Geochemical Signature of Magmatic-Hydrothermal Fluids Exsolved from the Beauvoir Rare-Metal Granite (Massif Central, France): Insights from LA-ICPMS Analysis of Primary Fluid Inclusions

Figure 10

Phase diagram of the H₂O-NaCl-LiCl system (after [44]) in which the microthermometric data of the L1- and L2-type fluid inclusions are reported. Concentrations are expressed in wt.%. E, E′, and E^″ refer to the eutectic points and P, P′, and P^″ refer to the peritectic points (values given in [44]). Isotherms are given in °C and were extrapolated for T > 100°C in the stability field of halite from the isotherms of the H₂O-NaCl-CaCl₂ diagram from Bodnar [43] (see explanation in text). Estimations of the bulk salinity and Na/Li ratios for the different fluid inclusions are reported in Table 2.