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| Content Provider | Springer Nature Link |
|---|---|
| Author | Chi, GuoXiang Xue, ChunJi |
| Copyright Year | 2014 |
| Abstract | Uranium deposits in sedimentary basins can be formed at various depths, from near surface to the basement. While many factors may have played a role in controlling the location of mineralization, examination of various examples in the world, coupled with numerical modeling of fluid flow, indicates that the hydrodynamic regime of a basin may have exerted a major control on the localization of uranium deposits. If a basin is strongly overpressured, due to rapid sedimentation, abundance of low-permeability sediments or generation of hydrocarbons, fluid flow is dominantly upward and uranium mineralization is likely limited at shallow depths. If a basin is moderately overpressured, upward moving fluids carrying reducing agents may meet downward moving, oxidizing, uranium-bearing fluids in the middle of the basin, forming uranium deposits at moderate depths. If a basin is weakly or not overpressured, either due to slow sedimentation or dominance of high-permeability lithologies, minor topographic disturbance or density variation may drive oxidizing fluids to the bottom of the basin, leaching uranium either from the basin or the basement, forming unconformity-type uranium deposits. It is therefore important to analyze the hydrodynamic regime of a basin in order to predict the most likely type and location of uranium deposits in the basin. |
| Starting Page | 2928 |
| Ending Page | 2933 |
| Page Count | 6 |
| File Format | |
| ISSN | 16747313 |
| Journal | Science in China Series D: Earth Sciences |
| Volume Number | 57 |
| Issue Number | 12 |
| e-ISSN | 18691897 |
| Language | English |
| Publisher | Science China Press |
| Publisher Date | 2014-10-21 |
| Publisher Place | Heidelberg |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | uranium deposits localization sedimentary basins hydrodynamic regime fluid overpressure Earth Sciences |
| Content Type | Text |
| Resource Type | Article |
| Subject | Earth and Planetary Sciences |
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