Chang, Kaiyu; Rong, Hui; Cao, Minqiang; Li, Qingchun; Fang, Yangbo; Wu, Ziyang (2026) Multistage uranium mineralization in organic-rich mudstone: A case study of the Qianjiadian uranium deposit in the Songliao Basin, China. Ore Geology Reviews, 191. 107193 doi:10.1016/j.oregeorev.2026.107193
| Reference Type | Journal (article/letter/editorial) | ||
|---|---|---|---|
| Title | Multistage uranium mineralization in organic-rich mudstone: A case study of the Qianjiadian uranium deposit in the Songliao Basin, China | ||
| Journal | Ore Geology Reviews | ||
| Authors | Chang, Kaiyu | Author | |
| Rong, Hui | Author | ||
| Cao, Minqiang | Author | ||
| Li, Qingchun | Author | ||
| Fang, Yangbo | Author | ||
| Wu, Ziyang | Author | ||
| Year | 2026 | Volume | < 191 > |
| Page(s) | 107193 | ||
| URL | |||
| DOI | doi:10.1016/j.oregeorev.2026.107193Search in ResearchGate | ||
| Generate Citation Formats | |||
| Classification | Not set | LoC | Not set |
| Mindat Ref. ID | 19718624 | Long-form Identifier | mindat:1:5:19718624:6 |
| GUID | 0 | ||
| Full Reference | Chang, Kaiyu; Rong, Hui; Cao, Minqiang; Li, Qingchun; Fang, Yangbo; Wu, Ziyang (2026) Multistage uranium mineralization in organic-rich mudstone: A case study of the Qianjiadian uranium deposit in the Songliao Basin, China. Ore Geology Reviews, 191. 107193 doi:10.1016/j.oregeorev.2026.107193 | ||
| Plain Text | Chang, Kaiyu; Rong, Hui; Cao, Minqiang; Li, Qingchun; Fang, Yangbo; Wu, Ziyang (2026) Multistage uranium mineralization in organic-rich mudstone: A case study of the Qianjiadian uranium deposit in the Songliao Basin, China. Ore Geology Reviews, 191. 107193 doi:10.1016/j.oregeorev.2026.107193 | ||
| In | Link this record to the correct parent record (if possible) | ||
| Abstract/Notes | The Qianjiadian uranium deposit in the southern Songliao Basin provide a nice case to reveal uranium mineralization in organic-rich mudstones. Uranium mineralization occurs in the upper and lower parts of the mudstones which is adjacent to sandstone-hosted ores. The mineralized grey mudstones are primarily characterized by colloform pyrite, illite, kaolinite, ankerite, pitchblende, coffinite, and uranium-bearing heavy minerals, whereas the non-mineralized grey mudstones are distinguished by framboidal pyrite, and siderite. Formation of uranium minerals from early to late is as follows: pitchblende Ⅰ or coffinite Ⅰ → colloform pyrite → pitchblende Ⅱ or coffinite Ⅱ. P2O5 contents of the mineralized grey mudstones are higher than that of the non-mineralized grey mudstones, indicating that phosphorus enrichment is accompanied by the uranium mineralization in organic-rich mudstones. Average ratio of V/(V + Ni) in mineralized grey mudstones is lower than that in non-mineralized grey mudstones, suggesting that the fluids of uranium mineralization in organic-rich mudstones were oxidized. Compared with non-mineralized grey mudstones, REE in mineralized grey mudstones is depleted, indicating that uranium mineralization in organic-rich mudstones may be affected by hydrothermal fluids related to basic dikes. The pitchblende Ⅰ and coffinite Ⅰ were formed in the supergene fluids, and the pitchblende Ⅱ and coffinite Ⅱ occurred in the hydrothermal fluids related to basic dikes. This study reveals that the uranium mineralization in organic-rich mudstone may be related to multi-stage ore-forming fluids. | ||
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