Geochemical mapping at the scale of 1:25,000 for the map sheet Piekary Śląskie M-34-50-D-d is a continuation of detailed mapping work initiated in 1996–1999 by the pilot sheet Sławków M-34-63-B-b of the Detailed Geochemical Map of Upper Silesia (Lis, Pasieczna, 1999). By 2016, the Polish Geological Institute – National Research Institute (PIG-PIB) had developed 17 map sheets published in the form of separate atlases. All work was financed by the National Fund for Environmental Protection and Water Management after approval by the Ministry of the Environment (currently the Ministry of Climate and Environment).

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