Chromium: Its Physicochemical Behavior and Petrologic Significance

Chromium: Its Physicochemical Behavior and Petrologic Significance

Papers from a Carnegie Institution of Washington Conference, Geophysical Laboratory

1st Edition - January 1, 1976

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  • Editor: T. N. Irvine
  • eBook ISBN: 9781483187761

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Description

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.

Table of Contents


  • Foreword

    Phase Relations in Chromium Oxide-Containing Systems at Elevated Temperatures

    The System Chromium-Oxygen at High Oxygen Pressures

    Thermochemistry of Chromium Compounds, Especially Oxides at High Temperature

    Solid Oxide Electrolyte Emf Cell Determination of the Standard Free Energy of Cr2O3 and Applications to Chromiumbearing

    Mineral Systems

    Preparation of Cr2O3 Crucibles and the Defect Structure of Cr2O3

    Smelting Chrome Ore

    Crystal Field Effects in Chromium and its Partitioning in the Mantle

    Crystal-Field Effects in Spinel: Oxidation States of Iron and Chromium

    Trivalent and Divalent Chromium Ions in Spinels

    Magnetic Properties of Chromium Chalcogenide Spinels

    Magnetochemical Characterization of Fe(FexCr2—x)O4 Spinels

    Mineralogy of Chromium

    Distribution and Significance of Chromium in Meteorites

    Chromium and the Genesis of Diamond

    Chromite Spinels from Ultramafic Xenoliths

    Coexisting Spinel and Silicates in Alpine Peridotites of the Granulite Facies

    Chrome-Spinel in Progressive Metamorphism—a Preliminary Analysis

    The Paragenesis of Zoned Chromite from Central Manitoba

    Crystallization Sequences in the Muskox Intrusion and Other Layered Intrusions—II. Origin of Chromitite Layers and Similar Deposits of Other Magmatic Ores

    Postcumulus and Subsolidus Equilibration of Chromite and Coexisting Silicates in the Eastern Bushveld Complex

    Reaction Trends Shown by Chrome-Spinels of the Rhum Layered Intrusion

    A comparison of Chrome-Spinels in Ophiolites and Mantle Diapirs of Newfoundland

    A Hypothesis of Origin for Podiform Chromite Deposits

Product details

  • No. of pages: 299
  • Language: English
  • Copyright: © Pergamon 1976
  • Published: January 1, 1976
  • Imprint: Pergamon
  • eBook ISBN: 9781483187761

About the Editor

T. N. Irvine

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