 | Plášil, J., Sejkora, J., Čejka, J., Škoda, R., Goliáš, V. (2009) Supergene mineralization of the Medvědín uranium deposit, Krkonoše Mountains, Czech Republic. Journal of GEOsciences, 54 (1) 15-56 | Journal (article/letter/editorial) | | mineralization of the Medvědín uranium deposit, Krkonoše Mountains, Czech Republic† Jakub Plášil1,2*, Jiří...Museum, Václavské nám. 68, 115 79 Prague 1, Czech Republic; jakub_plasil@nm.cz Institute of Geochemistry...Faculty of Science, Albertov 6, 128 43 Prague 2, Czech Republic Institute of Earth Sciences, Faculty of Science...Masaryk University, Kotlářská 2, 611 37 Brno, Czech Republic Corresponding author Dedicated to everlasting...mineralization of the hydrothermal vein uranium deposit Medvědín (Krkonoše Mts., northern Bohemia) is rather |  | Lobeck, Haylie L., Balboni, Enrica, Parker, Connor J., Kohlgruber, Tsuyoshi A., Xu, Mengyu, Boukdad, Sara, Ridder, Henry M., Traustason, Hrafn, Isner, Jordan K., Dzik, Ewa A., Burns, Peter C. (2020) Dissolution of poorly soluble uranyl phosphate phases in the Metaautunite Subgroup under uranyl peroxide cage cluster forming conditions. American Mineralogist, 105 (2) 182-193 doi:10.2138/am-2020-7106 | Journal (article/letter/editorial) | | Abstract Uranyl phosphate minerals are widespread in uranium deposits and normally exhibit very low solubility...and metaautunite subgroup impact the mobility of uranium in the environment and have inspired groundwater...their low solubility. The importance of soluble uranium-bearing macro-anions, including nanoscale uranyl...relative to solubilization of normally low-solubility uranium minerals. Eight synthetic analogs of metaautunite...hydrated radii, Li+ and Na+. The details of the uranium speciation in solution depended on the pH and counter |  | Owen, Nicholas D., Cook, Nigel J., Rollog, Mark, Ehrig, Kathy J., Schmandt, Danielle S., Ram, Rahul, Brugger, Joël, Ciobanu, Cristiana L., Wade, Benjamin, Guagliardo, Paul (2019) REE-, Sr-, Ca-aluminum-phosphate-sulfate minerals of the alunite supergroup and their role as hosts for radionuclides. American Mineralogist, 104 (12) 1806-1819 doi:10.2138/am-2019-7116 | Journal (article/letter/editorial) | | are minor components of uranium-bearing copper ores from the Olympic Dam deposit, South Australia. They...the grain-scale. Samples representative of the deposit (flotation concentrate and tailings), as well as...and 210Pb, both over geological time within the deposit and during ore processing. These data highlight...(Johnson and Cross 1995) Olympic Dam Cu-U-Au-Ag deposit, South Australia (Ehrig et al. 2012). Until now...via both geological processes in situ within the deposit and during ore processing (flotation and subsequent |  | Sejkora, J., Plášil, J., Císařová, I., Škoda, R., Hloušek, J., Veselovský, F., Jebavá, I. (2011) Interesting supergene Pb-rich mineral association from the Rovnost mining field, Jáchymov (St. Joachimsthal), Czech Republic. Journal of GEOsciences, 56 (3) 257-271 | Journal (article/letter/editorial) | | mining field, Jáchymov (St. Joachimsthal), Czech Republic Jiří Sejkora1*, Jakub Plášil2, Ivana Císařová3...Museum, Václavské nám. 68, 115 79 Prague 1, Czech Republic; jiri_sejkora@nm.cz Mineralogical Crystallography...University, Hlavova 2030, 128 40 Prague 2, Czech Republic Institute of Geological Sciences, Masaryk University...611 37 Brno, Czech Republic U Roháčových kasáren 24, 100 00 Prague 10, Czech Republic Czech Geological...Geological Survey, Geologická 6, 152 00 Prague 5, Czech Republic Corresponding author Rich supergene mineral association |  | Sejkora, J., Škovíra, J., Čejka, J., Plášil, J. (2009) Cu-rich members of the beudantite-segnitite series from the Krupka ore district, the Krušné hory Mountains, Czech Republic. Journal of GEOsciences, 54 (4) 355-371 | Journal (article/letter/editorial) | | series from the Krupka ore district, the Krušné hory Mountains, Czech Republic Jiří Sejkora1*, Jiří Škovíra2...79 Prague 1, Czech Republic; jiri_sejkora@nm.cz Martinka, 417 41 Krupka III, Czech Republic Corresponding...supergroup) were found at the Krupka deposit, Krušné hory Mountains, Czech Republic. They form yellow-green irregular...thermogravimetric data, infrared spectroscopy, Krupka deposit Received: 7 October 2009; accepted 18 December...series (alunite supergroup) in the Krupka ore district. This paper is a part of the systematic research |  | Števko, M., Uher, P., Ondrejka, M., Ozdín, D., Bačík, P. (2014) Quartz-apatite-REE phosphates-uraninite vein mineralization near Čučma (eastern Slovakia): a product of early Alpine hydrothermal activity in the Gemeric Superunit, Western Carpathians. Journal of GEOsciences, 59 (3) 209-222 | Journal (article/letter/editorial) | | in the Gemeric Superunit (e.g., Kurišková uranium deposit) during early Alpine hydrothermal activity...occurrence was discovered and prospected by the former Uranium Survey company in 1960’s (Šváb et al. 1966). First...veinlets and aggregates of muscovite, Fe-oxide phase (hematite or magnetite), and uraninite. Using cold cathodoluminescence...composition that is close to the theoretical end member. Uranium contents attain 0.87 to 0.91 apfu, whereas Th concentrations...Y)3+ = 3U4+ + □. However, a possible presence of uranium also in U6+ form together with negligible contents |
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