Hydrogeochemistry of the Coxilha das Lombas Aquifer, Brazil |
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Authors: | Ronaldo Herlinger Jr Antonio Pedro Viero |
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Institution: | (1) Instituto de Geociências, Universidade Federal do Rio Grande do Sul, Caixa Postal 15.001, Porto Alegre, RS, Brazil |
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Abstract: | The hydrogeochemical characterization of Coxilha das Lombas Aquifer, Brazil, was studied. Chemical characteristics from 23
groundwater samples and meteoric waters data from public registers were used. The ionic speciation and mineral dissolution/precipitation
was calculated by EQ3/6 package software. The results showed low total dissolved solids (TDS) values and slightly acidic pH.
The concentration of most abundant ions usually followed this trend Cl−>HCO3
+>SO4
2−>Na+. The characteristics of groundwaters and the chemistry similarity with the meteoric waters reflect their short residence
time, due to high hydraulic conductivity, and low degree of water/rock interactions, due to sands composed mainly of quartz. |
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Keywords: | Groundwater Hydrogeochemistry Coxilha das Lombas Aquifer EQ3/6 |
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