Pre-Mesozoic Geology in France and Related Areas: and Related Areas: IGCP-Project 233

I Geophysics.- Seismic Reflection Images of the Pre-Mesozoic Crust in France and Adjacent Areas.- Gravity and Magnetic Expression of Terranes and Their Correlation Beneath Overstep Sequences.- II A The Cadomian Orogeny in the Armorican Massif.- Lithostratigraphy.- Structure and Metamorphism.- Igneous Activity.- Conclusions.- II B The Variscan Orogeny in the Armorican Massif.- Stratigraphy and Paleontology.- The Variscan.- Cambrian of the Armorican Massif.- Ordovician, Silurian, and Devonian of the Medio-North-Armorican Domain.- Paleozoic of the Ligerian Domain.- Paleozoic of the Vendean Domain.- Carboniferous of the Armorican Massif.- Permian of the Armorican Massif.- Paleogeographic Synthesis.- Structure and Metamorphism.- Early Tectonic Events (Ordovician).- Eo-Hercynian Events in the Armorican Massif.- Intracontinental Hercynian Events in the Armorican Massif.- Igneous Activity.- Magmatic Record of the Geodynamic Evolution of Brittany and Vendée During Paleozoic Times: Trace Element Constraints.- Variscan Granites from Brittany.- II C Metallogeny.- Metallogeny of the Armorican Massif.- III The Massif Central.- Lithostratigraphy of Variscan Terranes in the French Massif Central: A Basis for Paleogeographical Reconstruction.- Biostratigraphy and Dynamics of the Nonmetamorphic Sedimentary Record.- Structure.- Metamorphism.- Igneous Activity. Caledo-Hercynian Magmatism in the French Massif Central.- Metallogenesis of the French Massif Central: Time-Space Relationships Between Ore Deposition and Tectono-Magmatic Events.- IV Correlative Areas.- The Aquitaine Basin.- The Vosges Massif.- Crystalline Provence: Structure and Variscan Evolution.- Pyrenees.- Variscan Basement of the Western Alps: the External Crystalline Massifs.- Corsica and Sardinia in the Variscan Chain.-V.- The French Paleozoic Terranes.