Nickel Sulfide Ores and impact melts / / Peter C. Lightfoot, Vale Base Metals Ontario, Canada

• Autore: Lightfoot Peter C.
• Pubblicazione: Amsterdam, Netherlands : , : Elsevier, , 2017; ©2017
• Descrizione fisica: 1 online resource (696 p.)
• Disciplina: 549.32
• Soggetto topico: Nickel ores
• Note generali: Description based upon print version of record.
• Nota di bibliografia: Includes bibliographical references.
• Nota di contenuto: Cover; Title Page; Copyright Page; Dedication; Contents; Preface; Acknowledgments; Chapter 1 - Sudbury - an introduction to the ore deposits and the impact structure; Introduction to Sudbury; History of discovery and production at Sudbury; Position of the Sudbury Camp as a future producer of nickel; The geology of Sudbury in a nutshell; Terminology used to describe the geology of the Sudbury structure; The Igneous Rocks; The Target Country Rocks; Sudbury geology at the center of important Earth Science debates; Fundamental igneous petrology; Origin of the ore deposits ; The catastrophy that created the Sudbury rocksThe deep structure and deformation history of the SIC; Attempts to reconcile impact models with igneous processes; The impact process and the formation of the sulfide ores; Where do all the metals and sulfur in the ores come from?; Magmatic nickel sulfides - an introduction and overview; Process controls in the formation of magmatic sulfide ore deposits; Melting of the mantle; Migration of the magmas through the crust, and magmatic differentiation; Triggers to sulfur saturation of mafic magmas ; The Importance of gravity-assisted settling of dense magmatic sulfide, and pathways through the crustControls on the composition of sulfide magmas; Sulfide localization and concentration mechanisms in "container rocks"; Sulfide differentiation; Post magmatic deformation, metamorphism, and hydrothermal modification of sulfide mineralization; Evidence for impact origin of Sudbury; Compelling evidence for an impact event; Supporting evidence for an impact event; Some features not resolved by the Sudbury Impact Model; Synthesis of the approach used in this book ; Appendix 1.1 Synthesis of Sudbury BibliographyChapter 2 - A Synthesis of the Geology of the Sudbury Structure; Introduction; An Impact Event at the Southern Margin of the Superior Province Craton; An overview of the Regional Geological Setting of the Sudbury Structure; Geology of the Sudbury Structure; The target country rocks; Archean granitoid rocks and gneisses of the Superior Province; Huronian Supergroup metavolcanic and metasedimentary rocks; Mafic and ultramafic intrusive rocks in the Sudbury Region; Early Proterozoic East Bull Lake Type Intrusions; The Nipissing Diabase ; Sudbury Gabbro IntrusionsFelsic Intrusive Rocks in the Sudbury Region; Geology of the SIC; The Main Mass; The Geology of the North and East Range of the Main Mass; The Geology of the South Range of the Main Mass; Felsic Enclaves within the Norite Stratigraphy of the Main Mass in the South Range; Synthesis of the Geology of the Main Mass; The Offset Dykes; The Radial Offset Dykes; The Concentric Offset Dykes; The Discontinuous Segmented Offset Dykes; Comparative Geology of the Offset Dykes; The Contact of the Offset Dykes with the Country Rocks; Thickness and Continuity of the Offset Dykes ; Branching of the Offset Dykes
• Titolo autorizzato: Nickel Sulfide Ores and impact melts
• ISBN: 0-12-804105-6
• Formato: Materiale a stampa
• Livello bibliografico: Monografia
• Lingua di pubblicazione: Inglese
• Record Nr.: 9910583049903321
• Lo trovi qui: Univ. Federico II