Large areas of shongly magnetized crust are located inTerra Cimmeria and Terra Sirenum, in the south ern hiehlands of Mars. the older terrains on the rilanet The tvuical deuth to the base of the maenetized crustal eeotherms consistent with a orevious estimation o í the effective elastic thickness of the Iitho sphere, and with crustal abundanres of heat-producing elements based on swfare measure...

One timeless challenge in rock magnetic studies, inclusive of paleomagnetism and environmental magnetism, is decomposing a sample’s bulk magnetic behavior into its individual magnetic mineral components. We present a method permitting to decompose the magnetic behavior of a bulk sample experimentally and at low temperature avoiding any ambiguities in data interpretation due to heating-induced a...

In this paper, we successfully synthesize Fe(OH)(3) nanotubes involving the Kirkendall effect. Depending on the calcination conditions, both haematite and magnetite nanotubes are produced. This approach also provides a new synthetic alternative to nanotubes of nonlamellar-structured materials. The as-synthesized magnetite nanotubes have an application as a magnetic resonance imaging contrast ag...

The Southeast Missouri Iron Metallogenic Province in the Midcontinent USA contains seven major and several minor IOA/IOCG-type deposits a series of shallow vein-type deposits/prospects, all which are spatially temporally associated with early Mesoproterozoic (1500–1440 Ma) magmatism St. Francois Mountains terrane. One is Shepherd Mountain deposit, consists two northeast-trending ore veins domin...

In this research, Effect of thermal treatment on beneficiation of low-grade laterite nickel by calcination-magnetic separation method was studied. In order to determine the components and elements of the sample, to recognize the main and minor minerals and their bond, and phase transformation caused by thermal treatment, Chemical analysis (XRF and ICP), microscopic studies and XRD analysis ...

different samples have been prepared from different products in chadormalu iron ore concentrator plant: low intensity magnetite separators concentrate (magnetite concentrate), reverse flotation tail (final hematite concentrate), flotation concentrate (apatite concentrate), final tail (l.i.m.s. tail + reverse flotation concentrate+ apatite flotation tail). the samples were used for rare earth el...

The presence of Ca-ferrite and silico-ferrite-of-calcium-and-aluminium (SFCA) bonding phases is thought to be crucial maintain sinter quality due their high reducibility strength levels. However, new evidence suggests that porosity might an equally important factor controlling reducibility, in addition mineralogy. This work aims fundamentally understand the development simple analogues from Fe2...

The kinetics of Fe2O3→FeO reaction was investigated. The thermogravimetric (TGA) data covered the reduction of hematite both by pure species (nitrogen diluted CO or H2) and by their mixture. The conventional analysis has indicated that initially the reduction of hematite is a complex, surface controlled process, however once a thin layer of lower oxidation state iron oxides (magnetite, wüstite)...

Iron fatty acid complexes (IFACs) are prepared via the dissolution of porous hematite powder in hot unsaturated fatty acid. The IFACs are then decomposed in five different organic solvents under reflux conditions in the presence of the respective fatty acid. The XRD analysis results indicate that the resulting NPs comprise a mixture of wustite, magnetite, and maghemite phases. The solvents with...