摘要
用金刚石压腔研究了Na2S04溶液在温度30—400℃、压力90—2400MPa条件下的拉曼光谱特征。结果表明：温度相同时，SO4^2-的对称伸缩振动随压力增大向高频方向偏移；而在压力基本相同时，随温度升高则向低频方向偏移。经过数据拟合得到了SO4^2-对称伸缩振动的拉曼位移与温度、压力的关系为：ρ=190.44△vp＋0．0027t^2＋2．9019t-111．68。该公式可以用来作为流体包裹体的压力计。
The Raman spectroscopy of Na2SO4 sulution was conducted in a diamond anvil cell at temperatures fwm 30 to 400℃ and pressures from 90 to 2400 MPa. The result showed that at the consistent temperature the SO4^2- symmetric stretching vibration shifted to higher wavenumbers with increasing pressure, and at the consistent pressure it shifted to lower wavenumbers with the rise of temperature. Moreover, we obtained an equation ρ=190.44△vp＋0.0027t^2＋2.9019t-111.68 as the correlation between temperature and pressure and Raman shift of the SO4^2- symmetric stretching vibration by fitting the data, and the equation can be used as a pressure gauge of fluid inclusions.
出处
《矿物学报》
CAS
CSCD
北大核心
2006年第1期89-92,共4页
Acta Mineralogica Sinica
基金
国家自然科学基金重大项目(批准号:10299040)
国家自然科学基金资助项目(批准号:40173019)
博士点基金资助项目(资助号:20030001053)
关键词
金刚石压腔
高温
高压
拉曼光谱
Na2SO4溶液
流体包裹体
压力计
diamond anvil cell
high temperature
high pressure
Raman spectroscopy
Na2SO4 solution
fluid inclusion
pressure gauge
