Stable Isotopes and Major Ions in Deciphering the Hydrochemical Environment in the Tertiary Aquifer System of Kuttanad Area, Kerala
| Autor: | V. Kunhambu, D. S. Sureshbabu, N. Vinayachandran |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
geography
geography.geographical_feature_category Hydrogeology Soil salinity Coastal plain Stable isotope ratio Geochemistry Geology Aquifer 010501 environmental sciences 010502 geochemistry & geophysics 01 natural sciences Hydrology (agriculture) Alluvium Groundwater 0105 earth and related environmental sciences |
| Zdroj: | Journal of the Geological Society of India. 97:79-84 |
| ISSN: | 0974-6889 0016-7622 |
| Popis: | Kuttanad area is part of the western coastal plains in Kerala characterized by a thick pile of Tertiary sediments underlying the Recent alluvium. The evolution of aquifer systems in these sediments are closely related to the geological history of the area and the groundwater in the Tertiary aquifer system was evolved during various marine transgressions and regressions. Chemical processes such as leaching of salts, cation exchange and chemical reactions under strong reducing environment modified the hydrochemistry of these aquifers. The salinization and freshening processes in the tertiary aquifer system elucidated from hydrogeological, hydro-chemical and stable isotope (2H and 18O) studies are documented in this paper. The hydrochemical and isotope studies corroborate with the observations in the earlier study on the flow regime in the coastal aquifers under SIDA assisted coastal hydrology project (CGWB, 1992). |
| Databáze: | OpenAIRE |
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