| 地下水中微量组份H2SiO3富集的地质地球化学环境 |
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| 关键词:groundwater trace component H2SiO3 geochemical environment |
| 基金项目:国家科委"八五"重点科技攻关项目(编号:85-925-05-06)"区域地球化学与农业和健康" |
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| Geological-Geochemical Environment for the Enrichment of Trace Component H2SiO3 in Groundwater |
| Based on an analysis of chemical data of325 H2SiO3-rich groundwatersamples as well as their geochemical environments and geological settings, theauthors studied the relationship between the enrichment of H2SiO3 in groundwaterand the properties of the aquifer media and investigated geochemical characteristics of such groundwater. The results show that the formation of H2SiO3-enriched groundwater is closely related to such geochemical environmental factors as aquifer media and average SiO2 abundance. The most favorable geological environment for the enrichment of H2SiO3 in groundwater is intermediate-acid intrusive rocks, followed by regional metamorphic rocks, eruptive rocks and clastic rocks. It is also revealed that the H2SiO3 concentration in the groundwater is related to water types and pH values. HCO3-Ca type, HCO3-Ca·Na type, alkaline typeand acid groundwaters are favorable to the enrichment of H2SiO3. |
| LIU Qing-xuan,WANG Gui-ling,ZHANG Fa-wang.2004.Geological-Geochemical Environment for the Enrichment of Trace Component H2SiO3 in Groundwater[J].Acta Geoscientica Sinica,25(5):575-578. |
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