| Records |
| Author |
Daniele, L.; Vallejos, Á.; Corbella, M.; Molina, L.; Pulido-Bosch, A. |
| Title |
Hydrogeochemistry and geochemical simulations to assess water–rock interactions in complex carbonate aquifers: The case of Aguadulce (SE Spain) |
Type |
Journal Article |
| Year |
2013 |
Publication |
Applied Geochemistry |
Abbreviated Journal |
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| Volume |
29 |
Issue |
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Pages |
43-54 |
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| Abstract |
The hydrogeological unit of Aguadulce (Campo de Dalías aquifers, SE Spain) has a complex geometry. This fact, together with a continuous rise in water demand due to intensive agriculture and tourism create problems for groundwater quantity and quality. In this paper classic geochemical tools managed by means of GIS software and geochemical simulations are combined to delineate, identify and locate the possible physicochemical processes acting in the Aguadulce groundwater. Two main aquifers can be distinguished: the carbonate or lower aquifer of Triassic age, and the calcodetritic or upper aquifer of Plio-Quaternary age. Groundwaters from the latter are more saline and, assuming all chlorinity originates from seawater intrusion, the seawater contribution to their composition would be up to 7%. Nevertheless the carbonate aquifer appears not to be homogeneous: it is compartmentalised into 4 zones where different processes explain the different groundwaters compositions. Zone 4 samples (E margin of the carbonate aquifer) resemble those of the Plio-Quaternary aquifer, where calcite precipitation, dolomite and gypsum dissolution and some cation exchange (water–rock interaction) together with seawater–freshwater mixing occur. In contrast, water–rock interaction predominates in zones 1 and 3 of the carbonate aquifer. Moreover, zone 2 samples, located between zones 1 and 3, are explained by water–rock interaction in addition to mixing with Plio-Quaternary aquifer waters. The combination of geochemical simulations with GIS and hydrogeochemical analyses has proven to be effective in identifying and locating the different physicochemical processes in the aquifer areas, thus improving understanding of hydrogeochemistry in complex aquifers. |
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0883-2927 |
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THL @ christoph.kuells @ Daniele2013 |
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19 |
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Rina, K.; Datta, P.S.; Singh, C.K.; Mukherjee, S. |
| Title |
Isotopes and ion chemistry to identify salinization of coastal aquifers of Sabarmati River Basin |
Type |
Journal Article |
| Year |
2013 |
Publication |
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Abbreviated Journal |
Current Science |
| Volume |
104 |
Issue |
3 |
Pages |
335-344 |
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| Abstract |
The lower reaches of the Sabarmati River Basin in Gujarat have intense agricultural and industrial activities and this part is affected by problems of groundwater salinity. Here we attempt to assess the processes governing the causes of groundwater salinity in the coastal alluvial aquifer, employing δ18O and δD isotopes in integration with ionic ratio. The different hydrochemical facies such Na–Mg–HCO3–Cl, Na–Cl–SO4, Na–Mg–Cl–HCO3–SO4 and Na–Cl of groundwater show the occurrence of complex geochemical phenomenon in the study area. Ionic ratio (such as Mg2+/Ca2+, Na+/Cl−, SO24/Cl-, K+/Cl−) and isotopic composition (δ18O and δD) of groundwater indicate that while in coastal areas seawater intrusion is taking place, in inland areas various anthropogenic activities and overexploitation have induced salinity in groundwater. Over-pumping of groundwater has also induced lateral intermixing of highly saline water in the vicinity of coastal areas with relatively fresh/low saline groundwater along specific flow pathways. |
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Current Science Association |
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0011-3891 |
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THL @ christoph.kuells @ |
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190 |
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Karatas, B.S.; Camoglu, G.; Olgen, M.K. |
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Spatio-temporal trend analysis of the depth and salinity of the groundwater, using geostatistics integrated with GIS, of the Menemen Irrigation System, Western Turkey |
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Journal Article |
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2013 |
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Ekoloji |
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22 |
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86 |
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36-47 |
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CUT @ phaedon.kyriakidis @ Karatas2013 |
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145 |
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Agoubi*, B.; Kharroubi, A.; Abida, H. |
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Saltwater intrusion modelling in Jorf coastal aquifer, Southeastern Tunisia: geochemical, geoelectrical and geostatistical application |
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Journal Article |
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2013 |
Publication |
Hydrol. Process. |
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27 |
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1191-1199 |
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CUT @ phaedon.kyriakidis @ Agoubi2013 |
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139 |
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