Chemical Geology: Isotope Geoscience section
Research articleInterpretation of activity ratios in groundwaters
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Cited by (15)
Uranium isotopes as a tracer of sources of dissolved solutes in the Han River, South Korea
2009, Chemical GeologyCitation Excerpt :In this situation, the inputs from bedrock and deep horizons of the weathering profiles, as well as from superficial soil horizons, have significant effects on the 234U/238U activity ratios of river water. Generally, an enhanced U activity ratio in groundwater can arise from the α-recoil process, which would require either very large U concentrations at the water–rock interface or very long residence times, or it can arise from a steady-state chemical etch/leach process within relatively short timescales (Dickson and Davidson, 1985; Bonotto and Andrews, 1993, 2000; Luo et al., 2000; Durand et al., 2005). To investigate possible impacts on the 234U/238U activity ratio in the Han River system, we collected samples from springs, drainage from an abandoned coalmine, and groundwater from the Han River basin (Table 2).
The transport of U- and Th-series nuclides in sandy confined aquifers
2003, Geochimica et Cosmochimica ActaNatural radioactive nuclides in some Tunisian thermo-mineral springs
2002, Journal of Environmental RadioactivityDetermination and comparison of uranium and radium isotopes activities and activity ratios in samples from some natural water sources in Morocco
2001, Journal of Environmental RadioactivityIn-situ radionuclide transport and preferential groundwater flows at INEEL (Idaho): Decay-series disequilibrium studies
2000, Geochimica et Cosmochimica Acta