This course covers thermodynamics and kinetics as applied to earth systems, over a range of conditions relevant to the Earth’s interior and its surface, with emphasis on the hydrosphere and lithosphere. The course examines speciation and phase stability in aqueous solutions, and pressure-temperature-composition relationships as applied to diagenesis, hydrothermal systems, metamorphism, and magmatism. Â Students will learn to use the software package Geochemist’s Workbench (GWB) to assist in constructing and understanding phase diagrams and reaction modeling.