1. Faculty of Earth Sciences; University of Silesia; ul. Będzińska 60 41-200 Sosnowiec Poland
2. Faculty of Chemistry; Wrocław University of Technology; ul. Smoluchowskiego 23 50-370 Wrocław Poland
3. Institute of Geological Sciences; University of Wrocław; ul. Cybulskiego 30 50-205 Wrocław Poland
4. Institute of Geology; Adam Mickiewicz University; ul. Maków Polnych 16 60-606 Poznań Poland