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Cenozoic structural evolution of the eastern Qaidam basin and its control on the formation of sandstone-type uranium deposits
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Baojun ZHOU1, 2, 3, Yuqi CAI1, 2, 3, Ziying LI1, 2, 3, Feng HE1, 2, 3, Cheng CHEN4, 5, Mingming TIAN1, 2, 3, Xingqi ZHAO1, 2, 3, Xide LI1, 2, 3, Menghua LI1, 2, 3, Xiliang ZHANG1, 2, 3, Jie WANG1, 2, 3
World Nuclear Geoscience | 2025, 42(2) : 230 - 245
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World Nuclear Geoscience | 2025, 42(2): 230-245
• RESEARCH ARTICALS •
Cenozoic structural evolution of the eastern Qaidam basin and its control on the formation of sandstone-type uranium deposits
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Baojun ZHOU1, 2, 3, Yuqi CAI1, 2, 3, Ziying LI1, 2, 3, Feng HE1, 2, 3, Cheng CHEN4, 5, Mingming TIAN1, 2, 3, Xingqi ZHAO1, 2, 3, Xide LI1, 2, 3, Menghua LI1, 2, 3, Xiliang ZHANG1, 2, 3, Jie WANG1, 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 Key Laboratory of Petroleum Geomechanics， China Geological Survey， Beijing 100081， China
  • 5 Institute of Geomechanics， Chinese Academy of Geological Sciences， Beijing 100081， China
Published: 2025-04-08 doi: 10.3969/j.issn.1672-0636.2025.02.002
Outline
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Qaidam basin，located at the northeastern margin of the Qinghai-Tibet Plateau，is one of China’s major large-scale oil- and gas-bearing basins. The results of uranium exploration in recent years show that it has good prospects of uranium mineralization. However，compared to the western Qaidam basin，research on the fundamental geology and uranium exploration in the eastern Qaidam basin remains relatively underdeveloped. Based on systematic summary of low-temperature thermochronological data，provenance and growth strata characteristics，the Cenozoic tectonic evolution history of the east Qaidam area was reviewed. We investigated the control of Cenozoic structural evolution on uranium mineralization in the eastern Qaidam，through comprehensive analysis of typical uranium occurrences surface (field observations) and near-surface (seismic profiles) data. The results indicated that fault systems exert primary control over uranium mineralization，with uranium occurrences predominantly distributed within the flank of gentle anticlinal near the thrust faults，and the Olongbulak North Fault and its secondary faults may work as the principal ore-controlling faults. The uranium mineralization in the east Qaidam occurs predominantly by exudative uranium metallogeny，with Carboniferous hydrocarbon source rocks potentially serving as significant provider of abundant uranium for the mineralization processes. The fault systems within the basin provide effective channels and driving force for the upward migration of deep uranium-rich reduction fluid，and the regional intense compression and hydrocarbon generation control the spatial position of uranium mineralization. The findings in this paper are meaningful for the following uranium exploration work in the east Qaidam basin.

eastern Qaidam basin  /  sandstone-type uranium deposit  /  structural evolution  /  exudative uranium metallogeny  /  hydrodynamic
Baojun ZHOU, Yuqi CAI, Ziying LI, Feng HE, Cheng CHEN, Mingming TIAN, Xingqi ZHAO, Xide LI, Menghua LI, Xiliang ZHANG, Jie WANG. Cenozoic structural evolution of the eastern Qaidam basin and its control on the formation of sandstone-type uranium deposits[J]. World Nuclear Geoscience, 2025 , 42 (2) : 230 -245 . DOI: 10.3969/j.issn.1672-0636.2025.02.002
Funding
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  • Nuclear Technology R&D program “Study on efficient prediction technology and application of sandstone-type uranium resources in Qaidam basin”(地H2301-1)
  • uranium investigation and evaluation project of China Nuclear Geology“Investigation and prospective evaluation of uranium metallogenic environment in the central fault-uplift of the Qaidam basin”(202419-5)
Appendix
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Year 2025 volume 42 Issue 2
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Article Info
doi: 10.3969/j.issn.1672-0636.2025.02.002
  • Receive Date：2025-03-23
  • Online Date：2025-10-29
  • Published：2025-04-08
Article Data
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History
  • Received：2025-03-23
  • Revised：2025-04-01
Funding
Nuclear Technology R&D program “Study on efficient prediction technology and application of sandstone-type uranium resources in Qaidam basin”(地H2301-1)
uranium investigation and evaluation project of China Nuclear Geology“Investigation and prospective evaluation of uranium metallogenic environment in the central fault-uplift of the Qaidam basin”(202419-5)
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 Key Laboratory of Petroleum Geomechanics， China Geological Survey， Beijing 100081， China
    5 Institute of Geomechanics， Chinese Academy of Geological Sciences， Beijing 100081， China
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https://castjournals.cast.org.cn/joweb/hdzkx/EN/10.3969/j.issn.1672-0636.2025.02.002
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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
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Genus		 种数
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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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