激发极化法在准噶尔盆地含水区测定中的应用

采用激发极化法对准噶尔盆地盆五井区进行了含水区定位研究，通过分析视电阻率单点曲线和视极化率单点曲线，对研究区范围内的地质及地层的含水情况进行初步判断，识别了含水层及水层的顶界埋深；在这一基础上用二维直流电法反演软件对视电阻率资料进行了二维反演，使之更接近地层真电阻率。视极化率剖面图的分析表明盆五井区存在一定的地下水资源，其中P200201、P200202、P200207线所经过的区域的含水性较好。第三系上新统上独山子组（N₂d₂）地层为强含水层，第三系上新统下独山子组（N₂d₁）为弱含水层。盆五井区含水层的特点是高阻含水、低阻不含水，这反映出该区的砂岩沉积较为疏松，地下水的矿化度偏低。推测该研究区地下水的水质较好。

Application of the Induced Polarization Method on the Measurement of the Water-Contained Area in the Junggar Basin

The method of induced polarization (IP) is used to analyze the location of the water contained area in the Junggar Basin By analyzing the single point curves of the apparent resistivity and the apparent polarization, the initial information of the geology about the water contained situation and the geological strata were recognized as well as the aquifer and the depth of the top layer in the study area Based on the above, the 2D direct current electric inversion software is used to deduce the apparent resistivity to be close to the real resistivity of the stratum In the analytical process, it can be found that there are some water resources in Basin Five Well, and in the area traversed by the lines of P200201, P200202 and P200207, the water content is higher The upper Dushanzi Group of the Pliocene Formation(N 2 d 2 )is the ample aquifer, and the lower Dushanzi Group of the Pliocene Formation(N 2 d 1 )is the scanty aquifer The characteristics of the aquifer in Basin Five Well are that the water exists in high resistance layer while does not in low resistance layer It is revealed that the sandstone sediment is loosen in this area and the degree of mineralization in groundwater is low, and the groundwater quality is typically good according to the degree of mineralization