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Genesis of the world's largest rare earth element deposit, Bayan Obo, China: Protracted mineralization evolution over similar to 1 b.y.

文献类型：期刊论文

作者Song, Wenlei1; Xu, Cheng1; Smith, Martin P.2; Chakhmouradian, Anton R.3; Brenna, Marco4; Kynicky, Jindrich5; Chen, Wei6; Yang, Yueheng7; Deng, Miao1; Tang, Haiyan8
刊名GEOLOGY
出版日期2018-04-01
卷号46期号:4页码:323-326
ISSN号0091-7613
DOI10.1130/G39801.1
文献子类Article
英文摘要The unique, giant, rare earth element (REE) deposit at Bayan Obo, northern China, is the world's largest REE deposit. It is geologically complex, and its genesis is still debated. Here, we report in situ Th-Pb dating and Nd isotope ratios for monazite and Sr isotope ratios for dolomite and apatite from fresh drill cores. The measured monazite ages (361-913 Ma) and previously reported whole-rock Sm-Nd data show a linear relationship with the initial Nd isotope ratio, suggesting a single-stage evolution from a Sm-Nd source that was formed before 913 Ma. All monazites show consistent epsilon(Nd(1.3Ga)) values (0.3 +/- 0.6) close to those of the adjacent 1.3 Ga carbonatite and mafic dikes. The primary dolomite and apatite show lower Sr-87/Sr-86 ratios (0.7024-0.7030) than the recrystallized dolomite (0.7038-0.7097). The REE ores at Bayan Obo are interpreted to have originally formed as products of ca. 1.3 Ga carbonatitic magmatism and to have undergone subsequent thermal perturbations induced by Sr-rich, but REE-poor, metamorphic fluids derived from nearby sedimentary rocks.
WOS关键词INNER-MONGOLIA ; SUBDUCTION ; CRATON
WOS研究方向Geology
语种英语
WOS记录号WOS:000428011100011
出版者GEOLOGICAL SOC AMER, INC
资助机构Chinese National Natural Science Foundation(41573033 ; Chinese National Natural Science Foundation(41573033 ; 41688103 ; 41688103 ; 41773022) ; 41773022) ; Chinese National Natural Science Foundation(41573033 ; Chinese National Natural Science Foundation(41573033 ; 41688103 ; 41688103 ; 41773022) ; 41773022) ; Chinese National Natural Science Foundation(41573033 ; Chinese National Natural Science Foundation(41573033 ; 41688103 ; 41688103 ; 41773022) ; 41773022) ; Chinese National Natural Science Foundation(41573033 ; Chinese National Natural Science Foundation(41573033 ; 41688103 ; 41688103 ; 41773022) ; 41773022)
源URL[http://ir.iggcas.ac.cn/handle/132A11/82970]  
专题中国科学院地质与地球物理研究所
通讯作者Xu, Cheng
作者单位1.Peking Univ, Sch Earth & Space Sci, Key Lab Orogen Belts & Crustal Evolut, Beijing 100871, Peoples R China
2.Univ Brighton, Sch Environm & Technol, Brighton BN2 4GJ, E Sussex, England
3.Univ Manitoba, Dept Geol Sci, Winnipeg, MB R3T 2N2, Canada
4.Univ Otago, Dept Geol, Dunedin 9054, New Zealand
5.Mendel Univ Brno, Dept Geol & Pedol, Brno 361300, Czech Republic
6.China Univ Geosci, State Key Lab Geol Proc & Mineral Resources, Wuhan 430074, Hubei, Peoples R China
7.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China
8.Jilin Univ, Coll Earth Sci, Changchun 130012, Jilin, Peoples R China
推荐引用方式
GB/T 7714		 Song, Wenlei,Xu, Cheng,Smith, Martin P.,et al. Genesis of the world's largest rare earth element deposit, Bayan Obo, China: Protracted mineralization evolution over similar to 1 b.y.[J]. GEOLOGY,2018,46(4):323-326.
APA Song, Wenlei.,Xu, Cheng.,Smith, Martin P..,Chakhmouradian, Anton R..,Brenna, Marco.,...&Tang, Haiyan.(2018).Genesis of the world's largest rare earth element deposit, Bayan Obo, China: Protracted mineralization evolution over similar to 1 b.y..GEOLOGY,46(4),323-326.
MLA Song, Wenlei,et al."Genesis of the world's largest rare earth element deposit, Bayan Obo, China: Protracted mineralization evolution over similar to 1 b.y.".GEOLOGY 46.4(2018):323-326.

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来源：地质与地球物理研究所

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