综合物探在高海拔深切割地区金多金属矿勘查中的应用

Integrating Geophysical Prospecting for Gold Polymetallic Deposits in High-Altitude and Deep-Cut Terrains

以东昆仑中段窑洞山东金多金属矿为例,开展高海拔深切割地区大比例尺地面高精度磁法测量和激电中梯剖面测量工作,圈出磁异常27处和高阻异常带33条,推断出构造蚀变破碎带10条;经探槽和钻孔揭露验证,激电中梯异常带与构造蚀变破碎带完全吻合,圈定26条金矿体和1条铅锌矿体;物探剖面能快速发现弱磁性体和含矿石英脉,指出成矿的有利地段;高磁异常区和高阻异常带是寻找构造蚀变岩型金多金属矿的重要的物探找矿标志。

Taking the Yaodong Shandong Gold Polymetallic Mine in the middle section of the East Kunlun Mountains as an example,large-scale high-precision ground magnetic measurement and induced polarization middle-depth profiling were carried out in high-altitude and deep-cut terrains.27 magnetic anomalies and 33 high-resistance anomaly zones were delineated,and 10 tectonic alteration and fracture zones were inferred.Through exploration and drilling,it has been verified that the abnormal zone of the induced polarization ladder is completely consistent with the structural alteration and fracture zone,and 26 gold ore bodies and 1 lead-zinc ore body were delineated.Geophysical profiles can quickly detect weak magnetic bodies and ore-bearing veins,indicating favorable areas for mineralization;high magnetic anomaly zones and high-resistance anomaly zones are important geophysical indicators for searching for structurally altered rock type gold polymetallic deposits.