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    Item type:Thesis, Access status: Restricted ,
    Piryt w pokładzie węgla kamiennego 116/2 w ZGE „Janina”, GZW
    (Data obrony: 2014-09-18) Wróbel, Aleksandra
    Wydział Geologii, Geofizyki i Ochrony Środowiska
    The objective of the thesis was to conduct a study of pyrite in the hard coal samples from the deck 116/2 of ZGE „Janina” located in the eastern part of the Upper Silesian Coal Basin. The thesis covered a macro-petrography study of the profile which was created by combining 41 samples. Samples containing pyrite were distinguished and further analysed qualitatively. Mainly diffuse and massive veins and small layers forming discrete nodules and lens of various sizes dominated among the forms of pyrite. The samples were further analysed using an optical microscope. During the microscopic examination 3 groups of pyrite forms were isolated: veins, framboidal pyrite and various other forms. In each of the groups the size of pyrite and macerals around which it was located was determined. Based on the studies, the influence of pyrite forms on the desulphurization of coal, which is possible especially during the crushing and gravity enrichment, was specified.