| 云南昌宁橄榄河热泉水化学特征及复合成因机制研究 |
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| 引用本文： | 潘明,郝彦珍,吕勇,李波.云南昌宁橄榄河热泉水化学特征及复合成因机制研究[J].中国岩溶,2021,40(2):281-289. |
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| 作者姓名： | 潘明 郝彦珍 吕勇 李波 |
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| 作者单位： | 1.昆明理工大学国土资源工程学院/中国地质科学院岩溶地质研究所/自然资源部广西岩溶动力重点实验室 |
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| 基金项目： | 中国地质科学院岩溶地质研究所基本科研业务费项目（编号 2020014）；中国地质调查局地质调查项目（12120114042601）、（DD20190022）和（DD20190342） |
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| 摘 要： | 通过对橄榄河温泉盖层和热储层地质体的岩性和构造特征分析，依据水化学数据，利用Piper三角图解法、同位素水文学方法和地球化学温标等方法，对橄榄河温泉地下热水的水化学类型、补给机制、热储特征和冷热水混合机制等关键问题进行了分析。结果表明地下热水源于大气降水补给，且地下热水在上升至地表的过程中与浅层冷水发生着混合，冷水混入比例约为62%~64%；温泉水化学类型为HCO3 -Na型，表明热水化学组分与围岩化学成分之间具有耦合关系；地下热水循环深度约2 070 m，橄榄河温泉的成因受控于柯街深大断裂，其控制着地下热水的储存、运移和混合程度。研究成果填补了橄榄河热泉的相关研究空白，为该温泉的开发利用提供了科学支撑。
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| 关 键 词： | 云南 温泉 水化学 同位素 柯街断裂 |
Hydrochemical characteristics and composite genesis of a geothermal spring in Ganlanhe, Changning, Yunnan Province |
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| PAN Ming,HAO Yanzhen,Lyu Yong,LI Bo.Hydrochemical characteristics and composite genesis of a geothermal spring in Ganlanhe, Changning, Yunnan Province[J].Carsologica Sinica,2021,40(2):281-289. |
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| Authors: | PAN Ming HAO Yanzhen Lyu Yong LI Bo |
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| Institution: | 1.Faculty of Land Resources Engineering， Kunming university of Science and Technology/Institute of Karst Geology， Chinese Academy of Geological Sciences/Key Laboratory of Karst Dynamics， MNR & GZAR2.Institute of Karst Geology， Chinese Academy of Geological Sciences/Key Laboratory of Karst Dynamics， MNR & GZAR3.Faculty of Land Resources Engineering， Kunming university of Science and Technology |
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| Abstract: | This paper presents an analysis of lithology and structural characteristics of cap rock and the thermal reservoir of the Ganlanhe hot spring. It covers hydrochemical types， recharge mechanism， thermal reservoir characteristics and mixing mechanism of hot and cold water. The analysis is based on hydrochemical data， using the piper triangle diagram， isotope hydrology method and the geochemical temperature scale. The results show that the underground hot water is supplied by atmospheric precipitation， mixed with the cold water from the shallow subsurface during the process of hot-water rising to the surface， and the proportion of cold water mixing is about 62%-64%. The chemical type of hot spring water is HCO3-Na， which indicates that there is a coupling relationship between the chemical composition of hot water and the surrounding rocks. The circulation depth of underground hot water is about 2，070 m. The formation of the Ganlanhe hot spring is closely related to the Kejie fault， which controls the storage， migration and mixing degree of underground hot water. The research results fill the gap of the research on the Ganlanhe hot spring and provide scientific support for its development and utilization. |
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