Construction of FT-IR micro-spectroscopy system: In situ studies on reaction-dynamics of material

doi:10.18654/1000-0569/2019.01.20

CORC > 地质与地球物理研究所 > 中国科学院地质与地球物理研究所 > 岩石圈演化国家重点实验室

	Construction of FT-IR micro-spectroscopy system: In situ studies on reaction-dynamics of material
	Su Wen 1; Liu ZhenXian 2,3; Chen Fei 1; Gao Jing 1; Li XiaoGuang 1
刊名	ACTA PETROLOGICA SINICA
	2019
卷号	35 期号:1 页码:252-260
关键词	Extension The level of IR light source Micro-FT-IR HT-HP In situ
ISSN号	1000-0569
DOI	10.18654/1000-0569/2019.01.20
英文摘要	This project is to develop a custom in-situ infrared (IR) microscope for high-pressure and high/low temperature FT-IR studies on Bruker Vertex 70v vacuum FT-IR spectrometer. This microscope system is specially designed with horizontal IR beam together with a ruby pressure calibration system and a temperature control system of external heater, an ideal platform for in-situ high-pressure and high/low temperature IR spectroscopic research on the properties and structures of the materials in the deep interiors of planets. High pressure and temperature IR spectra of epidote were obtained with this experimental platform to simulate and investigate its structure and water solubility under condition of the different temperature and pressure during subduction, together with mineral chemical characteristics and Raman data, to look insight into the dynamic evolution of mineral' s physicochemical property and water cycle in the whole process of subduction. The data of epidote on IR spectroscopic and Raman spectroscopic research in-situ under high-pressure and high temperature show that the structure of the epidote remained stable, while temperature increasing from room temperature to 873K, pressure from 0. 1GPa to 11. 87GPa. In particular, the M-O bond with weak compressibility of the epidote is related to the substitution of Fe-Al on the octahedron. OH vibration spectrums in infrared spectrum are sudden increase and disappearance, which maybe related to redox of Fe. Our results demonstrate that epidotite can be stable at least within the range of P = 11. 87 similar to 12. 73GPa and T = 773 similar to 873 K. Therefore, epidotite, as hydrous mineral, could have carried water into the mantle.
WOS关键词	EQUATION-OF-STATE ; HIGH-PRESSURE ; ABSORPTION-SPECTRA ; INFRARED-SPECTROSCOPY ; HIGH-TEMPERATURE ; EPIDOTE ; RUBY ; GPA ; DEHYDROXYLATION ; FLUORESCENCE
WOS研究方向	Geology
语种	英语
出版者	SCIENCE PRESS
WOS记录号	WOS:000456937400020
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/90493]
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	Su Wen
作者单位	1.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing 100029, Peoples R China 2.George Washington Univ, Inst Mat Sci, Washington, DC 20052 USA 3.George Washington Univ, Dept Civil & Environm Engn, Washington, DC 20052 USA
推荐引用方式 GB/T 7714	Su Wen,Liu ZhenXian,Chen Fei,et al. Construction of FT-IR micro-spectroscopy system: In situ studies on reaction-dynamics of material[J]. ACTA PETROLOGICA SINICA,2019,35(1):252-260.
APA	Su Wen,Liu ZhenXian,Chen Fei,Gao Jing,&Li XiaoGuang.(2019).Construction of FT-IR micro-spectroscopy system: In situ studies on reaction-dynamics of material.ACTA PETROLOGICA SINICA,35(1),252-260.
MLA	Su Wen,et al."Construction of FT-IR micro-spectroscopy system: In situ studies on reaction-dynamics of material".ACTA PETROLOGICA SINICA 35.1(2019):252-260.