砂岩裂隙水的富水特征及其工作方法

Characteristics of Fissure Aquifer in Sand Shale Area and Its Exploration

砂页岩地区的富水性一般比较差，但在有构造的部位，情况就有所变化。笔者据不同地质条件，总结出以遥感、地质、水文地质、地貌等为基础，结合视电阻率测深法和激发极化法的找水方法，并归纳了不同富水带的水文地质特征，曲线特征、工作方法及效果。

It has been found that the fissure aquifer may exist in the ectonic zone of the sand shale strata in permian and triassic systems.The writer has divided the above fissure aquifer into three kinds according to long expericence in working:“weathering crust aquifer”,which lies in the basal surface of the sand shale rock;“fault aquifer”, which lies around or within the fault basin where the sand shale rock of the permian or triassic systen is buried;“fold aquifer”,The exploration ways put forward by the writer are as follows:for the “weathering crust aquifer”,the triggering polarization method is suggested in the area where the data is lacking,while the analogy method comparing gelolgical data with electrical resistivity is suggested in the area where the data is enough comparatively.For the “fault aquifer”,the remote sensing,geological and geomorphic data are suggested.And for the “fold aquifer”,the following is suggested,finding the fold location first in the regional structure map,and its kern in the course of geological exploitation;then arranging the sounding or triggering polarization point for selecting the well position.Many examples and good results obtained are given respectively for illustrating each case.