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    周长松, 邹胜章, 朱丹尼, 林永生, 王佳, 樊连杰, 李军, 蓝芙宁, 李衍青, 邓日欣, 缪雄谊. 四川昭觉地区优质偏硅酸地下水的特征、成因及其开发利用建议[J]. 中国地质, 2022, 49(3): 849-859. DOI: 10.12029/gc20220312
    引用本文: 周长松, 邹胜章, 朱丹尼, 林永生, 王佳, 樊连杰, 李军, 蓝芙宁, 李衍青, 邓日欣, 缪雄谊. 四川昭觉地区优质偏硅酸地下水的特征、成因及其开发利用建议[J]. 中国地质, 2022, 49(3): 849-859. DOI: 10.12029/gc20220312
    ZHOU Changsong, ZOU Shengzhang, ZHU Danni, LIN Yongsheng, WANG Jia, FAN Lianjie, LI Jun, LAN Funing, LI Yanqing, DENG Rixin, MIAO Xiongyi. Characteristics, causes and development suggestions of high quality groundwater containing metasilicate in Zhaojue area, Sichuan Province[J]. GEOLOGY IN CHINA, 2022, 49(3): 849-859. DOI: 10.12029/gc20220312
    Citation: ZHOU Changsong, ZOU Shengzhang, ZHU Danni, LIN Yongsheng, WANG Jia, FAN Lianjie, LI Jun, LAN Funing, LI Yanqing, DENG Rixin, MIAO Xiongyi. Characteristics, causes and development suggestions of high quality groundwater containing metasilicate in Zhaojue area, Sichuan Province[J]. GEOLOGY IN CHINA, 2022, 49(3): 849-859. DOI: 10.12029/gc20220312

    四川昭觉地区优质偏硅酸地下水的特征、成因及其开发利用建议

    Characteristics, causes and development suggestions of high quality groundwater containing metasilicate in Zhaojue area, Sichuan Province

    • 摘要:
      研究目的 近年来,随着生活水平的不断提高,人们对健康饮水的要求也在不断提高,寻找与开发富含H2SiO3等矿物质优质地下水已成为关键。
      研究方法 本文以昭觉地区水文地质调查工程、地下水污染调查工程所获取的地下水化学数据为基础,探讨了昭觉地区富H2SiO3地下水的分布特点、元素水文地球化学特征、形成条件及成因。
      研究结果 结果显示:(1)全县富H2SiO3(≥25 mg/L)地下水均属于低矿化度偏碱性水,分布在基底岩石为玄武岩的6个片区,H2SiO3含量一般介于25.74~46.04 mg/L,pH含量一般介于7.4~8.58,TDS含量一般介于49.4~333 mg/L;(2)玄武岩地下水存在HCO3-Ca、HCO3-Ca·Mg、HCO3-Ca·Na、HCO3-Ca·Mg·Na、HCO3-Na等5种水化学类型,总体以HCO3-Ca·Mg为主,其次为HCO3-Ca,再次为HCO3-Ca·Na,三者分别占总采样点数的50.00%、25.76%、12.12%;(3)全县富H2SiO3地下水的形成受水岩相互作用、硅酸盐矿物的分布范围及其可溶性、围岩裂隙发育程度、水源涵养及补给条件等四方面因素影响,其中水岩相互作用占据主导作用;(4)在后续开发利用过程中,需进一步揭示影响地下水中H2SiO3分布与迁移的因素。
      结论 研究结果可以为昭觉地区矿泉水产业的发展及城乡优质水源地的建设提供依据。

       

      Abstract:
      This paper is the result of hydrogeological survey engineering.
      Objective In recent years, the drinking water health issues has been taken due to the improvement of living standards. Finding and developing high- quality groundwater with high- level minerals (e.g. H2SiO3) has become the key step in improving human health.
      Methods The hydrogeological survey and groundwater pollution survey were carried out in the Zhaojue County, and the spatial distributions of H2SiO3-rich groundwater, hydrogeochemical components characteristics and factors were revealed.
      Results The main results including: (1)The groundwater with H2SiO3 (≥ 25mg/L) was identified as the low salinity and alkaline water, which distributed in the six areas with the basement rocks of basalt. The H2SiO3 concentration was generally 25.74-46.04 mg/L, pH level was generally 7.4- 8.58, and TDS level is generally 49.4- 333 mg/L; (2)The H2SiO3- rich groundwater of study area was characterized by the low mineralization while the main hydrochemical types of groundwater are HCO3- Ca·Mg and HCO3- Ca; (3) The H2SiO3- rich groundwater was influenced by the water- rock interactions, the distribution range and solubility of silicate minerals, the development of surrounding rock fissures, and water conservation and recharge conditions in the county, among which the water- rock interactions play a critical role; (4) It is necessary to further reveal the main factors affecting the distribution and migration of H2SiO3 in groundwater in the subsequent development and utilization process.
      Conclusions The results can provide a basis for the development of mineral water industry and the construction of urban and rural high-quality water sources in Zhaojue area.

       

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