The effects of applying integrated geophysical method to the prospecting for the Jiangcheng concealed lead and zinc deposit in Yunnan Province
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摘要: 为加快江城岩脚矿区探矿工作步伐,取得找矿突破,采用综合物探方法进行勘查. 首先,通过大功率激电中梯扫面,初步圈定了3个目标靶区;然后,采用音频大地电磁测深法研究靶区的控矿构造及其在深部的延伸情况,从而寻找成矿有利部位;在推测的成矿有利部位进行钻孔验证,共发现隐伏铅锌矿体3个,矿区较原来新增122b+333类工业硫化铅锌矿矿石量576.60万t. 该矿区勘查结果表明,激电法与音频大地电磁测深法的联合应用,可以快速圈定深部铅锌多金属矿化异常体,并为后期探矿工程部署提供依据,是寻找同类型矿床的有效方法之一.Abstract: In order to accelerate the prospecting work for the Yanjiao mining area in Jiangcheng City, the authors made full use of the integrated geophysical method. First, the authors delineated three exploration target areas by using high power TD IP method. Then the authors studied the ore-controlling structure in the target and its extension through AMT to find favorable metallogenic area. Drilling ver-ification led to the discovery of three concealed Pb-Zn orebodies. 5.766 million tons of the 122 b+333 class industrial sulfur lead-zinc resources are added to the reserves of the ore deposit. The results obtained by the authors show that we can quickly identify lead-zinc a-nomaly body, which provides the basis for further prospecting engineering through IP method and AMT method. This is one of the effec-tive methods to find the same type of ore deposits.
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Key words:
- high power TD IP method /
- AMT /
- ore-controlling structure /
- lead-zinc deposit /
- concealed deposit /
- GAO Ming-Shan
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