云南省昵博铜镍多金属矿床地质特征及找矿前景分析

昵博铜镍多金属矿床位于哀牢山地体、红河裂陷槽、屏边西畴山弧构造交汇派生的多条数百千米长北西向深大断裂收敛区，有利于铜镍矿成矿岩体的产出.矿区铜镍矿（化）体产于元古宇瑶山群第一段灰紫色混合岩化石榴夕线黑云片岩夹混合质夕线黑云片麻岩中，两矿（化）体露头均具较强的糜棱岩化，矿（化）体产于糜棱岩化带中.通过综合研究矿床地质特征，提出矿体与层间构造、叠加构造密切相关.对矿区内发现的两个矿化程度较高的露头进行勘查，分析了矿床的找矿前景，并指出了下一步勘查方向和合理的勘查手段.

GEOLOGICAL CHARACTERISTICS AND PROSPECTING TARGETS OF THE NIBO COPPER-NICKEL POLYMETALLIC DEPOSIT IN YUNNAN PROVINCE

The Nibo polymetallic deposit is situated in the intersection of Ailaoshan terrain,Honghe rift trough and Pingbian Xichou arc structure,where a few west-trending deep faults are derived,favorable for the copper-nickel metallogenesis.The Cu-Ni ore （mineralization） bodies occur in the grey purple migmatized garnet sillimanite biotite schist with migmatitic sillimanite biotite gneiss of the first member of Proterozoic Yaoshan group,with strong mylonitization.With study on the geological characteristics of the deposit,it is believed that the orebodies are closely related to the interlayer structures and superimposed structures.On the basis of analysis on previous exploration results,the follow-up prospecting targets are pointed out and the proper exploration methods are proposed.