期刊名称：International Research Journal of Environmental Sciences
电子版ISSN：2319-1414
出版年度：2016
卷号：5
期号：2
页码：1-11
语种：English
出版社：International Science Community Association
摘要：The GIS based evaluations of geochemical studies of groundwater were carried out in the metamorphic terrain area of Pandalgudi region of Viruthunagar District, Tamilnadu, India. The stratigraphic succession of the study area is given. In order to cover the entire study area, 20 groundwater samples, from bore wells as well as from open wells for the both post-monsoon and pre-monsoon periods were collected. These samples were analyzed for various physico-chemical parameters such as pH, EC, TDS, Cations Na+, Ca2+, Mg2+, K+, Anions CO3-, HCO3-, NO3-, SO42- and Cl-. The results of the analysis were interpreted for different water qualities by Correlation, Gibbs mechanism and Piper method. The correlation study parameters of all water samples show positive correlations. The gibbs mechanism illustrates the evaporation dominance and rock dominance character which are controlling water chemistry. According to piper analysis,the geochemistry of ground water samples of the study area shows CaCl and NaCl rich facies. The Arc GIS 10.1 software was used for the generation of various thematic maps. An interpolation technique such as Inverse Distance Weighting (IDW) method was used to obtain the spatial distribution of groundwater quality parameters. Further, the water qualities are compared with BIS and WHO standards of drinking water and other standards such as livestock use and irrigation purposes.
