| 江西省安福地区地热水化学特征研究 |
| |
| 关键词:geothermal waters hydrochemistry stable isotope strontium |
| 基金项目:中国地质调查局地质调查项目(编号: DD20221677-2; DD20201165);中央财政基本科研业务费项目(编号: JKY202004) |
|
| 摘要点击次数: 1579 |
| 全文下载次数: 809 |
| 摘要: |
| Hydrochemical Characteristics of Geothermal Water in Anfu Area, Jangxi Province |
| To study the hydrogeochemical characteristics and control factors in the Anfu area of Jiangxi Province, we collected 15 groups of geothermal water samples and analyzed their isotopic and hydrochemical characteristics. The results revealed that the geothermal water in the study area was dominated by Na-HCO3-type water. The groundwater primarily comprised HCO3-Na·Ca-type water, and the surface water changed from HCO3-Na·Ca-type to HCO3-Ca-type from the southwest to the northeast in the region. Rock weathering primarily controlled the evolution process of hydrochemical components in the area, and the formation sealing was poor. Na+, HCO– 3, and Sr2+ in water originated from the weathering and dissolution of silicate. According to the analysis of stable isotope characteristics, the geothermal water in Anfu was of meteoric origin and had a slight 18O shift. The geothermal reservoir temperature in the study area ranged between 49.8–101.4 °C, and the geothermal water circulation depth was between 1502.6–1513.6 m. The geothermal water rising in the study area was mixed with shallow cold water, and the mixing ratio was calculated to be 76.1%~87.5%. These results provide a basis for understanding the evolution of the water cycle in the Ji’an area, which is conducive to the rational exploitation and protection of geothermal resources. |
| YU Tingxi,LIU Kai,SUN Junliang,WANG Luyao,WANG Shuxun.2024.Hydrochemical Characteristics of Geothermal Water in Anfu Area, Jangxi Province[J].Acta Geoscientica Sinica,45(1):99-111. |
| 查看全文 查看/发表评论 下载PDF阅读器 |
|
|
|
|
|