Experimental Determination of Phase Equilibria of Micas in the System MgO - Al2O3 - TiO2 - SiO2 - K2O - H2O

9316304 Patino Douce该项目涉及MgO-Al 2 O3-TiO 2-SiO2-K2 O-H2O系统中金云母固溶体热力学性质的系统相平衡研究。 实验方案将基于确定在恒定温度和压力下固定云母组分的化学势的二元相组合中平衡的金云母固溶体的组成。 平衡的方法将建立等温和等压成分反转沿着一组交换矢量选择来描述组成的坚实的理解过程，如地幔交代和生成钾质镁铁质岩浆。

9316304 Patino Douce This project involves a systematic phase equilibrium investigation of the thermodynamic properties of phlogopite solid solution in the system MgO-Al2O3-TiO2-SiO2-K2O-H2O. The experimental program will be based upon determining the composition of phlogopite solid solutions equilibrated in divariant phase assemblages which, at constant temperature and pressure, fix the chemical potentials of the components of the mica. Approach to equilibrium will be established by isothermal and isobaric compositional reversals along a set of exchange vectors chosen to describe the composition of the solid understanding of processes such as mantle metasomatism and generation of potassic mafic magmas.