| Duolong ore concentrate area in Tibet,located in wuma village of gaize county,tectonic position in western bangong lake-nujiang suture zone,It is a important porphyry copper gold deposit.In this Mineralization zone,compared duolong,bolong copper gold deposits with yulong,qulong,xiongcun and jiama deposit,which are discovered very lately,degree of mining work and the research degree is relatively weak.The writer collected and fully digested the regional geology,ore concentration area exploration results and the related paper,on the basis of tectonic metallogeny theory as the guide,relying on the project related work,the author has carried on mining field geological survey and the detailed research drilling logging,and has got a detailed understanding of the basic geological characteristics of it,especially the ore-controlling tectonic of the basin and fan pattern interphase pattern,it is concluded the following understanding:(1)Duolong ore concentration area is a north-south extrapolation of nappe fan,in terms of stratigraphic structure,overall performance as a synclinorium.(2)The nappe fan can be divided into south and north fan and shaft belt,south and north fans are compose of the "S","Z" type fold,"W" type fold is developed in shaft belt.(3)The interior pattern of the nappe fan respectively controls the south,middle and north three nearly east-west tectono-magmatic metallogenic belt.The subordinate fold,axial plane joints and fracture system control the ore bodies and mineralization. |
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