impacts of opencast mining of limestone

Deep opencast mines for limestone of Upper Cretaceous age in the northernmost state of Germany, Schleswig-Holstein, greatly impact the local environment. In three pits with depths of nearly 100 m, mine pumping affects deeper aquifers and sometimes shallow ones as well. The total amount of mine water pumped ranges up to 6*106 m3/year. Due to the relief of hydraulic pressure, saline water is ...

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