Results 1 to 10 of about 43,321 (210)

Ab initio study of the elastic behavior of MgSiO3 ilmenite at high pressure [PDF]

open access: yes, 2002
We investigate the athermal high pressure behavior of the elastic properties of MgSiO3 ilmenite up to 30 GPa using the ab initio pseudopotential method. Our results at zero pressure are in good agreement with single-crystal elasticity measurements.
Da Silva, CRS   +3 more
core   +1 more source

Explorable and economically attractive mineral deposits in the Siberian and Far Eastern Federal Districts of Russia [PDF]

open access: yes, 2018
Purpose. Selection of the most explorable mineral deposits in the Siberian and Far Eastern Federal Districts of the Russian Federation as investment projects. Methods.
Boyarko, G
core   +1 more source

Overturn of ilmenite‐bearing cumulates in a rheologically weak lunar mantle [PDF]

open access: yes, 2019
©2019. American Geophysical UnionThe crystallization of the lunar magma ocean (LMO) determines the initial structure of the solid Moon. Near the end of the LMO crystallization, ilmenite‐bearing cumulates (IBC) form beneath the plagioclase crust.
Breuer, Doris   +5 more
core   +2 more sources

Effect of flow resistance in open rectangular channel [PDF]

open access: yes, 2016
The determination of flow resistance for open channels remains a challenge in practices. In this research, an experimental study was carried out to investigate the hydraulic roughness characteristics in an open channel.
Dini Mardhiyani, Dini Mardhiyani   +5 more
core   +3 more sources

The thermal equation of state of FeTiO_3 ilmenite based on in situ X-ray diffraction at high pressures and temperatures [PDF]

open access: yes, 2010
We present in situ measurements of the unit-cell volume of a natural terrestrial ilmenite (Jagersfontein mine, South Africa) and a synthetic reduced ilmenite (FeTiO_3) at simultaneous high pressure and high temperature up to 16 GPa and 1273 K.
Chen, B.   +10 more
core   +1 more source

Shock compression of ilmenite [PDF]

open access: yesJournal of Geophysical Research, 1976
Single- and reflected-shock compression measurements on single-crystal ilmenite (FeTiO_3) to pressures of 635 and 930 kbar, respectively, demonstrate anomalously large compressions above ∼320 kbar and imply the onset of one or more major phase changes at this pressure level which continue to occur to at least ∼600 kbar.
King, David A., