[en] All countries which use nuclear energy to generate electricity face the problem of high level radioactive waste (HLRW) and spent fuel. Until 1987, this problem was addressed in Czechoslovakia by transferring the material to the former USSR. After the political changes in Central and Eastern Europe in 1989 and the division of Czechoslovakia into two states in 1993, Slovakia independently faced the complex problem of creating its own deep repository. Although Slovakia has begun to solve the problem of HLRW and spent fuel only recently, it can take advantage of the theoretical and practical knowledge of other countries in this field. The geological aspects of the setting of the deep repository of HLRW have been studied within the project ^Repositories of radioactive and hazardous wastes in geological environment. The assessment of the Slovak Republic for creating a repository of HLRW was based on the application of internationally determined and applied criteria

[en] Small dark grey phosphorus-rich concretions, or locally also the relics of stratiform bodies (up to 12 cm thick), were identified in the Male Karpaty Mts. (Tatric unit of the Western Carpathians, SW Slovakia) within the cover basal quartzites. The dark brown phosphate cement, of presumably biogenic (planctonic) origin, is composed of the cryptocrystalline to fine-grained aggregate of fluorapatite, which fills the space between the quartz clasts. The apatite content in studied rock reaches ca 10-12 vol. %, and in the flat black nodules even more. Development of tiny apatite crystals, as well as the Sr-enriched phases (up to 4.6 wt.% SrO) were probably related to diagenetic or anchimetamorphic processes. In comparison to the common quartzites, as well as to surrounding crystalline rocks, apatite-bearing quartzite shows a noticeable increase in the content of P, Ca, F, Sr, As, U, MREE and partly HREE. Origin of the phosphate concretions may be related to the local marine impact in the overall continental sedimentation environment of the Lower Triassic quartzites. A discussion raises a question of possible syn-sedimentary genesis of a special type of tourmaline pebbles, occurring in the same rock-unit from nearby locality. (authors)

[en] On this poster important geological sites in Slovak Republic are presented. Geological sites are listed according to geological origin: (1) Mesozoic; (2) Geomorphology and engineering geology; (3) Mineral mining and history of mining; (4) Quaternary sites; (5) Paleogene and Neogene; (6) Hydrogeology; (7) Neovolcanites; (8) Older and younger Paleozoic, Mesozoic metamorphic, Veporicum; (9) Magmatic. This map contains 451 sites, which are by nature divided into 11 categories, many sites can be classified into several categories.