Quick Search:    advanced search

GSW Home   GeoRef Home   My GSW Alerts   Contact GSW   About GSW   Journals List   Help

This Article Figures Only Full Text Full Text (PDF) Alert me when this article is cited Alert me if a correction is posted Citation Map Services Email this article to a friend Similar articles in this journal Similar articles in Web of Science Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via HighWire Citing Articles via Google Scholar Google Scholar Articles by YILDIZ, A. Articles by KUSCU, M. Search for Related Content GeoRef GeoRef Citation

Mineralogy, chemistry and physical properties of bentonites from Baören, Kütahya, W Anatolia, Turkey

A. YILDIZ^1,* and M. KUCU²

¹ Afyonkarahisar Kocatepe University, Engineering Faculty, Afyonkarahisar, Turkey, and ² Suleyman Demirel University, Faculty of Engineering and Architecture, Isparta, Turkey

^* E-mail: ayildiz{at}aku.edu.tr

(Received 12 November 2006; revised 11 July 2007)

The bentonite deposits in Baören Kütahya, W Anatolia, Turkey were formed by alteration of Pliocene perlite and pyroclastic rocks. Two types of bentonites are distinguished in this area on the basis of their physical properties, chemistry and occurrence. Bentonites were examined to determine their mineralogical, chemical and physical properties. Analytical methods include X-ray diffraction (XRD), scanning electron microscopy (SEM), chemical analysis and measurement of cation exchange capacity (CEC), swelling volume, water adsorption, bleaching capacity, and firing shrinkage. Bentonites consist mainly of dioctahedral smectite. They also contain zeolite, opal-CT, cristobalite, quartz, feldspar, dolomite and calcite. The ‘Type 2’ bentonites had greater CEC, swelling volume, water adsorption and bleaching capacity than ‘Type 1’. The variation in the physical properties of the two bentonites is attributed to the differences in the non-clay mineralogy and to the chemical composition and nature of interlayer cation.

KEYWORDS: bentonite, smectite, CEC, swelling, Kütahya, W Anatolia, Turkey

This article has been cited by other articles:

				G. E. Christidis and W. D. Huff Geological Aspects and Genesis of Bentonites Elements, April 1, 2009; 5(2): 93 - 98. [Abstract] [Full Text] [PDF]

				G. E. Christidis Do bentonites have contradictory characteristics? An attempt to answer unanswered questions Clay Minerals, December 1, 2008; 43(4): 515 - 529. [Abstract] [Full Text] [PDF]