The Duobaoshan lead-zinc mine in Xinjiang is newly discovered mineral deposit, which formed in biological clastic limestone and karst breccia of Cretaceous Tielong Formation. The ores are often in shapes of stratiform-like, capsular and veinlike. Wall rock alterations are mainly carbonation, dolomitization and silicification. Fine-grained sulfide ore shows blocks-like, fine veinule, disseminated and fractured. The characters of Trace elements and REE in the host and in wall rocks are similar. The composition of S in mine ranges from δ34SvCDT=-10.55%o ~ to 1.01%o, the composition of Pb in ore lies about 206Pb/204Pb= 18.739 8-18.743 3,207Pb/204Pb= 15.702 5-15.704 0,208Pb/204Pb=39.092 9-39.097 1. Isotope of S and Pb indicates that the source of ore is from limestone of Cretaceious Tielong Formation. The composition of C and O in calcite of ore ranges are between 813Cpdb=3.44%o~5.09%o,18OSmow= 23.09%o~26.79%o respectively, which indicate the CO2 in hot fuild mainly from marine carbonate. The chemical composition in fluid inclusion shows that the temperature of ore-forming fluid lies between 207℃-262 ℃, the salinity lies 6.30%~7.73% NaCl. In summary, the ore-forming fluid is from hot sea brine, ore genesis falls in MVT type.%新疆和田县多宝山是西昆仑地区新发现的一处重要铅锌矿床,矿体呈似层状、不规则囊状、脉状,产于白垩系铁隆滩组碳酸盐岩岩溶角砾岩、生物碎屑灰岩中,围岩蚀变主要有碳酸盐化、白云石化、硅化及泥化等.矿石为块状、细脉状、浸染状、角砾状等构造.矿石矿物与脉石矿物中具极相似的微量元素组构,矿石中铅、锌硫化物δ34Sv-CDT=- 10.55‰～-1.01‰,矿石Pb同位素组成206Pb/204Pb=18.739 8～18.743 3,207Pb/204Pb=15.702 5～15.704 0,208Pb/204Pb=39.092 9～39.097 1,成矿物质来源于白垩系铁隆滩组碳酸盐岩.矿石中方解石δ13CPDB=3.44‰～5.09‰,18OsMOW=23.09‰～26.79‰,热液中CO2来自海相碳酸盐岩去碳酸作用.流体包裹体均一温度为207℃～262℃,盐度为6.30％～7.73％,说明成矿流体来源于海水热卤水,矿床具MVT铅锌成矿特点.
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