Noble gas isotopes and the chemical composition of geothermal gases from the eastern part of the Buyuk Menderes Graben (Turkey)

We present noble gas isotope and gas composition data from eight production wells of the Kizildere geothermal field and from six gas discharging pools from the adjacent Tekke Hamam geothermal field, situated in the eastern segment of the Buyuk Menderes Graben system in western Anatolia (Turkey). Gas from both locations is composed mainly of CO2 with minor contributions of N-2, H2S, CH4, O-2, Ar, H-2, C2+ and He, with higher contents of H2S. He and C2+ in Tekke Hamam samples.


Spatial variations in gas and stable isotope compositions of thermal fluids around Lake Van: Implications for crust-mantle dynamics in eastern Turkey
Mutlu, Halim; Güleç, Nilgün Türkan; Hilton, David R.; Aydın, Harun; Halldorsson, Saemundur A. (2012-03-18)
We investigate the helium (He-3/He-4) and carbon (delta C-13) isotope compositions and relative abundance ratios (CO2/He-3) of gas samples together with the stable isotope compositions of dissolved carbon and sulfur and the oxygen and hydrogen isotopic compositions of the associated water phase from a number of geothermal fields located around Lake Van in eastern Anatolia, Turkey. The mantle-derived helium component, which is likely transferred to the crust beneath eastern Turkey by recent magmatism, is fou...
Carbon dioxide injection field pilot in umurlu geothermal field, Turkey
Yücetaş, İsmet; Ergiçay, Nevzat; Akın, Serhat (null; 2018-01-01)
The Umurlu geothermal reservoir located in Buyuk Menderes Graben, Turkey initially contained around 2% by weight CO_2 dissolved in geothermal reservoir fluid. The produced CO_2 rate declined over one year of production time due to dilution of reservoir gas by degassed injectate. Since CO_2 has a considerable role on Umurlu reservoir performance and energy production, produced non-condensable gas (NCG) has been injected simultaneously with colder degassed injectate from an injection well for the last two mon...
Quantitative comparison of the influxes of nutrients and organic carbon into the sea of marmara both from anthropogenic sources and from The Black Sea
Tuğrul, Süleyman; POLAT, Çolpan (1995-01-01)
The Sea of Marmara, an intercontinental basin with two narrow and shallow straits permitting the exchange of the Mediterranean and Black Sea waters, receives 2.8x10(4) tons TP (total phosphorus), 2.7x10(5) tons TN (total nitrogen) and 1.9x10(6) tons TOC (total organic carbon) per year from the Black Sea inflow, from the lower layer by vertical mixing and from anthropogenic inputs of various origins including riverine discharges. The Black Sea input through the Bosphorus constitutes about 35, 64 and 77%, res...
Trace element and Sr-Nd-Hf-Pb isotopic constraints on the composition and evolution of eastern Anatolian sub-lithospheric mantle
Aktag, Alican; Sayıt, Kaan; Peters, Bradley J.; Furman, Tanya; Rickli, Jorg (2022-11-01)
Quaternary Elazig mafic alkaline volcanism is part of the anorogenic volcanic system of the circum-Mediterranean region, and it provides crucial insights into the chemical nature of the mantle source domains beneath eastern Turkey. Elemental and isotope geochemistry reveals that these mafic lithologies are mainly free of crustal contamination, reflecting geochemical signatures inherited from partial melting of their mantle sources. The trace element and Sr-Nd-Hf-Pb isotope systematics of the most primitive ...
Hydrogeochemical outline of thermal waters and geothermometry applications in Anatolia (Turkey)
Mutlu, Halim; Güleç, Nilgün Türkan (Elsevier BV, 1998-10-01)
The chemical compositions of a total of 120 thermal water samples from four different tectonically distinct regions (Central, North, East and West Anatolia) of Turkey are presented and assessed in terms of geothermal energy potential of each region through the use of chemical geothermometers. Na-Ca-HCO3, type waters are the dominant water types in all the regions except that Na-Cl type waters are typical for the coastal areas of West Anatolia and for a few inland areas of West and Central Anatolia where dee...
Citation Formats
T. Wiersberg, S. Süer, N. T. Güleç, J. Erzinger, and M. Parlaktuna, “Noble gas isotopes and the chemical composition of geothermal gases from the eastern part of the Buyuk Menderes Graben (Turkey),” JOURNAL OF VOLCANOLOGY AND GEOTHERMAL RESEARCH, pp. 112–121, 2011, Accessed: 00, 2020. [Online]. Available: