云南省金平县长安金矿床控矿因素及深部找矿效果  

Ore-controlling factors and deep prospecting effect of the Chang an Gold Depositin Jinping County,Yunnan Province

作　　者：秦正举 温德跃 周癸武 邓志凌 周晗欣 Qin Zhengju;Wen Deyue;Zhou Guiwu;Deng Zhiling;Zhou Hanxin(Yunnan Gold Mining Industry Group Co.,Ltd.;Yunnan Land and Resources Vocational College)

机构地区：[1]云南黄金矿业集团股份有限公司 [2]云南国土资源职业学院

出　　处：《黄金》2023年第7期61-66,共6页Gold

基　　金：云南省国土资源厅地勘基金项目(20110001);云南省地矿局找矿项目(云金集团资源[2021]2号)。

摘　　要：长安金矿床位于哀牢山南段,金平—大坪Au-Pb-Zn化探异常中部。矿体受区域主断裂F5与分支断裂F6制约,控矿因素主要为构造、岩浆岩及地层等。通过与区域内成矿特征相似的典型金矿床进行对比,认为长安金矿区深部具有良好的探矿潜力,经过钻探、坑探工程对深部具有较好探矿潜力的区域进行验证,结果显示:在矿区深部发现蚀变辉绿岩型金矿体及蚀变碎屑岩型、砂屑白云岩型、构造角砾岩型铅锌银矿体,新增探明+控制+推断矿石量46.7万t、金金属量1 824 kg、平均金品位3.90×10-6,探矿效果较好,可为进一步探矿提供支撑。The Chang an Gold Deposit is located in the southern section of Ailao Mountain,in the central part of the Jinping-Daping Au-Pb-Zn geochemical anomaly.The ore body is controlled mainly by the regional main fault F 5 and the branch fault F 6,with controlling factors such as tectonics,magmatic rocks,and formations.By comparing with typical gold deposits in the region with similar metallogenic characteristics,it is believed that the deep part of the Chang an Gold District has good prospecting potential.Through drilling and excavation projects to verify the areas with good prospecting potential in the deep part,the results show the discovery of altered diabase-type gold deposits,altered detrital rock-type,sandy dolomite-type,and tectonic breccia-type lead-zinc-silver ore bodies in the deep part of the mining area.The newly discovered+controlled+inferred ore quantity is 467000 t,with a gold metal quantity of 1824 kg and an average gold grade of 3.90×10-6.The prospecting effect is good and can provide support for further prospecting.

关 键 词：断裂控矿 控矿因素 化探异常 工程验证 深部 找矿效果 

分 类 号：TD15[矿业工程—矿山地质测量]