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The occurrence and genesis of HREE-rich minerals from the giant Bayan Obo deposit, China

文献类型：期刊论文

作者Zhan, Yun-Xiang1,2; Li, Xiao-Chun1,2; Wu, Bin4; Yang, Kui-Feng1,2; Fan, Hong-Rui1,2; Li, Xian-Hua1,3
刊名ORE GEOLOGY REVIEWS
出版日期2023-06-01
卷号157页码:17
ISSN号0169-1368
关键词Heavy Rare Earth Elements Fergusonite Samarskite Aeschynite Bayan Obo
DOI10.1016/j.oregeorev.2023.105438
英文摘要The carbonatite-related Bayan Obo deposit, China is the largest REE resource in the world. This deposit has long been a major light REE (LREE) producer, with heavy REE (HREE) rarely exploited. In order to better understand the occurrence of HREE in the deposit, this paper conducts a study of HREE-rich minerals at Bayan Obo. Overall, four types of HREE-rich minerals are identified, including fergusonite-group mineral [(Y, REE)(Nb, Ta, Ti)O-4], samarskite-group mineral [(Y, REE, Fe)(2)(Nb, Ta, Ti)(2)O-8], aeschynite-group mineral [(Y, REE, Ca, Th, U)(Nb, Ta, Ti)(2)O-6], and a type of unknown Pb-rich mineral. These minerals have HREE contents varying from 3.4 wt% to 46.4 wt%, mostly between 19.7 wt% and 34.3 wt%. Yttrium, Dy and Gd are the major REE constitute. Textual relations indicate that the HREE-rich minerals were mainly precipitated from carbonatite-related fluids, with small amounts of grains crystallized from the carbonatitic magma or deposited from post-ore modification fluids. The HREE-rich minerals occur in close temporal and/or spatial association with LREE minerals (e.g., monazite and bastna center dot site), so formation of these HREE-minerals does not mean strong LREE-HREE fractionation during the ore-formation or post-ore modification process. Given that certain niobium oxides strongly prefer HREE relative to LREE in the mineral structure, a local physiochemical environment that allowed for the deposition of niobium oxides may be significant for efficient HREE deposition. Although HREE-rich minerals are not widely present in the deposit, they tend to occur as clusters in places. To determine what proportions of HREE can be hosted in the HREE-rich minerals, the weight proportions and REE contents of major REE-bearing minerals were measured in three representative ore samples. The results show that similar to 25-57 % HREE can be hosted in fergusonite, samarskite, and/or aeschynite. Therefore, the newly identified HREE-rich minerals are non-negligible targets for future exploitation of HREE in the Bayan Obo deposit.
WOS关键词RARE-EARTH MINERALIZATION ; REE-NB DEPOSIT ; (Y,REE,U,TH)-(NB,TA,TI) OXIDE MINERALS ; INNER-MONGOLIA ; GRANITIC-PEGMATITE ; CARBONATITE COMPLEX ; SM-ND ; GEOCHRONOLOGY ; CONSTRAINTS ; BELT
资助项目National Natural Science Foundation of China (NSFC)[92262303] ; National Natural Science Foundation of China (NSFC)[41930430] ; National Natural Science Foundation of China (NSFC)[92162323] ; National Key Research and Development Program of China[2021YFC2901704] ; Baotou Steel Group Limited[GZ-2023-1-LH-001] ; Key Research Program of the Innovation Academy for Earth Science, Chinese Academy of Sciences[IGGCAS-201901]
WOS研究方向Geology ; Mineralogy ; Mining & Mineral Processing
语种英语
出版者ELSEVIER
WOS记录号WOS:000989455900001
资助机构National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; Baotou Steel Group Limited ; Baotou Steel Group Limited ; Baotou Steel Group Limited ; Baotou Steel Group Limited ; Key Research Program of the Innovation Academy for Earth Science, Chinese Academy of Sciences ; Key Research Program of the Innovation Academy for Earth Science, Chinese Academy of Sciences ; Key Research Program of the Innovation Academy for Earth Science, Chinese Academy of Sciences ; Key Research Program of the Innovation Academy for Earth Science, Chinese Academy of Sciences ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; Baotou Steel Group Limited ; Baotou Steel Group Limited ; Baotou Steel Group Limited ; Baotou Steel Group Limited ; Key Research Program of the Innovation Academy for Earth Science, Chinese Academy of Sciences ; Key Research Program of the Innovation Academy for Earth Science, Chinese Academy of Sciences ; Key Research Program of the Innovation Academy for Earth Science, Chinese Academy of Sciences ; Key Research Program of the Innovation Academy for Earth Science, Chinese Academy of Sciences ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; Baotou Steel Group Limited ; Baotou Steel Group Limited ; Baotou Steel Group Limited ; Baotou Steel Group Limited ; Key Research Program of the Innovation Academy for Earth Science, Chinese Academy of Sciences ; Key Research Program of the Innovation Academy for Earth Science, Chinese Academy of Sciences ; Key Research Program of the Innovation Academy for Earth Science, Chinese Academy of Sciences ; Key Research Program of the Innovation Academy for Earth Science, Chinese Academy of Sciences ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; Baotou Steel Group Limited ; Baotou Steel Group Limited ; Baotou Steel Group Limited ; Baotou Steel Group Limited ; Key Research Program of the Innovation Academy for Earth Science, Chinese Academy of Sciences ; Key Research Program of the Innovation Academy for Earth Science, Chinese Academy of Sciences ; Key Research Program of the Innovation Academy for Earth Science, Chinese Academy of Sciences ; Key Research Program of the Innovation Academy for Earth Science, Chinese Academy of Sciences
源URL[http://ir.iggcas.ac.cn/handle/132A11/110941]  
专题地质与地球物理研究所_中国科学院矿产资源研究重点实验室
地质与地球物理研究所_岩石圈演化国家重点实验室
通讯作者Li, Xiao-Chun
作者单位1.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing 100049, Peoples R China
2.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Mineral Resources, Beijing 100029, Peoples R China
3.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing 100029, Peoples R China
4.East China Univ Technol, State Key Lab Nucl Resources & Environm, Nanchang 330013, Peoples R China
推荐引用方式
GB/T 7714		 Zhan, Yun-Xiang,Li, Xiao-Chun,Wu, Bin,et al. The occurrence and genesis of HREE-rich minerals from the giant Bayan Obo deposit, China[J]. ORE GEOLOGY REVIEWS,2023,157:17.
APA Zhan, Yun-Xiang,Li, Xiao-Chun,Wu, Bin,Yang, Kui-Feng,Fan, Hong-Rui,&Li, Xian-Hua.(2023).The occurrence and genesis of HREE-rich minerals from the giant Bayan Obo deposit, China.ORE GEOLOGY REVIEWS,157,17.
MLA Zhan, Yun-Xiang,et al."The occurrence and genesis of HREE-rich minerals from the giant Bayan Obo deposit, China".ORE GEOLOGY REVIEWS 157(2023):17.

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来源：地质与地球物理研究所

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