物探方法在研究河北平原第四系浅层水和咸水体分布规律中的应用

本文介绍了在分析河北平原近三十年来所取得的丰富电测深和电测井资料基础上,结合水文地质和遥感资料进行综合研究,所总结出的第四系不同岩性沉积物、各种矿化度地下水、土壤积盐临界深度内不同程度盐渍化土的电性参数,以及利用物探资料解决河北平原浅层水文地质分区、山前平原浅层水富水性分区、查明咸水体分布规律、咸水区内浅层淡水发育情况及盐渍土分区范围等水文地质问题时,所取得的成果。反映了河北平原第四系含水综合地质体的区域性电性特征,显示了物探方法解决有关水文地质问题的良好应用效果。

THE APPLICATION OF GEOPHYSICAL PROSPECTINGTECHNIQUES TO THE INVESTIGATION INTODISTRIBUTION OF QUATERNARY SHALLOW WATERAND SALINE WATER BODIES IN HEBEI PIAIN

Based on an analysis of abundant electrical sounding and electrical logging data obtained in Hebei plain in the past thirty years, in combination with hydrogeological and remote sensing data, this paper summarizes the electric parameters of Quaternary sediments of different lithologic characters, under ground water of various mineralization intensities and soils with different salini ties within the critical depth of salt accumulation in soil it also describes the outcomes obtained by utilizing geophysical prospecting data to investigate such hydrogeological problems as the shallow-layer hydrogeological division of Hebei plain, the division of shallow water enrichment in piedmont plain, the distribution of saline water bodies, the development of shallow fresh water in the saline water area and the division of salinized soils. These results reflect regional electric properties of the Quaternary water-beaiing composite geolo gical bodies in Hebei plain and demonstrate the satisfactory effects of geophy sical prospecting method in solving the related hydrogeological problems.