Uranium remobilisation in anoxic deep rock-groundwater system in response to late Quaternary climate changes – Results from Forsmark, Sweden

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Suksi , J , Tullborg , E-L , Pidchenko , I , Krall , L , Sandström , B , Kaksonen , K , Vitova , T , Kvashnina , K O & Göttlicher , J 2021 , ' Uranium remobilisation in anoxic deep rock-groundwater system in response to late Quaternary climate changes – Results from Forsmark, Sweden ' , Chemical Geology , vol. 584 , 120551 . https://doi.org/10.1016/j.chemgeo.2021.120551

Title: Uranium remobilisation in anoxic deep rock-groundwater system in response to late Quaternary climate changes – Results from Forsmark, Sweden
Author: Suksi, Juhani; Tullborg, Eva-Lena; Pidchenko, Ivan; Krall, Lindsay; Sandström, Björn; Kaksonen, Kai; Vitova, Tonya; Kvashnina, Kristina O.; Göttlicher, Jörg
Other contributor: University of Helsinki, Department of Chemistry
Date: 2021-12-05
Language: eng
Number of pages: 16
Belongs to series: Chemical Geology
ISSN: 0009-2541
DOI: https://doi.org/10.1016/j.chemgeo.2021.120551
URI: http://hdl.handle.net/10138/335470
Abstract: Unusually high uranium (U) concentrations (up to 175 mu g/L) have been measured in groundwater at depths between 400 and 650 m at the Forsmark site, eastern Sweden. Since it is unlikely that such high concentrations formed under the stagnant and low redox groundwater conditions that currently prevail, this study employs Useries isotopes to understand how the recent evolution (
Subject: 116 Chemical sciences
U mobility
U redistribution
U series modelling
Redox conditions
Groundwater
Fracture coatings
Glaciation cycles
Climate changes
REDOX CONDITIONS
NATURAL URANIUM
DECAY SERIES
SPECTROSCOPY
DISEQUILIBRIUM
MIGRATION
COMPLEX
THORIUM
RECOIL
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