Processes and ore deposits of ultramafic-mafic magmas through space and time /

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, exploit...

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Detalles Bibliográficos
Clasificación:Libro Electrónico
Otros Autores: Mondal, Sisir K. (Editor ), Griffin, William L. (Editor )
Formato: Electrónico eBook
Idioma:Inglés
Publicado: Kidlington, Oxford, United Kingdom ; Cambridge, MA : Elsevier, [2018]
Temas:
Ore deposits.
Magmatism.
Ultrabasic rocks.
Geochemistry.
Petrology.
G�ites min�eraux.
Magmatisme.
Roches ultrabasiques.
G�eochimie.
P�etrologie.
geochemistry.
petrology.
NATURE > Natural Resources.
NATURE > Rocks & Minerals.
Acceso en línea:Texto completo
Tabla de Contenidos:
  • 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.
  • 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.
  • 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.
  • 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.

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