摘要
地球物理的测深方法广泛使用于水电工程与固体矿产地质勘探工作中。应用差分法原理进行数据处理，信息提取是提高电阻率测深的解释推断，它具有去掉背景场，突出局部场的作用；ρｍ测深断面正演概念形象鲜明，能提供各种地质体的电场信息，从而有利于从场的形态、场的结构来研究异常性质。文中探索了二阶、三阶差分法的基本原理，并应用于水电工程坝址勘查，获得较好的效果。
Gepohysical sounding method is widely applied to gydroelectric engineering and solid mineralresources exploration. Applying the principle of difference method to data processing and informationextraction can raise the interpreting and inferring capacity of resistivity sounding，and removebackground field and highlight local field.The direct concept of ρ~m sounding crase section is clcar inimages and can provide electric field in for mation of various geological bodies， which is useful toresearch anomalous property from the shape and structure of field．The authors also discuss the basicprinciples of the second and third order difference methods and apply them to the exploration of thehydroelectric engineering dam site and get good results.
出处
《广西地质》
1994年第1期55-62,共8页
Guangxi Geology
基金
广西地矿局"七五"科技项目
关键词
电阻率测深
地球物理
正演
固体矿产
地质勘探工作
地质体
差分法
水电工程
坝址
断面
：electric sound，apparent resistivity（ρ_s），second order difference method（） ，thirdorder difference method，real null-value point，false null-value point, inflexion point The paper from the research results of the project“Arrangement and Interpret
