Raman spectroscopy for H₂O-CO₂ in cordierite, and its implications for high and ultrahigh temperature metamorphism

Abstract

H2O and CO2 contents in cordierite from four different high and ultrahigh temperature metamorphic terranes have been qualitatively analyzed using Laser Raman spectroscopy. Raman spectrum of cordierite suggests that H2O is dominant for Ryoke, Namaqua and Mather metamorphic rocks, and that both H2O and CO2 are detected but are not abundant for Napier metamorphic rocks.