Geochemické složení uraninitu ze západomoravských uranových ložisek

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Title in English	Geochemistry of uraninites from the Western Moravian Uranium Province
Authors	WERTICH Vojtěch KUBEŠ Martin HOLÁ Markéta MOZOLA Juraj LEICHMANN Jaromír
Year of publication	2019
Type	Conference abstract
MU Faculty or unit	Faculty of Science
Citation
Description	Ideal uraninite formula of uraninite (UO2) is not common in natural environment (Janezcek a Ewing 1992). Geochemical composition of uraninite reflects four main processes: 1) substitution for U during primary crystalization (eg. Y, REE); 2) radioactive decay, genesis of radiogenic Pb isotopes; 3) incorporation of cations, namely Ca, Si and Fe; and 4) oxidation of U4+ to U6+ (Janezcek a Ewing 1992, Alexandre et al. 2016). It appears that in some cases is possible to distinguish individual uranium deposits from each other based on geochemical composition of uraninite (Frimmel et al. 2014, Alexandre et al. 2016).
Related projects:	Dlouhodobý výzkum geochemických bariér pro ukládání jaderného odpadu