Study of evaluation of groundwater in Gadilam basin using hydrogeochemical and isotope data
- 17 July 2009
- journal article
- research article
- Published by Springer Science and Business Media LLC in Environmental Monitoring and Assessment
- Vol. 168 (1-4), 63-90
- https://doi.org/10.1007/s10661-009-1092-5
Abstract
Gadilam river basin has gained its importance due to the presence of Neyveli Lignite open cast mines and other industrial complexes. It is also due to extensive depressurization of Cuddalore aquifer, and bore wells for New Veeranam Scheme are constructed downstream of the basin. Geochemical indicators of groundwater were used to identify the chemical processes that control hydrogeochemistry. Chemical parameters of groundwater such as pH, electrical conductivity, total dissolved solids, sodium (Na + ), potassium (K + ), calcium (Ca + ), magnesium (Mg + ), bicarbonate $({\rm HCO}_{3}^{-})$ , sulfate $({\rm SO}_{4}^{-})$ , phosphate $({\rm PO}_{4}^{-})$ , and silica (H4SiO4) were determined. Interpretation of hydrogeochemical data suggests that leaching of ions followed by weathering and anthropogenic impact controls the chemistry of the groundwater. Isotopic study reveals that recharge from meteoric source in sedimentary terrain and rock–water interaction with significant evaporation prevails in hard rock region.
Keywords
This publication has 9 references indexed in Scilit:
- Investigating groundwater–river interactions using environmental tracersAustralian Journal of Earth Sciences, 2009
- Environmental geochemistry of the Pichavaram mangrove ecosystem (tropical), southeast coast of IndiaEnvironmental Geology, 1999
- Salinity and evaporation in the River Murray Basin, AustraliaJournal of Hydrology, 1991
- A stable isotope study of recharge processes in the English ChalkJournal of Hydrology, 1988
- Growth Mechanisms of Speleothems in Castleguard Cave, Columbia Icefields, Alberta, CanadaArctic and Alpine Research, 1983
- Effect of mineral precipitation on isotopic composition and 14C dating of groundwaterNature, 1976
- The incongruent solution of dolomiteGeochimica et Cosmochimica Acta, 1973
- Chemistry of ground water in a district in southern IndiaJournal of Hydrology, 1973
- A graphic procedure in the geochemical interpretation of water‐analysesEOS, Transactions American Geophysical Union, 1944