Since 1999, the LGRB has been issuing a map of mineral raw materials on a scale 1: 50,000 (KMR50) out. It summarises the results of exploratory work carried out to implement the state government’s raw material security concept. In the KMR50 and the accompanying explanatory book, the current state of knowledge about the near-surface deposits of mineral raw materials and their current and previous use is presented in a clear form.
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