电阻率测深法在阿拉尔盆地划分咸、淡水层的应用

THE APPLICATION OF THE RESISTIVITY SOUNDING METHOD TO THE DIFFERENTIATION OF SALT WATER BED FROM FRESH WATER BED IN ALA'ER BASIN

通过分析、总结电阻率测深法在青海阿拉尔盆地划分咸、淡水层的应用实例,着重论述了电测深曲线形态变化与含水层矿化度高低的对应关系,指出了曲线特征点(拐点等)是准确划分咸、淡水层的关键电性异常标志,阐明了该方法在划分第四系咸、淡水层的有效性及应用前景。

Based on analyzing and summarizing the examples of applying the resistivity sounding method to the differentiation of the salt water bed from the fresh water bed in Ala^r basin, this paper emphatically discusses the relationship between the variation of the electric sounding curve and the mineralization intensity of the aquifer. It is pointed out that the characteristic points （ e. g. , inflection points） of the curve are key electric anomaly indicators for the correct differentiation of the salt water bed from the fresh water bed. The effectiveness and the application vista of this technique in differentiating Quaternary salt water bed from fresh water bed are also expounded.