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Using a Diamond Anvil Cell combined with micro Raman spectroscopy,the quantitative relations among Raman shifts,pressure and temperature were obtained for the vibration of O-H in H_2O-NaCl,C-O in CO_3~(2-),S-O in SO_4~(2-) and C-H in n-heptane-cyclohexane.Based on the quantitative relationships obtained,it is possible to determine the inner pressure for single fluid inclusions and to further determine the isochore of the systems.It is not only helpful to obtain the forming temperatures and pressures of the enclosing minerals,but also to be able to provide information concerning the chemical compositions of the fluid inclusions.
Using a Diamond Anvil Cell combined with micro Raman spectroscopy, the quantitative relations among Raman shifts, pressure and temperature were obtained for the vibration of OH in H 2 O-NaCl, CO in CO 3 2-, SO in SO 4 2-, and CH in n-heptane-cyclohexane. Based on the quantitative relationships obtained, it is possible to determine the inner pressure for single fluid inclusions and to further determine the isochore of the systems. It is not only helpful to obtain the forming temperatures and pressures of the enclosing minerals, but also to be able to provide information concerning the chemical compositions of the fluid inclusions.