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锑是我国的特色矿产 ,扬子地块南缘锑矿带是世界上最大的锑成矿带。铅同位素研究表明 ,该带锑矿床中矿石铅的组成变化较大 ;在铅同位素组成图解中 ,线性分布明显 ,但它不具有等时线意义 ,而是由低放射性成因铅和高放射性成因铅两个端元混合所致。矿石铅属壳、幔混合铅。成矿作用应发生于开放体系之中 ,深部幔源物质可能参与了锑的成矿作用。
Antimony is a characteristic mineral in China. The antimony metal belt in the southern margin of the Yangtze block is the largest antimony metallogenic belt in the world. Lead isotope studies show that the compositions of lead in the ore vary greatly with the antimony deposit. In the lead isotopic composition diagram, the linear distribution is obvious, but it does not have the meaning of isochronism. It is composed of low-radioactive lead and high-radioactive lead Due to the mixing of two end elements. Lead lead shell, mantle mixed lead. Mineralization should occur in an open system, and deep mantle-derived materials may be involved in the mineralization of antimony.