000070819 001__ 70819 000070819 005__ 20230111103818.0 000070819 0247_ $$2doi$$a10.1016/j.proeps.2016.12.122 000070819 0248_ $$2sideral$$a105150 000070819 037__ $$aART-2017-105150 000070819 041__ $$aeng 000070819 100__ $$aKrall, L. 000070819 245__ $$aTracing U mobility in deep groundwater using Ra isotopes 000070819 260__ $$c2017 000070819 5060_ $$aAccess copy available to the general public$$fUnrestricted 000070819 5203_ $$aThe mobility of natural U is compared among four boreholes in a fractured granite using Ra isotopes and geochemical modelling. Rn-222/Ra-226 activity ratios (ARs) spanning an order of magnitude underline differences in reactive surface area. (Ra-224/Ra-228)(ARs) up to 9 indicate recent changes in hydrogeochemistry, and (Ra-226/Ra-228)(ARs) 0.6-30 indicate variable deposition of U. Dissolved U is related to dissolution of a solid U(VI) phase by groundwater with HCO3- > 20 mg.L-1. U reduction is hindered by Ca2UO2(CO3)(3)(0). 000070819 536__ $$9info:eu-repo/grantAgreement/EC/FP7/290336/EU/Metal Transport in the Environment/MetTrans 000070819 540__ $$9info:eu-repo/semantics/openAccess$$aby-nc-nd$$uhttp://creativecommons.org/licenses/by-nc-nd/3.0/es/ 000070819 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion 000070819 700__ $$0(orcid)0000-0003-1463-1682$$aAuque, L.$$uUniversidad de Zaragoza 000070819 700__ $$aTullborg, E.L. 000070819 700__ $$aSuksi, J. 000070819 700__ $$aTrezzi, G. 000070819 700__ $$aGarcia-Orellana, J. 000070819 700__ $$aAndersson, P. 000070819 700__ $$aPorcelli, D. 000070819 7102_ $$12000$$2685$$aUniversidad de Zaragoza$$bDpto. Ciencias de la Tierra$$cÁrea Petrología y Geoquímica 000070819 773__ $$g17 (2017), 484-487$$pProcedia Earth planet. sci.$$tProcedia Earth and Planetary Sciences$$x1878-5220 000070819 8564_ $$s223215$$uhttps://zaguan.unizar.es/record/70819/files/texto_completo.pdf$$yVersión publicada 000070819 8564_ $$s7019$$uhttps://zaguan.unizar.es/record/70819/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada 000070819 909CO $$ooai:zaguan.unizar.es:70819$$particulos$$pdriver 000070819 951__ $$a2023-01-11-10:04:57 000070819 980__ $$aARTICLE