江西省银山次火山热液型铜铅锌矿床研究进展

New progress of research on Yinshan volcano hydrothermal Cu-Pb-Zn deposit, Jiangxi Province

江西银山矿床属铜铅锌多金属矿床,矿体主要产在中-新元古界地层双桥山群地层之中,与燕山期构造—岩浆活动有着成因上的密切联系,为一个特大型火山-次火山热液矿床。最新研究成果表明,银山含矿岩体通过多期的作用形成,主要有3个旋回,其中第2旋回为主要成矿期。银山的含矿岩体形成于中侏罗世,180-170Ma,主量、微量元素与稀土元素特征显示,银山火山-次火山岩具埃达克岩属性。

Jiangxi Yinshan deposit is a epithermal Cu-Pb-Zn deposit, whose ore bodies are mainly occureed in the Middle Upper Proterozoic Shuangqiaoshan group, and has a close conetcion with Yanshan tectonic magmatic activity, is a large volcanic--sub-volcanic hydrothermal deposit.The latest research results show that the Yinshan ore rock formed by multiple period, there are 3 main cycles, and second cycles are the main mineralization stage. The ore bearing rocks were formed during the Middle Jurassic period, 180-170 Ma, characteristics of trace elements and rare earth elements show that the Yinshan igneous rocks have some similar properties with adakite.