【摘要】 目标勘查区煤层赋存规律不清,难以通过地表调查和常规的技术方法准确搞清煤系地层控制因素、空间位置、形态等重要参数.本文采用EH4电导率成像系统、GDP-32Ⅱ多功能电测系统,结合亚米级差分GPS开展测量.针对研究区地质特征,结合研究区物探异常特殊形态,预测了研究区可能的煤系地层空间分布.研究区煤系地层EH4测量电阻率具有较低特点(100~300Ωm)、GDP-32Ⅱ激电测量具有明显高充电率特点(最高可达38%),为下一步研究工作及工程验证提供指导.实践证明,采用EH4、GDP-32Ⅱ能够高精度预测煤系地层的空间分布特征,值得推广.更多还原

【Abstract】 According to previous data,the rule of coal beds under the target area is not clear.It is difficult to make clear their controlling factors,positions,configuration and so on through the surface investigation and the conventional technical methods.We have mainly used EH4 Conductivity Image System and GDP-32Ⅱ Geophysical Data Processor combined with differential GPS(Trimble Pro XRS) to survey the coal formation stratum.With geological properties of the area and special shape of geophysical anomalies,we have predicted the anomalies of possible coal formation stratum,and summarized the features of EH4 resistivity(100~300Ωm) and GDP-32Ⅱ charging rate(maximum value is 38%) which provide some instructions for the next step research work and the project confirmation in the target area.The practice demonstrates that EH4,and GDP-32Ⅱcan precisely predict the space distribution characteristics of complicated coal formation strata,and is worth to be applied further.更多还原