关键词: 劣质地下水区, 物探勘查理论与模式, 应用效果

Abstract: In nature,poor quality groundwater of high fluorine,high arsenic,and high salinity(referred to as the"three highs water"),is always associated with each other,and exists in fine-grained sedimentary formations such as clay,loam and etc.The fine grained soil and high salinity groundwater are featured with low resistivity.So,by delineation of low resistivity areas,the distribution of fine-grained rock formations and high salinity groundwater can be mapped,thus to achieve the goal of mapping potable water in large particle stratum in poor quality groundwater region.In this paper,through the research of the mathematical relationship of the stratum resistivity,groundwater resistivity and groundwater porosity,and groundwater salinity,the geophysical prospecting model of potable groundwater in poor quality groundwater region based on high resolution resistivity method was established.We applied this model to several areas in Xinjiang Uygur Autonomous Region and achieved approving effects.The geophysical model offers a new technological concept for poor quality groundwater prospecting.

Key words: poor quality groundwater region, geophysical prospecting theory and application, application effect