瑶岗仙钨多金属矿田位于南岭成矿带中部,由瑶岗仙黑钨矿床、青山里铅锌矿床以及和尚滩白钨矿床组成.野外地质调查显示,这3个矿床空间相邻,矿体产状和控矿因素相近.利用辉钼矿Re-Os同位素测年,获得瑶岗仙黑钨矿床与和尚滩白钨矿床的辉钼矿Re-Os等时线年龄分别为(158±1.2)Ma(n=7,MSWD=1.3)和(160±3.3)Ma(n=6,MSWD=2.7),表明两种钨矿化是同期形成的,与瑶岗仙复式岩体的成岩事件在时空上吻合,是南岭地区第2次大规模成矿事件的典型代表.3个矿床的矿石矿物(黄铁矿、闪锌矿、辉钼矿)δ34S值介于-1.8‰～+1.4‰之间,分布集中且接近零值,表明成矿物质来源于岩浆.综合上述特征,这3个矿床系同一岩浆成矿作用,在成矿岩体不同距离、不同部位发生不同类型金属矿化的产物.%The Yaogangxian tungsten polymetallic ore-field consisting of Yaogangxian tungsten deposit, Qingshanli lead-zinc deposit and Heshangtan scheelite deposit, is located in the central part of the Nanling metallogenic belt. Detailed field geological investigation shows that three deposits are rather close in space, occurrence of ore body and ore-control factors. Re-Os dating of molybdenite was performed to determine the age of mineralization of Yaogangxian tungsten deposit and Heshangtan scheelite deposit. Re-Os isochron ages of molybdenite from the Yaogangxian tungsten deposit and the Heshangtan scheelite deposit were obtained by (158 ± 1.2)Ma ( n = 7, MSWD = 1.3 ) and ( 160 ± 3.3 ) Ma ( n = 6, MSWD= 2.7 ), respectively. It indicates that two kinds of tungsten mineralization were formed in the same period, and also highly anastomosed with Yaogangxian composite pluton in time and place, and are part of the second large-scale mineralization in Nanling. The δ34S values of ore mineral ( pyrite, sphalerite, molybdenite) from three deposits show variations from - 1.8‰ to + 1.4‰.The characteristics of spatiality, chronology and sulfur isotopes, together suggest these three deposits are different parts of the same magmatic ore-formation.
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