THE ROLE OF THE AEROMAGNETIC SURVEYTO TWELVE OREPROSPECTING TARGET AREAS IN PERU
ZHANG Yun 1,ZHU Zi-qiang 1,Yan Wen-jie 2
1.Information Engineering Physics College of Central South University, Changsha 410083,China; 2.East China Mineral Exploration and Development Burean, Nanjing 210000
对秘鲁Acari、Huarato、Hierro Acari、Pampa de pongo等重点区域,借助MapGIS进行数据提取,将航磁异常场进行了各种航磁数据处理。对比处理前后的磁场特征,在重点地段进行了磁异常反演计算,结合地质资料解释重点矿区的构造及矿床的分布情况。通过验证发现,实际开采到的铁矿分布重点区与反演分析所得结论相吻合,证实了航磁方法的准确性和有效性。
MapGIS was used to perform data extraction in such key areas of Peru as Acari, Huarato, Hierro Acari and Pampa de pongo. Various kinds of aeromagnetic data-processing were performed for aeromagnetic anomalies, and characteristics of the magnetic field before and after the processing were compared with each other. In combination with geological data, the distribution of the structures and ore deposits in the key ore districts was explained. Test and verification show that the practically exploited key ore districts are coincident with the conclusions reached by inverse analysis, thus proving the accuracy and effectiveness of the aeromagnetic method.
张云, 朱自强, 严文婕. 航磁在秘鲁12区找矿靶区中的作用[J]. 物探与化探, 2010, 34(3): 367-371.
ZHANG Yun, ZHU Zi-Qiang, YAN Wen-Jie. THE ROLE OF THE AEROMAGNETIC SURVEYTO TWELVE OREPROSPECTING TARGET AREAS IN PERU. Geophysical and Geochemical Exploration, 2010, 34(3): 367-371.