摘要
综合分析区域地质、磁法、化探、重力资料及相临矿区岩石矿石电、磁性特征基础上,通过靶区优选,提出金厂河磁异常具有寻找大型多金属硫化物矿床的前景。经1∶1万地质测量、1∶1万磁法及大功率激电中梯测量、偶极测深、对称四极测深、沟系次生晕测量及原生晕测量后,圈定目标矿区约3km2。综合解译后确定:陡岩电磁性体为顶部埋深250m～270m,厚130m,走向长650m,倾向延深约800m的多金属硫化物地质体。经三个钻孔施工验证,均已见到厚大铜铁矿体,实现隐伏矿床找矿的重大突破。
Based upon the analysis of regional geology, magnetic, geochemical,gravity data and the electrical, magnetic characteristics of rock and ore in neighboring region, according to the target selection, we put forward that the Jinchanghe magnetic anomaly has the ore-prospecting potentiality of large multimetallic sulfide deposit.By the 1∶10 000 geological survey,1∶10 000 magnetic,large power induction electrical mid-gradient survey, couple pole sounding, symmetrical quadrupole sounding, secondary and original halo survey, we have outlined the Douyan magnetic electric anomaly about 3km^2 with maximum 1 480nT and Ms>2%.According to the comprehensive interpretation,the Douyan electromagnetic anomaly is formed by multimetallic sulfid with depth 250m～270m,thickness 130m,length 650m and dip extension 800m.And the thick Cu-Fe orebody has been discovered in 3 drill holes, which is an important breakthrough in the ore-prospecting for the blind ore deposit.
出处
《云南地质》
2004年第2期188-198,共11页
Yunnan Geology
关键词
隐伏矿床
铜铁多金属
综合找矿
重大突破
保山金厂河
Blind Ore Deposit
Cu-Fe Multimetal
Comprehensive Ore-Prospecting
Important Breakthrough
Jinchanghe,Baoshan
