| 新田县地下水锶富集环境及来源分析 |
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| 引用本文： | 苏春田,黄晨晖,邹胜章,谢代兴,赵光帅,唐建生,罗 飞,杨 杨.新田县地下水锶富集环境及来源分析[J].中国岩溶,2017,36(5):678-683. |
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| 作者姓名： | 苏春田 黄晨晖 邹胜章 谢代兴 赵光帅 唐建生 罗 飞 杨 杨 |
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| 作者单位： | 1.中国地质大学（武汉）环境学院/中国地质科学院岩溶地质研究所/国土资源部、广西岩溶动力学重点实验室 |
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| 基金项目： | 中国地质调查局地质调查项目（DD20160303、DD20160301、DD20160285） |
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| 摘 要： | 为掌握新田县地下水锶富集环境及来源，对新田县富锶地下水及对相应地质剖面岩样进行采样分析。结果表明，富锶地下水赋存于泥盆系佘田桥组地层中，地下水锶元素含量具有泥盆系佘田桥组（D3s）＞石炭系岩关阶（C1y）＞泥盆系锡矿山组下段（D3x1）＞泥盆系棋子桥组（D2q）的规律；下降泉、机井中锶元素含量平均值分别为376.57 μg·L-1、2 756.87 μg·L-1，分别是饮用天然矿泉水锶含量最低限值的1.88倍、13.78倍，机井锶元素平均含量远高于下降泉，是其7.32倍；佘田桥组地层岩性为中薄层浅灰色泥灰岩夹灰岩、页岩，岩石中锶含量普遍大于300 mg·kg-1，最高含量为838 mg·kg-1，是地下水中锶元素主要来源。地层平缓的产状、低的降水入渗系数、面状补给、分散渗流为富锶地下水的形成提供了水文地质基础。
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| 关 键 词： | 富集环境 岩溶 锶 来源分析 湖南新田 |
Enrichment environment and sources of strontium of groundwater in Xintian county, Hunan Province |
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| SU Chuntian,HUANG Chenhui,ZOU Shengzhang,XIE Daixing,ZHAO Guangshuai,TANG Jiansheng,LUO Fei and YANG Yang.Enrichment environment and sources of strontium of groundwater in Xintian county, Hunan Province[J].Carsologica Sinica,2017,36(5):678-683. |
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| Authors: | SU Chuntian HUANG Chenhui ZOU Shengzhang XIE Daixing ZHAO Guangshuai TANG Jiansheng LUO Fei and YANG Yang |
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| Institution: | 1.School of Environmental Studies,China University of Geosciences/Institute of Karst Geology,CAGS/ Key Laboratory of Karst Dynamics,MLR＆GZAR2.Institute of Karst Geology,CAGS/ Key Laboratory of Karst Dynamics,MLR＆GZAR |
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| Abstract: | This work attempts to better understanding the enrichment environment and sources of strontium in groundwater in Xintian county, Hunan Province. Groundwater and rocks on geological profiles were sampled and analyzed. The results showed that, (1) Rich-strontium groundwater is present in the strata of D3s, with contents in order for strata, D3s＞C1y＞D3x1＞D2q; (2)The average contents of strontium element of springs and shafts are 376.57μg·L-1 and 2,756.87 μg·L-1, respectively, 1.88 times and 13.78 times the natural mineral water, respectively. Strontium element contents of shafts are much higher than that of descending springs, 7.32 times the descending spring; (3)The lithology of D3s is medium-thick or thin layers of light grey marls, intercalated with limestone and shale, in which strontium contents are generally more than 300 mg·kg-1, with the highest was 838 mg·kg-1, which is the primary source of strontium in groundwater; (4) Many conditions have contributed to the formation of rich strontium in groundwater, such as gentle strata, the low coefficient of precipitation infiltration, planar supplies, and scattered seepage. |
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| Keywords: | enrichment environment karst strontium source analysis Xintian county Hunan Province |
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