| Records |
| Author |
Kim, Y.; Lee, K.-S.; Koh, D.-C.; Lee, D.-H.; Lee, S.-G.; Park, W.-B.; Koh, G.-W.; Woo, N.-C. |
| Title |
Hydrogeochemical and isotopic evidence of groundwater salinization in a coastal aquifer: a case study in Jeju volcanic island, Korea |
Type |
Journal Article |
| Year |
2003 |
Publication |
Journal of Hydrology |
Abbreviated Journal |
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| Volume |
270 |
Issue |
3 |
Pages |
282-294 |
| Keywords |
Jeju volcanic island, Coastal aquifer, Groundwater salinization, Hydrogeochemistry, Environmental isotopes, Mixing process |
| Abstract |
In order to identify the origin of saline groundwater in the eastern part of Jeju volcanic island, Korea, a hydrogeochemical and isotopic study has been carried out for 18 observation wells located in east and southeast coastal regions. The total dissolved solid contents of groundwaters are highly variable (77–21,782mg/l). Oxygen, hydrogen, sulfur, and strontium isotopic data clearly show that the saline water results from mixing of groundwater with seawater. Strontium isotopic compositions and Br/Cl and I/Cl ratios strongly suggest that the source of salinity is modern seawater intrusion. Hydrogeochemical characteristics based on bivariate diagrams of major and minor ions show that changes in the chemical composition of groundwater are mainly controlled by the salinization process followed by cation-exchange reactions. The highly permeable aquifers at the east coastal region are characterized by low hydraulic gradient and discharge rate and high hydraulic conductivity as compared with other regions. These properties enhance the salinization of groundwater observed in the study area. Based on the Cl, Br, and δ18O data, seawater was determined to have intruded inland some 2.5km from the coastline. Considering the poor correlation of sampling depth and Cl concentrations observed, the position of seawater-freshwater interface is not uniformly distributed in the study area, due to heterogeneities of the basaltic aquifers. |
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0022-1694 |
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| Call Number |
THL @ christoph.kuells @ Kim2003282 |
Serial  |
172 |
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| Author |
Chilès*, J.P.; Delfiner, P. |
| Title |
Geostatistics: Modeling spatial uncertainty |
Type |
Book Whole |
| Year |
2009 |
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Wiley |
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Wiley Series inWiley Series in Probability and Statistics |
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9780470317839 |
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no |
| Call Number |
CUT @ phaedon.kyriakidis @ chiles2009 |
Serial |
171 |
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| Author |
Zhou*, H.; Gómez-Hernández, J.J.; Li, L. |
| Title |
Inverse methods in hydrogeology: Evolution and recent trends |
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Journal Article |
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2014 |
Publication |
Adv. Water Resour. |
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63 |
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22-37 |
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Elsevier BV |
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CUT @ phaedon.kyriakidis @ Zhou2014 |
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170 |
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Yoon*, S.; Williams, J.R.; Juanes, R.; Kang, P.K. |
| Title |
Maximizing the value of pressure data in saline aquifer characterization |
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Journal Article |
| Year |
2017 |
Publication |
Adv. Water Resour. |
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109 |
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14-28 |
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Elsevier BV |
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CUT @ phaedon.kyriakidis @ Yoon2017 |
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169 |
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| Author |
Goovaerts*, P. |
| Title |
Geostatistics for natural resources evaluation |
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1997 |
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Oxford University Press |
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Applied geostatistics series |
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ISBN |
9780195115383 |
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no |
| Call Number |
CUT @ phaedon.kyriakidis @ Goovaerts1997 |
Serial |
168 |
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