瞬变电磁法在浑江盆地松树煤矿外围的应用  

Application of Transient Electromagnetic Method at Periphery of Songshu Coal Mine in Hunjiang Basin

作　　者：张作新[1] 杨尚华[2] 杨忠习[1] 杨广进 裴忠 田雅静[1] 田舍[3] 

机构地区：[1]吉林省煤田地质物探公司,长春130033 [2]吉林省煤炭工业局,长春130021 [3]北京市地质勘察技术院,北京102218

出　　处：《吉林大学学报（地球科学版）》2006年第S2期27-29,32,共4页Journal of Jilin University：Earth Science Edition

摘　　要：浑江煤田松树煤矿外围找煤项目主要是扩大煤炭储量,该区山高林密,地表条件差,地质构造复杂,侵入体多,形成高阻电性层。通过地面地质工作了解岩性变化规律,应用瞬变电磁法,工作便捷、观测精度高、不受高阻屏蔽。用其基础理论,进行数据处理。利用钻井电性地质资料对比,从已知到未知进行连续剖面解释,从定性、定量解释,确定火山岩的分布范围,划分煤系地层区段,提供建议孔位,从而完成地质任务,为后期工作提供物理信息。The aim of the program for exploring coal at periphery of Songshu coal mine,Hunjiang coalfield is mostly to enlarge the coal reserves.The bad surface conditions,with high montains,dense forest,and complex geological structure as well as more intrusive mass formed high resistivity layer at the site.We have understood the lithology by surface geological work.It's convenient,with high observation precision and not being guarded by the high resistivity layer to use the transient electromagnetic method.The data handles depending on the basic theory.With comparing well electric data with known geologic data,the continuous profile has been interpreted from known data to unknown,the distribution region of lava has been mapped,the coal-bearing series has been divided and the suggestion hole has been provided,which made us accomplish the plan and supply geophysical information for the further work.

关 键 词：瞬变电磁法 视电阻率 剖面解释 高阻屏蔽 

分 类 号：P631.3[天文地球—地质矿产勘探]