小波多尺度分析在重力资料处理中的应用  

Application of wavelet multi-scale analysis in gravity data processing

作　　者：常成 金旺林 

机构地区：[1]河南省有色金属地质矿产局第一地质大队,郑州450016

出　　处：《矿产勘查》2016年第4期654-656,共3页Mineral Exploration

基　　金：中国地质调查局资源评价项目(编号:1212011120774)资助

摘　　要：近些年来,随着地球物理新技术、新方法的不断涌现,数据处理也不断发展,小波变换就是数学和地球物理相结合的产物。它把不同的频道和频率成分或多种不同的尺度组合成小波函数,再把信号经过伸缩、平移等一系列变换合成为任意细节信号分析研究。文章通过重力资料小波多尺度分析在河南某地区铝土矿普查中的应用研究,结合铝土矿成矿规律及特点,总结出一套适合铝土矿勘查的新方法、新思路,能准确发现深部含矿岩系及地层层序,为合理优化钻孔设计提供良好的技术支撑。With the constantly emerging of the new geophysical technology and new methods in recent years, the geophysical data processing methods are also developed. The wavelet transform is a combination of mathematics and geophysical approach. The wavelet transform can be taken as a signalf（x） which is decomposed into a number of different channels and the frequency component or components of a variety of different scales, and by stretching, translating gathered f（x） to be analyzed in any detail. The wavelet a- nalysis can play an important role in the decomposition of gravity and magnetic anomalies. The paper introduced the application of wave- let muhi-scale analysis in the data processing of gravity data in the Henan bauxite deposit area. In combination of study on metallogenic regularities and characteristics, a suite of new prospecting clues and methods were summarized for bauxite prospecting which can accu- rately identify deep ore-bearing rock series and the stratigraphic sequence, and provide a sound technical support for optimizing test drilling.

关 键 词：铝土矿 多尺度变换 重力异常 小波分析 

分 类 号：P631.1[天文地球—地质矿产勘探]