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.'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 '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.