Infrared Spectroscopic studies on the Mobility of Metamorphic Fluid in Quartz veins of Dharwar Craton

The thermal induced variations of water inclusions in their OH stretching mode region were probed in quartz veins from Dharwar Craton, India, using fourier transformed infrared spectroscopy (FTIR) in the temperature range 25 to 300 oC. All the inclusions have composition H2O-NaCl-CO2. The peak positions monotonously shift to higher wavenumbers with increasing temperature with slopes of 0.23 and 0.43 cm -1 °C for the inclusions of Eastern and Western Dharwar Craton, respectively. The effect of CO2 on the mobility of water inclusions was also investigated and our results indicate higher mobility for CO2 rich inclusions.