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Gopinath, S., Srinivasamoorthy, K., Saravanan, K., & Prakash, R. (2019). Tracing groundwater salinization using geochemical and isotopic signature in Southeastern coastal Tamilnadu, India. Chemosphere, 236, 124305.
Abstract: Attempt has been made to discriminate groundwater salinity causes along the east coast of India. A total of 122 groundwater samples (61/season) were collected for two diverse seasons (Pre Monsoon and Post Monsoon) and analyzed for physical and chemical components along with stable isotopes. The Piper diagram proposes samples along the coast predisposed by saltwater incursion. Ionic ratio plots recommend groundwater discriminatory by changing geochemical signatures. The statistical correlation suggests impact of saltwater incursion, anthropogenic and rock water interaction as sources for dissolved constituents in groundwater. The thermodynamic stability plot suggests higher silicate dissolution, weathering and ion exchange prompting water chemistry nevertheless of seasons. The δ 18O and δ 2H increases towards the sea suggesting enrichment attributed to the sea water influence and rainfall influences along the southwestern parts of the study area.
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Pulido-Leboeuf, P., Pulido-Bosch, A., Calvache, M. L., Vallejos, Á., & Andreu, J. M. (2003). Strontium, SO42-/Cl- and Mg2+/Ca2+ ratios as tracers for the evolution of seawater into coastal aquifers: the example of Castell de Ferro aquifer (SE Spain). Comptes Rendus Geoscience, 335(14), 1039–1048.
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Guerzoni, S., Molinaroli, E., & Chester, R. (1997). Saharan dust inputs to the W. Mediterranean Sea: depositional patterns, geochemistry and sedimentological implications. Deep-Sea Res, 44(3-4), 631–654.
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Triki*, I., N.Trabelsi, Zairi, M., & Dhia, H. B. (2014). Multivariate statistical and geostatistical techniques for assessing groundwater salinization in Sfax, a coastal region of eastern Tunisia. Desalination Water Treat., 52, 1980–1989.
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