摘要
在内蒙古东乌旗某铁锌矿床的勘查中,先后采用了磁法、大功率激电法和可控源音频大地电磁测深法:即利用磁法异常圈定异常区,在此基础上应用大功率激电法推测矿区矿化范围及构造展布情况,最后利用可控源音频大地电磁测深法反演电阻率断面图解释地下构造产状及矿(化)体赋存空间。根据综合电磁法资料处理成果,解释矿区存在3个高磁异常,以及与其相对应的北东向致矿构造带,并以DJ1构造带为对象,确定了矿体位置及断层F1、F2的产状。85、95二条测线上布设的11个见矿钻孔表明,矿体赋存位置、产状及构造形态与综合电磁法勘查结果基本吻合。
During the prospecting in an iron-zinc deposit in the Eastern Ujimqin Banner, Inner Mongolia, magnetic method, high-power induced polarization method and controlled-source audiomagnetotelluric sounding method have been used orderly. That is using magnetic anomaly to delineate anomalous region, then using high- power induced polarization method to speculate mineralization range, structural extending, finally using controlled-source audiomagnetotelluric sounding inversion resistivity section to interpret underground structure occurrence and orebody（mineralization） hosting space. Based on integrated electromagnetic data processed results,have interpreted 3 high magnetic anomalies and corresponding NE metallotectonic belt. Taking DJ1 tectonic belt as target, determined orebody position and occurrences of faults F1 and F2, 11 ore intersected boreholes on lines 85 and 95 have shown that the orebody position, occurrence and structural form basically coincided with integrated electromagnetic prospecting results.
出处
《中国煤炭地质》
2015年第12期71-75,共5页
Coal Geology of China
基金
科技部国家重大科学仪器设备开发专项"大深度三维电磁探测技术工程化开发"课题(2011YQ05006011)资助
关键词
磁法
大功率激发极化
可控源音频大地电磁测深
高磁异常
致矿构造带
隐伏矿产
铁锌矿床
内蒙古东乌旗
magnetic method
high-power induced polarization method
controlled-source audiomagnetotelluric sounding method
metallotectonic belt
hidden minerals
iron-zinc deposit
Eastern Ujimqin Banner
Inner Mongolia
