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Impact of Zn-Pb mining in the Olkusz ore district on the Permian aquifer (SW Poland).

Motyka J, Postawa A - Environ Sci Pollut Res Int (2013)

Bottom Line: Long-term extensive mining of Zn-Pb ores in the Olkusz area resulted in significant changes of water table levels and chemical composition of water in all aquifers in this area.Short-term effect was freshening in the zones of contact with overlying the Triassic limestones and dolomites.As a result of all these processes, hydrochemical type of water shifted from multi-ion types with various combinations of ions towards higher shares of sulphates, calcium and magnesium.

View Article: PubMed Central - PubMed

Affiliation: AGH University, Al. Mickiewicza 30, 30-059, Krakow, Poland, motyka@agh.edu.pl.

ABSTRACT
Long-term extensive mining of Zn-Pb ores in the Olkusz area resulted in significant changes of water table levels and chemical composition of water in all aquifers in this area. Within the Permian aquifer, hydrochemical type of water evolved in two general stages. Short-term effect was freshening in the zones of contact with overlying the Triassic limestones and dolomites. Long-term effect was a change in flow pattern and, as a consequence, an inflow of naturally altered and antropogenically contaminated water from the Triassic aquifer into the Permian complex. This was especially intensive in densely fissured and fault zones. As a result of all these processes, hydrochemical type of water shifted from multi-ion types with various combinations of ions towards higher shares of sulphates, calcium and magnesium.

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Piper diagram of groundwater in the Permian aquifer in natural conditions
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Fig3: Piper diagram of groundwater in the Permian aquifer in natural conditions

Mentions: Water with TDS below 1 g/L belonged to multi-ion type with various combinations of ions from Cl–SO4–HCO3–Ca–Mg–Na, Na–Mg–Ca–Cl–SO4–HCO3, Na–Ca–Mg–HCO3–Cl–SO4 or HCO3–Cl–Na–Mg–Ca to HCO3–Ca–Mg–Na. It was observed that with increasing mineralisation, amongst cations, a share of magnesium and sodium increased at the expense of calcium (see Fig. 3).Fig. 3


Impact of Zn-Pb mining in the Olkusz ore district on the Permian aquifer (SW Poland).

Motyka J, Postawa A - Environ Sci Pollut Res Int (2013)

Piper diagram of groundwater in the Permian aquifer in natural conditions
© Copyright Policy - OpenAccess
Related In: Results  -  Collection

Show All Figures
getmorefigures.php?uid=PMC3824222&req=5

Fig3: Piper diagram of groundwater in the Permian aquifer in natural conditions
Mentions: Water with TDS below 1 g/L belonged to multi-ion type with various combinations of ions from Cl–SO4–HCO3–Ca–Mg–Na, Na–Mg–Ca–Cl–SO4–HCO3, Na–Ca–Mg–HCO3–Cl–SO4 or HCO3–Cl–Na–Mg–Ca to HCO3–Ca–Mg–Na. It was observed that with increasing mineralisation, amongst cations, a share of magnesium and sodium increased at the expense of calcium (see Fig. 3).Fig. 3

Bottom Line: Long-term extensive mining of Zn-Pb ores in the Olkusz area resulted in significant changes of water table levels and chemical composition of water in all aquifers in this area.Short-term effect was freshening in the zones of contact with overlying the Triassic limestones and dolomites.As a result of all these processes, hydrochemical type of water shifted from multi-ion types with various combinations of ions towards higher shares of sulphates, calcium and magnesium.

View Article: PubMed Central - PubMed

Affiliation: AGH University, Al. Mickiewicza 30, 30-059, Krakow, Poland, motyka@agh.edu.pl.

ABSTRACT
Long-term extensive mining of Zn-Pb ores in the Olkusz area resulted in significant changes of water table levels and chemical composition of water in all aquifers in this area. Within the Permian aquifer, hydrochemical type of water evolved in two general stages. Short-term effect was freshening in the zones of contact with overlying the Triassic limestones and dolomites. Long-term effect was a change in flow pattern and, as a consequence, an inflow of naturally altered and antropogenically contaminated water from the Triassic aquifer into the Permian complex. This was especially intensive in densely fissured and fault zones. As a result of all these processes, hydrochemical type of water shifted from multi-ion types with various combinations of ions towards higher shares of sulphates, calcium and magnesium.

Show MeSH
Related in: MedlinePlus