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Age and origin of the H9 member from the Bayan Obo Group: Implications for the genesis of the giant Bayan Obo Fe-Nb-REE deposit, China

文献类型：期刊论文

作者Li, Hong-Tao1,2; Yang, Kui-Feng1,2,3; Gao, Yu-Pu4; Zhao, Jian5; Yuan, Xing-Yu4; Li, Xiao-Chun1,2,3; Fan, Hong-Rui1,2,3
刊名ORE GEOLOGY REVIEWS
出版日期2022-07-01
卷号146页码:22
ISSN号0169-1368
关键词Bayan Obo Group H9 member Fenitization Zircon dating Dolomite
DOI10.1016/j.oregeorev.2022.104927
英文摘要The Bayan Obo deposit hosted in a set of metamorphic sedimentary strata contains the world's largest rare earth reserve. However, the genesis of its ore-bearing dolomites remains controversial. The temporal and spatial relationships and compositions of the surrounding strata could provide indirect genetic indications for ore-bearing dolomites, particularly the overlying H9 member. Our data suggest that the compositions of H9 member are complex, consisting of quartz sandstone, biotite shist, metamorphic volcanic rocks and alkaline rocks. The origin and genesis of different lithologies in the H9 member are different. Based on the age distribution of detrital zircons, the basement rocks from the Bayan Obo region are presumed to be the material sources for the quartz sandstone in the H9 member. The biotite schist is the alteration products of wall rocks reacting with the fluids extracted from the ore-bearing dolomite. Metamorphic volcanic rocks and alkaline rocks are also distinguished in the H9 member. Th-Pb dating of zircons from the H9 volcanic rocks indicates its formation age is around 1.4 Ga, which is earlier than the mineralization age of the ore body, and the H9 member is also affected by the Caledonian tectonic compression recorded by the age of 427 Ma. According to the temporal and spatial distribution of H9 member and ore-bearing dolomites, the dolomites are considered to be magmatic origin. H9 member acts as the caprocks of the ore-bearing dolomite, and the contribution of its material composition and entrapment play an important role in the formation of the Bayan Obo deposit.
WOS关键词ZIRCON U-PB ; RARE-EARTH MINERALIZATION ; TRACE-ELEMENT COMPOSITION ; LARGE IGNEOUS PROVINCES ; INNER-MONGOLIA ; COLUMBIA SUPERCONTINENT ; ORE-DEPOSIT ; TH-PB ; DOLOMITE CARBONATITE ; ISOTOPIC CONSTRAINTS
资助项目National Natural Science Foundation of China[91962103] ; National Natural Science Foundation of China[41930430] ; National Key R&D Program of China[2021YFC2901704] ; Key Research Program of the Innovation Academy for Earth Science, CAS[IGGCAS-201901] ; Zhongke Developing Science and Technology Co., Ltd.[2017H1973] ; Zhongke Developing Science and Technology Co., Ltd.[ZK2018H003]
WOS研究方向Geology ; Mineralogy ; Mining & Mineral Processing
语种英语
出版者ELSEVIER
WOS记录号WOS:000806795800002
资助机构National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; Key Research Program of the Innovation Academy for Earth Science, CAS ; Key Research Program of the Innovation Academy for Earth Science, CAS ; Key Research Program of the Innovation Academy for Earth Science, CAS ; Key Research Program of the Innovation Academy for Earth Science, CAS ; Zhongke Developing Science and Technology Co., Ltd. ; Zhongke Developing Science and Technology Co., Ltd. ; Zhongke Developing Science and Technology Co., Ltd. ; Zhongke Developing Science and Technology Co., Ltd. ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; Key Research Program of the Innovation Academy for Earth Science, CAS ; Key Research Program of the Innovation Academy for Earth Science, CAS ; Key Research Program of the Innovation Academy for Earth Science, CAS ; Key Research Program of the Innovation Academy for Earth Science, CAS ; Zhongke Developing Science and Technology Co., Ltd. ; Zhongke Developing Science and Technology Co., Ltd. ; Zhongke Developing Science and Technology Co., Ltd. ; Zhongke Developing Science and Technology Co., Ltd. ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; Key Research Program of the Innovation Academy for Earth Science, CAS ; Key Research Program of the Innovation Academy for Earth Science, CAS ; Key Research Program of the Innovation Academy for Earth Science, CAS ; Key Research Program of the Innovation Academy for Earth Science, CAS ; Zhongke Developing Science and Technology Co., Ltd. ; Zhongke Developing Science and Technology Co., Ltd. ; Zhongke Developing Science and Technology Co., Ltd. ; Zhongke Developing Science and Technology Co., Ltd. ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; Key Research Program of the Innovation Academy for Earth Science, CAS ; Key Research Program of the Innovation Academy for Earth Science, CAS ; Key Research Program of the Innovation Academy for Earth Science, CAS ; Key Research Program of the Innovation Academy for Earth Science, CAS ; Zhongke Developing Science and Technology Co., Ltd. ; Zhongke Developing Science and Technology Co., Ltd. ; Zhongke Developing Science and Technology Co., Ltd. ; Zhongke Developing Science and Technology Co., Ltd.
源URL[http://ir.iggcas.ac.cn/handle/132A11/106048]  
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
通讯作者Yang, Kui-Feng
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 Earth Sci, Beijing 100029, Peoples R China
4.Baotou Iron & Steel Co, Bayan Obo Iron Mine, Baotou 014080, Peoples R China
5.Inner Mongolia Baotou Steel Union Co Ltd, Barun Min Co, Baotou 014080, Peoples R China
推荐引用方式
GB/T 7714		 Li, Hong-Tao,Yang, Kui-Feng,Gao, Yu-Pu,et al. Age and origin of the H9 member from the Bayan Obo Group: Implications for the genesis of the giant Bayan Obo Fe-Nb-REE deposit, China[J]. ORE GEOLOGY REVIEWS,2022,146:22.
APA Li, Hong-Tao.,Yang, Kui-Feng.,Gao, Yu-Pu.,Zhao, Jian.,Yuan, Xing-Yu.,...&Fan, Hong-Rui.(2022).Age and origin of the H9 member from the Bayan Obo Group: Implications for the genesis of the giant Bayan Obo Fe-Nb-REE deposit, China.ORE GEOLOGY REVIEWS,146,22.
MLA Li, Hong-Tao,et al."Age and origin of the H9 member from the Bayan Obo Group: Implications for the genesis of the giant Bayan Obo Fe-Nb-REE deposit, China".ORE GEOLOGY REVIEWS 146(2022):22.

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来源：地质与地球物理研究所

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