在岩溶发育的灰岩地区,一般山峦奇特陡峭,沟壑纵横交错。在这种地区,地面电法勘探受地形影响较大,被第四系沉积物覆盖的岩溶地区,虽然地形的影响较小,然而下伏基岩的起伏变化大,结果也不会令人满意。尤其在工业区,由于高压线、工业管道、工业游散电流等干扰,使异常更加复杂 Limestone areas in the development of karst, the general mountain peculiar steep, criss-cross ravines. In this area, terrestrial electrical prospecting is greatly affected by the terrain. Although karst areas covered by Quaternary sediments are less affected by topography, the underlying bedrock changes greatly and the result is unsatisfactory . Especially in industrial areas, the anomalies are more complicated due to the interference of high-voltage lines, industrial pipelines and industrial scattered currents