综合物探、化探、地质方法在安徽东至铅锌金多金属矿的应用

Exploration and Application of Comprehensive Geophysics,Geochemistry and Geologyl Method in Evaluating of Dongzhi Pb-Zn mine,Anhui

柴山评价区位于扬子陆块北缘之沿江成矿带与九华山—西天目山成矿带接合部位,区内矿床(点)发育,与区域性构造关系密切。文章以安徽省东至铅锌金多金属矿调查评价工作为基础,采用地球物理找矿方法、地球化学找矿方法、地质找矿方法等,通过综合分析,研究认为:柴山评价区具Au、Ag、As、Sb、Bi、Hg、Cu、Pb、Zn等异常,且异常面积大、强度高,具有明显的三级浓度分带,指示成矿有利部位;激电中梯和激电测深成果对该区预测深部矿体有较好的效果;经钻探验证发现矿化体多个,矿体与综合异常具良好的对应关系,取得了较好的找矿效果。

The Chaishan evaluation area is located at the junction of the Yangtze Metallogenic belt and the Jiuhuashan-Xitianmu Shan metallogenic belt,and the deposits( point) in the area are closely related to the regional tectonics. Based on the investigation and evaluation of Dongzhi Pb-Zn gold deposit in Anhui Province,by means of geological prospecting method,geochemical prospecting method,geophysical prospecting method and so on,through comprehensive analysis,it is concluded that: Chaishan evaluation zone have Au,Ag,as,Sb,Bi,Hg,Cu,Pb,Zn and other anomalies,and the normal’s area of is large,andthe strength ishigh,with a distinct three-level concentration band,indicating the favorable site of mineralization;the results of IPintermediate gradient and IP sounding have better effect on predicting the orebody’s depth in this area. The ore body has a good relationship with the comprehensive anomaly by drilling verification,and the ore-prospecting result is better.