Uranium and Multi-element Release from Orthogneiss and Granite (Austria): Experimental Approach Versus Groundwater Composition

A critical review on the occurrence and distribution of the uranium- and thorium-decay nuclides and their effect on the quality of groundwater

“…A study on orthogneiss from Austria concluded that uraninite and thorite could be significant contributors to aqueous uranium concentrations. However, depending on the specific geochemical conditions, sorption phenomena may be more important than mineral release (Elster et al, 2018). Studies in unconsolidated materials have mostly reported that uranium mobilized from adsorption sites is a more important source of uranium in groundwater from these settings than mineral release (Jurgens et al, 2010;Alam and Cheng, 2014).…”