| 1 | Clay environments and the clay cycle |
| 2 | Weathering, Sedimentation, Deep-sea alteration, Burial diagenesis, Metamorphism, Hydrothermal alteration, Clays as an Interface in the environmental cycle |
| 3 | Origin of cIays. Mineral instabilities: Types of reaction, Hydrolysis, Activity diagrams, Alteration of phyllosilicates |
| 4 | Geological environments, Types of weathering profile in macrocrystalline rocks, Mineralogical control-weathering in phyllosilicate¬ bearing rocks, Topographic effect, Erosion, Hydrothermal alteration, Deep-sea alteration and hydrothermal activity |