Akademik Veri Yönetim Sistemi
9. Jeokimya Sempozyumu, Aydın, Türkiye, 17 - 20 Ekim 2022, ss.104-109
Çorak gold deposit is located in Artvin (NE Türkiye). The gold mineralization is structurally controlled
and consists of stockwork of quartz vein carrying variable amounts of gold and sulfides. The Co /Ni
ratios in pyrite in Çorak has been studied using EPMA to determine the genesis of the ore mineralization.
It turns out that the average ratios of Co/Ni in late stage pyrites range from 0 to 1.68 with zero gold.
Whereas, the early pyrites’ Co/Ni values span from 3 to 5 with an average gold concentration of 0.02
ppm. Data reveal that the early pyrite (stage I) carrying gold, originate from highly concentrated gold
and base metal hydrothermal fluid. Whereas, the late pyrite (stage II) does not contained any gold and
may precipitated from an evolved fluid mixture, consisting of leached pyrite from sedimentary host rock
and less rich hydrothermal fluid