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Molybdenite Re-Os and Zircon U-Pb Chronology of Tanshuling Molybdenum Deposits from Jingxian County, Southern Anhui Province and Its Geological Significance
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Jiu-qing MU1, 2, 3, An-dong WANG1, 2, *, Fang-yue WANG4, Yun WANG1, 2
Science Technology and Engineering | 2025, 25(9) : 3555 - 3572
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Science Technology and Engineering | 2025, 25(9): 3555-3572
• Papers·Astronomy and Geosciences •
Molybdenite Re-Os and Zircon U-Pb Chronology of Tanshuling Molybdenum Deposits from Jingxian County, Southern Anhui Province and Its Geological Significance
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Jiu-qing MU1, 2, 3, An-dong WANG1, 2, *, Fang-yue WANG4, Yun WANG1, 2
Affiliations
  • 1 State Key Laboratory of Nuclear Resources and Environment, East China University of Technology, Nanchang 330013, China
  • 2 School of Earth Sciences, East China University of Technology, Nanchang 330013, China
  • 3 The Fifth Geological Brigade of Hebei Bureau of Geology and Mineral Resources, Tangshan 063006, China
  • 4 School of Resource and Environmental Engineering, Hefei University of Technology, Hefei 230009, China
Published: 2025-03-28 doi: 10.12404/j.issn.1671-1815.2403118
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The Tanshuling molybdenum deposit is located in the Jiangnan Uplift zone along south part of the Jiangnan Fault. Its main lithology type is granodiorite. With the aim to constrain their magma and ore-forming ages and deposit genesis, combined zircon U-Pb and molybdenite Re-Os geochronology together with whole-rock major and trace element geochemistry have been carried out. The result suggest that the content of SiO2 is 64.5%~66.8%, Al2O3 is 14.4%~16.0%, K2O is 3.92%~4.86%, Na2O is 2.90%~3.91%, CaO is 1.56%~2.8%, MgO is 1.24%~1.53%, A/CNK value of 1.02~1.10, and A/NK value of 1.37~1.59. The characteristics of major elements show that the granites belong to metaaluminium to weak peraluminous high potassium calc-alkaline pot-assium series with I-type granite nature. The chondrite-normalized REE patterns are evidently right-declined, with relatively LREE enrichment and slight Eu negative anomalies. The molybdenite Re-Os age of the Tanshuling molybdenite is (133.09±0.86) Ma, and the U-Pb dating of the Maolin granodiorite is (140.4±0.62) Ma, (139.9±0.66) Ma, (139.6±0.63) Ma, all belong to the Early Cretaceous. Integrated chronological and geochemical characteristics show that the main magmatic activity of the Tanshuling molybdenum deposit belong to the Pacific tectonic system, and the alternation of extrusion and extensional has led to large-scale magmatic and mineralization in this area.

Jiangnan Uplift belt  /  I-type granite  /  geochemistry  /  Re-Os dating  /  U-Pb dating
Jiu-qing MU, An-dong WANG, Fang-yue WANG, Yun WANG. Molybdenite Re-Os and Zircon U-Pb Chronology of Tanshuling Molybdenum Deposits from Jingxian County, Southern Anhui Province and Its Geological Significance[J]. Science Technology and Engineering, 2025 , 25 (9) : 3555 -3572 . DOI: 10.12404/j.issn.1671-1815.2403118
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Year 2025 volume 25 Issue 9
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Article Info
doi: 10.12404/j.issn.1671-1815.2403118
  • Receive Date：2024-04-26
  • Online Date：2025-07-09
  • Published：2025-03-28
Article Data
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  • Received：2024-04-26
  • Revised：2024-12-19
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Affiliations
    1 State Key Laboratory of Nuclear Resources and Environment, East China University of Technology, Nanchang 330013, China
    2 School of Earth Sciences, East China University of Technology, Nanchang 330013, China
    3 The Fifth Geological Brigade of Hebei Bureau of Geology and Mineral Resources, Tangshan 063006, China
    4 School of Resource and Environmental Engineering, Hefei University of Technology, Hefei 230009, China
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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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