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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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Schematic of major excavations of the Pomorzany and Olkusz Mines
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Fig1: Schematic of major excavations of the Pomorzany and Olkusz Mines

Mentions: Location of ore deposits exploited by the Olkusz and Pomorzany Mines had crucial meaning. Both deposits occur in grabens which are separated by Olkusz horst (Fig. 1). Olkusz deposit is located within Olkusz graben while Pomorzany deposit occupies a hanging wall block of Pomorzany fault (see Fig. 2).Fig. 1


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)

Schematic of major excavations of the Pomorzany and Olkusz Mines
© Copyright Policy - OpenAccess
Related In: Results  -  Collection

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

Fig1: Schematic of major excavations of the Pomorzany and Olkusz Mines
Mentions: Location of ore deposits exploited by the Olkusz and Pomorzany Mines had crucial meaning. Both deposits occur in grabens which are separated by Olkusz horst (Fig. 1). Olkusz deposit is located within Olkusz graben while Pomorzany deposit occupies a hanging wall block of Pomorzany fault (see Fig. 2).Fig. 1

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