Regional and Specific Deposits

Chapter 1. The Timing of Mineralization in Stratiform Copper Deposits Introduction Criteria for Post-Sedimentary Mineralization at White Pine, Michigan Configuration of the Mineralized Zone Mineralogy Seal Lake, Labrador Creta, South-Central U.S.A The Kupferschiefer, North-Central Europe Central African Copperbelts The Zambian Copperbelt The Shaban Copperbelt Other Deposits Complementary Sources and Transport Mechanisms Concluding Remarks Acknowledgements Appendix - Usage of Some Descriptive and Genetic Terms in this Chapter ReferencesChapter 2. Oolitic Iron Formations Introduction Chronological Development of Oolitic-Inland-Sea Iron Formation Precambrian Oolitic-Inland-Sea Iron Formation Paleozoic Oolitic-Inland-Sea Iron Formation Mesozoic Oolitic-Inland-Sea Iron Formation Tertiary Oolitic-Inland-Sea Iron Formation Tertiary Oolitic-Inland-Sea Iron Formation of Colombia and Venezuela Introduction Stratigraphy of the Paz de Rio Area, Colombia General Features of the Paz de Rio Iron Formation Mineralogy of the Paz de Rio Iron Formation Petrography of the Paz de Rio Iron Formation Chemistry of the Paz de Rio Iron Formation Sedimentary Environment of the Paz de Rio Iron Formation Sabanalarga Oolitic-Inland-Sea Iron Formation Proposed Origin of Oolitic-Inland-Sea Iron Formations Statement of the Problem Outline of the Genetic Model Evaluation of the Genetic Model Evidence for the Genetic Model Previous Arguments Against Related Genetic Models Other Genetic Models for Oolitic-Inland-Sea Iron Formations Constraint on Sedimentation Rate Hypothesis of Marine Iron Supply Hypotheses of Fluvial Iron Supply Hypotheses of Lateral And Upward Groundwater Supply of Iron Miscellaneous Hypotheses Proposed Modern Lacustrine Ferriferous Oolite Relevant Quaternary Carbonate Ferruginization Possible Implications of the Genetic Model ReferencesChapter 3. Metalliferous Deep-Sea Sediments Introduction Background Metal Source and Composition Economic Significance and Related Ores Principal Types of Deep-Sea Metal-Enriched Sediments Carbonaceous Sediments Metalliferous Sediments Nature of Metal-Bearing Phases Iron Oxide Phases Iron Smectite Phase Sulphide Phases Manganese Oxide Phase Other Phases Size Fractionation and Chemical Leaching of the Iron Phases Marine Distribution and Nature of Surface and Near-Surface Deposits East Pacific Rise Iron in East Pacific Rise Sediments Bauer Deep Galapagos Spreading Centre Northeastern Pacific Southwestern Pacific Basin Mid-Atlantic Ridge Indian Ocean Red Sea Submarine Volcanic Vents Marine Distribution and Nature of Basal Deposits Pacific Ocean Atlantic Ocean Indian Ocean Sediment Chemistry Compositional Variation Metal Accumulation Rates Structural Setting and Associated Deposits Transform Fault Valley "A", Famous Area of Mid-Atlantic Ridge Tag Geothermal Area, North Atlantic Red Sea Ophiolite Sequences Massive Sulphide Ores Origin Significance to Geochemical Exploration for Ores Summary Acknowledgments ReferencesChapter 4.