云南双龙含铜斑岩的岩石学特征及其找矿前景

云南双龙含铜斑岩产于澜沧江深大断裂东侧，处于中国西南部新生代斑岩铜矿成矿带南段，赋矿岩体为强烈蚀变的石英闪长斑岩，围岩地层为白垩系红层。双龙含铜斑岩体已强烈水白云母化、伊利石化和硅化。矿化与硅化、绿泥石化有关。预测斑岩体下部硅化绢云母化带具有较好的成矿前景。

PETROLOGICAL CHARACTERISTICS AND ORE-PROSPECTING POTENTIALS OF COPPER-BEARING PORPHYRY IN SHUANGLONG OF YUNNAN

Copperbearing porphyry in Shuanglong of Yunnan located in eastern side of Lancangjiang deep major fault structure occurs in southern part of porphyry metallogenic belt of cenozoic era in Southwest China,the host rock of which is highly altered quartz dioriteporphyrite and the country stratum is red beds of Cretaceous system.Shuanglong copperbearing porphyry is highly hydromuscovitized,illitized and silicified.The mineralization is closely associated with silicification and chloritization of rocks.It is expected that there exists good oreforming potential in silicified and chloritized zones in lower part of this porphyry.