知识与财富的链接
[摘要]大冶铁矿项目属2004 年度危机矿山接替资源勘查项目九个试点项目之一。该项目的实 施,不但取得了深部找矿的重大突破,解决了接替资源问题,同时也为全国危机矿山深部找矿工作的开 展起到了示范作用。论文重点介绍了1/1 万高分辨率航空磁测、1/2000 高精度地面磁测、井中三分量磁 测等磁法工作在勘查工作中的应用效果,特别是“空、地、井冶磁测联合勘查,深部弱信息提取技术,精细 反演技术、井-地磁测联合反演技术等几个方面值得借鉴和推广。初步统计,大冶铁矿参考磁异常布置 的32 个钻孔中,19 个孔见矿。因此,本文认为在深部找矿(-600m)过程中,磁法工作依然大有可为。
Abstract:The Daye iron mine prospecting is one of the nine experimental subjects for the Prospecting of Crisis Mines in 2004郾Through this subject, deep concealed ores are exposed and it has become an example for other crisis mines郾This paper presents the application of 1/10000 aeromagnetic, 1/ 2000 high-resolution surface-magnetic, and borehole magnetic prospecting conducted in the Daye iron mine郾It focuses on the following aspects: combi鄄 nations of “aero-surface-borehole冶magnetic prospecting, pick-up technique on weak information of deep mines, precise inversion techniques, and joint inversion techniques of surface and borehole magnetic data郾All these techniques are worth to be further applied for reference and expanding郾The prelimi鄄 nary statistics shows that among the 32 drills which were designed with reference to the magnetic abnormities in the Daye iron mine, 19 drills have revealed concealed ores郾It demonstrates that magnetic prospecting can contribute much in efforts to search for concealed ores at depth ( ~ 600m) in exhausted mines郾
