THE CHEMICAL COMPOSITION OF PORE SOLUTIONS IN LOW-PERMEABLE LAYERS AS AN INDICATOR OF GROUNDWATER PROTECTABILITY
A new approach for assessment of groundwater protectability according to the chemical composition of pore solutions in low-permeable layers, which occur between aquifers, is proposed. The conducted research has revealed the hydrochemical heterogeneity of low-permeable layers and its connection with...
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| Date: | 2018 |
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| Main Author: | |
| Format: | Article |
| Language: | Russian |
| Published: |
Institute of Geological Sciences, NAS of Ukraine
2018
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| Online Access: | http://geojournal.igs-nas.org.ua/article/view/126417 |
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| Journal Title: | Geological journal |
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Geological journal| Summary: | A new approach for assessment of groundwater protectability according to the chemical composition of pore solutions in low-permeable layers, which occur between aquifers, is proposed. The conducted research has revealed the hydrochemical heterogeneity of low-permeable layers and its connection with vertical filtration through the rocks. The microzones with fresh hydrocarbonate pore solutions correspond to the zones of increased permeability (zones of intensive flow); the zones with salty sulfate pore solutions correspond to those with decreased permeability (zones of extensive flow). The ratio of these types of zones allows us to estimate the level of permeability for low-permeable layers and to make a conclusion about groundwater protectability from chemical pollutants moving through these layers. The results of groundwater protectability assessment by using the proposed approach for the northwestern region of theDnieperRiver basinare given in this paper. |
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