Results 11 to 20 of about 128,731 (297)

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

Yankuang 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, ZHANG Dexian, LOU Wei, HU Ziqi, LIU Jinbo   +4 more
doaj   +1 more source

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

, 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., Natelson, D., Shvets, I. V., Sofin, R. G. S.   +3 more
core   +1 more source

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

Jurnal 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

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

, 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, Hesse, Reinhard, Kirschvink, Joseph L., Kopp, Robert E., Lücken, Uwe, Raub, Timothy D., Rouiller, Isabelle, Schumann, Dirk, Sears, S. Kelly, Smirnov, Aleksey V., Tikoo, Sonia M., Vali, Hojatollah, Wu, Ting-Di   +12 more
core   +2 more sources

Single Crystalline Magnetite Nanotubes. [PDF]

ChemInform, 2004
AbstractFor Abstract see ChemInform Abstract in Full Text.
Zuqin, Liu, Daihua, Zhang, Song, Han, Chao, Li, Bo, Lei, Weigang, Lu, Jiye, Fang, Chongwu, Zhou   +7 more
openaire   +2 more sources

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

Geochemical 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

Mechanical Properties of Natural Chitosan/Hydroxyapatite/Magnetite Nanocomposites for Tissue Engineering Applications [PDF]

, 2016
Chitosan (CS), hydroxyapatite (HA), and magnetite (Fe3O4) have been broadly employed for bone treatment applications. Having a hybrid biomaterial composed of the aforementioned constituents not only accumulates the useful characteristics of each ...
Akao, Ang, Bahrololoom, Baradaran, Bazargan-Lari, Cai, Danilchenko, De Boer, Di Martino, Donadel, Ghaemy, Ghafari-Nazari, Grumezescu, Gupta, Heidari, Hong, Hu, Hu, Hu, Hu, Hutmacher, Khor, Kuo, Lee, Leukers, Li, Madihally, Mozafari, Nikpour, Pu, Rabiee, Razavi, Razavi, Razavi, Razavi, Razavi, Razavi, Rouhani, Sabnis, Salahinejad, Salahinejad, Salahinejad, Salahinejad, Spence, Teng, VandeVord, Verma, Wan, Wang, Wei, Wilson, Woodard, Xianmiao, Yazdimamaghani, Yazdimamaghani, Yazdimamaghani, Yazdimamaghani, Zhao   +57 more
core   +2 more sources

Electrical conductivity of magnetite‐bearing serpentinite during shear deformation

Geophysical 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, Takashi Yoshino, Ikuo Katayama   +2 more
doaj   +1 more source

An integrated study of the electrical parameters of the samples of magnetite ores in relation to their genesis and mineral composition (on the example of the Goroblagodatskoe skarn-magnetite deposit)

Известия высших учебных заведений: Геология и разведка, 2019
The temperature dependences of electrical resistance (at DC and AC voltage at 1 kHz frequency) of the samples of the magnetite ore and magnetite from the contact of the syenite-porphyry with the volcanic-sedimentary rocks from the Goroblagodatskoye iron ...
V. V. Bakhterev
doaj   +1 more source

Electronic and magnetic structure of epitaxial NiO/Fe$_3$O$_4$(001) heterostructures grown on MgO(001) and Nb-doped SrTiO$_3$(001) [PDF]

, 2016
We study the underlying chemical, electronic and magnetic properties of a number of magnetite based thin films. The main focus is placed onto NiO/Fe$_3$O$_4$(001) bilayers grown on MgO(001) and Nb-SrTiO$_3$(001) substrates.
Arenholz, E., Bartkowski, S., Gorgoi, M., Kuepper, K., Kuschel, O., Ovsyannikov, R., Pathe, N., Reiss, G., Schemme, T., Schmalhorst, J., Thomas, A., Wollschläger, J.   +11 more
core   +3 more sources