Uranium mineralization in Slovakia

The prospect and research of uranium mineralization started in Slovakia in the fiftieths. The first known uranium deposit was found in Novoveska Huta. The study of uranium mineralization continued in the early seventieths in the Permian rocks of the Kozie chrbty Mts. in uranium deposits Kravany, Vikartovce, Svabovce and Spissky Stiavnik. Later, the cooperation with the Uranium Survey continued in the Permian rocks of the Povazsky Inovec Mts in uranium deposits Kalnica and Selec. There was found also more extensive uranium mineralization underlying the known mineralized horizon in Novoveska Huta and other localities during the seventieths. Their research was accompanied by extensive drilling, mining and more detailed study of lithology, stratigraphy, tectonic, mineralogy and geochemistry of uranium mineralization. During the later research of Uranium Survey in the eightieths the study was renewed and new deposits were found in the Permian rocks of the eastern Slovakia. The last important U-Mo deposit was found by URANPRES in Jahodna. During 1991-1993 the mineralogical, petrological and geochemical research of U-Mo ores continued in Novoveska Huta, Matejovce nad Hornadom, Rudnany-Porac and Jahodna. The study included technological samples of U-Mo ores. There was distinguished relation between uranium and molybdenum mineralization and the difference in their distribution was characterized. Study of the rare earth elements accompanying the radioactive mineralization started in 1992. This monograph consists form the next chapters: (1) Methods used; (2) Geological settings of uranium mineralization; (3) Mineralogical characteristics of uranium mineralization; (4) Geochemical characteristics of uranium mineralization; (5) Origin of mineralization; (6) Conclusions; and References. (author)