Abstract
The calculation results of ground water equilibrium with the major water-bearing rock minerals (Moldova) are presented under the condition of anthropogenic impact. As a calculation model the HydroGeo software is used. It is shown that both “ground water-rock” and “intermediate water-rock” systems are in equilibrium with a number of minerals.
Highlights
Ground water in Moldova is exposed to intensive anthropogenic impact
The “water - rock” system is a global one on the Earth and its geological evolution leads to development of various geochemical types of ground and surface waters, different secondary mineral neogenesis including weathering crust, hydrothermally-transformed rocks, mineral deposits, etc
All studied waters of Moldova territory are in equilibrium with carbonate minerals, even groundwaters of Kishinev, despite the rapid water exchange and short time of groundwater interaction with rock
Summary
Ground water in Moldova is exposed to intensive anthropogenic impact. The representative examples of strong anthropogenic input are groundwaters of Kishinev, where an excess of nitrate pollution norms is observed, and the most examined Lower-Sarmatian aquifer, which is used for central water supply of residential areas and industrial sites.The “water - rock” system is a global one on the Earth and its geological evolution leads to development of various geochemical types of ground and surface waters, different secondary mineral neogenesis including weathering crust, hydrothermally-transformed rocks, mineral deposits, etc. [1]. Ground water in Moldova is exposed to intensive anthropogenic impact. The representative examples of strong anthropogenic input are groundwaters of Kishinev, where an excess of nitrate pollution norms is observed, and the most examined Lower-Sarmatian aquifer, which is used for central water supply of residential areas and industrial sites. The “water - rock” system is a global one on the Earth and its geological evolution leads to development of various geochemical types of ground and surface waters, different secondary mineral neogenesis including weathering crust, hydrothermally-transformed rocks, mineral deposits, etc. To understand the evolution mechanisms of underground hydrosphere composition is generally impossible without detailed research in thermodynamic equilibrium condition of groundwater with major water-bearing rock minerals. The main goal of the article is to reveal the basic features of equilibrium in “water-rock” system and, to determine the typical factors of water formation under the anthropogenic impact
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