CSAMT法在甘肃寨上金矿区南矿带找矿中的应用  

Application of CSAMT Method in Prospecting of Southern Ore Belt of Zhaishang Gold Fields,Gansu Province

作　　者：郑振云[1] 刘召军[2] 郑洁[3] 

机构地区：[1]武警黄金第二总队,河北廊坊065000 [2]武警黄金第五支队,陕西西安710100 [3]北京交通大学,北京100044

出　　处：《黄金科学技术》2014年第2期13-16,共4页Gold Science and Technology

基　　金：黄金专项经费项目"甘肃省岷县寨上矿区岩金普查"(编号:201404020501)资助

摘　　要：CSAMT法是在大地电磁法的基础上发展起来的一种人工源电磁法,具有抗干扰能力强、受地形影响小、分辩率高、勘探深度大及穿透性强等优点,是矿产勘查中广泛使用的物探方法。寨上金矿区南矿带位于背斜的核部,矿脉产状不稳定,钻孔布设难度较大。为了查清矿脉产状及延深情况,采用CSAMT法测量,发现高阻体3处,低阻带3处。已知的31、32和41号脉产于高阻体与低阻带接触部位,根据CSAMT测量成果布设钻孔ZK43-1见矿,找矿效果明显,值得推广应用。CSAMT method is an artificial source frequency domain sounding method developed on the basis of MT and AMT,It has the characteristics of strong anti-interference capacity,small topographic effects,high resolution,large probing depth and strong penetrating,and is widely used in mineral exploration.The orebody is located at the core of anticline and the attitude of veins is instability.The laid of drilling holes has great difficulty. In order to find out the distribution and extension of ore veins,CSAMT were used for prospecting,three high-resistivity bodies and three low-resistivity zones were detected.The known No.31,32 and 41 veins located between the high-resistivity body parts and the low-resistivity zone.According to the measure result of CSAMT, we laid ZK43-1 drilling hole.It proves integrated methods having synergic effect and worth spreading.

关 键 词：可控源音频大地电磁法 物探方法 地质特征 礼岷成矿带 寨上金矿 甘肃省 

分 类 号：P618.51[天文地球—矿床学]