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Geochemistry of Chromium in the Earth's Mantle

Geochemistry of Chromium in the Earth's Mantle

Autorzy
Wydawnictwo Springer Nature Customer Service Center GmbH
Data wydania 01/09/2019
Wydanie Pierwsze
Liczba stron 128
Forma publikacji książka w twardej oprawie
Poziom zaawansowania Dla profesjonalistów, specjalistów i badaczy naukowych
Język angielski
ISBN 9783030270179
Kategorie Geofizyka, Minerałoznawstwo , Geochemia
228.00 182.40 PLN
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$46.65 / €43.02 / £35.79 /
Rabat: 20%
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Dostawa 14 dni
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Opis książki

This book provides an analysis of an actual problem of the evolution of deep matter under the conditions of the upper mantle, transition zone, and uppermost lower mantle. This issue has a fundamental importance in geochemistry, petrology, mineralogy, and crystalochemistry of the mantle, at different depths. The authors discuss new experimental research on the composition and conditions of the chromium-bearing minerals genesis and their associations in the Earth's mantle. The experimental data are compared with the natural mineral assemblages, allowing a refinement of the structure and composition of the deep Geospheres of the Earth. The results of the physicochemical experiments in the "MgO-SiO2-Cr2O3" model and the multicomponent systems play a major role in understanding the phase diagrams of these systems, the structural patterns of chromium-bearing phases and the influence of Cr on P-T parameters in the Earth's mantle.

Geochemistry of Chromium in the Earth's Mantle

Spis treści

INTRODUCTION
PART I. Chromium and chromium-bearing phases in the Earth Chapter 1.1. High-pressure Cr-bearing phases in the Earth's mantle 1.1.1. (Mg,Fe)Cr2O4 polymorphs 1.1.2. Majoritic and knorringitic garnets 1.1.3. Clinopyroxenes 1.1.4. (Mg,Fe)2SiO4 polymorphs 1.1.5. (Mg,Fe)SiO3 polymorphs 1.1.6. Other Cr-bearing phases in the Earth's mantle Chapter 1.2. Cr-rich rocks and mechanisms of Cr concentration in the Earth's mantle
PART II. Experimental study of Cr-bearing phases at high pressures Chapter 2.1. Experimental and analytical techniques 2.1.1. Multi-anvil apparatus 2.1.2. Toroidal ("anvil-with-hole") apparatus 2.1.3. Analytical procedure Chapter 2.2. Review of the experimental data 2.2.1. Systems with high-pressure components of garnets 2.2.2. Influence of Cr and other minor elements on Mg2SiO4 polymorphs Chapter 2.3. Experimental study of the model system SiO2-MgO-Cr2O3 at high P-T parameters 2.3.1. Mg4Si4O12-Mg3Cr2Si3O12 section at 10-24 GPa and 1600 C Phase relations Compositions of the phases Topology and phase diagram of the Mg4Si4O12-Mg3Cr2Si3O12 psedo-section 2.3.2. Mg2SiO4-MgCr2O4 section at 10-24 GPa and 1600 C Phase relations Compositions of the phases Topology and phase diagram of the Mg2SiO4-MgCr2O4 psedo-section Chapter 2.4. Experimental study of multicomponent systems with Cr-bearing phases at high P-T parameters 2.4.1. Influence of minor Al concentrations on crystallization of garnet in the majorite-knorringite system 2.4.2. Crystallization of knorringitic garnet in the pyrolite system Chapter 2.5. Structural patterns of Cr-bearing phases
PART III. Implication of experimental results to geochemistry of Cr in the Earth's mantle Chapter 3.1. Mineral hosts for Cr Chapter 3.2. Influence of Cr on structural pattern of the major mantle phases

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