动力滑翔机航磁系统在浅覆盖区地质调查中的应用

Application of aeromagnetic system of power glider in geological survey of shallow coverage area

在甘肃省定西市华家岭一带浅覆盖区,利用动力滑翔机航磁系统开展高精度大比例尺航磁测量,研究区内磁异常分布特征,然后结合地质资料分析成矿规律,圈定找矿靶区,为下一步地质调查工作提供了地球物理依据。同时总结了在类似地质条件下开展航磁工作的有效飞行高度选择依据。应用结果表明,动力滑翔机航磁系统能够有效采集浅覆盖区的磁场数据,且可沿地形起伏飞行,采集的磁场数据比无人机磁测系统更贴近地面磁场数据。因此动力滑翔机航磁系统在地质调查工作中具有明显的优势。

In the shallow coverage area of Huajialing,Dingxi City,Gansu Province,the aeromagnetic system of power glider is used to carry out high-precision large-scale aeromagnetic survey to study the distribution characteristics of magnetic anomalies in the area.Combined with geological data the metallogenic regularity is analyzed and the prospecting target area is delineated.It provides a geophysical basis for the next geological survey.At the same time,the effective selection basis for flight height in aeromagnetic survey work under the similar geological condition is summarized.The application result shows that the aeromagnetic system of power glider can fly along the undulating terrain,and can effectively collect the magnetic field data in the shallow coverage area.The collected magnetic field data is closer to the ground magnetic field data than the UAV magnetic measurement system.The aeromagnetic system of power glider has an obvious advantage in the geological survey.