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dc.contributor.authorBilim, Funda
dc.contributor.authorAydemir, Attila
dc.contributor.authorKosaroglu, Sinan
dc.contributor.authorBektas, Ozcan
dc.date.accessioned2019-07-27T12:10:23Z
dc.date.accessioned2019-07-28T09:38:01Z
dc.date.available2019-07-27T12:10:23Z
dc.date.available2019-07-28T09:38:01Z
dc.date.issued2018
dc.identifier.issn0258-8900
dc.identifier.issn1432-0819
dc.identifier.urihttps://dx.doi.org/10.1007/s00445-018-1228-y
dc.identifier.urihttps://hdl.handle.net/20.500.12418/6245
dc.descriptionWOS: 000432049200001en_US
dc.description.abstractThe Karacadag Volcanic Complex (KVC) is the largest volcanic unit in SE Turkey. It is also defined as a shield volcano on the northernmost part of the Arabian Plate. The main goal of this study is to investigate the geothermal potential of this region associated with the magnetic signature of this volcanic complex and surrounding area. Besides this primary objective, the possibility of there being volcanic intrusion into the buried fault zones under the volcanic cover are also investigated to determine the interrelations between the active tectonics and heat flow in the area. A spectral analysis method is applied to the magnetic anomalies of the volcanic rocks to identify the Curie point depth (CPD) and geothermal gradient, as well as to estimate heat flow and radiogenic heat production of radioactive minerals in the complex. A tilt angle map is also presented, in correlation with instrumentally recorded earthquake magnitudes, to indicate tectonic trends that are consistent with the maps of the thermal parameters in this study. In contrast with expectations for the KVC area, the region around Akcakale and Suruc Grabens is the most prolific zone for geothermal potential, despite them not showing strong magnetic anomalies. Curie point depths are shallow, down to 18 km. around the Akcakale Graben, and deeper, down to 22 km, around the Bitlis-Zagros Suture Zone where the geothermal gradients increase from 26 to 32 degrees C km(-1) through the graben area. Heat flows in this zone are in the range from 75 to 90 mW m(-2) depending on the thermal conductivity coefficient (2.3, 2.5, 2.7, and 3.0 W m(-1) K-1) used. Radiogenic heat production values also indicate slightly changing spectra in the range 0.19 to 0.25 mu W m(-3)). None of these parameters are focused around Mt. Karacadag. However, the earthquake epicenters (generally M <= 4) are aligned with the boundary faults of the Akcakale Graben where the CPD, geothermal gradient, and heat flow maps indicate relatively high potential. We thus suggest that this graben area would be good for future geothermal exploration. On the contrary, considering the low geothermal gradient and heat flow values, Mt. Karacadag can be accepted as being an extinct volcano, despite its apparent, high, magnetic anomalies.en_US
dc.description.sponsorshipGeneral Directorate of Mining Research and Exploration (MTA) of Turkey [YDABCAG-118]en_US
dc.description.sponsorshipThe authors are grateful to the General Directorate of Mining Research and Exploration (MTA) of Turkey for the aeromagnetic data used in a Turkish Scientific Research Council (TUBITAK) Project (Project Code YDABCAG-118). Authors thank Dr. Andrew Harris, the Editor-in-Chief for his efforts and suggestions during the last revision periods, and two reviewers for their constructive critiques.en_US
dc.language.isoengen_US
dc.publisherSPRINGERen_US
dc.relation.isversionof10.1007/s00445-018-1228-yen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectKaracadagen_US
dc.subjectAkcakale grabenen_US
dc.subjectShield volcanoen_US
dc.subjectCurie point depthen_US
dc.subjectGeothermal gradienten_US
dc.subjectHeat flowen_US
dc.titleEffects of the Karacadag Volcanic Complex on the thermal structure and geothermal potential of southeast Anatoliaen_US
dc.typearticleen_US
dc.relation.journalBULLETIN OF VOLCANOLOGYen_US
dc.contributor.department[Bilim, Funda -- Kosaroglu, Sinan -- Bektas, Ozcan] Cumhuriyet Univ, Engn Fac, Geophys Engn Dept, Sivas, Turkey -- [Aydemir, Attila] Turkiye Petrolleri AO, Sogutozu Mahallesi,2180 Cad 10, TR-06530 Ankara, Turkeyen_US
dc.identifier.volume80en_US
dc.identifier.issue6en_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US


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