苏北灌南地下水补给源同位素地球化学分析
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P641

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国家自然科学基金(51578212)


Isotope geochemistry analysis of groundwater recharge source in Guannan, Northern Jiangsu Province
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    摘要:

    为了找到灌南地区汤沟酒厂水质明显优于其他水的原因,追溯优质地下水的来源,以便优化地下水利用,采用氢氧同位素分析和地球化学分析方法对灌南地区地下水进行研究,分析灌南地区河水、井水与降水的氢氧同位素关系和主要阴阳离子关系。结果表明:灌南地区深层承压水的氢氧同位素关系与潜水和地表水呈现明显差异,承压水中富含锶和偏硅酸,这也是潜水和地表水中所没有的。由此推断,汤沟酒厂酿酒所用的深层承压地下水应该来自于外源,隐伏火山玄武岩地下水的补给源区可能位于青藏高原东南与云贵高原一带。汤沟镇新生代隐伏火山玄武岩中可能存在外源水的导水通道,孔洞型火山玄武岩符合导水通道岩石特征。

    Abstract:

    In order to find the reason that water quality of Guannan Tanggou winery area is better than that of others, and trace the source of high-quality groundwater to optimize the utilization of groundwater, the groundwater in Guannan area was studied by the methods of hydrogen-oxygen isotope and geochemical analysis, probing the relationship between hydrogen-oxygen isotope and main anion and cation existing in the river water, well water and precipitation. The results show that, the hydrogen-oxygen isotopic relationship of deep confined water in Guannan area is obviously different from that of diving water and surface water. The strontium and metasilicate are rich in the confined water, while they are not available in the diving water and surface water. It is inferred that the deep confined groundwater used by Tanggou winery should come from the exogenous source. The recharge source area of concealed volcano basalt groundwater might be located in the Southeastern Tibetan Plateau and Yunnan Guizhou Plateau area. There might be water conducting channel of the exogenous water in the cenozoic concealed volcanic basalt in Tanggou town. The pore-type volcanic basalt is in accordance with the rock characteristics of water flowing channel.

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郑欣虹,陈建生.苏北灌南地下水补给源同位素地球化学分析[J].水资源保护,2018,34(1):24-30.(ZHENG Xinhong, CHEN Jiansheng. Isotope geochemistry analysis of groundwater recharge source in Guannan, Northern Jiangsu Province[J]. Water Resources Protection,2018,34(1):24-30.(in Chinese))

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  • 收稿日期:2017-08-15
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  • 在线发布日期: 2018-01-22
  • 出版日期: 2018-01-20