综合物探在四川会理拉拉M163-1航磁异常查证中的应用  

Application of integrated geophysical methods to M163-1 aeromagnetic anomaly inspection of Lala,Huili,Sichuan province

作　　者：邱林[1] 周军[1] 刘晓葳[1] 曹礼刚[1] 王品峰 

机构地区：[1]成都理工大学地球物理学院,成都610059

出　　处：《物探化探计算技术》2016年第5期603-609,共7页Computing Techniques For Geophysical and Geochemical Exploration

基　　金：中国地质调查项目(12120113095100)

摘　　要：为了调查拉拉M163-1航磁异常的精细磁异常特征与深部电性结构特征,采用地面高精度磁法与音频大地电磁测深法,并结合区域重磁资料与地质资料对异常区开展了综合物探查证工作。通过区域重磁、地面高精度磁法与音频大地电磁测深资料的综合分析,得出了与前人不同的认识,并初步确定了M163-1航磁异常的精细磁异常特征、异常体的电性结构特征。这为该异常的找矿远景调查评价提供了重要的物探依据。There are large and medium scale iron and copper deposit at M162 aeromagnetic anomaly in Lala copper,such as Luodang,Tianshengba,Shilong,and so on.But it has not been found larger scale iron and copper deposit on the southern of Lala copper deposit,at M163-1aeromagnetic anomaly which is the same scale and intensity to M162.And the predecessors thought that M163-1aeromagnetic anomaly is caused by concealed and magnetitite-bearing allalinite.So,in order to survey the fine magnetic anomaly characteristics and deep electrical structure characteristics of Lala M163-1aeromagnetic anomaly,we used ground high precision magnetic method and audio magnetotelluric method and combined with the regional gravity and magnetic data to carried out comprehensive geophysical prospecting inspecting work.Through comprehensive analysis of regional gravity and magnetic data,ground high precision magnetic method and audio magnetotelluric method data,we obtained different understanding to the predecessors;And the fine magnetic anomaly characteristics of M163-1aeromagnetic anomaly,the electrical structure characteristic of abnormal body was determined preliminarily.It provide important geophysical gist for oreprospecting prospective study of the anomaly.

关 键 词：航磁异常 地面高精度磁法 音频大地电磁测深法 

分 类 号：P631.2[天文地球—地质矿产勘探]