Distribution, occurrence and exploration prospect of associated rare earth elements in Yichang phosphate deposit, Hubei Province

LIU Lin; WANG Dazhao; CHEN Aizhang; CAI Xiongwei

doi:10.12029/gc20221027003

2024 Vol. 51, No. 2

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Article navigation > Geology in China > 2024 > 51(2): 525-546

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LIU Lin, WANG Dazhao, CHEN Aizhang, CAI Xiongwei. 2024. Distribution, occurrence and exploration prospect of associated rare earth elements in Yichang phosphate deposit, Hubei Province[J]. Geology in China, 51(2): 525-546. doi: 10.12029/gc20221027003

Citation:

LIU Lin, WANG Dazhao, CHEN Aizhang, CAI Xiongwei. 2024. Distribution, occurrence and exploration prospect of associated rare earth elements in Yichang phosphate deposit, Hubei Province[J]. Geology in China, 51(2): 525-546. doi: 10.12029/gc20221027003

Distribution, occurrence and exploration prospect of associated rare earth elements in Yichang phosphate deposit, Hubei Province

1.
Central South Institute of Metallurgical Geology, Yichang 443001, Hubei, China
2.
State Key Laboratory of Nuclear Resource and Environment, East China University of Technology, Nanchang 330013, Jiangxi, China

Fund Project: Supported by Hubei Natural Science Foundation (No.2019CFB551).

More Information

Author Bio: LIU Lin, male, born in 1990, assistant researcher, engaged in the study of mineral resources; E-mail: 615787470@qq.com
Corresponding author: WANG Dazhao, male, born in 1991, doctor, assistant researcher, engaged in the study of mineral deposits research; E-mail: wangdazhao@ecut.edu.cn.

Received Date: 27 October 2022

Revised Date: 05 March 2023

Publish Date: 25 March 2024

Abstract

Abstract

This paper is the result of mineral exploration engineering.
Objective
The Yichang phosphate ore in Hubei Province contains associated rare earth elements. Studying their distribution patterns and occurrence states is of significant importance for the recycling and utilization of rare earth elements. Additionally, the comprehensive utilization of associated minerals is expected to become a crucial source for future rare earth ores.
Methods
This study primarily focuses on rare earth−containing phosphate rocks. Based on systematic sampling, analyses including rock and mineral identification, whole−rock geochemical analysis, XRD diffraction analysis, SEM observation, and LA−ICP−MS testing are carried out.
Results
The total rare earth element content (ΣREE+Y) in phosphate rock ranges from 63.5×10⁻⁶ to 271.8×10⁻⁶. There are variations in rare earth element contents among different layers or rock types of phosphate rock.
Conclusions
The content of rare earth elements is notably controlled by rock types, with an increase from dolomite → dolomitic phosphorite → dense massive phosphorite → argillaceous banded phosphorite to mudstone. Trace elements compositions reflect the ancient climate of the Yichang phosphate deposits, characterized mainly by a dry and hot climate, with a slightly warm and humid characteristic in the northwest. Ce anomaly, V/Ni and Y/Ho ratio reflect the oxidation of seawater conditions from the bottom to the top, corresponding to the the Ph₂² to the Ph₁³ phosphogenesis periods. The total rare earth elements content in the Yichang phosphate deposit are relatively low, and mudstone has higher content compared to phosphate rocks, indicating a higher concentration of adsorbed rare earth elements than the isomorphic rare earth elements. The rare earth resources associated with the Yichang phosphate deposit can be comprehensively recovered using appropriate technologies, holding significant importance for the rational utilization of the Yichang phosphate ore resources and economic development.
- phosphate deposit /
- associated rare earth elements /
- distribution law /
- occurrence state /
- development and utilization prospects /
- mineral exploration engineering /
- Yichang /
- Hubei Province

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References

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