Seawater-freshwater mixing and resulting calcite dissolution: an example from a coastal alluvial aquifer in eastern South Korea
DC Field | Value | Language |
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dc.contributor.author | Chae, Gi-Tak | - |
dc.contributor.author | Yun, Seong-Taek | - |
dc.contributor.author | Yun, Sung-Moon | - |
dc.contributor.author | Kim, Kyoung-Ho | - |
dc.contributor.author | So, Chil-Sup | - |
dc.date.accessioned | 2021-09-06T13:33:26Z | - |
dc.date.available | 2021-09-06T13:33:26Z | - |
dc.date.created | 2021-06-14 | - |
dc.date.issued | 2012-11-01 | - |
dc.identifier.issn | 0262-6667 | - |
dc.identifier.uri | https://scholar.korea.ac.kr/handle/2021.sw.korea/106972 | - |
dc.description.abstract | In order to evaluate groundwater quality and geochemical reactions arising from mixing between seawater and dilute groundwater, we performed a hydrochemical investigation of alluvial groundwater in a limestone-rich coastal area of eastern South Korea. Two sites were chosen for comparison: an upstream site and a downstream site. Data of major ion chemistry and ratios of oxygen-hydrogen isotopes (delta O-18, delta D) revealed different major sources of groundwater salinity: recharge by sea-spray-affected precipitation in the upstream site, and seawater intrusion and diffusion zone fluctuation in the downstream site. The results of geochemical modelling showed that Ca2+ enrichment in the downstream area is caused by calcite dissolution enhanced by the ionic strength increase, as a result of seawater-groundwater mixing under open system conditions with a constant P-CO2 value (about 10(-1.5) atm). The results show that, for coastal alluvial groundwater residing on limestone, significant hydrochemical change (especially increased hardness) due to calcite dissolution enhanced by seawater mixing should be taken into account for better groundwater management. This process can be effectively evaluated using geochemical modelling. | - |
dc.language | English | - |
dc.language.iso | en | - |
dc.publisher | TAYLOR & FRANCIS LTD | - |
dc.subject | JEJU ISLAND | - |
dc.subject | CARBONATE DISSOLUTION | - |
dc.subject | GROUNDWATER CHEMISTRY | - |
dc.subject | GEOCHEMICAL PROCESSES | - |
dc.subject | VOLCANIC ISLAND | - |
dc.subject | SALINE WATER | - |
dc.subject | AREA | - |
dc.subject | INTRUSION | - |
dc.subject | ZONE | - |
dc.subject | SALINIZATION | - |
dc.title | Seawater-freshwater mixing and resulting calcite dissolution: an example from a coastal alluvial aquifer in eastern South Korea | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Yun, Seong-Taek | - |
dc.identifier.doi | 10.1080/02626667.2012.727421 | - |
dc.identifier.scopusid | 2-s2.0-84871232456 | - |
dc.identifier.wosid | 000315212700013 | - |
dc.identifier.bibliographicCitation | HYDROLOGICAL SCIENCES JOURNAL-JOURNAL DES SCIENCES HYDROLOGIQUES, v.57, no.8, pp.1672 - 1683 | - |
dc.relation.isPartOf | HYDROLOGICAL SCIENCES JOURNAL-JOURNAL DES SCIENCES HYDROLOGIQUES | - |
dc.citation.title | HYDROLOGICAL SCIENCES JOURNAL-JOURNAL DES SCIENCES HYDROLOGIQUES | - |
dc.citation.volume | 57 | - |
dc.citation.number | 8 | - |
dc.citation.startPage | 1672 | - |
dc.citation.endPage | 1683 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Water Resources | - |
dc.relation.journalWebOfScienceCategory | Water Resources | - |
dc.subject.keywordPlus | JEJU ISLAND | - |
dc.subject.keywordPlus | CARBONATE DISSOLUTION | - |
dc.subject.keywordPlus | GROUNDWATER CHEMISTRY | - |
dc.subject.keywordPlus | GEOCHEMICAL PROCESSES | - |
dc.subject.keywordPlus | VOLCANIC ISLAND | - |
dc.subject.keywordPlus | SALINE WATER | - |
dc.subject.keywordPlus | AREA | - |
dc.subject.keywordPlus | INTRUSION | - |
dc.subject.keywordPlus | ZONE | - |
dc.subject.keywordPlus | SALINIZATION | - |
dc.subject.keywordAuthor | coastal shallow groundwater | - |
dc.subject.keywordAuthor | seawater mixing | - |
dc.subject.keywordAuthor | limestone terrain | - |
dc.subject.keywordAuthor | calcite dissolution | - |
dc.subject.keywordAuthor | hydrogeochemical modelling | - |
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