河北平原深层碱性淡水形成的水文地球化学模拟——以保定、沧州地区为例

郭永海; 沈照理; 钟佐燊

Volume 27 Issue 2

Mar. 2002

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Article Navigation > Earth Science > 2002 > 27(2): 157-162

GUO Yong-hai, SHEN Zhao-li, ZHONG Zuo-shen, 2002. Hydrogeochemical Modeling for the Formation of Deep-Lying Alkaline Fresh Groundwater in Heibei Plain: a Case Study in Baoding and Cangzhou Districts. Earth Science, 27(2): 157-162.

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Hydrogeochemical Modeling for the Formation of Deep-Lying Alkaline Fresh Groundwater in Heibei Plain: a Case Study in Baoding and Cangzhou Districts

1.
Beijing Research Institute of Uranium Geology, Beijing 100029, China
2.
Department of Water Resources and Environmental Engineering, China University of Geosciences, Beijing 100083, China

Received Date: 2001-11-09
Publish Date: 2002-03-25

Abstract

Abstract

The deep-lying alkaline fresh groundwater in sedimentary system in Hebei plain is taken as a research object for the purpose of revealing its chemical formation mechanism. Taking Baoding and Cangzhou districts where the deep-lying alkaline fresh groundwater is widely distributed as a typical study area and using the hydrogeochemical synthetic analysis and modeling methods, the authors discussed the chemical property, distribution and formation environment of deep-lying alkaline fresh groundwater. According to the principle of mass conservation, they set up a mass balance reaction model and studied hydrogeochemical reactions and mass transfer between water and rock along the flow path from piedmont to coastal area so as to have brought to light the chemical evolution law of deep-lying groundwater and the formation mechanism of alkaline fresh water. Their main conclusion is that the deep-lying alkaline fresh groundwater is originated from the evolution of the HCO₃-Ca·Mg water in piedmont area, and that from the piedmont the middle plain, the dissolution and precipitation of calcite and dolomite, the dissolution of albite, gypsum, halite and siderite, and the cation exchange of Ca-Na during the processes of groundwater environment changing from "open" to "closed" are the dominant hydrogeochemical reactions leading to its formation and evolution.
- deep lying alkaline fresh groundwater,
- formation mechanisms,
- hydrogeochemical modeling

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References(6)

References

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