| Records |
| Author |
Carreira, P. M.; Marques, J. M. |
| Title |
Groundwater Salinity and Environmental Change Over the Last 20,000 Years: Isotopic Evidences in the Lower Sado Aquifer Recharge, Portugal |
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Book Whole |
| Year |
2018 |
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Impacts of the Water Resources Variability on Cereal Yields in the Region of Souss-Massa Southern MoroccoErstes |
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Springer |
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no |
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THL @ christoph.kuells @ |
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183 |
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| Author |
Qi, H.; Ma, C.; He, Z.; Hu, X.; Gao, L. |
| Title |
Lithium and its isotopes as tracers of groundwater salinization: A study in the southern coastal plain of Laizhou Bay, China |
Type |
Journal Article |
| Year |
2019 |
Publication |
The Science of the Total Environment |
Abbreviated Journal |
Sci Total Environ |
| Volume |
650 |
Issue |
Pt 1 |
Pages |
878-890 |
| Keywords |
Brine and seawater intrusion; Groundwater salinization; Hydrochemistry; Lithium isotope; Southern coastal plain of Laizhou Bay |
| Abstract |
In the southern coastal plain of Laizhou Bay, due to intensive exploitation of groundwater since the early 1970s, the shallow aquifer has been severely influenced by saltwater intrusion, which causes the extraction to shift from shallow to deeper aquifer changing the hydrogeological condition greatly. This study was conducted to investigate the groundwater salinization using hydrochemistry and H, O and Li isotope data. Dissolved Li shows a linear correlation with Cl and Br in seawater, brine and saline groundwater indicating the marine Li source, whereas the enrichment of Li in surface water, brackish and fresh groundwater is impacted by dissolution of silicate minerals. The analyses of hydrochemistry and isotopes (H, O and Li) indicate that brine originated from seawater evaporation, followed by mixing processes and some water-rock interactions; shallow saline groundwater originated from brine diluted with seawater and fresh groundwater; deep saline groundwater originated from seawater intrusion. The negative correlation of δ(7)Li and Li/Na in surface water, brackish and fresh groundwater is contrary to the general conclusion, indicating the slow weathering of silicate minerals and hydraulic interaction between surface water and shallow groundwater in this area. The analyses of hydrochemistry and isotopes (Li, H and O) can well identify the salinity sources and isotope fractionation in groundwater flow and mixing, especially groundwater with high TDS. As both mixing with saltwater and isotope fractionation can explain the combination of high δ(7)Li and low TDS in brackish groundwater, isotope fractionation may limit their use in recognizing salinity sources of groundwater with low TDS. |
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School of Environmental Studies, China University of Geosciences, Wuhan 430074, China |
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English |
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0048-9697 |
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| Notes |
PMID:30308862 |
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no |
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THL @ christoph.kuells @ |
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184 |
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| Author |
Löhnert, E.P.; Sonntag, C. |
| Title |
Grundwasserversalzungen im Raum Hamburg im Licht neuer Isotopendaten |
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Journal Article |
| Year |
1981 |
Publication |
Zeitschrift der Deutschen Geologischen Gesellschaft |
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132 |
Issue |
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Pages |
559-574 |
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Schweizerbart Science Publishers |
Place of Publication |
Stuttgart, Germany |
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THL @ christoph.kuells @ Loehhnert1981 |
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185 |
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| Author |
Nisi, B.; Raco B.; Dotsika, E. |
| Title |
Groundwater Contamination Studies by Environmental Isotopes: A review |
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Book Chapter |
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2014 |
Publication |
Environment, Energy and Climate Change I: Environmental Chemistry of Pollutants and Wastes |
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Springer-Verlag Berlin Heidelberg |
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Editor |
E. Jimenez |
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en |
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no |
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THL @ christoph.kuells @ |
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186 |
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| Author |
Hammami Abidi, J.; Farhat, B.; Ben Mammou, A.; Oueslati, N. |
| Title |
Characterization of Recharge Mechanisms and Sources of Groundwater Salinization in Ras Jbel Coastal Aquifer (Northeast Tunisia) Using Hydrogeochemical Tools, Environmental Isotopes, GIS, and Statistics |
Type |
Journal Article |
| Year |
2017 |
Publication |
Journal of Chemistry |
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2017 |
Issue |
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Pages |
8610894 |
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| Abstract |
Groundwater is among the most available water resources in Tunisia; it is a vital natural resource in arid and semiarid regions. Located in north-eastern Tunisia, the Metline-Ras Jbel-Raf Raf aquifer is a mio-plio-quaternary shallow coastal aquifer, where groundwater is the most important source of water supply. The major ion hydrochemistry and environmental isotope composition δ18O, δ2H were investigated to identify the recharge sources and processes that affect the groundwater salinization. The combination of hydrogeochemical, isotopic, statistical, and GIS approaches demonstrates that the salinity and the groundwater composition are largely controlled by the water-rock interaction particularly the dissolution of evaporate minerals and the ion exchange process, the return flow of the irrigation water, agricultural fertilizers, and finally saltwater intrusion which started before 1980 and which is partially mitigated by the artificial recharge since 1993. As for the stable isotope signatures, results showed that groundwater samples lay on and around the local meteoric water line LMWL; hence, this arrangement signifies that the recharge of the Ras Jbel aquifer is ensured by recent recharge from Mediterranean air masses. |
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Hindawi KW |
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2090-9063 |
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no |
| Call Number |
THL @ christoph.kuells @ |
Serial |
189 |
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