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Beryl Mineralogy and Fluid Inclusion Constraints on the Be Enrichment in the Dakalasu No.1 Pegmatite, Altai, NW China

文献类型：期刊论文

作者Suo, Qingyu1,2,3; Shen, Ping1,2,3; Luo, Yaoqing1,2,3; Li, Changhao1,3; Feng, Haoxuan1,3; Cao, Chong1,3,4; Pan, Hongdi5; Bai, Yingxiong1,2,3
刊名MINERALS
出版日期2022-04-01
卷号12期号:4页码:19
关键词beryl undercooling melt-melt-fluid immiscibility Dakalasu No 1 pegmatite Chinese Altai
DOI10.3390/min12040450
英文摘要The Dakalasu No.1 pegmatitic rare-element deposit is a representative of Be-Nb-Ta pegmatites in Altai, Xinjiang, China. Beryl is the most important beryllium-carrying mineral in Dakalasu No.1 pegmatite. To constrain the concentration mechanism of Be, we conducted a study of the textural relationships and chemical compositions (major and trace elements) of beryl, along with microthermometry and Raman spectroscopy on beryl-hosted fluid inclusions. Two generations of beryl were recognized. The early beryl I was formed in the magmatic stage, whereas the late beryl IIa and IIb were formed in the magmatic-hydrothermal stage. Lithium and Cs contents increased from beryl I, beryl IIa, to beryl IIb, whereas Mg and Rb contents decreased. Scandium, V, and Ga contents of beryl IIa are similar to beryl IIb, but different in beryl I. Titanium is enriched in beryl IIa. The high FeO contents and Na/Cs ratios of beryl (I, IIa, and IIb) reveal the low degree of differentiation evolution of the Dakalasu No.1 pegmatite. Two types of melt inclusions and four types of fluid inclusions were identified in beryl IIa, IIb, and associated quartz. The microthermometry results indicated that beryl II is formed at 500 degrees C-700 degrees C, and 200 MPa-300 MPa. The Dakalasu No.1 pegmatite melt is enriched in volatiles, such as B, F, and CO2, evidenced by a large amount of tourmaline in the wall zone, the occurrence of a variety of tiny cryolite (Na3AlF6) inclusions, and CO2-rich fluid inclusions in beryl IIa. The enrichment mechanism of Be may be related to the crystallization of beryl at highly undercooled states of melt, and melt-melt-fluid immiscibility during the evolution and differentiation of the melt.
WOS关键词RARE-ELEMENT PEGMATITE ; HYDROTHERMAL PROCESSES ; GRANITIC PEGMATITE ; RUTILE SOLUBILITY ; EVOLUTION ; AGE ; ZIRCON ; MELT ; TEMPERATURES ; EQUATION
资助项目National Natural Science Foundation of China[91962213] ; Regional Collaborative Innovation Project, Xinjiang[2020E01043] ; International Partnership Program of International Cooperation Bureau, Chinese Academy of Sciences[132A11KYSB20190070] ; National Key R&D Program of China[2018YFC0604004]
WOS研究方向Geochemistry & Geophysics ; Mineralogy ; Mining & Mineral Processing
语种英语
WOS记录号WOS:000786133700001
出版者MDPI
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 ; Regional Collaborative Innovation Project, Xinjiang ; Regional Collaborative Innovation Project, Xinjiang ; Regional Collaborative Innovation Project, Xinjiang ; Regional Collaborative Innovation Project, Xinjiang ; International Partnership Program of International Cooperation Bureau, Chinese Academy of Sciences ; International Partnership Program of International Cooperation Bureau, Chinese Academy of Sciences ; International Partnership Program of International Cooperation Bureau, Chinese Academy of Sciences ; International Partnership Program of International Cooperation Bureau, Chinese Academy of Sciences ; 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 ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Regional Collaborative Innovation Project, Xinjiang ; Regional Collaborative Innovation Project, Xinjiang ; Regional Collaborative Innovation Project, Xinjiang ; Regional Collaborative Innovation Project, Xinjiang ; International Partnership Program of International Cooperation Bureau, Chinese Academy of Sciences ; International Partnership Program of International Cooperation Bureau, Chinese Academy of Sciences ; International Partnership Program of International Cooperation Bureau, Chinese Academy of Sciences ; International Partnership Program of International Cooperation Bureau, Chinese Academy of Sciences ; 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 ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Regional Collaborative Innovation Project, Xinjiang ; Regional Collaborative Innovation Project, Xinjiang ; Regional Collaborative Innovation Project, Xinjiang ; Regional Collaborative Innovation Project, Xinjiang ; International Partnership Program of International Cooperation Bureau, Chinese Academy of Sciences ; International Partnership Program of International Cooperation Bureau, Chinese Academy of Sciences ; International Partnership Program of International Cooperation Bureau, Chinese Academy of Sciences ; International Partnership Program of International Cooperation Bureau, Chinese Academy of Sciences ; 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 ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Regional Collaborative Innovation Project, Xinjiang ; Regional Collaborative Innovation Project, Xinjiang ; Regional Collaborative Innovation Project, Xinjiang ; Regional Collaborative Innovation Project, Xinjiang ; International Partnership Program of International Cooperation Bureau, Chinese Academy of Sciences ; International Partnership Program of International Cooperation Bureau, Chinese Academy of Sciences ; International Partnership Program of International Cooperation Bureau, Chinese Academy of Sciences ; International Partnership Program of International Cooperation Bureau, Chinese Academy of Sciences ; 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
源URL[http://ir.iggcas.ac.cn/handle/132A11/105138]  
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Shen, Ping
作者单位1.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Mineral Resources, Beijing 100029, Peoples R China
2.Chinese Acad Sci, Innovat Acad Earth Sci, Beijing 100029, Peoples R China
3.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing 100049, Peoples R China
4.North China Univ Sci & Technol, Coll Min Engn, Tangshan 063210, Peoples R China
5.Changan Univ, Sch Earth Sci & Resources, Xian 710054, Peoples R China
推荐引用方式
GB/T 7714		 Suo, Qingyu,Shen, Ping,Luo, Yaoqing,et al. Beryl Mineralogy and Fluid Inclusion Constraints on the Be Enrichment in the Dakalasu No.1 Pegmatite, Altai, NW China[J]. MINERALS,2022,12(4):19.
APA Suo, Qingyu.,Shen, Ping.,Luo, Yaoqing.,Li, Changhao.,Feng, Haoxuan.,...&Bai, Yingxiong.(2022).Beryl Mineralogy and Fluid Inclusion Constraints on the Be Enrichment in the Dakalasu No.1 Pegmatite, Altai, NW China.MINERALS,12(4),19.
MLA Suo, Qingyu,et al."Beryl Mineralogy and Fluid Inclusion Constraints on the Be Enrichment in the Dakalasu No.1 Pegmatite, Altai, NW China".MINERALS 12.4(2022):19.

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来源：地质与地球物理研究所

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