Stable isotopes (S, O and H) studies at the lead-zinc deposits in the ?Inler Yaylasi (Şebinkarahisar - Giresun), Northeast Turkey

Basit Öğe Kaydı
dc.contributor.authorBozkaya, Gülcan
dc.contributor.authorGökçe, Ahmet
dc.date.accessioned2024-10-26T17:54:12Z
dc.date.available2024-10-26T17:54:12Z
dc.date.issued2003
dc.departmentSivas Cumhuriyet Üniversitesi
dc.description.abstractinler Yaylasi lead and zinc deposits are the typical examples of the vein type lead-zinc deposits occur within the Eastern Black Sea Region in Turkey. In the study area; Upper Cretceous volcanics, Tertiary granitoids, Eocene and Plio-Quaternary aged volcanics are outcropped. Ore deposit are developed as ore veins along the the faults in the Upper Cretaceous volcanics. Three ore veins in E-W direction were identified and they were cut and displaced by NW-SE trending faults. Microscopic studies revealed that the ore veins contain sphalerite, galena, pyrite, chalcopyrite, fahlore group minerals, chalcosite and covellite as ore minerals, and quartz and calcite as gangue minerals. Sphalerite and galena are dominant. Opaque minerals occur among the quartz crystals. This indicates that suifide mineralisation occurred later than quartz crystalization. The sulphur isotope composition (? 34S) of sphalerite and galena ranges from -3.9 to +0.4‰ CDT and that of H2S in hydrothermal fluids was calculated around -5.0‰. These sulphur isotope values are light compared to that of direct magmatic activities and it may be assumed that the sulphur in the sulfide minerals was possibly leached from the Upper Cretaceous volcanics by epigenetic hydrothermal fluids, rather than having direct magmatic relation to Tertiary granitoids and the younger volcanics occuring in the area. The oxygene isotope composition of the water in the mineralising fluid was calculated using the ? 18O values analysed in quartz and homogenisation temperature values measured during the fluid inclusion studies. The calculated ? 18O values ( +4.2 to +6.7‰ (SMOW)) and ? D values analysed in inclusion fluid (-83.0 to -59.0 % (SMOW)) plot in or at the meteoric water line side of the the magmatic water box on the ? D - ? 18O diagram and indicate that mineralising fluid was dominated by magmatic water and minor amount of meteoric water might have been mixed.
dc.identifier.endpage84
dc.identifier.issn1301-2894
dc.identifier.issue27
dc.identifier.scopus2-s2.0-0041346232
dc.identifier.scopusqualityQ4
dc.identifier.startpage75
dc.identifier.urihttps://hdl.handle.net/20.500.12418/27060
dc.indekslendigikaynakScopus
dc.language.isotr
dc.relation.ispartofYerbilimleri
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subject?Inler Yaylasi (Giresun); Lead-zinc; Stable isotope geochemistry
dc.titleStable isotopes (S, O and H) studies at the lead-zinc deposits in the ?Inler Yaylasi (Şebinkarahisar - Giresun), Northeast Turkey
dc.title.alternative?Inler Yaylasi (Şebinkarahisar-GIRESUN) kurşun-çinko yataklarinda kararli izotoplar (O, H ve S) jeokimyasi incelemeleri
dc.typeArticle

Dosyalar

Koleksiyon

Scopus İndeksli Yayınlar Koleksiyonu