Journal
ENVIRONMENTAL GEOLOGY
Volume 41, Issue 7, Pages 861-866Publisher
SPRINGER-VERLAG
DOI: 10.1007/s002540100340
Keywords
longitudinal unit conductance (S); total dissolved solids; thickness of the weathered zone (W-z); transverse unit resistance
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Geophysical, geochemical, and hydrogeological parameters, for example longitudinal unit conductance (S), transverse unit resistance (T), total dissolved solids (TDS) and thickness of the weathered zone (W-z), have been compared for 25 sites of Navalgund taluk in Dharwar District of Karnataka State, India. Interrelation among these parameters has been analyzed quantitatively by the standard statistical technique leading to a suitable mathematical model. The contrasting geophysical, geochemical, and hydrogeological characteristics of the fresh water pockets in the regionally brackish aquifers are compared and illustrated. The study explains the significant bearing of these parameters on exploration, development, and exploitation of fresh groundwater sources in the areas affected by the occurrence of a brackish water aquifer. The importance of such a comparison in raising the confidence to identify a fresh groundwater aquifer in the brackish terrain by quantitative interpretation of resistivity data has been demonstrated.
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