Fig. 4: Representative Raman spectra of two type of fluid inclusions in host ankerite and amphibole.
From: Immiscible metamorphic water and methane fluids preserved in carbonated eclogite
a in host ankerite. b in host actinolite. The black and blue Raman peaks represent the full spectrum of the host mineral and the liquid phase of H2O peaks, respectively; the purple and red Raman peaks are corresponding to the gas phase. The inset images are electron micrographs of the fluid inclusions showing the existence of the two types of fluid inclusions. The inset Raman spectra are the retest results to confirm the existence of CH4.
