工业集料资源的开采常常因含有高粘土废料而受到损害。这些沉积物作为覆盖岩层、夹层或分散的矿体存在于集合体构造例如沟槽填充物之中。在评价区域资源和详细探明储量时,对高粘土沉积物进行地质素描是很重要的。设备岩层导电率(其倒数是电阻率)测量的传统方法是使用电极阵列。近几年来,便携式测量仪的发展促进了地层导电率的快速测量。在粒状集料和粘性泥砂或粘土等废料之间存在着一个明显不同的导电率。这种差别可使两种岩层很容易地区分开 The extraction of industrial aggregate resources is often compromised by the inclusion of high clay waste. These deposits exist as overburden, interlayers or dispersed ore bodies in aggregate structures such as trench fillings. In assessing regional resources and detailed proven reserves, it is important to make a geological sketch of high clay sediments. The traditional method of measuring the conductivity of a device’s rock (the inverse of which is resistivity) is to use an electrode array. In recent years, the development of portable gauges has led to the rapid measurement of formation conductivity. There is a distinctly different electrical conductivity between the granular aggregates and wastes such as viscous silt or clay. This difference makes it easy to distinguish the two rock formations