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Petrology，mineralogy，geochemistry and genesis discussion of phosphorus-rich uranium ores in the Tamusu uranium deposit，Yin’e basin
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Weitao LI1, 2, 3, Yu ZHANG4, Wusheng LIU1, 2, 3, Licheng JIA1, 2, 3, Tianyu LI5, Zhe YANG1, 2, 3
World Nuclear Geoscience | 2025, 42(2) : 246 - 262
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World Nuclear Geoscience | 2025, 42(2): 246-262
• RESEARCH ARTICALS •
Petrology，mineralogy，geochemistry and genesis discussion of phosphorus-rich uranium ores in the Tamusu uranium deposit，Yin’e basin
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Weitao LI1, 2, 3, Yu ZHANG4, Wusheng LIU1, 2, 3, Licheng JIA1, 2, 3, Tianyu LI5, Zhe YANG1, 2, 3
Affiliations
  • 1 National Key Laboratory of Uranium Resources Exploration-Mining and Nuclear Remote Sensing， Beijing 100029， China
  • 2 Beijing Research Institute of Uranium Geology， Beijing 100029， China
  • 3 CNNC Key Laboratory of Uranium Resource Prospection and Evaluation Technology， Beijing 100029， China
  • 4 Qinhuangdao Tianyuan 515 Drilling Engineering Co., Ltd.， Qinhuangdao 066013， China
  • 5 Geological Party No. 208， CNNC， Baotou 014010， China
Published: 2025-04-08 doi: 10.3969/j.issn.1672-0636.2025.02.003
Outline
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This study focuses on the rare uranium mineralization phenomenon discovered in the Tamsu uranium deposit of Yin’e basin that part of uranium ores contain a large amount of apatite. The lithology，mineralogy，and geochemistry of these uranium ores were studied in detail by microscope，SEM，EMPA，XRD and analysis of major and trace elements，strontium isotope and bulk rock U-Pb isotope，its genesis was also discussed. The rock types associated with phosphorus-rich uranium ores include purplish-red dolomitic phosphorite，grayish-white dolomitic phosphorite，phosphorus-bearing siltstone，medium phosphatic sandstone，and brecciated limestone. The whole rock P2O5 content of the samples ranges from 0.42 % to 27.74 %. The primary phosphorus-containing mineral is apatite which occurs as microcrystalline apatite (about 0.5 μm) aggregate and accounts for up to 70 % of the whole rock. These apatite were identified as carbonate-fluorapatite. Uranium content varies from 221×10-6 to 3 486×10-6 and show a significant positive correlation with P2O5 content，the rock’s water bursting breccia structure，REE patterns, and lower Sr isotope values indicated the participation of hydrothermal deposition during apatite formation. Whole rock U-Pb isochron age of purplish-red phosphorite is 54±5.2 Ma，implying that the phosphorite suffered the alteration by the interlayer oxidation derived from the Zongnaishan uplift event around 60 Ma. In summary, the formation of phosphorus-rich uranium ores in the Tamsu area was the product of multiple geological processes including hydrothermal deposition and interlayer oxidation

Tamusu uranium deposit  /  phosphorite  /  uranium mineralization  /  apatite  /  hydrothermal deposition
Weitao LI, Yu ZHANG, Wusheng LIU, Licheng JIA, Tianyu LI, Zhe YANG. Petrology，mineralogy，geochemistry and genesis discussion of phosphorus-rich uranium ores in the Tamusu uranium deposit，Yin’e basin[J]. World Nuclear Geoscience, 2025 , 42 (2) : 246 -262 . DOI: 10.3969/j.issn.1672-0636.2025.02.003
Funding
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  • Nuclear Technology R&D Program(地H2401)
Appendix
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Year 2025 volume 42 Issue 2
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Article Info
doi: 10.3969/j.issn.1672-0636.2025.02.003
  • Receive Date：2025-02-27
  • Online Date：2025-10-29
  • Published：2025-04-08
Article Data
Affiliations
History
  • Received：2025-02-27
  • Revised：2025-03-30
Funding
Nuclear Technology R&D Program(地H2401)
Affiliations
    1 National Key Laboratory of Uranium Resources Exploration-Mining and Nuclear Remote Sensing， Beijing 100029， China
    2 Beijing Research Institute of Uranium Geology， Beijing 100029， China
    3 CNNC Key Laboratory of Uranium Resource Prospection and Evaluation Technology， Beijing 100029， China
    4 Qinhuangdao Tianyuan 515 Drilling Engineering Co., Ltd.， Qinhuangdao 066013， China
    5 Geological Party No. 208， CNNC， Baotou 014010， China
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https://castjournals.cast.org.cn/joweb/hdzkx/EN/10.3969/j.issn.1672-0636.2025.02.003
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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