Yerbilimleri

1301-2894 2687-2978

Hacettepe Üniversitesi

Sulfur and Lead Isotopic Compositions of the Akgüney (Ordu) Cu-Pb-Zn Deposit in the Black Sea Region, Turkey

Ünal-çakır

Esra

JEOLOJİ MÜHENDİSLİĞİ BÖLÜMÜ Gökçe

Ahmet

JEOLOJİ MÜHENDİSLİĞİ BÖLÜMÜ

09 01 2018

39 2 131 140 02 12 2018 07 25 2018

1976

Yerbilimleri

The Akgüney Cu-Pb-Zn deposit is a vein type hydrothermal Cu-Pb-Zn deposit in the Black Sea Region of Turkey. This depositis hosted by Upper Cretaceous andesitic rocks. The deposit consists of seven veins with varying thicknesses in the investigatedarea. The primary mineral paragenesis includes pyrite, galena, chalcopyrite, sphalerite, fahlore, quartz and calcite.The δ34S values of sulfide minerals (pyrite, chalcopyrite, sphalerite and galena) range from -0.63 ‰ to 3.02 ‰, with an averageof 1.22 ‰. These δ34S values and the calculated δ34SH2S values for H2S dissolved in hydrothermal fluids are suggesting a homogeneousmagmatic source.The galena samples have 206Pb/204Pb ratios from 18.533 to 18.745, 207Pb/204Pb ratios from 15.633 to 15.657 and 208Pb/204Pb ratiosfrom 38.710 to 38.772. These values suggest an orogenic source for lead.

Akgüney deposit Cu-Pb-Zn Eastern Black Sea region lead isotope sulfur isotope

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