差分技术在自动地电阻率法资料解释中的应用  

Application of difference method in automatic earth resistivity data interpretation

作　　者：韩德品[1] 李丹[1] 梁爽[1] 侯彦威[1] 

机构地区：[1]煤炭科学研究总院西安研究院,陕西西安710054

出　　处：《煤田地质与勘探》2009年第3期61-63,67,共4页Coal Geology & Exploration

基　　金："十一五"国家科技支撑计划重点项目(2007BAK24B02)

摘　　要：自动地电阻率法在探测地下老窑巷道等地质异常体中,当异常体的埋深增加时,其相对视电阻率曲线的异常会逐渐变得平缓而且模糊。为此,对视电阻率曲线求差分,以突出深部异常,将实测数据中的地质信息充分提取出来。有限元仿真和应用结果表明,一般电阻率勘探方法资料解释中的差分技术,在同样属于电阻率方法的自动地电阻率探测中仍然是适用的。In detection of underground old kiln roadways and geological bodies by automatic earth resistivity method, the anomalies gradually become smoothly and fuzzy with their depth. Therefore, difference method of apparent resistivity is used to distinguish deep anomaly and to extract geological information included in measured data as much as possible. The results of finite element simulation and application show that difference technology adopted in common resistivity methods is available for automatic earth resistivity prospecting that belongs in resistivity method also.

关 键 词：自动地电阻率法 差分技术 老窑巷道 分辨率 

分 类 号：P631[天文地球—地质矿产勘探]