综合物探方法在萨热克铜多金属矿勘查中的应用
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摘要
文章以萨热克砂砾岩型铜多金属矿勘查为例,运用综合物探方法进行找矿研究。大功率时间域激电扫面可快速获得全区的激电异常,圈定异常查证区。音频大地电磁测深能获得地下深部的电性特征,对地层岩性进行划分,达到深部地质填图的目的。单极——偶极测深工作可对激电异常做更精细的解释,指导钻探验证。综合这3种物探方法,构建工作区地下地质结构构造、圈定和评价铜矿体富集空间,取得了较好的找矿效果。
Taking a case study on the exploration of Sareke glutenite type copper polymetallic deposit,the comprehensive geophysical prospecting method was applied. The IP anomalies through the whole deposit area can be obtained quickly by using the highpower time domain spectrum induced polarization survey,and the verified anomaloys areas can be outlined in a rapid way. Audio frequency magnetotelluric sounding method can obtain electrical characteristics of the deep underground,which can used for classification of lithological units and for the purpose of deep geological mapping. Pole-dipole IP sounding survey can make a further explanation for IP anomalies,which will guide the drilling engineering verification. By using above-mentioned three kinds of geophysical exploration methods,the underground geological structures were constructed,and the spatial position of copper enrichment was delineated and evaluated,and sounding prospecting effect was achieved in the Sereke copper deposit area.
Taking a case study on the exploration of Sareke glutenite type copper polymetallic deposit,the comprehensive geophysical prospecting method was applied. The IP anomalies through the whole deposit area can be obtained quickly by using the highpower time domain spectrum induced polarization survey,and the verified anomaloys areas can be outlined in a rapid way. Audio frequency magnetotelluric sounding method can obtain electrical characteristics of the deep underground,which can used for classification of lithological units and for the purpose of deep geological mapping. Pole-dipole IP sounding survey can make a further explanation for IP anomalies,which will guide the drilling engineering verification. By using above-mentioned three kinds of geophysical exploration methods,the underground geological structures were constructed,and the spatial position of copper enrichment was delineated and evaluated,and sounding prospecting effect was achieved in the Sereke copper deposit area.
引文
[1]傅良魁.磁激发极化法探矿理论的几个问题[J].地球物理学报,1979,22(2):156-168.
[2]张赛珍,王庆乙,罗延钟.中国电法勘探发展概况[J].地球物理学报,1994,37(s1):408-423.
[3]袁学诚.金属矿地球物理勘探的三十年[J].地球物理学报,1979,22(4):364-369.
[4]李春成,朱春生,郑晓惠,等.激发极化法在大架金矿床中的应用效果[J].黄金,2006,7(1):10-13.
[5]郭毅.音频大地电磁法(AMT)在某铜镍矿勘查中的应用[J].新疆有色金属,2011,(3):24-26.
[6]葛为中.绘制电测深等值断面图的新方法[J].勘察科学技术,1997,(3):58-60.
[7]唐容富,李继贤,秦荣娥,等.改进的三极装置激电测深勘查微细浸染型金矿的应用效果[J].工程地球物理学报,2009,6(3):305-310.
[8]滕吉文.强化开展地壳内部第二深度空间金属矿产资源地球物理找矿、勘探和开发[J].地质通报,2006,25(7):767-771.
[2]张赛珍,王庆乙,罗延钟.中国电法勘探发展概况[J].地球物理学报,1994,37(s1):408-423.
[3]袁学诚.金属矿地球物理勘探的三十年[J].地球物理学报,1979,22(4):364-369.
[4]李春成,朱春生,郑晓惠,等.激发极化法在大架金矿床中的应用效果[J].黄金,2006,7(1):10-13.
[5]郭毅.音频大地电磁法(AMT)在某铜镍矿勘查中的应用[J].新疆有色金属,2011,(3):24-26.
[6]葛为中.绘制电测深等值断面图的新方法[J].勘察科学技术,1997,(3):58-60.
[7]唐容富,李继贤,秦荣娥,等.改进的三极装置激电测深勘查微细浸染型金矿的应用效果[J].工程地球物理学报,2009,6(3):305-310.
[8]滕吉文.强化开展地壳内部第二深度空间金属矿产资源地球物理找矿、勘探和开发[J].地质通报,2006,25(7):767-771.