GEOLOGY, GENESIS AND PROSPECTING INDICATORS OF SUNJIAGOU LEAD DEPOSIT IN LIAONING PROVINCE

The Sunjiagou lead deposit is mainly hosted in the fine-medium-grained biotite granodiorites of Cengshan Unit, belonging to epithermal type, with the orebodies mainly controlled by F2 and F3 faults. The main metallic minerals of lead ore are galena and sphalerite, with minus of pyrite, chalcopyrite, etc. The ores are in idiomorphic granular, cataclastic-brecciated and vein-filled textures, with brecciated, disseminated and massive spotted structures dominated and a few massive and vein structures. The lead grade of No. 1 orebody ranges mainly from 0.314% to 1.309%, averagely 0.601%, while that of No. 2 orebody is 0.468%-1.460%, averagely 0.776%, which are delineated as low-grade lead ore according to industrial index.