Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | 김규한 | - |
dc.date.accessioned | 2019-11-05T16:30:09Z | - |
dc.date.available | 2019-11-05T16:30:09Z | - |
dc.date.issued | 2019 | - |
dc.identifier.issn | 2073-4441 | - |
dc.identifier.other | OAK-25597 | - |
dc.identifier.uri | https://dspace.ewha.ac.kr/handle/2015.oak/251749 | - |
dc.description.abstract | The Magumsan thermal waters of the southeastern Korean Peninsula are pumped out of six deep wells (average depth, 300 m) at temperatures of 30.8-49 degrees C. The thermal waters are chemically classified into two groups: NaHCO3 type (<31 degrees C) and NaCl (HCO3, SO4) type (>40 degrees C), both of which have chemical compositions that are distinct from local groundwater (Ca-HCO3 type). delta O-18 and delta D values suggest that the thermal waters originate from meteoric water and they are isotopically fractionated by silicate hydration or H2S exchange. delta S-34 values (+7.0 to +15%) of dissolved sulfate in the thermal waters reflect enrichment in S-34 through kinetically controlled oxidation of magmatic pyrite in the thermal aquifer and mixing with paleo-seawater. On the He-3/He-4 vs. He-4/Ne-20 diagram, the thermal waters plot along a single air mixing line of dominant crustal He, which indicates that the heat source for the thermal waters is non-volcanogenic thermal energy that is generated from the decay of radioactive elements in crustal rocks. Chalcedony geothermometry and thermodynamic equilibrium calculations using the PHREEQC program indicate a reservoir temperature for the immature thermal waters of 54-86 degrees C and 55-83 degrees C, respectively. | - |
dc.language | English | - |
dc.publisher | MDPI | - |
dc.subject | thermal waters | - |
dc.subject | chemical composition | - |
dc.subject | reservoir temperature | - |
dc.subject | delta S-34 | - |
dc.subject | meteoric water | - |
dc.subject | He-3/He-4 ratio | - |
dc.subject | geothermometers | - |
dc.subject | thermodynamic equilibrium | - |
dc.title | Geochemical and Isotopic Compositions and Geothermometry of Thermal Waters in the Magumsan Area, South Korea | - |
dc.type | Article | - |
dc.relation.issue | 9 | - |
dc.relation.volume | 11 | - |
dc.relation.index | SCIE | - |
dc.relation.index | SCOPUS | - |
dc.relation.journaltitle | WATER | - |
dc.identifier.doi | 10.3390/w11091774 | - |
dc.identifier.wosid | WOS:000488834400037 | - |
dc.author.google | Jeong, Chan-Ho | - |
dc.author.google | Lee, Byeong-Dae | - |
dc.author.google | Yang, Jae-Ha | - |
dc.author.google | Nagao, Keisuke | - |
dc.author.google | Kim, Kyu-Han | - |
dc.author.google | Ahn, Sang-Won | - |
dc.author.google | Lee, Yong-Cheon | - |
dc.author.google | Lee, Yu-Jin | - |
dc.author.google | Jang, Hyeon-Woo | - |
dc.contributor.scopusid | 김규한(53163933100;57204538981) | - |
dc.date.modifydate | 20220405105240 | - |