Behaviour, geochemical distribution, and mode ofoccurrence of gold and silver in Hle Sar Cheshmeh porphyrycopper deposit, Kerman, Iran

Based on this study, the avcfiige gold and silver graJcs in the SaT Chesbmeh porphyry copper deposil arc 0.06 and 1.22 gil re.chr('39')ipcct ivcly which arc very different from the o nes repon ed previously. In the bioti lic andes ite and a!ICrcd phyllic/potassic samples from the siock, the high positin: correlation between the hypogene copper and gold grades ( r=0.81 ), and gold chr('39')lIld silw.f grades (1"=0.6 1), and gold and si lver with the hypogene copper grade (r;:::U.72), indicatc:( I) the contemporaneous deposition of C(lpper, gold ami silver, <lnd (2) gold is probably prescnt in the form of exsolution, invisihle solid solution and nalive or elect rum within the chalcopyri te gwins. Within the secondary sulfide enrichment zone, the gold grade is two times more than the hypogene grade, Silver also indicates the highest concentration within the lellched/oxidc and secondary sulfide enrichment w nes. This st udy indicm(:s th ~l t the Sar Chcshmeh deposit is a gold and silver poor porphyry COPP!;;I - molybdenum deposit.