Geological Characteristics and Prospect for Exploration of Butujinzi Lead-Zinc Ore Deposit in Sichuan

Butujinzi lead-zinc ore deposit is situated in the metallogenetic area extending across Sichuan-Yunnan-Guizhou provinces.Strata in the mining area are a series of carbonatite sediment formations.The ore bodies occurred within the upper members of Dengying Formation and are controlled by both formation lithology and structure.At present,the maximum dip extension of I and II lead-zinc ore bodies have not been controlled.The ore bodies are all oxide ones.By constructing the exploratory trenches for several kilometers,concluding of the exploration and comparing with classic lead-zinc deposit at home and abroad,we argue that this deposit belongs to a subclass of MVT lead-zinc ore deposit.Through comparing with the surrounding deposits,the paper indicates that the large and high-grade sulphide ores probably exist in the deep of the deposit,expecting to be a medium lead-zinc ore deposit.