Fourth Mediterranean Clay Meeting Preface

Tuerkmenoglu, Asuman Guenal
Göktürk, Emine Hale
This special issue contains articles based on selected contributions presented during the “Fourth Mediterranean Clay Meeting” held on 5–10 September 2006 at the Middle East Technical University, Ankara. The contents of this special issue originated from the considerable amounts of interest in common between chemists, engineers and geologists, particularly with respect to both mineralogy–chemistry-characterization of clays, and their applications to environmental and engineering problems. In total ten articles are included in this special issue. Hidalgo et al. deal with a degraded soil ecosystem in Mexico because of its important ecological, social and economic consequences. Aringhiari and Lelli present the results of their kinetic study on the decomposition rate and hydrolysis of Na-montmorillonite in aqueous suspensions. The study foresees the behavior of clays under natural environmental conditions in order to understand in more detail the physical degradation of the soil ecosystems. In the research by Píšková et al. High Temperature XRD is used as a tool to characterize the intercalation of smectites and layered double hydroxides with small inorganic and large organic ions in their interlayer space. Koutsopoulou et al. determine the suitability and function of clay materials used in a landfill area and suggest that clay mineral surfaces may serve to retain pollutants. Khodja et al. deal with the optimisation of drilling conditions in an Algerian field. The rheological and filtration characteristics of water based muds mixed with different inhibitory polymers are investigated. Akgün points out to the role of clays as sealing material to protect the natural environment against the possible penetration of radionuclides in the proximity of a high-level nuclear waste repository. Çokça and Tilgen investigate the relationship between shear strength and soil suction of compacted Ankara clay and point out the importance of these variables in civil engineering applications. Vizcayno et al. compare the pozzolanic activity of metakaolin obtained by thermal treatment and amorphous kaolin produced by a mechanochemical treatment. The study shows that active pozzolans could be obtained by both types of treatments of the raw kaolins. Further, Budak et al. investigate the pozzolanic character of heated clays for the purpose of restoration and conservation of historic buildings. Özkan et al. examine the usability of the clay by-product of a gold mine as a secondary raw material in the manufacture of floor tile ceramics while also reducing the environmental problems that are a consequence of its disposal. Overall, the Fourth Mediterranean Clay Meeting succeeded in its aims of bringing scientists together from different fields and from many institutions and countries with common scientific and technical interests in clays and clay minerals. In conclusion, this special issue reflects clearly the current progress and some of the recent findings in Clay Science and in its applications.


Origin and interactions of fluids circulating over the Amik Basin (Hatay, Turkey) and relationships with the hydrologic, geologic and tectonic settings
YÜCE, GALİP; Italiano, F.; D'Alessandro, W.; Yalcin, T. H.; YASİN, DİDEM; Gulbay, A. H.; ÖZYURT, NACİYE NUR; Rojay, Fuat Bora; KARABACAK, VOLKAN; Bellomo, S.; Brusca, L.; Yang, T.; Fu, C. C.; Lai, C. W.; Özacar, Atilla Arda; Walia, V. (Elsevier BV, 2014-11-21)
We investigated the geochemical features of the fluids circulating over the Amik Basin (SE Turkey-Syria border), which is crossed by the Northern extension of the DSF (Dead Sea Fault) and represents the boundary area of three tectonic plates (Anatolian, Arabian and African plates). We collected 34 water samples (thermal and cold from natural springs and boreholes) as well as 8 gas samples (bubbling and gas seepage) besides the gases dissolved in the sampled waters. The results show that the dissolved gas ph...
Helium-carbon relationships in geothermal fluids of western Anatolia, Turkey
Mutlu, Halim; Güleç, Nilgün Türkan; Hilton, David R. (Elsevier BV, 2008-01-15)
We investigate the helium, carbon and oxygen-hydrogen isotopic systematics and CO(2)/(3)He ratios of 8 water and 6 gas samples collected from 12 geothermal fields in western Anatolia (Turkey). (3)He/(4)He ratios of the samples (R) normalized to the atmospheric (3)He/(4)He ratio (R(A) = 1.39 x 10(-6)) range from 0.27 to 1.67 and are significantly higher than the crustal production value of 0.05. Fluids with relatively high R/R(A) values are generally found in areas of significant heat potential (Kizildere an...
Activation of some Turkish bentonites to improve their drilling fluid properties
Erdogan, B; Demirci, S (Elsevier BV, 1996-01-01)
In this study three Turkish bentonites (Samas, Canbensan and Ceylan) were tested for their potential use in drilling fluids. The drilling-mud quality of the bentonites from Canbensan and Ceylan were significantly improved with some additives such as salts (Na2CO3, Na2SO4, AI(2)(SO4)(3)), gypsum, high molecular weight polymers, polyacrylamide, polyacrylic and sodium carboxymethyl cellulose. Salts were found not to be as effective as polymeric materials for this purpose.
Genetic investigation and comparison of Kartaldag and Madendag epithermal gold deposits in Canakkale, NW Turkey
Unal-Imer, Ezgi; Güleç, Nilgün Türkan; Kuşcu, İlkay; Fallick, Anthony E. (Elsevier BV, 2013-09-01)
Two epithermal gold deposits (Kartaldag and Madendag) located in NW Turkey have been characterized through the detailed examinations involving geologic, mineralogical, fluid inclusion, stable isotope, whole-rock geochemistry, and geochronology data.
Regional and temporal variations in CO2/He-3, He-3/He-4 and delta C-13 along the North Anatolian Fault Zone, Turkey
De Leeuw, G. A. M.; Hilton, D. R.; Güleç, Nilgün Türkan; Mutlu, H. (Elsevier BV, 2010-04-01)
New He and C relative abundance, isotope and concentration results from nine geothermal locations situated along an 800-km transect of the North Anatolian Fault Zone (NAFZ), Turkey, that were monitored during the period November 2001-November 2004, are reported. The geothermal waters were collected every 3-6 months to study possible links between temporal geochemical variations and seismic activity along the NAFZ. At the nine sample locations, the He isotope ratios range from 0.24 to 2.3R(A), delta C-13 val...
Citation Formats
A. G. Tuerkmenoglu and E. H. Göktürk, “Fourth Mediterranean Clay Meeting Preface,” APPLIED CLAY SCIENCE, pp. 347–347, 2010, Accessed: 00, 2020. [Online]. Available: