Fluids related to endoskarn formation processes in the Guanhães area, Minas Gerais state, Brazil

Abstract

NaCl equivalent) which might be even lower as this Tm is dependent on the pressure developed when the fluid is frozen. The three types of inclusions are interpreted as products of post-formational changes of a homogeneous aqueo-carbonic fluid trapped above the solvus of H2O-CO2 -NaCl(<~2.6wt

) system. The occurrence of deuteric carbonates and their dissolution by fluids from granites may have been the source of CO2 in metasomatized rocks.