Slovak Republic
Over forty uranium deposits or occurrences were recorded by Kolektiv (1984) in Slovak Republic. They are contained in seven areas within the West Carpathians. Figure 14.1 provides a listing and distribution of the locations.
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w Systematic exploration for uranium commenced in 1952 in Slovakia, then a territory of the =SSR. It was intensified after 1964 following the discovery of significant uranium mineral ization in copper deposits at Novoveská Huta. As a result, a number of uranium occurrences were found through the 1980s or early 1990s in areas shown in $ Fig. 14.1. Uranium explo ration revived in the first decade of the 21st century, mainly in areas of known uranium mineralization. Reported mining of copper veins on the northern slopes of the Strazansky Kopec near Novoveská Huta dates back to the 1630s, but archeological finds prove prehistoric mining activities in addition. Copper exploitation ceased gradually during the 19th century; the last operation, Johannis Mine, closed in 1896. Estimated total production of Cu ore was in excess of 500 000 t. Uranium extraction started on an exploratory basis in the Novoveská Huta-Maly MuráE area in 1964 and lasted on a small scale into the 1970s. Ore recovery was largely by underground means with a few open pit mines. Recent mining in the area was restricted to gypsum recovery. © Springer-Verlag Berlin Heidelberg 2016 F.J. Dahlkamp, Uranium Deposits of the World, DOI 10.1007/978-3-540-78554-5_14
Both, uranium and copper mining left a number of waste dumps behind. Since the copper veins locally carry uranium, old dumps of the early mines may contain sporadic uranium as well as sulfides. Uranium exploration resumed on a small scale in the 1980s and early 1990s by government institutions. Revived exploration in the first decade of the 21st century was led by private enterprises and established substantial resources near the Jahodná ski resort (near Košice) in eastern Slovak Republic.
14.1 Spiš Gemer Mountains, West Carpathians The Spiš Gemer Mountains in central eastern Slovak Republic are part of the northern segment of the Slovakian Ore Mountains (Slovenské Rudehorie). Three zones of uranium mineralization are distinguished by Kolektiv (1984), from north to south: the North, Central, and South Gemer zones ($ Fig. 14.1). Significant uranium concentrations are restricted to the North Gemer Zone. Sources of information. Grecula et al. (1995), Kantor (1959), Kolektiv (1984), Rojkovi9 (1997), Rojkovi9 and Franc6 (1992), Rojkovi9 et al. (1991), amended by data from authors listed in subsequent sections.
14.1.1 North Gemer Zone Uranium mineralization in the North Gemer Zone is primarily of polymetallic U-Mo composition and stratiform distribution hosted by Permian volcanics and verrucano-type sediments. Some deposits contain vein and stockwork ore bodies associated with faults, as well as redistributed uranium in Cu sulfide veins of Alpine age. Explored or developed prospects include, from west to east ($ Fig. 14.2): >ierna hora and Pátrov grúE (SW of Stratená village), Hanisková, MuráE, Novoveská Huta, Hnil:ík, Matejovce nad Hornádom, Porá:, Petrova hora hill near Krompachy, Košická Hámre, Košická Belá, and Kurišková/Jahodná. Uranium production was restricted to some small deposits in the Novove
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