Results 21 to 30 of about 146,771 (344)

Changes in Magnetic Properties of Magnetite Nanoparticles Upon Microbial Iron Reduction

open access: yesGeochemistry, Geophysics, Geosystems, 2022
The magnetic signals of magnetite nanoparticles (NPs) preserved in rocks, soils, and sediments are effective index for paleoenvironmental reconstruction.
Pengcong Wang   +6 more
doaj   +1 more source

Discussion on Novel Measurement Method of Iron and Titanium in Vanadium Titanium Magnetite Beneficiation Process

open access: yesKuangchan zonghe liyong, 2023
This is an essay in the field of mineral processing engineering. Vanadium titanium magnetite is an important strategic resource in China. The traditional element measure method is difficult to directly answer the problems such as the promotion space of ...
Chao Chen   +4 more
doaj   +1 more source

In situ LA-ICP-MS Determination of Trace Elements in Magnetite from a Gypsum-Salt Bearing Iron Deposit and Geochemical Characteristics

open access: yesYankuang ceshi, 2022
BACKGROUND Gypsum-salt formation affects the oxygen fugacity of ore-forming fluid and changes the fluid composition, and then affects the trace element composition, which plays an important indicator role in the formation of iron ore deposits. Therefore,
HU Liang   +4 more
doaj   +1 more source

Phase transition in nanomagnetite [PDF]

open access: yes, 2008
Recently, the application of nanosized magnetite particles became an area of growing interest for their potential practical applications. Nanosized magnetite samples of 36 and 9 nm sizes were synthesized.
Cs. Fetzer   +8 more
core   +1 more source

Stability Improvement of Humic Acid as Sorbent through Magnetite and Chitin Modification

open access: yesJurnal Kimia Sains dan Aplikasi, 2020
Stability improvement of humic acid (HA) through modification of HA by chitin (HA-chitin) followed by a coating of HA-chitin on magnetite has been successfully performed.
Bambang Rusdiarso, Rahmat Basuki
doaj   +1 more source

Interplay of bulk and interface effects in the electric-field driven transition in magnetite [PDF]

open access: yes, 2009
Contact effects in devices incorporating strongly-correlated electronic materials are comparatively unexplored. We have investigated the electrically-driven phase transition in magnetite (100) thin films by four-terminal methods.
Fursina, A. A.   +3 more
core   +1 more source

Single Crystalline Magnetite Nanotubes. [PDF]

open access: yesChemInform, 2004
AbstractFor Abstract see ChemInform Abstract in Full Text.
Zuqin, Liu   +7 more
openaire   +2 more sources

Effect of Ni2+, Zn2+, and Co2+ on green rust transformation to magnetite

open access: yesGeochemical Transactions, 2022
In this study, we investigated Ni2+, Zn2+, and Co2+ mineralogical incorporation and its effect on green rust transformation to magnetite. Mineral transformation experiments were conducted by heating green rust suspensions at 85 °C in the presence of Ni2+,
Orion Farr, Evert J. Elzinga, Nathan Yee
doaj   +1 more source

Electrical conductivity of magnetite‐bearing serpentinite during shear deformation

open access: yesGeophysical Research Letters, 2012
Electrical conductivity of serpentinite with various amounts of magnetite was measured during shear deformation at high pressure and temperatures (P = 1.0 GPa, T = 750 K) corresponding to mantle wedge conditions to evaluate the contribution of aligned ...
Seiya Kawano   +2 more
doaj   +1 more source

Gigantism in unique biogenic magnetite at the Paleocene-Eocene Thermal Maximum [PDF]

open access: yes, 2008
We report the discovery of exceptionally large biogenic magnetite crystals in clay-rich sediments spanning the Paleocene-Eocene Thermal Maximum (PETM) in a borehole at Ancora, New Jersey. Aside from previously-described abundant bacterial magnetofossils,
Guerquin-Kern, Jean-Luc   +12 more
core   +2 more sources

Home - About - Disclaimer - Privacy