音频大地电磁测深在贵州马坪地区金刚石勘查中的应用  

Application of audio frequency magnetotelluric sounding in diamond exploration in Maping district,Guizhou Province

作　　者：孙远彬 SUN Yuan-bin(The Third Exploration Team of Shandong Coalfield Geologic Bureau,Tai′an 271000,Shandong,China)

机构地区：[1]山东省煤田地质局第三勘探队,山东泰安271000

出　　处：《资源信息与工程》2021年第3期60-62,66,共4页Resource Information and Engineering

基　　金：贵州镇远马坪地区金刚石调查评价(1212011220416)。

摘　　要：贵州镇远马坪金刚石调查区资源前景广阔,在掌握研究区地质条件和岩石电磁性特征的基础上,开展音频大地电磁测深数据采集与处理、数据质量评价、模型分析和异常分析等,研究结果表明:AMT数据质量真实可靠,采用AMT法寻找低阻岩体管道理论上是可行的,共圈定与岩体有关的浅地面低阻异常11个,发现5个管状低阻体异常。The Maping diamond survey area has broad prospect.On the basis of mastering the geological conditions and rock electromagnetic features of the study area,audio magnetotelluric sounding data acquisition and processing,data quality evaluation,model analysis and anomaly analysis were carried out.The results showed that the quality of AMT data was true and reliable,which meant that AMT method was theoretically feasible to find low resistance rock pipeline.11 shallow ground low resistivity anomalies related to rock mass were delineated,and five abnormal tubular low resistivity bodies were found.

关 键 词：马坪 金刚石 音频大地电磁测深 钾镁煌斑岩 

分 类 号：P631[天文地球—地质矿产勘探]