGoogle Scholar
Grant, J.A., (1986) The isocon diagram — A simple solution to Gresen’s equation for metasomatic alteration Economic Geology 81 1976–1982 10.2113/gsecongeo.81.8.1976.CrossRefGoogle Scholar
Gresens, R.L., (1967) Composition-volume relationships of metasomatism Chemical Geology 2 47–55 10.1016/0009-2541(67)90004-6.CrossRefGoogle Scholar
Harris, N.B.W. Pearce, J.A. Tindle, A.G., Coward, M.P. and Ries, A.C., (1986) Geochemical characteristics of collision-zone magmatism Collision Tectonics London Geological Society 67–81.Google Scholar
Harris, N.B.W. Kelley, S. and Okay, A.I., (1994) Post-collision magmatism and tectonics in northwest Anatolia Contributions to Mineralogy and Petrology 117 241–252 10.1007/BF00310866.CrossRefGoogle Scholar
Hurst, V.J. and Pickering, S.M., (1997) Origin and classification of coastal plain kaolins, southeastern USA, and the role of groundwater and microbial action Clays and Clay Minerals 45 274–285 10.1346/CCMN.1997.0450215.CrossRefGoogle Scholar
Jambor, J.L., (1999) Nomenclature of the alunite supergroup The Canadian Mineralogist 37 1323–1341.Google Scholar
Joussein, E. Petit, S. Churchman, J. Theng, B. Righi, D. and Delvaux, B., (2005) Halloysite clay minerals — a review Clay Minerals 40 383–426 10.1180/0009855054040180.CrossRefGoogle Scholar
Karacık, Z. and Yılmaz, Y., (1998) Geology of the ignimbrites and the associated volcano-plutonic complex of the Ezine area, northwestern Anatolia Journal of Volcanology and Geothermal Research 85 251–264 10.1016/S0377-0273(98)00058-4.CrossRefGoogle Scholar
Kohyama, N. Fukushima, K. and Fukami, A., (1978) Observation of the hydrated form of tubular halloysite by an electron microscope equipped with an environmental cell Clays and Clay Minerals 26 25–40 10.1346/CCMN.1978.0260103.CrossRefGoogle Scholar
Küçük, A. and Gülaboğlu, M.S., (2002) Thermal decomposition of Saphane alunite ore Industrial Engineering and Chemical Resources 41 6028–6232 10.1021/ie020104d.CrossRefGoogle Scholar
Okay, A.I. Siyako, M. and Burkan, K.A., (1991) Geology and tectonic evolution of the Biga Peninsula, northwest Turkey Bulletin of Istanbul Technical University 44 191–256.Google Scholar
Okay, A.I. Demirbağ, E. Kurt, H. Okay, N. and Kuşçu, I., (1999) An active, deep marine strike-slip basin along the North Anatolian Fault in Turkey Tectonics 18 129–147 10.1029/1998TC900017.CrossRefGoogle Scholar
Okay, A.I. Kaşlılar-Özcan, A. İmren, C. Boztepe-Güney, A. Demirbağ, E. and Kuşçu, I., (2000) Active faults and evolving strike-slip basins in the Marmara Sea, northwest Turkey: a multichannel seismic reflection study Tectonophysics 321 189–218 10.1016/S0040-1951(00)00046-9.CrossRefGoogle Scholar
Pearce, J.A. Bender, J.F. De Long, S.E. Kidd, W.S.F. Low, P.J. Güner, Y. Saroglu, F. Yılmaz, Y. Moorbath, S. and Mitchell, J.J., (1990) Genesis of collision volcanism in eastern Anatolia Turkey Journal of Volcanology and Geothermal Research 44 189–229 10.1016/0377-0273(90)90018-B.CrossRefGoogle Scholar
Pysiak, J. and Glinka, A., (1981) Thermal decomposition of basic aluminum potassium sulphate. Part I. Stages of decomposition Thermochimica Acta 44 21–28 10.1016/0040-6031(81)80267-5.CrossRefGoogle Scholar
Railsback, B., (2003) Earth scientist’s periodic table of the elements and their ions Geology 31 737–740 10.1130/G19542.1.CrossRefGoogle Scholar
Rattray, K.J. Taylor, M.R. and Bevan, D.J.M., (1996) Compositional segregation and solid solution in the lead-dominant alunite-type minerals from Broken Hill, N.S.W Mineralogical Magazine 60 779–785 10.1180/minmag.1996.060.402.07.CrossRefGoogle Scholar
