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Raman Spectra of Bredigite at High Temperature and High Pressure

文献类型：期刊论文

作者Xiong Zhi-hua1; Zhao Ming-zhen2; He Jun-guo3,4; Li Yi-peng5; Li Hong-zhong4,6
刊名SPECTROSCOPY AND SPECTRAL ANALYSIS
出版日期2016-10-01
卷号36期号:10页码:3404-3409
关键词Bredigite High temperature Raman High pressure Raman Anharmonic coefficients
DOI10.3964/j.issn.1000-0593(2016)10-3404-06
文献子类Article
英文摘要Bredigite was synthesized by using the Piston-Cylinder in 1. 2 GPa and 1 473 K. With external heating device and diamond anvil cell, high temperature and high pressure Raman spectra of bredigite were collected at temperatures 298, 353, 463, 543, 663, 773 and 873 K and with pressure from 1 atm up to 14. 36 GPa (room temperature). The SEM image showed that the sample consisted of one crystalline phase with grain size ranging from 10 similar to 20 mu m. The EPMA data suggest a chemical formula of Ca-7. 03(2) Mg-0. 98(2) Si-3. 94(2) O-16 which was identical to the theoretical component of bredigite. The Raman spectroscopic results indicate there were 29 vibration bands of bredigite at high temperature. Some bands were merging, weakening and disappearing increasingly with the temperature, which was obvious in the range of 800 similar to 1 200 cm(-1). The vibration bands of 909, 927 and 950 cm(-1) disappeared at 873, 773 and 873 K, respectively. The results primarily indicated that the structure of bredigite was stable under experimental condition. In addition, isobaric mode-Gruneisen parameters and isothermal mode-Gruneisen parameters were calculated, yielding 1. 47 (2) and 0. 45(3) as their mean values, respectively. Anharmonic coefficients were estimated based on the high temperature and high pressure Raman experiments, showing that the contributions to anharmonic-effect induced with the Si-O vibration modes were smaller than other modes.
WOS关键词CRYSTAL-CHEMISTRY ; FORSTERITE ; MONTICELLITE ; WADSLEYITE ; SILICATES ; DIOPSIDE ; LARNITE ; MANTLE
WOS研究方向Spectroscopy
语种英语
WOS记录号WOS:000385475500060
资助机构National Natural Science Foundation of China(410090371 ; National Natural Science Foundation of China(410090371 ; 41273072 ; 41273072 ; 41303025) ; 41303025) ; National Natural Science Foundation of China(410090371 ; National Natural Science Foundation of China(410090371 ; 41273072 ; 41273072 ; 41303025) ; 41303025)
源URL[http://ir.iggcas.ac.cn/handle/132A11/53296]  
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
作者单位1.Peking Univ, Sch Earth & Space Sci, Beijing 100871, Peoples R China
2.South China Univ Technol, Sch Mat Sci & Engn, Guangzhou 510275, Guangdong, Peoples R China
3.Sun Yat Sen Univ, Sch Earth Sci & Geol Engn, Guangzhou 510275, Guangdong, Peoples R China
4.Guangdong Prov Key Lab Geol Proc & Mineral Resour, Guangzhou 510275, Guangdong, Peoples R China
5.Univ Houston, Dept Earth & Atmospher Sci, Houston, TX 77204 USA
6.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Mineral Resource, Beijing 100029, Peoples R China
推荐引用方式
GB/T 7714		 Xiong Zhi-hua,Zhao Ming-zhen,He Jun-guo,et al. Raman Spectra of Bredigite at High Temperature and High Pressure[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS,2016,36(10):3404-3409.
APA Xiong Zhi-hua,Zhao Ming-zhen,He Jun-guo,Li Yi-peng,&Li Hong-zhong.(2016).Raman Spectra of Bredigite at High Temperature and High Pressure.SPECTROSCOPY AND SPECTRAL ANALYSIS,36(10),3404-3409.
MLA Xiong Zhi-hua,et al."Raman Spectra of Bredigite at High Temperature and High Pressure".SPECTROSCOPY AND SPECTRAL ANALYSIS 36.10(2016):3404-3409.

入库方式： OAI收割

来源：地质与地球物理研究所

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