| 典型岩溶温泉群水文地球化学特征 |
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| 作者姓名： | 雷琨 何守阳 安艳玲 |
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| 作者单位： | 1. 贵州大学喀斯特环境与地质灾害防治教育部重点实验室, 贵阳 550025;
2. 贵州大学资源与环境工程学院, 贵阳 550025 |
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| 基金项目： | 贵州省科技厅重点基金(黔科合JZ字[2014]2006号、黔科合计Z字[2012]4012号、黔科合J字[2011]2037号)和贵州大学人才引进项目(贵大人基合字(2010)046号)资助 |
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| 摘 要： | 石阡县岩溶温泉群因富含矿物质和微量元素蕴涵着极高的商业价值.采集和收集不同时期石阡岩溶温泉群的水化学分析数据进行综合分析.研究表明:石阡温泉群主要的阳离子为Ca2+和Mg2+,主要的阴离子为HCO3-和SO42-,水化学类型为HCO3-Ca·Mg型、HCO3·SO4-Ca·Mg型和SO4·HCO3-Ca·Mg型,水质偏碱性,温泉群的补给源为大气降水.水文地球化学特征受控于大气降水入渗深循环过程中的水-岩相互作用.HCO3-Ca·Mg型温泉由白云岩和方解石等碳酸盐矿物溶解所致;HCO3·SO4-Ca·Mg型和SO4·HCO3-Ca·Mg型则受控于岩溶含水层中的膏盐层溶解.
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| 关 键 词： | 温泉群 岩溶 水文地球化学 石阡县 |
| 收稿时间： | 2015-07-10 |
| 修稿时间： | 2015-11-23 |
Hydrogochemical characteristics of thermal spring group in typical karst region |
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| Authors: | LEI Kun HE Shouyang AN Yanling |
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| Institution: | 1. Key Laboratory of Karst Environmentand Geohazard Prevention of Ministry of Education, Guizhou University, Guiyang 550025, China;
2. College of Resources and Environmental Engineering,Guizhou University,Guiyang 550025, China |
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| Abstract: | Karst thermal spring group in Shiqian county has a high commercial value due to the rich minerals and trace elements. The water chemistry data in different periods are collected and analyzed to study hydrogochemical characteristics of the thermal spring group in Shiqian county. The results indicate that Ca2+and Mg2+ are the major cations and the major anions are SO2-4 and HCO-3. The thermal springs are alkaline water and recharged by precipitation. The hydrochemical types are SO4 ·HCO3-Ca ·Mg, HCO3 ·SO4-Ca ·Mg, and HCO3-Ca ·Mg. Water chemistry types of thermal spring group are controlled by the water-rock interaction in the process of precipitation infiltration into deep water cycle. The thermal spring of the HCO3-Ca · Mg type is predominated by carbonate minerals dissolution, and the HCO3 · SO4 -Ca · Mg or the SO4 · HCO3-Ca · Mg types are controlled by the dissolution of sulfate evaporates in karst aquifer. |
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| Keywords: | thermal spring group karst hydrogeochemistry Shiqian county |
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