地质学报（英文版）2009，Vol.83Issue(3)：628-632,5.
Determining Pressure with Daughter Minerals in Fluid Inclusion by Raman Spectroscopy:Sphalerite as an Example
Determining Pressure with Daughter Minerals in Fluid Inclusion by Raman Spectroscopy:Sphalerite as an Example
摘要
Abstract
Raman frequency of some materials,including minerals.molecules and ions, shifts systematically with changing pressure and temperature.This property is often used as a pressure gauge in high pressure experiments with the hydrothermal diamond anvil cell(HDAC).Since the system of fluid inclusion is similar to that of HDAC,it can also be used to determine the internal pressure of fluid inclusions.Sphalerite is a common daughter mineral.In this study,the frequency shift of the 350 cm-1 peak of sphalerite has been studied from 296 to 523 K and from 0.07 to 2.00 GPa using the HDAC.The global slope of the isotherms(σV30/σp)T is 0.0048 in the studied pressure range. No significant variation of the slopes with temperature has been observed.The correlation between the frequency shift of the 350 cm-1 peak of sphalerite and pressure and temperature is constrained as P=208.33(△Vp)350+3.13T-943.75.This relationship may be used to estimate the internal pressure of the sphalerite-bearing fluid inclusions.关键词
pressure/fluid inclusion/sphalerite/RamanKey words
pressure/fluid inclusion/sphalerite/Raman分类
天文与地球科学引用本文复制引用
YANG Yuping,ZHENG Haifei,ZHANG Lifei..Determining Pressure with Daughter Minerals in Fluid Inclusion by Raman Spectroscopy:Sphalerite as an Example[J].地质学报（英文版）,2009,83(3):628-632,5.基金项目
This research was supported by the National Basic Research Program of China (Grant No.2009CB825007 and 2006CB403508) and National Natural Science Foundation of China (Grant No.40730314 and 40821002). （Grant No.2009CB825007 and 2006CB403508）
