Hydrogeology of an ancient arid closed basin: Implications for tabular sandstone-hosted uranium deposits
| Autor: | Richard F. Sanford |
|---|---|
| Rok vydání: | 1990 |
| Předmět: |
inorganic chemicals
geography geography.geographical_feature_category Evaporite technology industry and agriculture Geochemistry chemistry.chemical_element Geology Sedimentary basin Uranium Structural basin complex mixtures Mineral resource classification Paleontology Uranium ore chemistry Geologic time scale Sedimentary rock |
| Zdroj: | Geology. 18:1099 |
| ISSN: | 0091-7613 |
| DOI: | 10.1130/0091-7613(1990)018<1099:hoaaac>2.3.co;2 |
| Popis: | Hydrogeologic modeling shows that tabular-type uranium deposits in the grants uranium region of the San Juan basin, New Mexico, formed in zones of ascending and discharging regional ground-water flow. The association of either lacustrine mudstone or actively subsiding structures and uranium deposits can best be explained by the occurrence of lakes at topographic depressions where ground water having different sources and compositions is likely to converge, mix, and discharge. Ascending and discharging flow also explains the association of uranium deposits with underlying evaporites and suggests a brine interface. The simulations contradict previous suggestions that ground water moved downward in the mudflat. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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