Primary Minerals and Age of The Hydrothermal Quartz Veins Containing U-Mo-(Pb, Bi, Te) Mineralization in the Majerská Valley near Čučma (Gemeric Unit, Spišsko-Gemerské Rudohorie Mts., Slovak Republic)

An occurrence of vein U-Mo mineralization is located in the Majerská valley near Čučma, about 7 km to NNE district town Rožňava (Eastern Slovakia). Mineralization hosted acidic metapyroclastics Silurian Bystrý Potok Fm. (Gemeric Unit), and originated following stages: (I.) quartz I, fluorapatite I; (II.) II, zircon, rutile chlorite, tourmaline; (III.) uraninite, molybdenite, U-Ti oxides; (IV.) pyrite ullmannite, gersdorffite, cobaltite; (Va.) galena, bismuth, tetradymite, joséite A B, Bi3(TeS)2 mineral phase, (BiPb)(TeS) ikunolite; (Vb.) minerals kobellite–tintinaite series, cosalite; (VI.) II; (VII.) titanite, chlorite; (VIII.) supergene phases. The chemical in-situ electron-microprobe U-Pb dating uraninite from a studied yielded an average age around 265 Ma, corresponding Guadalupian Epoch Permian; obtained data corresponds with Gemeric S-type granites. correlation granites spatial connection Čučma granite allows us assume that it Hercynian, granite-related (perigranitic) mineralization.