Ore genesis the state of the art ; in honour of Prof. Paul Ramdohr on the occasion of his 90th birthday with special reference to his main scientific interests

Front Matter....Pages I-XX Front Matter....Pages 1-1 Replacement Phenomena of Terrigenous Minerals by Sulphides in Copper-Bearing Permian Sandstones in Poland....Pages 3-9 Problems of Genesis of Copper Sandstones of Central Europe....Pages 10-15 Hydrothermal Alterations of Conglomeratic Uranium Ores, Pronto Mine, Ontario, Canada....Pages 16-24 The Isotopic Composition of Lead in Galenas in the Uranium Ores at Elliot Lake, Ontario, Canada....Pages 25-37 Pre-Witwatersrand and Witwatersrand Conglomerates in South Africa: A Mineralogical Comparison and Bearings on the Genesis of Gold-Uranium Placers....Pages 38-56 The Tin Deposit of Monte Valerio (Tuscany, Italy): Pneumatolytic-Hydrothermal or Sedimentary-Remobilization Processes?....Pages 57-65 Turbidite Barite in the Ouachita Mountains of Arkansas, U.S.A.....Pages 66-72 The Permo-Triassic Paleokarst Ores of Southwest Sardinia (Iglesiente-Sulcis). An Attempt at a Reconstruction of Paleokarst Conditions....Pages 73-82 Observations on Ore Rhythmites of the Trzebionka Mine, Upper Silesian-Cracow Region, Poland....Pages 83-91 The Genesis of the Zinc-Lead Ore Deposits of Upper Silesia, Poland....Pages 92-96 The Influence of Original Host Rock Character Upon Alteration and Mineralization in the Tri-State District of Missouri, Kansas, and Oklahoma, U.S.A.....Pages 97-107 Karst or Thermal Mineralizations Interpreted in the Light of Sedimentary Ore Fabrics....Pages 108-117 Atoll Texture in Minerals of the Cobaltite-Gersdorffite Series from the Raipas Mine, Finnmark, Norway....Pages 118-130 A New Type of Sulphosalt Mineralization in the Myrthengraben Gypsum Deposit, Semmering, Lower Austria....Pages 131-140 Front Matter....Pages 141-141 Sb-As-Tl-Ba Mineral Assemblage of Hydrothermal-Sedimentary Origin, Gümüsköy Deposit, Kütahya (Turkey)....Pages 143-149 A Strata-Bound Ni-Co Arsenide/Sulphide Mineralization in the Paleozoic of the Yauli Dome, Central Peru....Pages 150-160 Sedimentary and Diagenetic Fabrics in the Cu-Pb-Zn-Ag Deposit of Colquijirca, Central Peru....Pages 161-166 Sulphide Occurrence Near Tunca, Turkey....Pages 167-173 The Condestable Mine, a Volcano-exhalative Deposit in the Mesozoic Coastal Belt of Central Peru....Pages 174-188 Front Matter....Pages 189-189 Chemical Forms of Metal Enrichment in Recent Sediments....Pages 191-199 Front Matter....Pages 189-189 Ocean Floor “Metalliferous Sediments” — Two Possibilities for Genesis....Pages 200-210 Textures, Mineralogy and Genesis of Manganese Nodules on the Blake Plateau, Northwestern Atlantic Ocean....Pages 211-217 Front Matter....Pages 219-219 Vanadium Oxides in the Urcal Deposit, Argentina....Pages 221-229 On the Nature of Co-Ni Asbolane; a Component of Some Supergene Ores....Pages 230-239 Genesis of Low-Grade Chromite Ore Deposits in Lateritic Soils from the Philippines....Pages 240-250 The Oxidized Zone of the Broken Hill Lode, N.S.W.....Pages 251-268 Alteration of Radioactive Minerals in Granite and Related Secondary Uranium Mineralizations....Pages 269-280 Front Matter....Pages 281-281 Native Tellurium from Musariu, Brad Region, Metaliferi (Metalici) Mountains, Romania....Pages 283-295 Metallogenetic Area of Zletovo-Kratovo, Yugoslavia: Mineralogy and Genesis of Ore Deposits....Pages 296-301 The Tin Ore Deposit of Orissa, India....Pages 302-307 The Colquiri Tin Deposit: a Contribution to Its Genesis....Pages 308-318 Laramide Igneous Rocks and Related Porphyry Copper Occurrences of Southwest Romania....Pages 319-335 Polymorphic Variations of Pyrrhotite as Related to Mineralization in the Pyrometasomatic Copper, Zinc, Iron-Sulphide Deposits at the Kawayama Mine, Japan....Pages 336-344 Plasticity of Cryolite and Brecciation in the Cryolite Deposit, Ivigtut, South Greenland....Pages 345-350 The Formation of Chromite and Titanomagnetite Deposits Within the Bushveld Igneous Complex....Pages 351-370 Aspects on the Gold Distribution in Some Greek Chromites....Pages 371-373 Ultramafic Rocks and Related Ore Minerals of Lapland, Northern