| 不同地质背景地热系统水-岩作用下温泉水的地球化学特征——以重庆市温塘峡背斜温泉、滇东小江断裂带温泉为例 |
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| 引用本文： | 杨 雷,肖 琼,沈立成,伍坤宇.不同地质背景地热系统水-岩作用下温泉水的地球化学特征——以重庆市温塘峡背斜温泉、滇东小江断裂带温泉为例[J].中国岩溶,2011,30(2):209-215. |
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| 作者姓名： | 杨 雷 肖 琼 沈立成 伍坤宇 |
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| 作者单位： | 西南大学三峡库区生态环境教育部重点实验室,地理科学学院,重庆400715 |
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| 基金项目： | 国家自然科学基金(编号41072192)、重庆市科委院士专项(CSTC2010BC7004)、中央高校基本科研业务费专项资金资助项目(编号XD-JK2010B006)、西南大学研究生科技创新基金(编号ky2010002) |
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| 摘 要： | 本文以重庆市温塘峡背斜和滇东小江断裂带出露温泉为例,探讨了其水文地球化学特征的差异。研究发现,由于地质背景条件基本相同,温塘峡背斜出露的温泉水文地球化学特征比较接近,水化学类型为SO4-Ca（Mg）型,而小江断裂带温泉水文地球化学特征差异较大,泉水水化学类型主要有HCO3-Na型（YN1）、HCO3-Ca型（YN2）、SO4-Ca（Mg）型（YN3和YN5）和SO4-HCO3-Ca-Na型（YN4）,这与各泉点所处地质背景条件不同有很大关系。此外,通过对Na-K-Mg和Na-K-Mg-Ca图解模型的解读得出,所有样品均未达到水-岩平衡,仅有YN1泉点样品接近完全平衡线,表明YN1接近水-岩作用平衡状态,并由上述图解模型估算得到YN1点热储温度大概为100~120℃,与运用SiO2温标计算的热储温度（133~139℃）相差不大。此外,水化学特征和Na-K-Mg-Ca图解分析也表明,YN2与温塘峡背斜温泉水-岩作用过程比较相似。
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| 关 键 词： | 温泉 水文地球化学 温塘峡背斜 小江断裂带 |
| 收稿时间： | 2010/12/14 0:00:00 |
Hydrogeochemical features of hot spring under water-rock processes of different geologic conditions-A case in the Wentangxia hot spring of Chongqing and the hot spring at Xiaojiang fault zone of the East Yunnan |
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| YANG Lei,XIAO Qiong,SHEN Li-cheng and WU Kun-yu.Hydrogeochemical features of hot spring under water-rock processes of different geologic conditions-A case in the Wentangxia hot spring of Chongqing and the hot spring at Xiaojiang fault zone of the East Yunnan[J].Carsologica Sinica,2011,30(2):209-215. |
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| Authors: | YANG Lei XIAO Qiong SHEN Li-cheng and WU Kun-yu |
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| Institution: | Key Laboratory of Eco-environments in Three Gorges Reservoir, Ministry of Education, School of Geographical Sciences, Southwest University;Key Laboratory of Eco-environments in Three Gorges Reservoir, Ministry of Education, School of Geographical Sciences, Southwest University;Key Laboratory of Eco-environments in Three Gorges Reservoir, Ministry of Education, School of Geographical Sciences, Southwest University;Key Laboratory of Eco-environments in Three Gorges Reservoir, Ministry of Education, School of Geographical Sciences, Southwest University |
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| Abstract: | Taking the Wentangxia hot springs in Chongqing and the hot springs at Xiaojiang fault zone in the East Yunnan as the research object,the hydrogeochemic features are studied in the paper.It is found that the hydrogeochemic features of the hot springs outcrop from Wentangxia anticline are similar because of the same geologic backgrounds,and their hydrochemistry types are SO4-Ca(Mg);but that the hydrochemic features of the thermal water outcrop from Xiaojiang fault zone are quiet different for their difference... |
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| Keywords: | hot spring hydrogeochemical feature Wentangxia anticline Xiaojiang fault zone |
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