Rutile solubility in H2O, H2O–SiO2, and H2O–NaAlSi3O8 fluids at 0.7–2.0 GPa and 700–1000 °C: Implications for mobility of nominally insoluble elements

The solubility of fluorite in H2O and H2O–NaCl at high pressure and temperature

The solubility of fluorite in H2O and H2O–NaCl has been measured at 600–1000 °C, 0.5–2.0 GPa in a piston–cylinder apparatus. Fluorite dissolves congruently at all conditions investigated. The data indicate that the concentration of fluorite dissolved in H2O is low at 600 °C and 0.5 GPa (0.0014 mol/kg H2O) but increases strongly with temperature (T) and pressure (P) to 0.247 mol/kg H2O at 1000 °...

The solubility of corundum in H2O at high pressure and temperature and its implications for Al mobility in the deep crust and upper mantle

The solubility of corundum in H2O was measured at 700–1100 °C and 0.5–2.0 GPa using a piston–cylinder apparatus and weight-loss methods. At 700 °C, 0.5 GPa, Al concentration is 0.41±0.15 millimolal (1σ analytical error). Corundum solubility increases strongly with pressure (P) and temperature (T), reaching 2.57±0.15 millimolal at 700 °C, 2.0 GPa, and 27.3± 1.5 millimolal at 1100 °C, 2.0 GPa. Th...

Fluorapatite solubility in H2O and H2O–NaCl at 700 to 900 °C and 0.7 to 2.0 GPa

Rutile solubility in supercritical NaAlSi3O8–H2O fluids

Paragonite stability at 700 C in the presence of H2O–NaCl fluids: constraints on H2O activity and implications for high pressure metamorphism

We carried out reversed piston-cylinder experiments on the equilibrium paragonite = jadeite + kyanite + H2O at 700 C, 1.5–2.5 GPa, in the presence of H2O-NaCl fluids. Synthetic paragonite and jadeite and natural kyanite were used as starting materials. The experiments were performed on four different nominal starting compositions: X(H2O)=1.0, 0.90, 0.75 and 0.62. Reaction direction and extent w...