f Examples of resistivity imaging using ME-100 resistivity field acquisition system

In spite of dramatic improvement in field acquisition, technology during the past decade (ground penetrating radar - GPR, frequency domain - FEM - and time domain equipment - TEM supported by newly developed techniques for processing and presentation of data, electrical surveying techniques (in particular resistivity) still remain basic tools for examining subsurface features in geological, engineering geological, hydrogeological, environmental and archaeological projects. Conventional resistivity techniques are relatively quick and easy to use and usually provide satisfactory results. Heaviness of this approach appears where detailed survey at small electrode spacings is required - often the amount of data acquired is determined by time constraints rather than more technical considerations. More recently, systems have been developed which employ the use automated switching facilities. These systems allow rapid data acquisition at different electrode spacings to be carried out along the same survey line. The technique has already been applied to variety of geological applications with considerable success.