Rudolph, W.W. Mason, R. and Schmidt, P., (2003) Synthetic alunites of the potassium-oxonium solid solution series and some other members of the group: synthesis, thermal and X-ray characterization European Journal of Mineralogy 15 913–924 10.1127/0935-1221/2003/0015-0913.CrossRefGoogle Scholar
Schroeder, P.A. Pruett, R.J. and Melear, N.D., (2004) Crystal-chemical changes in an oxidative weathering front in a middle Georgia kaolin deposit Clays and Clay Minerals 52 212–220 10.1346/CCMN.2004.0520207.CrossRefGoogle Scholar
Schroeder, P.A., Smilley, M.J., Ece, Ö.I. and Wampler, M. (2004b) Sulfur isotope and potassium argon analysis of minerals from the Turplu halloysite mine, Balikesir region, northwest Turkey. The Clay Minerals Society, 41stAnnual meeting, Richland, WA. Abstract with programs, p. 134.Google Scholar
Shelobolina, E., Elzea-Kogel, J. Pickering, S.M. Jr. Shelobolina, E. Yuan, J. and Chowns, T.M., (2000) Role of microorganisms in development of commercial grade kaolins Guidebook — Geology of the commercial kaolin mining district of central and eastern Georgia Georgia, USA Georgia Geological Society 45–59.Google Scholar
Singh, B., (1996) Why does halloysite roll? — A new model Clays and Clay Minerals 44 191–196 10.1346/CCMN.1996.0440204.CrossRefGoogle Scholar
Slansky, E., (1973) The thermal investigation of alunite and natroalunite Neues Jahrburch für Mineralogie 3 124–138.CrossRefGoogle Scholar
Stoffregen, R. Alpers, C.N. Jambor, J.L., Alpers, C.N. Jambor, J.L. and Nordstrom, D.K., (2000) Alunite-jarosite crystallography, thermodynamics and geochronology Sulfate Minerals Washington, D.C Mineralogical Society of America, Chantilly, Virginia and the Geochemical Society 453–479.Google Scholar
Taylor, S.R. and McLennan, S.M., (1985) The Continental Crust: Its Composition and Evolution Oxford, UK Blackwell Scientific 312 pp.Google Scholar
Theng, B.K.G. Churchman, G.J. and Whitton, J.S., (1984) Comparison of intercalation methods for differentiating halloysite from kaolinite Clays and Clay Minerals 32 249–258 10.1346/CCMN.1984.0320402.CrossRefGoogle Scholar
Thorpe, R.S., Francis, P.W., Hammill, M. and Barker, M.C.W. (1982) The Andes. Pp. 187–205 in: Andean Magmatism and its Tectonic Setting (Thorpe, R.S., editor). John Wiley & Sons.Google Scholar
Thorpe, R.S. Francis, P.W. and O’Callaghan, L., (1984) Relative roles of source composition, fractional crystallisation and crustal contamination in the petrogenesis of Andean volcanic rocks Philosophical Transaction of the Royal Society, London A310 675–692 10.1098/rsta.1984.0014.Google Scholar
Walker, J.A., Moulds, T.N., Zentilli, M. and Feigenson, M.D. (1991) Spatial and temporal variations in volcanics of the Andean central volcanic zone (26 to 28). Pp. 139–155 in: Andean Magmatism and its Tectonic Setting (Harmon, R.S. and Rapela, C., editors). Geological Society of America Special Paper, 265.CrossRefGoogle Scholar
Winchester, J.A. and Floyd, P.A., (1977) Geochemical discrimination of different magma series and their differentiation products using immobile elements Chemical Geology 20 325–343 10.1016/0009-2541(77)90057-2.CrossRefGoogle Scholar
Yalçın, T.H. (1997) Hydrogeological investigation of Gönen and Ekçidere (Balıkesir) thermal waters (NW Turkey). Pp. 275–300 in: Active Tectonics of Northwestern Anatolia — The Marmara Poly-Project (Schindler, C. and Pfister, M., editors). vdf, Hochschulverlag AG an der ETH Zürich.Google Scholar
Yau, Y.C. Peacor, D.R. and Essene, E.J., (1987) Authigenic anatase and titanite in shales from the Salton Sea Geothermal Field, California Neues Jahrbuch für Mineralogie Monatshefte 19 441–452.Google Scholar