| Description |
1 online resource |
| Contents |
Front Cover; Processes and Ore Deposits of Ultramafic-Mafic Magmas through Space and Time; Copyright Page; Contents; List of Contributors; Acknowledgements; Introduction; 1 Global- to Deposit-Scale Controls on Orthomagmatic Ni-Cu( -PGE) and PGE Reef Ore Formation; 1.1 Introduction; 1.2 Deposits at a Glance; 1.2.1 Overview; 1.2.2 Key Elements of the Magmatic System; 1.2.2.1 Ni-Cu( -PGE) Deposits; 1.2.2.2 PGE Reef Deposits; 1.3 Lithospheric, Tectonic, and Geodynamic Setting: Continent to Craton Scale; 1.3.1 Lithospheric Resilience: Preservation Versus Genetic factors |
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1.3.2 Cratonic Address and the Importance of Craton Margins1.3.3 Continents and Their Margins; 1.3.4 Kinematic/Dynamic Factors; 1.3.4.1 Noril'sk Camp; 1.3.4.2 Voisey's Bay; 1.3.4.3 West Musgraves (Nebo-Babel); 1.3.4.4 High-MgO Versus Low-MgO (Ultramafic vs Mafic-Ultramafic); 1.3.5 Impact on Metallogeny: PGE-Rich Versus PGE-Poor; 1.4 General Model; 1.5 Deposit Temporal Distribution, the Supercontinent Cycle, and Dynamic Earth Model; 1.6 Exploration Summary; 1.6.1 Global; 1.6.2 Continental; 1.6.3 Regional; 1.6.4 Camp; 1.6.5 Deposit; 1.7 Summary: From Global to Local; Acknowledgements |
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AcknowledgementsReferences; 3 Metallic Ore Deposits Associated With Mafic to Ultramafic Igneous Rocks; 3.1 Introduction; 3.2 Deposit Types; 3.2.1 Ni-Cu-PGE Sulfide Deposits; 3.2.2 Low-Sulfide PGE-Rich Deposits; 3.2.3 Chromite Deposits; 3.2.4 Magnetite-Ilmenite Deposits; 3.3 Genetic Models of Ore Formation; 3.3.1 Sulfide-Rich Ni-Cu-PGE Deposits; 3.3.2 Sulfide-Poor PGE Reef-Type Deposits; 3.3.3 Chromite Deposits; 3.3.4 Magnetite-Ilmenite Deposits; 3.4 Tectonic Settings of Mafic Rock-Related Ore Deposits; 3.5 Metal Concentration Mechanisms; 3.6 Summary; References |
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4 Mixing and Unmixing in the Bushveld Complex Magma Chamber4.1 Introduction; 4.2 Geological Setting; 4.3 Source; 4.4 Emplacement and Mixing; 4.4.1 Identifying Magma Inputs: Isotopes; 4.4.2 Identifying Magma Inputs: Major Elements; 4.4.3 Dynamics of Magma Emplacement and Mixing; 4.5 Unmixing; 4.5.1 Sulfide Liquid Immiscibility; 4.5.2 Silicate Liquid Immiscibility; 4.6 Conclusions; References; Further Reading; 5 Secular Change of Chromite Concentration Processes From the Archean to the Phanerozoic; 5.1 Introduction; 5.2 Generation of Chromitites; 5.2.1 Stratiform Chromitites |
| Summary |
Processes and Ore Deposits of Ultramafic-Mafic Magmas through Space and Time focuses on the fundamental processes that control the formation of ore deposits from ultramafic-mafic magmas, covering chromite, platinum-group element (PGE), Ni-sulfides and Ti-V-bearing magnetite. The exploration, exploitation and use of these magmatic ores are important aspects of geology and directly linked to the global economy. Magmatic ores form from ultramafic-mafic magmas and crystallize at high-temperature after emplacement into crustal magma chambers, and are genetically linked to the evolution of the parental magmas through space and time. This book features recent developments in the field of magmatic ore deposits, and is an essential resource for both industry professionals and those in academia. Elucidates the relationships between tectonic settings and magmatic ore mineralizationProvides the links between magma generation in the mantle and ore mineralization at crustal levelsFeatures the latest research on changing patterns in magmatic ore mineralization through time and their bearing on the chemical evolution of the Earth's mantle |
| Bibliography |
Includes bibliographical references and index |
| Notes |
Vendor-supplied metadata |
| Subject |
Ore deposits.
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Magmatism.
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Ultrabasic rocks.
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Geochemistry.
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Petrology.
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geochemistry.
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petrology.
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NATURE -- Natural Resources.
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NATURE -- Rocks & Minerals.
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Geochemistry
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Magmatism
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Ore deposits
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Petrology
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Ultrabasic rocks
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| Form |
Electronic book
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| Author |
Mondal, Sisir K., editor
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Griffin, William L., editor
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| ISBN |
9780128111604 |
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0128111607 |
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