高精度磁测资料的三维反演及找煤地质意义  

3 DIMENSION INVERSION OF HIGH PRECISION MAGNETIC DATA AND ITS GEOLOGICAL SIGNIFICANCE OF COAL MINE PROSPECTION

作　　者：朱自强[1] 何继善[1] 张新兵[1] 

机构地区：[1]中南工业大学资源环境与建筑工程学院

出　　处：《中南工业大学学报》1998年第4期307-310,共4页Journal of Central South University of Technology(Natural Science)

基　　金：中国有色金属工业总公司科研基金

摘　　要：采用精细的正演和拟神经网络反演技术对邯郸矿区北李庄井田的高磁资料进行正演、反演研究和资料分析．针对本地区磁场的特点，用先进的位场正演和分离技术将本区上、下层火成岩的磁场进行了分离．在此基础上对下层火成岩磁场进行三维反演，确定了下层火成岩的底界埋深及厚度，并据此提供了进一步找煤的勘探孔位．在其他物探方法难以取得找煤效果的情况下，该方法保证了高精度磁测工作在本区的有效性．By using the pseudo artificial neural network inversion technique, high precision magnetic data of Handan coal field in Hebei Province of China are processed. According to the characteristics of the magnetic field in this area, the magnetic fields of the upper layer volcanic rock and the low layer volcanic rock are separated by using advanced potential field separation technique; then, the lower layer volcanic rock′s depth and thickness are inverted by using 3 dimension models. We provide a confirmation hole, and the drilling result is identical with the inversion result. In that case other geophysical survey methods are very difficult to get a good coal survey result, but the high precision magnetic prospection and the pseudo artificial neural network inversion technique are effective in this area.

关 键 词：煤矿床 找煤 地质意义 磁测数据 三维反演 

分 类 号：P618.110.8[天文地球—矿床学]