ORIGIN OF THE “COLD” (LOW-TEMPERATURE) GRANULITES IN THE BELOMORIAN MOBILE BELT: THE ROLE OF CARBON DIOXIDE IN METAMORPHIC FLUID
In the Belomorian mobile belt, manifestations of granulitic mineral assemblages occur among amphibolite-facies rocks. Thermobarometric calculations display that some granulitic scapolite-bearing assemblages in mafic rocks were formed during high-temperature, high-pressure amphibolite-facies metamorphism. These granulitic assemblages resulted from the infiltration of CO2-rich fluid with low aH2O through amphibolites.