The evolution of the Cappadocia Geothermal Province, Anatolia (Turkey): geochemical and geochronological evidence

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dc.contributor.authorSener, M. Furkan
dc.contributor.authorSener, Mehmet
dc.contributor.authorUysal, I. Tonguc
dc.date.accessioned2024-11-07T13:34:15Z
dc.date.available2024-11-07T13:34:15Z
dc.date.issued2017
dc.departmentNiğde Ömer Halisdemir Üniversitesi
dc.description.abstractCappadocia Geothermal Province (CGP), central Turkey, consists of nine individual geothermal regions controlled by active regional fault systems. This paper examines the age dating of alteration minerals and the geochemistry (trace elements and isotopes) of the alteration minerals and geothermal waters, to assess the evolution of CGP in relation to regional tectonics. Ar-Ar age data of jarosite and alunite show that the host rocks were exposed to oxidizing conditions near the Earth's surface at about 5.30 Ma. Based on the delta O-18-delta D relationhip, water samples had a high altitude meteoric origin. The delta S-34 values of jarosite and alunite indicate that water samples from the southern part of the study area reached the surface after circulation through volcanic rocks, while northern samples had traveled to the surface after interacting with evaporates at greater depths. REY (rare earth elements and yttrium) diagrams of alteration minerals (especially illite, jarosite and alunite) from rock samples, taken from the same locations as the water samples, display a similar REY pattern to water samples. This suggests that thermal fluids, which reached the surface along a fault zone and caused the mineral alteration in the past, had similar chemical composition to the current geothermal water. The geothermal conceptual model, which defines a volcanically heated reservoir and cap rocks, suggests there are no structural drawbacks to the use of the CGP geothermal system as a resource. However, fluid is insufficient to drive the geothermal system as a result of scanty supply of meteoric water due to evaporation significantly exceeding rainfall.
dc.description.sponsorshipScientific Research Project Coordination Unit of Omer Halisdemir University [FEB2013/07-DTP, FEB2012/36-BAGEP]; Queensland Geothermal Energy Centre of Excellence (QGECE) - Queensland State Government, Australia; TUBITAK (Scientific and Technological Research Council of Turkey)
dc.description.sponsorshipThis study was the funded by Scientific Research Project Coordination Unit of Omer Halisdemir University (FEB2013/07-DTP and FEB2012/36-BAGEP) and Queensland Geothermal Energy Centre of Excellence (QGECE) which was supported by the Queensland State Government, Australia. The authors wish to express their sincere thanks to TUBITAK (Scientific and Technological Research Council of Turkey) for its financial support. We thank Dr. Yeu-xing Feng, Prof. Jian Zhao and Kim Baublys for their help with analytical and technical assistance. Special thanks go to Prof. Ibrahim Cogroglu, Dr. Orkun Ersoy and Prof. Alper Baba for their discussions.
dc.identifier.doi10.1007/s10040-017-1613-1
dc.identifier.endpage2345
dc.identifier.issn1431-2174
dc.identifier.issn1435-0157
dc.identifier.issue8
dc.identifier.scopus2-s2.0-85021790244
dc.identifier.scopusqualityQ1
dc.identifier.startpage2323
dc.identifier.urihttps://doi.org/10.1007/s10040-017-1613-1
dc.identifier.urihttps://hdl.handle.net/11480/15871
dc.identifier.volume25
dc.identifier.wosWOS:000415195900009
dc.identifier.wosqualityQ2
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherSpringer
dc.relation.ispartofHydrogeology Journal
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_20241106
dc.subjectHydrothermal alteration
dc.subjectHydrochemistry
dc.subjectGeochronology
dc.subjectRare earth elements
dc.subjectTurkey
dc.titleThe evolution of the Cappadocia Geothermal Province, Anatolia (Turkey): geochemical and geochronological evidence
dc.title.alternativeEvolution de la province géothermale de Cappadoce, Anatolie (Turquie): Evidences géochimiques et géochronologiques
dc.typeArticle

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