Chromium: Its Physicochemical Behavior and Petrologic Significance
Papers from a Carnegie Institution of Washington Conference, Geophysical Laboratory
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Chromium: Its Physicochemical Behavior and Petrologic Significance
Papers from a Carnegie Institution of Washington Conference, Geophysical Laboratory
About This Book
Chromium: Its Physicochemical Behavior and Petrologic Significance is a collection of papers presented at an interdisciplinary conference on the physicochemical behavior and petrologic significance of chromium, held at the Geophysical Laboratory of the Carnegie Institution of Washington on January 7-8, 1974. Contributors explore the physicochemical behavior and petrologic significance of chromium and cover a wide range of topics, including the mineralogy of chromium and thermochemistry of chromium compounds. Comprised of 23 chapters, this book begins with a discussion on phase relations in chromium oxide-containing systems at elevated temperatures, followed by an analysis of the chromium-oxygen system at high oxygen pressures. Subsequent chapters focus on crystal field effects in chromium and its partitioning in the mantle; trivalent and divalent chromium ions in spinels; distribution and significance of chromium in meteorites; and chrome-spinel in progressive metamorphism. The paragenesis of zoned chromite from central Manitoba is also considered, along with postcumulus and subsolidus equilibration of chromite and coexisting silicates in the Eastern Bush veld Complex. The final chapter presents a hypothesis of origin for podiform chromite deposits. This monograph will be of interest to physicists, chemists, and geologists.
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Table of contents
- Front Cover
- Chromium: Its Physicochemical Behavior and Petrologic Significance
- Copyright Page
- Table of Contents
- FOREWORD
- Chapter 1. Phase relations in chromium oxide-containing systems at elevated temperatures
- Chapter 2. The system chromiumâoxygen at high oxygen pressures
- Chapter 3. Thermochemistry of chromium compounds, especially oxides at high temperature
- Chapter 4. Solid oxide electrolyte emf cell determination of the standard free energy of Cr2O3 and applications to chromium-bearing mineral systems
- Chapter 5. Preparation of Cr2O3 crucibles and the defect structure of Cr2O3
- Chapter 6. Smelting chrome ore
- Chapter 7. Crystal field effects in chromium and its partitioning in the mantle
- Chapter 8. Crystal-field effects in spinel: oxidation states oĂŽ iron and chromium
- Chapter 9. Trivalent and divalent chromium ions in spinels
- Chapter 10. Magnetic properties of chromium chalcogenide spinels
- Chapter 11. Magnetochemical characterization of Fe(FexCr2_x)O4 spinels
- Chapter 12. Mineralogy of chromium
- Chapter 13. Distribution and significance of chromium in meteorites
- Chapter 14. Chromium and the genesis of diamond
- Chapter 15. Chromite spinels from ultramafic xenoliths
- Chapter 16. Coexisting spinel and silicates in alpine peridotites of the granulite facies
- Chapter 17. Chrome-spinel in progressive metamorphismâ a preliminary analysis
- Chapter 18. The paragenesis of zoned chromite from central Manitoba
- Chapter 19. Crystallization sequences in the Muskox intrusion and other layered intrusionsâII. Origin of chromitite layers and similar deposits of other magmatic ores
- Chapter 20. Postcumulus and subsolidus equilibration of chromite and coexisting silicates in the Eastern Bushveld Complex
- Chapter 21. Reaction trends shown by chrome-spinels of the Rhum layered intrusion
- Chapter 22. A comparison of chrome-spinels in ophiolites and mantle diapirs oĂŽ Newfoundland
- Chapter 23. A hypothesis of origin for podiform chromite deposits