老挝波乔省某磁铁矿区磁法勘探

Magnetic prospecting on magnet mining exploration area of Laos bokeo province

勘查区位于老挝西北部之波乔省,地表风化严重、浮土掩盖厚、深林茂密、基岩露头少,虽然局部地段出露有大量的铁帽,但不敢判断该区是否有大规模的磁铁矿.为此,我们采用110000地面高精度磁法测量以了解磁铁矿的有无、范围、延伸、规模.后期勘探阶段开展2.5D人机交互正反演工作以了解深部磁铁矿的有无.结果表明,在老挝西北部地质勘查程度低的地区开展高精度磁测扫面工作是寻找磁铁矿产行之有效的方法,能够解决基础地质问题,矿山勘查问题,后期运用2.5D人机交互正反演能够解决一定的矿层预测工作.

The exploration area is located in the northwestern of Laosbokeo province, surface weathering serious,dust cover thick.dense woods,deep bedrock outcrop.while local area exposed a lot of gossans, but we still can＇t judge whether this area have large-scale magnetite. Therefore, the earlier survey stage we use 1 ： 10000 high- precision ground magnetic survey in order to understand the magnetite, range, with or without , extension, scale. The late exploration stage to carry out 2. 5D man-machine interactive inversion work to understand the deep magnetite with and without. The results show that, high precision magnetic scanning work was a effective method to find magnetite in the area of low degree of geological exploration in the northwestern of Laos, delineated 2 strip anomaly zone and 13 piece magnetic anomaly, able to solve the geological problems, mine exploration problem, by the late 2. 5D man-machine interactive inversion method to solve certain ore prediction, To provide a reference to the deep looking for blind ore bodies. From the author engaged in geological work experience in this region and Study on metallogenic condition, Speculated the similar magnetic anomalies possibility from the Yunnan Xishuangbanna Mengla County iron ore area between Laos bokeo houayxay.