综合物探在清水百家金多金属矿床勘查中的应用  

Application of Comprehensive Geophysical Exploration in the Exploration of Baijia Gold Polymetallic Deposit in Qingshui

作　　者：陶迎冬 强德霞[2] TAO Yingdong;QIANG Dexia(Gansu Nonferrous Geological Survey Institute,Lanzhou 730000,China;Gansu Forestry Polytechnic,Tianshu7i 41020,China)

机构地区：[1]甘肃省有色地质调查院,甘肃兰州730000 [2]甘肃林业职业技术学院,甘肃天水741020

出　　处：《甘肃冶金》2023年第4期124-128,共5页Gansu Metallurgy

摘　　要：甘肃省清水百家金多金属矿区断裂构造发育,主要控矿位置为硅质岩与蚀变花岗岩接触带,主要赋矿岩石为角砾状硅质岩,结合区域基础地质及地球化学特征,本次开展了以地面高精度磁测剖面、双频激电剖面、可控源音频大地电磁测深、单极-偶极激电测深多种方法组合的综合物探找矿实践探索,其结果显示该物探方法技术组合能够切实反应矿区的客观地质现象并能有效指导找矿突破。The fault structure is developed in the Baijia gold polymetallic mining area in Qingshui,Gansu Province.The main ore-control location is the contact zone between siliciclastic rocks and altered granite,and the main ore-bearing rocks are brecciated siliciclastic rocks.Combining with the basic geological and geochemical characteristics of the region,the comprehensive physical prospecting practice of ground high-precision magnetic profiling,dual-frequency excitation profiling,controlled-source audio geomagnetic bathymetry and monopole-dipole excitation bathymetry was carried out.The results show that this combination of physical prospecting methods and technologies can effectively reflect the objective geological phenomena of the mining area and can effectively guide the breakthrough of mineral search.

关 键 词：清水百家金多金属矿 综合物探 接触蚀变带 赋矿岩石 角砾状硅质岩 视幅频率 视电阻率 

分 类 号：P631[天文地球—地质矿产勘探]