In Situ Raman Spectroscopic Study of Barite as a Pressure Gauge Using a   Hydrothermal Diamond Anvil Cell

doi:10.1177/0003702815620556

CORC > 北京大学 > 地球与空间科学学院

	In Situ Raman Spectroscopic Study of Barite as a Pressure Gauge Using a Hydrothermal Diamond Anvil Cell
	Liu, Chuanjiang ; Wang, Duojun ; Zheng, Haifei
刊名	APPLIED SPECTROSCOPY
	2016
关键词	Barite Pressure gauge Raman spectrum Hydrothermal diamond anvil cell SCANNING-ELECTRON-MICROSCOPY ENERGY-DISPERSIVE ANALYSIS FLUID INCLUSIONS DAUGHTER MINERALS BASO4
DOI	10.1177/0003702815620556
英文摘要	In situ Raman measurements of barite were performed at temperatures in the range of 298-673 K and pressures in the range of 105-1217 MPa using a hydrothermal diamond anvil cell combined with laser Raman spectroscopy. The Raman frequency and the full width at half maximum (FWHM) of the most intense v(1) Raman peak for barite as a function of pressure and temperature were obtained. In the experimental P-T ranges, the v(1)Raman band systematically shifted toward low wavenumbers with increasing pressure and temperature. The positive pressure dependence of v(1)Raman frequency indicates stress-induced shortening of the S-O bond, whereas the negative temperature dependence shows temperature-induced expansion of the S-O bond. In contrast, the observed v(1)Raman band became broadened, which should be attributed to the reduced ordering of molecular structure. Based on the obtained data, the established relationships among the Raman shift or the FWHM, pressure and temperature can be used to obtain good estimates of the internal pressure in natural barite-bearing fluid inclusions or hydrothermal diamond anvil cell. This is a sensitive and reliable approach to the accurate determination of geological pressure.; China Postdoctoral Science Foundation [2015M571097]; Natural Science Foundation of China [41374095]; CAS/CAFEA international partnership program for creative research teams [KZZD-EW-TZ-19]; SCI(E); EI; PubMed; ARTICLE; duojunwang@ucas.ac.cn; 2; 347-354; 70
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/434785]
专题	地球与空间科学学院
推荐引用方式 GB/T 7714	Liu, Chuanjiang,Wang, Duojun,Zheng, Haifei. In Situ Raman Spectroscopic Study of Barite as a Pressure Gauge Using a Hydrothermal Diamond Anvil Cell[J]. APPLIED SPECTROSCOPY,2016.
APA	Liu, Chuanjiang,Wang, Duojun,&Zheng, Haifei.(2016).In Situ Raman Spectroscopic Study of Barite as a Pressure Gauge Using a Hydrothermal Diamond Anvil Cell.APPLIED SPECTROSCOPY.
MLA	Liu, Chuanjiang,et al."In Situ Raman Spectroscopic Study of Barite as a Pressure Gauge Using a Hydrothermal Diamond Anvil Cell".APPLIED SPECTROSCOPY (2016).