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The sedimentary characteristics and facies model of the Neogene in the Delingha depression，eastern Qaidam basin
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ZHONG Ling1, 2, 3, HE Feng1, 2, 3, ZHAO Xingqi1, 2, 3, LI Xide1, 2, 3, CAI Yuqi1, 2, 3, TIAN Mingming1, 2, 3, WANG Jie1, 2, 3
World Nuclear Geoscience | 2025, 42(1) : 13 - 28
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World Nuclear Geoscience | 2025, 42(1): 13-28
• RESEARCH ARTICALS •
The sedimentary characteristics and facies model of the Neogene in the Delingha depression，eastern Qaidam basin
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ZHONG Ling1, 2, 3, HE Feng1, 2, 3, ZHAO Xingqi1, 2, 3, LI Xide1, 2, 3, CAI Yuqi1, 2, 3, TIAN Mingming1, 2, 3, WANG Jie1, 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 Resources Exploration and Evaluation Technology, Beijing 100029, China
Published: 2025-02-08 doi: 10.3969/j.issn.1672-0636.2025.01.002
Outline
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Delingha depression in the eastern Qaidam basin is believed a potential area for sandstone type uranium deposit in the target stata of the Neogene Shizigou formation and the Shangyoushashan formation. The in-depth investigation on the sedimentary facies characteristics and evolution of strata will provide valuable guidance for uranium exploration. Detailed observations of lithofacies assemblages and sedimentary formation in field outcrops，drilling cores, and well logging analyses have identified that the alluvial fan-braided river delta-lake are the dominant sedimentary facies type in the study area. Among these，the distributary channels in the braided river delta plain and subaqueous distributary channels in the braided river delta front are well-developed with significant scale and good connectivity，providing a favorable sedimentary environment for uranium enrichment. This new understanding has contributed to the knowledge of the spatial and temporal distribution of sand bodies in the Shizigou formation and the Shangyoushashan formations in the eastern Qaidam basin，and provided key information in guiding the future prospecting and exploration.

Qaidam basin  /  sedimentary facies  /  sedimentary characteristics  /  Neogene  /  sandstone-type uranium deposit
ZHONG Ling, HE Feng, ZHAO Xingqi, LI Xide, CAI Yuqi, TIAN Mingming, WANG Jie. The sedimentary characteristics and facies model of the Neogene in the Delingha depression，eastern Qaidam basin[J]. World Nuclear Geoscience, 2025 , 42 (1) : 13 -28 . DOI: 10.3969/j.issn.1672-0636.2025.01.002
Funding
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  • high-efficiency prediction technology and application of sandstone uranium resources in Qaidam basin(地H2301-1)
  • metallogenic environment investigation and prospective for uranium deposit in the central fault uplift zone of the Qaidam basin(202419-5)
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Year 2025 volume 42 Issue 1
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Article Info
doi: 10.3969/j.issn.1672-0636.2025.01.002
  • Receive Date：2024-12-03
  • Online Date：2025-11-07
  • Published：2025-02-08
Article Data
Affiliations
History
  • Received：2024-12-03
  • Revised：2024-12-26
Funding
high-efficiency prediction technology and application of sandstone uranium resources in Qaidam basin(地H2301-1)
metallogenic environment investigation and prospective for uranium deposit in the central fault uplift zone 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 Resources Exploration and Evaluation Technology, Beijing 100029, China

Corresponding:

HE Feng，male，born in 1984，senior engineer，PhD，focusing on geological research and prospecting of sandstone type uranium deposits. E-mail：
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Citations
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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