摘要
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.
出处
《物探与化探》
CAS
CSCD
北大核心
2010年第3期367-371,共5页
Geophysical and Geochemical Exploration
基金
国家高科技发展计划(863计划)项目(2007AA06Z102)资助
关键词
航磁
化磁极
延拓
反演
铁矿
秘鲁
eromagnetic survey
reduction to the pole
continuation
inversion
iron deposit
Peru
