Hostname: page-component-78c5997874-8bhkd Total loading time: 0 Render date: 2024-11-19T20:44:33.796Z Has data issue: false hasContentIssue false
  • English
  • Français

Geology and mineralogy of a sepiolite-palygorskite occurrence from SW Eskişehir (Turkey)

Published online by Cambridge University Press:  09 July 2018

M. Yeniyol
M. Yeniyol*
Affiliation:
University of Istanbul, Department of Geology, 34850 Avcılar, Istanbul, Turkey
*
*E-mail: [email protected]
Get access Rights & Permissions [Opens in a new window]

Abstract

The present occurrence is the only deposit among those found in Eskişehir province containing both sepiolite and palygorskite in economic amounts. To describe the geology, mineralogy and genetic relationships, two representative measured sections were examined by field work and XRD, XRF and SEM analyses. Sepiolite and palygorskite occur in a ∼40 m thick part of Pliocene sequence where saponite is also found. These minerals appear in ascending order as: palygorskite, saponite, saponite + palygorskite, sepiolite and sepiolite + palygorskite, frequently in association with dolomite. Chemical precipitation from the alkaline lake environment under semiarid or arid conditions was the main process resulting in sepiolite, palygorskite and saponite formation. Of these, saponite and palygorskite were formed when the lake water was rich-in Al and Fe. Changes in pH may have controlled whether saponite or palygorskite could be formed. Palygorskite was also developed by transformation from saponite during diagenesis.

Keywords

sepiolitepalygorskitesaponitedolomiteSW EskişehirTurkey
Type
Research Article
Information
Clay Minerals , Volume 47 , Issue 1 , March 2012 , pp. 93 - 104
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 2012

