航电在高山区找矿快速突破中的应用

为了寻找一种快速、高效的地球物理找矿手段,在我国西部高山地区——青海省五龙沟开展了大比例尺航电示范测量,采用高精度测量和随地形缓起伏飞行的方式获得了区内高质量的航电数据,通过数据处理,结合物性资料分析了示范区的电磁场特征,进行了异常筛选及异常解释工作,结合快速钻探查证实现了示范区找矿工作的"当年飞行、当年查证、当年见矿"的找矿工作新模式的快速突破.从完成的航电调查工作与找矿效果来看,在高山地区开展航电测量具有速度快、精度高、费用低和找矿效果显著等特点,具有广泛的应用前景和推广价值.

The application of the airborne electromagnetic method to rapid prospecting breakthrough in high mountain areas

In order to find an effective means for quick prospecting breakthrough in high mountain areas,the Airborne Survey and Re-mote Sensing Center of Nuclear Industry carried out large-scale airborne electromagnetic demonstration survey in the Wulonggou gold deposit which is located in the Tibetan Plateau. With high-precision measurement and slow undualating flight suitable for the terrain sit-uation,qualified raw data were acquired, and then detailed data processing, analysis of petrophysical parameters of rocks, and fast drilling verification were carried out,which made it possible to find a series of metal minerals,thus opening up a new prospect for air-borne electromagnetic survey. The rapid prospecting breakthrough of 'three simultaneous' is realized. According to the demonstration survey and the prospecting effects,the large-scale electromagnetic method has the advantages of rapidness,high precision,low cost and significant effect in high mountain areas,thus having broad application and promotion prospect in such areas.