Chemical equilibrium. Aqueous solutions. Solution-mineral : carbonates , silicates. Crystal chemistry. Surface chemistry : the solution-mineral interface. Chemical thermodynamics : fundamental principles , phase equilibria. Oxidation and reduction. Isotope geochemistry. Reaction rates and mass transfer. The fluid envelopes. Weathering and soils. Sedimentation and diagenesis : inorganic geochemistry , organic geochemistry. Metamorphism. Formation and crystallization of magmas. Volatiles and magmas. Hydrothermal ore deposits. Distribution of the elements. Historical geochemistry.