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Akbulut, A. & Kadir, S. (2003) The geology and origin of sepiolite, palygorskite and saponite in Neogene lacustrine sediments of Serinhisar-Acıpayam basin, Denizli, SW Turkey. Clays and Clay Minerals, 51, 279–292.CrossRefGoogle Scholar
Akıncı, ö. (1967) Eskişehir I24–C1 paftasının jeolojisi ve tabakalı lületaşı zuhurları. Mineral Research and Exploration Bulletin of Turkey, 67, 82–97.Google Scholar
Bailey, S.W. (1980) Structures of layer silicates. Pp. 1–125 in: Crystal Structures of Clay Minerals and their X-ray Identification (Brindley, G.W. & Brown, G., editors). Mineralogical Society Monograph No. 5. Mineralogical Society, London.Google Scholar
Bilgin, T. (1972) Eskişehir ili kil imkanlarının genel ekonomik prospeksiyon raporu. MTA Report, No. 4708, Ankara.Google Scholar
Birsoy, R. (2002) Formation of sepiolite-palygorskite and related minerals from solution. Clays and Clay Minerals, 50, 736–745.CrossRefGoogle Scholar
Brindley, G.W. (1980) Quantitative X-ray mineral analysis of clays. Pp. 414–438 in: Crystal Structures of Clay Minerals and their X-ray Identification (G.W. Brindley & G. Brown, editors). Mineralogical Society Monograph No. 5. Mineralogical Society, London.Google Scholar
Chahi, A., Fritz, B., Duplay, J., Weber, F. & Lucas, J. (1997) Textural transition and genetic relationship between precursor stevensite and sepiolite in lacustrine sediments (Jbel Rhassoul, Morocco). Clays and Clay Minerals, 45, 378–389.CrossRefGoogle Scholar
Ece, ö.I. & Çoban, F. (1994) Geology, occurrence and genesis of Eskişehir sepiolites, Turkey. Clays and Clay Minerals, 42, 81–92.CrossRefGoogle Scholar
Galan, E. & Castillo, A. (1984) Sepiolite-palygorskite in Spanish Tertiary basin: genetic patterns in continental environments. Pp. 87–124 in: Palygorskite-Sepiolite Occurrences, Genesis and Uses (A. Singer & E. Galan, editors). Developments in Sedimentology, 37, Elsevier, Amsterdam.CrossRefGoogle Scholar
Galan, E. & Ferrero, A. (1982) Palygorskite-sepiolite clays of Lebrija, southern Spain. Clays and Clay Minerals, 30, 191–199.CrossRefGoogle Scholar
Garcia-Romero, E., Suarez, M., Santaren, J. & Alvarez, A. (2007) Crystallochemical characterization of the palygorskite and sepiolite from the Allou Kagne deposit, Senegal. Clays and Clay Minerals, 55, 606–617.CrossRefGoogle Scholar
Gencoğlu, H., İrkeç, T. & Çokyaman, S. (1993) Geology and mineralogy of Eskişehir Sivrihisar area. Pp. 25–127 in: Utilization of Sepiolite and Mg-bearing Clays in Turkey. ITIT Project No. 90–1–5. MTA Report, No. 102778, Ankara.Google Scholar
Jackson, M.L. (1969) Soil Chemical Analysis Advanced Course, 2nd edition. Published by the author, Madison, Wisconsin.Google Scholar
Karakaya, N., Karakaya, M.N., Temel, A., Küpeli, ş. & Tunoğlu, C. (2004) Mineralogical and chemical characterization of sepiolite occurrences at Karapınar (Konya Basin, Turkey). Clays and Clay Minerals, 52, 495–509.CrossRefGoogle Scholar
Khademi, H. & Mermut, A.R. (1998) Source of palygorskite in gypsiferous aridisols and associated sediments in central Iran. Clay Minerals, 33, 561–578.CrossRefGoogle Scholar
Kulaksız, S. (1981) Sivrihisar Kuzey-Batı yö resinin jeolojisi. Hacettepe üniversitesi Yerbilimleri, 8, 103–124.Google Scholar
Leguey, S., Martin Rubi, J.A., Casas, J., Marta, J., Cuevas, J., Alvarez, J. & Medina, J.A. (1995) Diagenetic evolution and mineral fabric in sepiolitic materials from the Vicalvaro Deposit (Madrid Basin). Pp. 383–392 in: Proceedings of the 10th International Clay Conference, Adelaide.Google Scholar
MTA (2002) 1:500.000 Scaled Geological Map Series of Turkey, Ankara sheet. General Directorate of Mineral Research and Exploration, Ankara.Google Scholar
Öncel, Z. & Denizci, F. (1982) Eskişehir bö lgesi lületaşı ve magnezit etüdleri raporu. MTA Report, No. 1781, Ankara.Google Scholar
Sarıiz, K. (2000) The geology, mineralogy, and occurrence of bedded sepiolite deposits in the Akçayır-Yürükakçayır (Eskişehir) lacustrine basin, Central Turkey. Exploration and Mining Geology, 9, 265–275.CrossRefGoogle Scholar
Siffert, B. (1962) Quelques réactions de la silice en solution: La formation des argiles. Mémoires du Service de la Carte Géologique d’Alsace-Lorraine, 21, 100pp.Google Scholar
Singer, A. (1984) Pedogenetic palygorskite in the arid environment. Pp. 171–175 in: Palygorskite-Sepiolite Occurrences, Genesis and Uses (A. Singer & E. Galan, editors). Developments in Sedimentology, 37, Elsevier, Amsterdam.CrossRefGoogle Scholar
Stoessell, R.K. & Hay, R.L. (1978) The geochemical origin of sepiolite and kerolite at Amboseli, Kenya. Contributions to Mineralogy and Petrology, 65, 255–267.CrossRefGoogle Scholar
Tlili, A., Felhi, M. & Montacer, M. (2010) Origin and depositional environment of palygorskite and sepiolite from the Ypresian phosphatic series, southwestern Tunusia. Clays and Clay Minerals, 58, 573–584.CrossRefGoogle Scholar
Weaver, C.E. (1984) Origin and geologic implications of the palygorskite deposits of SE United States. Pp. 39–58 in: Palygorskite-Sepiolite Occurrences, Genesis and Uses (A. Singer & E. Galan, editors). Developments in Sedimentology, 37, Elsevier, Amsterdam.CrossRefGoogle Scholar
Wollast, R., Mackenzie, F.T. & Bricker, O.P. (1968) Experimental precipitation and genesis of sepiolite at earth-surface conditions. American Mineralogist, 53, 1645–1661.Google Scholar
Yalçın, H. & Bozkaya, Ö. (1995) Sepiolite-palygorskite from the Hekimhan region (Turkey). Clays and Clay Minerals, 43, 705–717.CrossRefGoogle Scholar
Yeniyol, M. (1992) Geology, mineralogy and genesis of the Yenidoğan (Sivrihisar) sepiolite deposit. Mineral Research and Exploration Bulletin of Turkey, 114, 71–84.Google Scholar
Yeniyol, M. (1993a) Sivrihisar’da (Eskişehir) sedimanter- diyajenetik oluşumlu yeni bir lületaşı türü. Mineral Research and Exploration Bulletin of Turkey, 115, 81–90.Google Scholar
Yeniyol, M. (1993b) Meerschaum sepiolite and palygorskite occurrence in Central Anatolia, Turkey. Pp. 378–382 in: Clays: Controlling the Environment; Proceedings of the 10th International Clay Conference, Adelaide.Google Scholar
Yeniyol, M. (2007) Characterization of a Mg-rich and low-charged saponite from the Neogene lacustrine basin of Eskişehir, Turkey. Clay Minerals, 42, 541–548.CrossRefGoogle Scholar
Yeniyol, M. & Öztunalı, Ö. (1985) Yunak sepiolitinin mineralojisi ve oluşumu. Pp. 171–186 in: Proceedings of the 2nd National Clay Symposium, Anakara.Google Scholar
Zaaboub, N., Abdeljapouad, S. & Lopez Galindo, A. (2005) Origin of fibrous clays in Tunusian Paleogene continental deposits. Journal of African Earth Sciences, 43, 491–504.CrossRefGoogle Scholar