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Thirty-four springs were sampled on five different source rocks in the upper Ecker watershed of the Northern Harz Mountains (Germany) four times during the course of 1995. The analyses included 41 cations and the major anions. Approximately 90% of the rocks in the upper Ecker watershed are low in basic cations, which inhibit the neutralisation of hydrogen-ion loading. As a consequence, the concentrations...
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