A Combined EMPA and LA-ICP-MS Study of Muscovite from Pegmatites in the Chinese Altai, NW China: Implications for Tracing Rare-Element Mineralization Type and Ore-Forming Process
文献类型：期刊论文
| 作者 | Zhou, Qifeng1; Qin, Kezhang2,3,4; Tang, Dongmei2,3; Wang, Chunlong5 |
| 刊名 | MINERALS
 |
| 出版日期 | 2022-03-01 |
| 卷号 | 12期号:3页码:23 |
| 关键词 | muscovite pegmatite LA-ICP-MS degree of evolution rare-element mineralization Altai |
| DOI | 10.3390/min12030377 |
| 英文摘要 | The mineralogical studies of rare-element (REL) pegmatites are important for unraveling the ore-forming process and evaluating REL mineralization potential. The Chinese Altai orogenic belt hosting more than 100,000 pegmatite dykes is famous for rare-metal resources worldwide and diverse REL mineralization types. In this paper, we present the results of EMPA and LA-ICP-MS for muscovite from the typical REL pegmatite dykes of the Chinese Altai. The studied pegmatites are Li-Be-Nb-Ta, Li-Nb-Ta, Nb-Ta, Be-Nb-Ta, Be and barren pegmatites. The Li+ accompanied with Fe, Mg and Mn substitute for Al3+ at the octahedral site in muscovite from the REL pegmatites, and the substitution of Rb by Cs at the interlayer space is identified in muscovite from the Be pegmatites. The P and B contents increase with evolution degree and the lenses from the Nb-Ta pegmatite are produced at late fluid-rich stage with high fluxes (P and B). The enrichment of HFSE in muscovite indicates a Nb-Ta-Sn-W rich pegmatite magma for the Be-Nb-Ta pegmatite. From barren pegmatite, beryl-bearing zone, to spodumene-bearing zone, the evolution degrees of pegmatite-forming magmas progressively increase. In the Chinese Altai, the possible indicators of muscovite for REL mineralization types include Rb (ca. 400-600 ppm, barren pegmatite; ca. 1200-4000 ppm, Be pegmatite; >4500 ppm, Li pegmatite), Cs (ca. 5-50 ppm, barren pegmatite; ca. 100-500 ppm, Be pegmatite; >300 ppm, Li pegmatite) and Ge (<3 ppm, barren pegmatite; ca. 4-6 ppm, Be pegmatite; ca. 6-12 ppm, Li pegmatite) coupled with Ta, Be (both <10 ppm, barren pegmatite) and FeO (ca. 3-4 wt%, Be pegmatite; ca. 1-2.5 wt%, Li pegmatite). The plots of Nb/Ta vs. Cs and K/Rb vs. Ge are proposed to discriminate barren, Be- and Nb-Ta-(Li-Be-Rb-Cs) pegmatites. The Li, Be, Rb, Cs and F concentrations of forming liquid are evaluated based on the trace element compositions of muscovite. The high Rb and Cs contents of liquid and lower Be contents than beryl saturation value indicate that both highly evolved pegmatite magma and low temperature at emplacement contribute to beryl formation. The liquids saturated with spodumene have large variations of Li, possibly related to metastable state at Li unsaturation-supersaturation or heterogeneous distribution of lithium in the system. |
| WOS关键词 | NO. 3 PEGMATITE ; PIKES-PEAK BATHOLITH ; U-PB ZIRCON ; MAGMATIC-HYDROTHERMAL EVOLUTION ; LATE RE-EQUILIBRATION ; GRANITIC PEGMATITES ; NORTHWESTERN CHINA ; TA-MINERALIZATION ; GEOCHEMICAL EVOLUTION ; TECTONIC EVOLUTION |
| 资助项目 | Natural Science Foundation of China[41602095] ; Key projects in National Science and Technology Pillar Program[2011BAB06B03] ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP)[2019QZKK0802] ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP)[2019QZKK0806] ; Key Research Program of the Institute of Geology and Geophysics, Chinese Academy of Sciences[IGGCAS-201902] ; National Geological Survey Project of Altay[DD20160006] |
| WOS研究方向 | Geochemistry & Geophysics ; Mineralogy ; Mining & Mineral Processing |
| 语种 | 英语 |
| WOS记录号 | WOS:000774075300001 |
| 出版者 | MDPI |
