Chemical and isotopic compositions of thermal waters in Anatolia Turkey A link to fluid mineral equilibria

Date

2015-04-17

Author

Mutlu, Halim
Güleç, Nilgün Türkan
Hılton, Davıd Raymond

Metadata

Show full item record

Item Usage Stats

104
views

0
downloads

The complex magmato-tectonic setting of Turkey has resulted in the occurrence of numerous geothermal fields with distinct chemical and isotopic fluid compositions. We evaluate the data on these fluids in terms of water-rock interaction, mineral equilibrium conditions and reservoir temperatures of each geothermal field. The Ca-HCO3 rich nature of most waters is ascribed to derivation from carbonate-type reservoir rocks. SO4-type waters are found in areas where the reservoir is partly comprised of evaporite units. Na-Cl type waters are characteristic for the coastal areas of west Anatolia. Chemical geothermometer applications estimate average reservoir temperatures of 180 °C for the western Anatolian region, 120 °C for the Balıkesir region, 130 °C for the eastern Anatolian region, 140 °C for the North Anatolian Fault Zone and 70 °C for the Eskișehir region. For most of the waters, chalcedony controls the silica solubility and the majority of waters are equilibrated with calcite and chalcedony minerals. Oxygen and hydrogen isotope compositions (-13.5 to -4 permil (VSMOW) and -95.4 to -23 permil (VSMOW), respectively) are generally conformable with Global Meteoric Water Line (GMWL); however, stable isotope systematics of geothermal waters close to the coast are consistent with the Mediterranean Meteoric Water Line (MMWL). Carbon and sulfur isotope compositions (δ13C (VPDB): -17.7 to +5.6 permil and δ34S (VCDT): -5.5 to +45.7 permil) suggest marine carbonates and terrestrial evaporite units as the main source of dissolved carbon and sulfate in the waters

URI

https://hdl.handle.net/11511/86873

Conference Name

EGU General Assembly 2015 (12 - 17 Nisan 2015)

Collections

Department of Geological Engineering, Conference / Seminar

Suggestions

OpenMETU
Core

Chemical composition of Eastern Black Sea aerosol-Preliminary results BALCILAR, İLKER; Zararsız, Abdullah; Kalaycı, Yusuf; DOĞAN, GÜRAY; Tuncel, Süleyman Gürdal (2014-08-01) Trace element composition of atmospheric particles collected at a high altitude site on the Eastern Black Sea coast of Turkey was investigated to understand atmospheric transport of pollutants to this semi-closed basin. Aerosol samples were collected at a timber-storage area, which is operated by the General Directorate of Forestry. The site is situated at a rural area and is approximately 50 km to the Black Sea coast and 200 km to the Georgia border of Turkey. Coarse (PM2.5-10) and fine (PM2.5) aerosol sam...
Levels and sources of polychlorinated biphenyls in Ankara creek sediments, Turkey Ozyurek, Nazan Akduman; Gedik, Kadir; Sıltu, Esra; İmamoğlu, İpek (Informa UK Limited, 2013-06-01) The spatial distribution, degree of pollution and major sources of polychlorinated biphenyls (PCBs) were evaluated in surficial sediments of Ankara Creek, located in the capital of Turkey and serving as one of the tributaries in the third largest watershed in Turkey. Sediment sigma PCB concentrations analyzed on Aroclor and congener basis (seven indicator congeners) range from 5.5 to 777.6ng g1 and 3.7 to 743.3ng g1 dw as Aroclor and congener based concentrations, respectively. High concentrations of sigma ...
Characterization and Comparison of geothermal fluids geochemistry within the Kızıldere Geothermal Field in Turkey: New findings with power capacity expanding studies Tut Haklıdır , Füsun S.; Şengün, Raziye; Aydın, Hakkı (Elsevier BV, 2021-7) The Kızıldere geothermal field is the first known high-temperature geothermal field in Turkey. The field is located in the Büyük Menderes Graben (BMG), Western Anatolia (Turkey). There are four production sections (reservoir-I, II, III, and IV) with different rock compositions and geochemical characteristics in the production area. Identifying and characterizing these production units may give a good insight into field development plans for a sustainable production. This study aims to characterize productio...
Enrichment of metals in the surface sediments of Sapanca Lake Bakan, G; Balkas, TI (Wiley, 1999-01-01) A comprehensive lake sediment study was performed on the Sapanca Lake of Turkey in which certain metal analyses were conducted using inductively coupled plasma atomic emission spectroscopy. The purpose of the study was to find the enrichment of metals in the surface sediments of Sapanca Lake. A method, namely, the index of geoaccumulation, was used to define the degree of anthropogenic pollution in the Sapanca Lake basin. Results of the geoaccumulation index indicate that only enrichments of trace metals, c...
Source components and magmatic processes in the genesis of Miocene to Quaternary lavas in western Turkey: constraints from HSE distribution and Hf-Pb-Os isotopes Aldanmaz, Ercan; Pickard, Megan; Meisel, Thomas; Altunkaynak, Şafak; Sayıt, Kaan; Sen, Pinar; Hanan, Barry B.; Furman, Tanya (Springer Science and Business Media LLC, 2015-08-01) Hf-Pb-Os isotope compositions and highly siderophile element (HSE) abundance variations are used to evaluate the mantle source characteristics and possible effects of differentiation processes in lavas from western Turkey, where the eruption of Late Miocene to Quaternary OIB-type intraplate mafic alkaline lavas followed pre-Middle Miocene convergent margin-type volcanism. Concentrations of Os, Ir, and Ru (IPGE) in the OIB-type intraplate lavas decrease with fractionation for primitive melts (MgO > 10 wt%), ...

Citation Formats

H. Mutlu, N. T. Güleç, and D. R. Hılton, “Chemical and isotopic compositions of thermal waters in Anatolia Turkey A link to fluid mineral equilibria,” Viyana, Avusturya, 2015, vol. 17, Accessed: 00, 2021. [Online]. Available: https://hdl.handle.net/11511/86873.