Leaching Experiments on Aquifer Rocks of the Aquitaine Basin (France): Uranium Concentrations and Activity Ratios, Preliminary Results
| Autor: | Christophe Innocent, Philippe Négrel, Eline Malcuit, Emmanuelle Petelet-Giraud |
|---|---|
| Přispěvatelé: | Bureau de Recherches Géologiques et Minières (BRGM) (BRGM) |
| Rok vydání: | 2013 |
| Předmět: |
010504 meteorology & atmospheric sciences
Activity ratios [SDE.MCG]Environmental Sciences/Global Changes Geochemistry Earth and Planetary Sciences(all) chemistry.chemical_element Aquifer Structural basin 010502 geochemistry & geophysics 01 natural sciences [SDU.STU.GC]Sciences of the Universe [physics]/Earth Sciences/Geochemistry Upper eocene Leaching experiments U-series Leachate Aquifer rocks Geomorphology 0105 earth and related environmental sciences geography geography.geographical_feature_category General Medicine Uranium Eocene chemistry Leaching (pedology) Aquitanian Basin Geology |
| Zdroj: | Proceedings of the Fourteenth International Symposium on Water-Rock Interaction, WRI 14 14th International Symposium on Water-Rock Interaction, WRI 14 14th International Symposium on Water-Rock Interaction, WRI 14, Jun 2013, Avignon, France. pp.381-364, ⟨10.1016/j.proeps.2013.03.088⟩ |
| ISSN: | 1878-5220 |
| Popis: | Long-term leaching experiments were done using aquifer rocks of the Aquitaine Basin, ranging in age from Santonian to upper Eocene. Leachates were sampled after one hour, one day, one week, and one month, and were analyzed for U concentrations and activity ratios. Overall, U contents in the leachate decreased with increasing time. U activity ratios were characteristic of each aquifer rock. Only slight variations, when present, were found between the one-week and the one-month leachates. In most cases, the short-lived leachates (one hour, one day) displayed U activity ratios closer to the equilibrium value. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|