There are enormous variations in the electrical characteristics of rocks and minerals according to many factors. Electrical measurements were taken to define the weight of these variations. Water saturation effect (partially and fully) on electrical characteristics of loose clayey sandstone samples was studied. Measurements were taken at room temperature (~ 19 °C) and a frequency range of (0.0005 Hz–100 kHz). Changes in water content are the only factor that controls changes in electrical properties. Change in frequency with water content is an important factor for electrical properties. At relatively low frequencies and low saturations, an interface between grains (charge accumulation at grain surfaces and bound water) is the dominating factor. Also, the bulk material properties at high frequency and full saturations are the controlling factors. At moderate saturations, there are surface charge displacement and exchange of excess ions between grains. For high saturations, due to existence of high mobilities of excess ions, the diffusion or membrane polarization is the main controlling mechanisms. The water used in the sample is 4 g of NaCl/100 g of distilled water. The electrical conductivity of the samples increases gradually with the addition of saline water. With an increase in frequency, variations of conductivity may be negligible.

中文翻译：

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盐度和水分对易碎黏土砂岩电性能的影响

根据许多因素，岩石和矿物的电学特性存在巨大差异。进行电气测量以定义这些变化的权重。研究了水饱和度（部分和全部）对松散黏土砂岩样品电学特性的影响。在室温（〜19°C）和频率范围（0.0005 Hz–100 kHz）下进行测量。含水量的变化是控制电性能变化的唯一因素。含水量引起的频率变化是影响电性能的重要因素。在较低的频率和较低的饱和度下，晶粒之间的界面（晶粒表面和束缚水上的电荷积累）是主要因素。同样，高频下的块状材料特性和完全饱和也是控制因素。在中等饱和度下，晶粒之间存在表面电荷置换和过量离子交换。对于高饱和度，由于存在过量离子的高迁移率，扩散或膜极化是主要的控制机制。样品中使用的水为4克氯化钠/ 100克蒸馏水。随着盐水的加入，样品的电导率逐渐增加。随着频率的增加，电导率的变化可以忽略不计。随着盐水的加入，样品的电导率逐渐增加。随着频率的增加，电导率的变化可以忽略不计。随着盐水的加入，样品的电导率逐渐增加。随着频率的增加，电导率的变化可以忽略不计。