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THE CHEMICAL COMPOSITION OF HELVINE-GROUP MINERALS AND IMPLICATIONS FOR ORE GENESIS: CASE STUDIES FROM THE DAWAN, QIDUSHAN, AND TAOXIKENG DEPOSITS

文献类型：期刊论文

作者Zhu, Yiting1; Li, Xiaofeng3; Wei, Xinglin2
刊名CANADIAN JOURNAL OF MINERALOGY AND PETROLOGY
出版日期2023-05-01
卷号61期号:3页码:569-592
关键词helvine-group minerals cassiterite U-Pb age zircon U-Pb LA-ICP-MS chemical composition trace elements concentration ore genesis beryllium deposits southeastern China
DOI10.3749/2200067
英文摘要Helvine-group minerals have characteristic chemical compositions and textures and occur in different environments within magmatic-hydrothermal deposits. However, their origin is still unclear. There are several quartz-vein beryllium deposits with different element assemblages existing in southeastern China; these include the Dawan Be-Mo, Qidushan Be-Zn-Sn, and Taoxikeng Be-W deposits. We present the chemical composition of helvine-group minerals analyzed by electron probe microanalysis and laser ablation inductively coupled plasma mass spectrometry, in addition to zircon sensitive high-massresolution ion microprobe U-Pb and cassiterite laser ablation inductively coupled plasma mass spectrometry U-Pb ages. The zircon and cassiterite U-Pb data indicate that the Qidushan deposit formed during the Late Cretaceous (127-132 Ma). The electron probe microanalysis data show that the helvine-group minerals from the three deposits are helvine and/or danalite. A wide variety of different trace elements display high concentrations in the different deposits [e.g., helvine-group minerals from the Dawan deposit are rich in Li, B, Sc, V, Ga, Y, Sn, Cs, Th, and U; those from the Qidushan deposit are rich in Sc, Cd, and Sn; whereas those from the Taoxikeng deposit are rich in Y, Cd, Sn, Ta, and total rare-earth elements (Sigma REE). The material analyzed from the Dawan deposit has the highest concentrations of Li (28.03-134.96 ppm), Sn (126.01-709.24 ppm), Sc (108.10-287.64 ppm), Cs (0-37.24 ppm), Th (4.78-112.63 ppm), and U (0.79-4.13 ppm). The material analyzed from the Taoxikeng deposit has the highest concentrations of Y (594.95-899.95 ppm), Cd (22.63-25.21 ppm), Ta (0.41-0.86 ppm), and RREE (281.69-451.79 ppm). However, those from the Qidushan deposit have the lowest concentrations of Y (10.21-37.70 ppm), Sn (0-26.88 ppm), U (0-19.06 ppm), Eu (0-0.14 ppm), and Cs (being below the detection limit). All of them are rich in heavy REEs but poor in light REEs, with distinctive REE patterns. Our results reveal that both crystallographic substitution and fluid composition control the enrichment of trace elements in helvine-group minerals. The textures and trace element compositions of helvine-group minerals can represent various parageneses and ore-forming fluid compositions. We propose that the dEu values and (La/Yb) N ratios can be used as markers to discriminate the genesis of helvine-group mineral precipitated from different environments based on the chemical compositions and the origin of ore-forming fluids.
WOS关键词GENTHELVITE ; DANALITE ; ZIRCON ; CHALCOPHILICITY ; GEOCHEMISTRY ; STABILITY ; ELEMENTS ; ISOTOPE ; GARNET ; PB
资助项目National Natural Science Foundation of China[41972087] ; Key Research Program of the Institute of Geology and Geophysics, Chinese Academy of Sciences[IGGCAS-202205]
WOS研究方向Mineralogy
语种英语
WOS记录号WOS:001068615500007
出版者MINERALOGICAL ASSOC CANADA
资助机构National Natural Science Foundation of China ; National Natural Science Foundation of China ; Key Research Program of the Institute of Geology and Geophysics, Chinese Academy of Sciences ; Key Research Program of the Institute of Geology and Geophysics, Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Key Research Program of the Institute of Geology and Geophysics, Chinese Academy of Sciences ; Key Research Program of the Institute of Geology and Geophysics, Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Key Research Program of the Institute of Geology and Geophysics, Chinese Academy of Sciences ; Key Research Program of the Institute of Geology and Geophysics, Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Key Research Program of the Institute of Geology and Geophysics, Chinese Academy of Sciences ; Key Research Program of the Institute of Geology and Geophysics, Chinese Academy of Sciences
源URL[http://ir.iggcas.ac.cn/handle/132A11/110766]  
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Li, Xiaofeng
作者单位1.Chinese Acad Sci, Key Lab Mineral Resources, Inst Geol & Geophys, 19 Beitucheng Western Rd, Beijing 100029, Peoples R China
2.Bur Geol Jiangxi Prov, 888 Tea Garden St, Nanchang 330046, Peoples R China
3.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, 1 Yanqihu East Rd, Beijing 100049, Peoples R China
推荐引用方式
GB/T 7714		 Zhu, Yiting,Li, Xiaofeng,Wei, Xinglin. THE CHEMICAL COMPOSITION OF HELVINE-GROUP MINERALS AND IMPLICATIONS FOR ORE GENESIS: CASE STUDIES FROM THE DAWAN, QIDUSHAN, AND TAOXIKENG DEPOSITS[J]. CANADIAN JOURNAL OF MINERALOGY AND PETROLOGY,2023,61(3):569-592.
APA Zhu, Yiting,Li, Xiaofeng,&Wei, Xinglin.(2023).THE CHEMICAL COMPOSITION OF HELVINE-GROUP MINERALS AND IMPLICATIONS FOR ORE GENESIS: CASE STUDIES FROM THE DAWAN, QIDUSHAN, AND TAOXIKENG DEPOSITS.CANADIAN JOURNAL OF MINERALOGY AND PETROLOGY,61(3),569-592.
MLA Zhu, Yiting,et al."THE CHEMICAL COMPOSITION OF HELVINE-GROUP MINERALS AND IMPLICATIONS FOR ORE GENESIS: CASE STUDIES FROM THE DAWAN, QIDUSHAN, AND TAOXIKENG DEPOSITS".CANADIAN JOURNAL OF MINERALOGY AND PETROLOGY 61.3(2023):569-592.

入库方式： OAI收割

来源：地质与地球物理研究所

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