甘肃省龙首山芨岭钠交代型铀矿床地质特征与成因

赵如意; 陈毓川; 陈云杰; 王刚; 聂利; 荣骁; 李涛

doi:10.3799/dqkx.2018.287

Volume 45 Issue 1

Jan. 2020

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Zhao Ruyi, Chen Yuchuan, Chen Yunjie, Wang Gang, Nie Li, Rong Xiao, Li Tao, 2020. Geological Characteristics and Its Genesis of the Jiling Na-Metasomatic Uranium Deposit in Longshou Mountains, Gansu Province. Earth Science, 45(1): 90-107. doi: 10.3799/dqkx.2018.287

Citation:

Zhao Ruyi, Chen Yuchuan, Chen Yunjie, Wang Gang, Nie Li, Rong Xiao, Li Tao, 2020. Geological Characteristics and Its Genesis of the Jiling Na-Metasomatic Uranium Deposit in Longshou Mountains, Gansu Province. Earth Science, 45(1): 90-107. doi: 10.3799/dqkx.2018.287

Citation:

Zhao Ruyi, Chen Yuchuan, Chen Yunjie, Wang Gang, Nie Li, Rong Xiao, Li Tao, 2020. Geological Characteristics and Its Genesis of the Jiling Na-Metasomatic Uranium Deposit in Longshou Mountains, Gansu Province. Earth Science, 45(1): 90-107. doi: 10.3799/dqkx.2018.287

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Geological Characteristics and Its Genesis of the Jiling Na-Metasomatic Uranium Deposit in Longshou Mountains, Gansu Province

doi: 10.3799/dqkx.2018.287

1.
State Key Laboratory of Nuclear Resources and Environment, East China University of Technology, Nanchang 330013, China
2.
Key Laboratory of Metallogeny and Mineral Resource Assessment, Ministry of Natural Resources, Chinese Academy of Geological Sciences, Beijing 100037, China
3.
The No. 203 Research Institute of Nuclear Industry, Xianyang 712000, China

Received Date: 2018-08-13
Publish Date: 2020-01-15

Abstract

Abstract

The Jiling Na-metasomatic uranium deposit is one of the most important uranium deposits in NW China. Based on the deposit geological characteristics, we studied the inclusions in calcite, chlorite thermometer, isotope and geochemical characteristics in this paper. We considered that the Jiling uranium deposit was formed under post-collision background in the Early Paleozoic, which has experienced 5 stages, and includes 6 alteration zones from ore center to the edge of Na-metasomatic body. The ore bearing hydrothermal is rebalance water, which is generated from evolutive magma, reacted with wall rocks; its temperature is about 295℃, salinity is 2.99%-4.57% NaCl_eqv and density is 0.75-0.77 g/cm³.The hydrothermal fluid is rich in U⁶⁺, Na⁺, CO₃^2-, and has strong dissolution ability to SiO₂, Fe²⁺, Mn²⁺, K⁺, Rb, Sr, Mo, Ga, Zr and Ba. Fluid boiling is main mechanism of ore deposition, and the changing of pH and Eh has promoted material deposition at the same time.
- Jiling,
- Na-metasomatic uranium deposit,
- geochemistry,
- component migration,
- hydrothermal source,
- ore forming mechanism

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References(58)

References

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Geological Characteristics and Its Genesis of the Jiling Na-Metasomatic Uranium Deposit in Longshou Mountains, Gansu Province

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