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Magnetite lamellae in olivine and clinohumite from Dabie UHP ultramafic rocks, central China
Ultrahigh-pressure rocks olivine and clinohumite central China
2012/3/31
Ultrahigh-pressure (UHP) minerals of the Maowu mafic-ultramafic complex in the Dabieshan,
east-central China exhibit many exsolution textures. Magnetite lamellae are common in olivines and
Ti clinoh...
Formation of single-domain magnetite by a thermophilic bacterium
Formation single-domain magnetite bacterium
2012/4/1
Magnetite is a common product of bacterial iron reduction and may serve as a potential physical indicator of biological activity in geological settings. Here we report the formation of single-domain m...
Magnetite from magnetotactic bacteria: Size distributions and twinning
Magnetite magnetotactic bacteria Size distributions twinning
2012/4/1
We studied intracellular magnetite particles produced by several morphological types of magnetotactic bacteria including the spirillar (helical) freshwater species,Magnetospirillum magnetotacticum,and...
Equilibria among titanite, hedenbergite, fayalite, quartz, ilmenite, and magnetite: Experiments and internally consistent thermodynamic data for titanite
hedenbergite fayalite magnetite thermodynamic data titanite
2012/3/31
For iron-rich compositions, reactions among titanite, clinopyroxene, olivine, quartz,magnetite, and ilmenite can constrain the conditions under which common rocks form.Phase equilibrium experiments in...
Interaction between exsolution microstructures and magnetic properties of the magnetite-spinel solid solution
Interaction exsolution microstructures magnetic properties magnetite-spinel solid solution
2012/4/1
Magnetic properties of exsolved samples of the (Fe304t(MgAlz04),_x solid solution weremeasured over the temperature range 4-923 K and were correlated with microstructuresobserved by transmission elect...
Reinvestigation of the annite = sanidine + magnetite + H2 reaction using the 僅2-sensor technique
Reinvestigation annite = sanidine + magnetite + H2 僅2-sensor technique
2012/4/5
Thedecomposition ofthe iron mica,annite, to sanidine plus magnetiteand vapor,KFe3AlSi301O(OH)2=KAlSi30g+Fe304+Hz,hasbeenreexamined experimentally with
theuseofavarietyofbufferscoupledwithfH2 sensorsa...
Magnetic properties of the magnetite-spinel solid solution: Curie temperatures, magnetic susceptibilities, and cation ordering
Magnetic properties magnetite-spinel solid solution Curie temperatures magnetic susceptibilities cation ordering
2012/4/5
Curietemperatures (Td ofthe (Fe304)x(MgA1204)1-xsolid solution have been deter-minedfrom measurementsofmagneticsusceptibility (x)vs.temperature. Thetrend in Te
vs.composition extrapolates to 0Katx =0...
Influence of Nonstoichiometry and the Presence of Maghemite on the Mossbauer Spectrum of Magnetite
Magnetite Mossbauer effect Nonstoichiometric magnetite
2011/12/28
Several samples of large- and small-particle magnetite (Fe3O4), as well as its thermal decomposition products formed at different temperatures and atmospheres, have been studied extensively by Mö...
The Influence of Aluminum on Iron Oxides: XIV. Al-Substituted Magnetite Synthesized at Ambient Temperatures
Aluminum Goethite Iron oxide Magnetite Mossbauer spectroscopy X-ray powder diffraction
2012/1/4
Mixtures of magnetite and goethite were formed by the slow oxidation of mixed FeCl2-AlCl3 solutions in an alkaline environment at room temperature. The compositions of the products ranged from almost ...
Influence of Chloride on the Formation of Iron Oxides from Fe(II) Chloride. I. Effect of [Cl]/[Fe] on the Formation of Magnetite
Akaganeite Chloride Green rust Iron Lepidocrocite Maghemite Magnetite Synthesis
2012/2/3
The formation of fine-grained magnetite (∼0.1 µm) at pH 7 and 25°C from aeration of Fe(II) chloride solutions is presented. The magnetite converted at 105°C to maghemite with poorly develo...