1. GENERAL PART. Objectives, background, style. Where are the Precambrian rocks? The nature of the present Precambrian outcrop. Precambrian stratigraphy, evolution and ores. Organization and interpretation of Precambrian outcrop regions. Precambrian ore deposits organized by lithostructural domains: introduction to the Systematic Part 11. 2. SYSTEMATIC PART. 1. Greenstone association: (meta)volcanic > (meta)sedimentary and interacting rocks. 2. Shale (slate, schist)-litharenite-(meta-quarzite)association. 3. "Rift association", shallow water (meta)sediments and (meta)volcanics in extensional structures. 4. Diverse ("land-to-shelf") (meta)sedimentary association. 5. Granitoids, subaerial volcanics, pegmatites. 6. Mafic and ultramafic intrusions. 7. Alkaline igneous association. 8. High-grade metamorphic association. 9. Meteorites and terrestrial impacts (all ages). SERVICE PART. APPENDIX: Inventory of the principal mineralized Precambrian regions of the world: (A) Metamorphosed basement shields, blocks, orogens, provinces; (B) Selected Precambrian post-orogenic basinal and rift sequences and major anorogenic complexes; (C) Precambrian terranes within Phanerozoic orogens: selected examples.