| 资助机构 | Natural Science Foundation of China ; Natural Science Foundation of China ; Natural Science Foundation of China ; Natural Science Foundation of China ; Key projects in National Science and Technology Pillar Program ; Key projects in National Science and Technology Pillar Program ; Key projects in National Science and Technology Pillar Program ; Key projects in National Science and Technology Pillar Program ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; 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 ; 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 Geological Survey Project of Altay ; National Geological Survey Project of Altay ; National Geological Survey Project of Altay ; National Geological Survey Project of Altay ; Natural Science Foundation of China ; Natural Science Foundation of China ; Natural Science Foundation of China ; Natural Science Foundation of China ; Key projects in National Science and Technology Pillar Program ; Key projects in National Science and Technology Pillar Program ; Key projects in National Science and Technology Pillar Program ; Key projects in National Science and Technology Pillar Program ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; 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 ; 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 Geological Survey Project of Altay ; National Geological Survey Project of Altay ; National Geological Survey Project of Altay ; National Geological Survey Project of Altay ; Natural Science Foundation of China ; Natural Science Foundation of China ; Natural Science Foundation of China ; Natural Science Foundation of China ; Key projects in National Science and Technology Pillar Program ; Key projects in National Science and Technology Pillar Program ; Key projects in National Science and Technology Pillar Program ; Key projects in National Science and Technology Pillar Program ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; 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 ; 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 Geological Survey Project of Altay ; National Geological Survey Project of Altay ; National Geological Survey Project of Altay ; National Geological Survey Project of Altay ; Natural Science Foundation of China ; Natural Science Foundation of China ; Natural Science Foundation of China ; Natural Science Foundation of China ; Key projects in National Science and Technology Pillar Program ; Key projects in National Science and Technology Pillar Program ; Key projects in National Science and Technology Pillar Program ; Key projects in National Science and Technology Pillar Program ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; 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 ; 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 Geological Survey Project of Altay ; National Geological Survey Project of Altay ; National Geological Survey Project of Altay ; National Geological Survey Project of Altay |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/105045]  |
| 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 | Zhou, Qifeng; Qin, Kezhang |
| 作者单位 | 1.China Met Geol Bur, Inst Mineral Resources Res, Beijing 101300, 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.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing 100049, Peoples R China 5.China Univ Geosci, Sch Earth Resources, State Key Lab Geol Proc & Mineral Resources, Key Lab Geol Survey & Evaluat,Minist Educ, Wuhan 430074, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhou, Qifeng,Qin, Kezhang,Tang, Dongmei,et al. A Combined EMPA and LA-ICP-MS Study of Muscovite from Pegmatites in the Chinese Altai, NW China: Implications for Tracing Rare-Element Mineralization Type and Ore-Forming Process[J]. MINERALS,2022,12(3):23. |
| APA | Zhou, Qifeng,Qin, Kezhang,Tang, Dongmei,&Wang, Chunlong.(2022).A Combined EMPA and LA-ICP-MS Study of Muscovite from Pegmatites in the Chinese Altai, NW China: Implications for Tracing Rare-Element Mineralization Type and Ore-Forming Process.MINERALS,12(3),23. |
| MLA | Zhou, Qifeng,et al."A Combined EMPA and LA-ICP-MS Study of Muscovite from Pegmatites in the Chinese Altai, NW China: Implications for Tracing Rare-Element Mineralization Type and Ore-Forming Process".MINERALS 12.3(2022):23. |
入库方式： OAI收割
来源：地质与地球物理研究所
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