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  4. 岩石圈演化国家重点实验室
Raman spectroscopy-based screening of zircon for reliable water content and oxygen isotope measurements

文献类型：期刊论文

作者Yang, Chuan-Mao1,2,3; Xu, Yi-Gang1,2,4; Xia, Xiao-Ping1; Gao, Yu-Ya5,6; Zhang, Wan-Feng1,2; Yang, Ya-Nan1,2; Yang, Qing1,2; Zhang, Le1,2
刊名AMERICAN MINERALOGIST
出版日期2022-05-25
卷号107期号:5页码:936-945
关键词Zircon water content A-type granite Raman spectroscopy full-width at half maximum (FWHM) Raman shift SIMS trace element
ISSN号0003-004X
DOI10.2138/am-2022-8075
英文摘要Water content and oxygen isotopes in zircon provide crucial constraints on magma source and process, yet they can be significantly modified by zircon metamictization, which causes secondary water absorption into the zircon crystal and the concomitant oxygen isotope changes. Therefore, it is imperative to develop a screening scheme to select the least-metamict zircons for the analyses. We propose a screening scheme based on our study on the Suzhou A-type granite (South China) through integrating Raman spectroscopy, water and trace element measurements, and oxygen isotope analysis. The results show that the primary water content is retained in zircon when the full-width at half maximum (FWHM) is 1007 cm(-1) of v(3)(SiO4) vibration band, while the primary delta O-18 is preserved at 1005.5 cm(-1) Raman shift. Changes in trace element concentrations in Suzhou zircons are different from previous observations in metamict zircons but most likely related to magma evolution, which implies that trace elements are insensitive to metamictization. Primary delta O-18 in Suzhou zircons (4.5-6.0 parts per thousand) fall into the mantle range, indicating a dominant mantle contribution to Suzhou granites. Primary water content was estimated at ca. 650-1400 ppm, significantly higher than those of typical I-type granite (400-736 ppm) and upper mantle-derived zircons (81-177 ppm). The high primary zircon water content was not controlled by the sub-solidus process, temperature, pressure, and cation charge balance but considered to reflect the high-water content in melts. This suggests a hydrous origin for the Suzhou A-type granite, which challenges the conventional view of anhydrous petrogenesis for A-type granites.
WOS关键词A-TYPE GRANITES ; HF-O ISOTOPES ; U-PB AGE ; RADIATION-DAMAGE ; WORKING REFERENCE ; METAMICT ZIRCON ; HYDROXYL-GROUPS ; NATURAL ZIRCON ; CHINA ; GEOCHRONOLOGY
资助项目National Natural Science Foundation of China[41688103] ; National Natural Science Foundation of China[41673010] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDB18000000]
WOS研究方向Geochemistry & Geophysics ; Mineralogy
语种英语
WOS记录号WOS:000790666400015
出版者MINERALOGICAL SOC AMER
资助机构National Natural Science Foundation of China ; National Natural Science Foundation of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences
源URL[http://ir.iggcas.ac.cn/handle/132A11/105179]  
专题地质与地球物理研究所_岩石圈演化国家重点实验室
通讯作者Xu, Yi-Gang
作者单位1.Chinese Acad Sci, Guangzhou Inst Geochem, State Key Lab Isotope Geochem, Guangzhou 510640, Peoples R China
2.CAS Ctr Excellence Deep Earth Sci, Guangzhou 510640, Peoples R China
3.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing 100049, Peoples R China
4.Southern Marine Sci & Engn Guangdong Lab, Guangzhou 511458, Peoples R China
5.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China
6.Natl Inst Metrol, Beijing 102200, Peoples R China
推荐引用方式
GB/T 7714		 Yang, Chuan-Mao,Xu, Yi-Gang,Xia, Xiao-Ping,et al. Raman spectroscopy-based screening of zircon for reliable water content and oxygen isotope measurements[J]. AMERICAN MINERALOGIST,2022,107(5):936-945.
APA Yang, Chuan-Mao.,Xu, Yi-Gang.,Xia, Xiao-Ping.,Gao, Yu-Ya.,Zhang, Wan-Feng.,...&Zhang, Le.(2022).Raman spectroscopy-based screening of zircon for reliable water content and oxygen isotope measurements.AMERICAN MINERALOGIST,107(5),936-945.
MLA Yang, Chuan-Mao,et al."Raman spectroscopy-based screening of zircon for reliable water content and oxygen isotope measurements".AMERICAN MINERALOGIST 107.5(2022):936-945.

入库方式： OAI收割

来源：地质与地球物理研究所

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