Abstract：Raman spectra of aragonite were studied at ambient temperature and pressure of 0.1～2 GPa in a moissanite anvil cell using Raman spectrum technique. The relations between the Raman shifts of aragonite and the system pressure are given as follows: ν153(cm-1)=0.003 5p(MPa)+154.0, ν206=0.006 0p+206.3, ν704=0.002 1p+704.2, ν1 085=0.003 5p+1 085.3. No phase transition occurred in aragonite within the range of experimental pressure. Similar to other carbonate minerals (magnesite, dolomite), the measured relative pressure-shift of the Raman line of the symmetric stretching vibration of aragonite is greater at 0.1-2 GPa than at ultrahigh pressure, which indicates that the C—O bond compressibility of the CO3 groups is related to the pressure, and it is more compressible at 0.1～2 GPa than at higher pressure.
付培歌, 郑海飞* . 常温0.1～2 GPa压力下文石的拉曼光谱研究 [J]. 光谱学与光谱分析, 2011, 31(01): 127-130.
FU Pei-ge, ZHENG Hai-fei* . Raman Spectra of Aragonite at the Pressure of 0.1~2 GPa and Ambient Temperature . SPECTROSCOPY AND SPECTRAL ANALYSIS, 2011, 31(01): 127-130.
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