Add to ORKGThe redox conditions prevailing during the formation of vanadiferous titanomagnetites from three layered intrusions (Bushveld; Koillismaa; Skaergaard) have been estimated from the valence state of vanadium using synchrotron X-ray absorption near edge structure spectroscopy (XANES). Using a high energy-resolution X-ray emission spectrometer, we show that vanadium occurs mostly as V3+, with minor V4+. The most concentrated samples (up to 2.4 wt% V2O3) contain approximately 10% of vanadium as V4+. Both V3+ and V4+ occur in the octahedral site of the spinel structure. Considering the low magnetite/melt V4+ partition coefÞ cients, this suggests that vanadium ores crystallized under speciÞ c oxidizing conditions
Vanadium has multiple oxidation states in silicate melts and minerals, a property that also promotes...
Both oxide and sulphide minerals occur in opaque minerals of the gabbro-anorthosite complex of Masan...
Summary. A hypothesis for the mechanism of oxidation in titanomagnetites is first put forward on the...
The redox conditions prevailing during the formation of vanadiferous titanomagnetites from three lay...
The redox conditions prevailing during the formation of vanadiferous titanomagnetites from three lay...
The aim of this thesis is the investigation of the spectroscopic properties and the electronic struc...
The oxidation state of vanadium in natural and synthetic Fe-Ti oxides is determined using high-energ...
The following geochemical rules-of-thumb seem to hold for vanadium: 1. (1) Magnetites as a group...
The commercialisation of vanadium redox flow batteries for large scale electric energy storage and p...
A systematic investigation of the exsolution textures in titanomagnetite grains of massive magnetite...
The oxidation kinetics, structural changes, and elements migration during the oxidation process of...
The main magnetite seam of the Upper Zone of the Rustenburg Layered Suite (SACS, 1980) on the Bushve...
In this study, the carbothermic reduction and nitridation mechanism of vanadium-bearing titanomagnet...
International audienceThis paper presents a comparison between several methods dedicated to the inte...
Vanadium has multiple oxidation states in silicate melts and minerals, a property that also promotes...
Vanadium has multiple oxidation states in silicate melts and minerals, a property that also promotes...
Both oxide and sulphide minerals occur in opaque minerals of the gabbro-anorthosite complex of Masan...
Summary. A hypothesis for the mechanism of oxidation in titanomagnetites is first put forward on the...
The redox conditions prevailing during the formation of vanadiferous titanomagnetites from three lay...
The redox conditions prevailing during the formation of vanadiferous titanomagnetites from three lay...
The aim of this thesis is the investigation of the spectroscopic properties and the electronic struc...
The oxidation state of vanadium in natural and synthetic Fe-Ti oxides is determined using high-energ...
The following geochemical rules-of-thumb seem to hold for vanadium: 1. (1) Magnetites as a group...
The commercialisation of vanadium redox flow batteries for large scale electric energy storage and p...
A systematic investigation of the exsolution textures in titanomagnetite grains of massive magnetite...
The oxidation kinetics, structural changes, and elements migration during the oxidation process of...
The main magnetite seam of the Upper Zone of the Rustenburg Layered Suite (SACS, 1980) on the Bushve...
In this study, the carbothermic reduction and nitridation mechanism of vanadium-bearing titanomagnet...
International audienceThis paper presents a comparison between several methods dedicated to the inte...
Vanadium has multiple oxidation states in silicate melts and minerals, a property that also promotes...
Vanadium has multiple oxidation states in silicate melts and minerals, a property that also promotes...
Both oxide and sulphide minerals occur in opaque minerals of the gabbro-anorthosite complex of Masan...
Summary. A hypothesis for the mechanism of oxidation in titanomagnetites is first put forward on the...