Open AccessMethods for obtaining sorption data from uranium-series disequilibria
Author(s) -
David L. Finnegan,
E.A. Bryant
Publication year - 1987
Publication title -
osti oai (u.s. department of energy office of scientific and technical information)
Language(s) - English
Resource type - Reports
DOI - 10.2172/60342
Subject(s) - uranium , thorium , radium , sorption , mineralogy , weathering , retardation factor , series (stratigraphy) , groundwater , geology , isotopes of uranium , chemistry , radiochemistry , geochemistry , nuclear physics , geotechnical engineering , physics , paleontology , organic chemistry , adsorption , column chromatography
Two possible methods have been identified for obtaining in situ retardation factors from measurements of uranium-series disequilibria at Yucca Mountain. The first method would make use of the enhanced {sup 234}U/{sup 238}U ratio in groundwater to derive a signature for exchangeable uranium sorbed on the rock; the exchangeable uranium would be leached and assayed. The second method would use the ratio of {sup 222}Rn to {sup 234}U in solution, corrected for weathering, to infer the retardation factor for uranium. Similar methods could be applied to thorium and radium
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