Kimberlites, Orangeites, and Related Rocks

1. Kimberlites and Orangeites.- 1.1. Etymology of Group I and II Kimberlites.- 1.2. Definitions of Cryptogenic and Primary Phases.- 1.3. The Hybrid Nature of Kimberlites and Orangeites.- 1.4. Philosophy and Principles of Classification.- 1.5. Mineralogical Comparisons between Kimberlites and Orangeites.- 1.6. Definitions of Orangeites and Kimberlites.- 1.7. Age and Distribution of Orangeites.- 1.8. Occurrences of Orangeites.- 1.9. Textural—Genetic Classifications of Petrological Clans….- 1.10. Petrographic Characteristics of Orangeite.- 1.11. Petrographic Differences with Respect to Kimberlites.- 1.12. Petrographic Differences with Respect to Lamproites.- 2. Mineralogy of Orangeites.- 2.1. Mica.- 2.2. Clinopyroxene.- 2.3. Olivine.- 2.4. Spinel.- 2.6. Perovskite.- 2.7. Phosphates.- 2.8. Amphiboles—Potassium Richterite.- 2.9. Potassium Feldspar.- 2.10. Ilmenite.- 2.11. Rutile.- 2.13. Carbonates.- 2.14. Other Minerals.- 2.15. Summary.- 3. Geochemistry of Orangeites.- 3.1. Contamination and Alteration.- 3.2. Primary Magma Compositions.- 3.3. Major Element Geochemistry.- 3.4. First-Period Transition Elements.- 3.5. Incompatible Elements.- 3.6. Inter-Element Relationships.- 3.7. Peridotite Mixing and Assimilation.- 3.8. Radiogenic Isotopes.- 3.9. Stable Isotopes.- 3.10. Summary.- 4. Petrogenesis of Orangeites and Kimberlites.- 4.1. Geochemical Models of Orangeite Petrogenesis Involving Limited Partial Melting of Lherzolitic Sources.- 4.2. Experimental Evidence Pertaining to Orangeite Petrogenesis.- 4.3. Petrogenesis of Archetypal Kimberlites—Recent Hypotheses...- 4.4. Geodynamic Models of Kimberlite and Orangeite Genesis.- 4.5. Petrogenesis of the Orangeite Clan.- 4.6. Petrogenesis of the Kimberlite Clan.- 4.7. Relationships of Orangeites to Kimberlites, Lamproites,and Other Ultrapotassic Magmas.- 4.8. Primary Diamond Deposits.- Postscript.- References.

`Superb...Mitchell has clearly established himself as an authority in his field. He writes with admirable clarity and his mastery of the literature of this vast subject is both encylopaedic and discerning ... [This book] is an outstanding good contribution to petrology.'
Geological Magazine