安徽淮北煤矿富水区被动式超低频电磁探测结果解析  

Analysing the Result of the Passive SLF Electromagnetic Exploration Experiments at a Mine Water-rich Area in Huaibei City,Anhui Province

作　　者：李百寿[1] 秦其明[1] 叶霞[1] 张自力[1] 张泽勋[1] 

机构地区：[1]北京大学遥感与地理信息系统研究所,北京100871

出　　处：《地质与勘探》2009年第4期431-436,共6页Geology and Exploration

基　　金：国家"863"计划(编号:2007AA12Z163)和(编号:2006AA06Z233);北京市自然科学基金(编号:4082013)联合资助

摘　　要：被动式超低频电磁法是一种在地表直接接收来自地下3～3000Hz频段的天然超低频电磁信号,通过对接收信号的处理和解释实现对地下的岩性界面、构造、资源和能源进行探测,拥有巨大开发潜力的地球物理勘探新方法。首先简述了富水区的被动式超低频电磁探测机理,其次结合安徽省淮北市煤矿富水区的探测实例来说明该方法的适用性和局限性。在数据处理上采用曲线叠加平均、平滑和特征深度标定的方法,同时采用了测深曲线和视电阻率等值断面进行地质解释。解释结果和已知钻孔资料对比发现,无论在测深曲线上,还是在断面图上,富水区均具有明显的特征。A method that using dedicated Instruments direct accept natural frequency （3- 3000Hz） electromagnetic field on the ground is called Passive Super Low Frequency （SLF） Electromagnetic Method. Through by deal with incept signal and understanding realized to exploration subsurface lithology interface,conformation ,resource and energy. The new method in the field of exploration physical geography has immense latent force to develop. First, the theory of this exploration method was introduced. Next, an exploration example performed at a mine in Huaibei City, Anhui Province, was given to prove the validity of the method. Using multi - duplicate curve superposition on average, smooth and feature depth demarcating method. Introduce exploration curve？ and apparent resistivity equivalence section was made. coMParison the interpretation result and means of bore reveal that no matter bathymetric curve, sectional view and water - rich area are all have prominent feature.

关 键 词：被动式超低频电磁法 富水区探测 曲线叠加 深度标定 地质解释 

分 类 号：P618.11[天文地球—矿床学]