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Raman spectroscopy-based screening of zircon for reliable water content and oxygen isotope measurements
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
2022-05-25
Source PublicationAMERICAN MINERALOGIST
ISSN0003-004X
Volume107Issue:5Pages:936-945
AbstractWater 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.
KeywordZircon water content A-type granite Raman spectroscopy full-width at half maximum (FWHM) Raman shift SIMS trace element
DOI10.2138/am-2022-8075
Funding OrganizationNational 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
WOS KeywordA-TYPE GRANITES ; HF-O ISOTOPES ; U-PB AGE ; RADIATION-DAMAGE ; WORKING REFERENCE ; METAMICT ZIRCON ; HYDROXYL-GROUPS ; NATURAL ZIRCON ; CHINA ; GEOCHRONOLOGY
Language英语
Funding ProjectNational Natural Science Foundation of China[41688103] ; National Natural Science Foundation of China[41673010] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDB18000000]
Funding OrganizationNational 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
WOS Research AreaGeochemistry & Geophysics ; Mineralogy
WOS SubjectGeochemistry & Geophysics ; Mineralogy
WOS IDWOS:000790666400015
PublisherMINERALOGICAL SOC AMER
Citation statistics
Document Type期刊论文
Identifierhttp://ir.iggcas.ac.cn/handle/132A11/105179
Collection岩石圈演化国家重点实验室
Corresponding AuthorXu, Yi-Gang
Affiliation1.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
Recommended Citation
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.
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