Geology, fluid inclusion, and stable isotope (O, H, S, C) characteristics of the Hazinemagara (Gumushane) lead-zinc deposit, NE Turkey

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dc.authoridGOKCE, AHMET/0000-0001-7776-1893
dc.contributor.authorUnal Cakir, Esra
dc.contributor.authorGokce, Ahmet
dc.date.accessioned2024-10-26T18:00:04Z
dc.date.available2024-10-26T18:00:04Z
dc.date.issued2019
dc.departmentSivas Cumhuriyet Üniversitesi
dc.description.abstractThe Hazinemagara (Gumushane) Pb-Zn deposit is located in the southern part of the Eastern Pontides Orogenic Belt in northeastern Turkey. It occurs as irregularly shaped ore bodies with breccia fill structure within the intraformational breccia or brecciated horizons of limestone in the Upper Jurassic-Lower Cretaceous Berdiga Formation. The dominant ore minerals are pyrite, sphalerite, galena, and tetrahedrite, and the major gangue minerals are calcite, quartz, and barite. Microthermometric investigations of the fluid inclusions show that the ore-forming fluids contain CaCl2 and MgCl2 in addition to NaCl. The salinity of the fluid ranges from 1.7% to 9.2% with an average of 5.7% (wt.% NaCl equivalent) (n - 93). The homogenization temperature of the fluid ranges from 160.0 to 386.0 degrees C with an average of 263.5 degrees C (n = 98). The plots of the delta D values of water trapped in fluid inclusions hosted by barite and quartz (in the range of 92 parts per thousand to 81 parts per thousand) and the delta O-18 values calculated for water in equilibrium with these minerals (4.1 parts per thousand to 18.5 parts per thousand) are closer to the magmatic range than any other water sources and suggest the presence of magmatic water in hydrothermal fluid with some modifications by interaction with fluid from surrounding sedimentary rocks. The sulfur isotope composition of sulfide minerals (in the range of -7.8 parts per thousand(VCDT) to +5.4 parts per thousand(VCDT) avg.: -2.0 parts per thousand; n = 13) indicates a magmatic source for sulfur. It is concluded that the magmatic water derived from deep-seated Eocene plutonic rocks (Kackar Granitoids-I and -II) possibly carried metals and the sulfur derived from the source magma or leached from magmatic rocks on the pathway along the fault zones and precipitated mainly within voids between limestone fragments in intraformational breccia horizons of the Berdiga Formation. The Berdiga Formation is observed in large areas within the Eastern Pontide region and the intraformational breccia horizons could provide large stratabound ore potential.
dc.description.sponsorshipResearch Foundation Council of Cumhuriyet University [M-415]; TUBITAK
dc.description.sponsorshipThis study was partly supported by the Research Foundation Council of Cumhuriyet University (Project No. M-415). Appreciation is extended to TUBITAK for financial support of the PhD scholarship program for the senior author. We would like to thank Oktay Canbaz for his kind assistance during laboratory studies, and Dr Baruch Spiro is thanked for critical reading of the manuscript. We also thank Dr Chris Harris and two other anonymous referees of TJES for their helpful comments.
dc.identifier.doi10.3906/yer-1809-22
dc.identifier.endpage639
dc.identifier.issn1300-0985
dc.identifier.issue4
dc.identifier.scopus2-s2.0-85071153294
dc.identifier.scopusqualityQ2
dc.identifier.startpage623
dc.identifier.trdizinid336286
dc.identifier.urihttps://doi.org/10.3906/yer-1809-22
dc.identifier.urihttps://search.trdizin.gov.tr/tr/yayin/detay/336286
dc.identifier.urihttps://hdl.handle.net/20.500.12418/27504
dc.identifier.volume28
dc.identifier.wosWOS:000477003100008
dc.identifier.wosqualityQ4
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.indekslendigikaynakTR-Dizin
dc.language.isoen
dc.publisherTubitak Scientific & Technological Research Council Turkey
dc.relation.ispartofTurkish Journal of Earth Sciences
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/openAccess
dc.subjectHazinemagara
dc.subjectPontides
dc.subjectlead-zinc deposit
dc.subjectfluid inclusion
dc.subjectstable isotope geochemistry
dc.titleGeology, fluid inclusion, and stable isotope (O, H, S, C) characteristics of the Hazinemagara (Gumushane) lead-zinc deposit, NE Turkey
dc.typeArticle

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