Titlebook: Geochemistry of Chromium in the Earth’s Mantle; Ekaterina A. Matrosova,Andrey V. Bobrov,Luca Bindi Book 2020 Springer Nature Switzerland A

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Experimental Study of Cr-Bearing Phases at High Pressures,antle. We selected two petrologically significant sections of the ternary diagram SiO.–MgO–Cr.O. for the experimental study: (1) the Mg.Si.O.–Mg.Cr.Si.O. system simulating the majorite–knorringite series of solid solutions in mantle garnets and the post-garnet phases with the ilmenite- and perovskit

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Structural Patterns of Cr-Bearing Phases and the Influence of Chromium on the Solid Solutions of thsystem, have been studied by means of single-crystal X-ray diffraction. For the selected phases (majorite-knorringite garnet, akimotoite, bridgmanite, MgCr.O. with calcium-titanate-type structure, Mg(Mg,Si,Cr).O. with distorted calcium-titanate structure, anhydrous phase B, olivine, wadsleyite and r

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Introduction,the interphase chromium component partitioning in the Earth’s mantle, we report our data on the experimental study of the SiO.–MgO–Cr.O. model system and related multicomponent systems at pressures and temperatures corresponding to a wide range of mantle conditions.

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Basics of Geochemistry and Mineralogy of Chromium, chromium-bearing phases in the Earth‘s mantle. Since chromite (Fe,Mg)(Cr,Al).O. containing up to ~55 wt% Cr.O. is the major ore mineral of chromium and is an accessory phase in many ultramafic rocks, the largest chromite deposits and the models of their formation are considered.

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