南方硬岩地区EH-4资料处理的若干问题——以沙子江矿床为例  

A discussion on some EH-4 measurement problems in hard-rock areas in southern China: A case study of the Shazijiang deposit

作　　者：孔志召[1,2] 吴勇[2] 

机构地区：[1]吉林大学地球科学学院,吉林长春130000 [2]核工业航测遥感中心,河北石家庄050002

出　　处：《物探与化探》2016年第4期804-808,共5页Geophysical and Geochemical Exploration

基　　金：中国核工业地质局物探测量专项(201436)

摘　　要：南方硬岩型铀矿是我国重要的产铀区,多年来开展了大量的EH-4测量工作,但其复杂的外在条件给资料的处理解释带来了困难。文中分析了EH-4测量在南方硬岩地区应用中的问题,以沙子江矿床某线为例,尝试采用谱文件读取、阻抗张量分解、静校正及地形校正等手段,运用MT-Pioneer软件进行了二维反演,从而得到了与实际地质体相符的反演结果,为今后在该类地区EH-4数据处理提供参考。Hard rock-hosted uranium deposits in southern China constitute an important producer of uranium ore districts. In the past years,a lot of EH-4 measurement work was carried out; nevertheless,during the information processing in the application process,complex external conditions in southern China makes it difficult to perform explanation. In this paper,with a line of the Shazijiang deposit as a study case,the authors analyzed some EH-4 measurement problems,and tried to use such means as spectrum file reading,impedance tensor decomposition,and static correction and terrain correction on the basis of the MT-Pioneer software. The authors conducted a two-dimensional inversion,and the inversion results were consistent with the features of actual geological body,thus providing a reference for future EH-4 data processing in such areas.

关 键 词：南方硬岩地区 EH-4测量 铀矿 数据处理 MT-Pioneer 

分 类 号：P631[天文地球—地质矿产勘探]