ABSTRACT: The Upper Cretaceous Baskil and Bilaser Tepe Magmatites and Pliocene sediments crop out throughout the study area within the Eastern Taurus Orogenic belt. On the basis of petrogrophical and geochemical studies, it has been concluded that the Baskil Magmatites belong to the volcanic-arc granitoids whereas the Bilaser Tepe Magmatites belong to the post-collisional granitoids. Two types of mineralization have been recognized, to be associated with the Bilaser Tepe Magmatites. First type is a porphyry-type copper mineralization vvhich has developed in granitoid, granite porphyry, and dacite porphyry phases of the Bilaser Tepe Magmatites and in diorites of the Baskil Magmatites making contacts with them. Second type is characterized by Au-and Cu-bearing auartz veints hosted in granites of the Bilaser Tepe Magmatites. First type of mieralization is accompanied by potassic, phyllic, auartz-sericite-carbonate and propylitic alteretion assemblages. Mineralization mainly occurs in quartz-carbonate veins or as coatings along fissures and cracks and as disseminations inplaces wherephyllite and qartz-sericite-carbonate alterataions prevail. Main ore minerals are pyrite, arsenopyrite, chalcopyrite and bismuthinite. Quartz veins belonging to the second type containpyrite, chalcopyrite with lesser amount of gold. These veins are envelopedby argillic and silide alteretions.