Finland....Pages 374-386 Chromite and Graphite in the Platiniferous Dunite Pipes of the Eastern Bushveld....Pages 387-395 Peridotites and Serpentinites of the East Alps and the Origin of Their Enclosed Ore Minerals....Pages 396-404 Front Matter....Pages N3-N3 Strata-Bound Sulphides in the Early Archaean Isua Supracrustal Belt, West Greenland....Pages 405-412 Front Matter....Pages N3-N3 On the Hawleyite-Sphalerite-Wurtzite-Galena Paragenesis from Ragada, Komotini, (Rhodope) North Greece....Pages 413-417 Remobilization of Strata-Bound Scheelite Indicated by Tectonic, Textural and Crystallographic Features in Brejui Mine, NE Brazil....Pages 418-425 Uranium Occurrences of Bavaria, Germany (With Emphasis on the Bavarian Pfahl of the Altrandsberg District)....Pages 426-433 Some Features of Ore Fabric, Sasca Montana Skarn Deposit, Romania....Pages 434-441 Diagenetic Crystallisation and Migration in the Banded Iron Formations of Orissa, India....Pages 442-450 Iron Formations of Precambrian Age: Hematite-Magnetite Relationships in Some Proterozoic Iron Deposits — A Microscopic Observation....Pages 451-459 Thorium Concentrations in the Bodenmais, Bavaria, Sulphide Deposit....Pages 460-468 Petrography, Mineralogy and Genesis of the U-Ni Deposits Key Lake, Sask., Canada....Pages 469-490 Front Matter....Pages 491-491 Andean Metallogeny Related to the Tectonic and Petrologic Evolution of the Cordillera. Some Remarkable Points....Pages 493-507 Correlation of Strata-Bound Mineral Deposits in the Early Cretaceous Santa Metallotect of North and Central Peru....Pages 508-527 A Caldera of Neogene Age and Associated Hydrothermal Ore Formation, Ticapampa-Aija Mining District, Cordillera Negra, Department of Ancash, Peru....Pages 528-552 The Exhalative Sediments Linked to the Volcanic Exhalative Massive Sulphide Deposits: A Case Study of European Occurrences....Pages 553-564 Strata-Bound Ores of Spain: Newly Discovered Features and Their Interpretation....Pages 565-572 Silver and Associated Minerals in the Northwestern Odenwald, Germany....Pages 573-581 Late Variscan and Early Alpine Mineralization in the Eastern Alps....Pages 582-589 Radioactive Disequilibrium Studies in Uranium Occurrences of the Odenwald, West Germany....Pages 590-597 On the Alpidic Mineralization in Western Central Europe Outside the Alps....Pages 598-606 Ore Textures as Indicators of Formation Conditions of Mineral Paragenesis in Different Types of Stratiform Lead-Zinc Deposits....Pages 607-624 Constraints on the Genesis of Major Australian Lead-Zinc-Silver Deposits: from Ramdohr to Recent....Pages 625-636 Precambrian and Phanerozoic Massive Sulphide Deposits....Pages 637-643 Front Matter....Pages 491-491 Genesis of Uranium Deposits. An Appraisal of the Present State of Knowledge....Pages 644-654 Front Matter....Pages 655-655 A Topology of Mineralization and Its Meaning for Prospecting....Pages 657-666 Uniformitarianism and Ore Genesis....Pages 667-674 Front Matter....Pages 675-675 The Cu-Ni-S System and Low Temperature Mineral Assemblages....Pages 677-688 On the Crystal Chemistry of Some Thallium Sulphides and Sulphosalts....Pages 689-704 Microbiological Leaching of Tin Minerals by Thiobacillus Ferrooxidans and Organic Agents....Pages 705-725 A Contribution to the Stannite Problem....Pages 726-734 Front Matter....Pages 735-735 Crystallogenetic Disequilibrium in Ore Veins as Indicated by Hydrothermal Fluid Inclusions....Pages 737-741 Fluid Inclusions and Trace Element Content of Quartz and Pyrite Pebbles from Witwatersrand Conglomerates: Their Significance with Respect to the Genesis of Primary Deposits....Pages 742-752 The Nature and Significance of the Pleochroism of the Cassiterites of the Southeast Asian Tin Belt....Pages 753-759 New Observations on Ore Formation and Weathering of the Kamariza Deposit, Laurion, SE Attica (Greece)....Pages 760-767 Bravoite and Co-Ni-Bearing Marcasite and Their Zoning Relationships....Pages 768-772 Bismuth-Tellurium Associations: New Minerals of the Wehrlite-Pilsenite Assemblage from Hungary....Pages 773-783 Rutile of Postmagmatic Mineral Formation....Pages 784-793 Back Matter....Pages 795-806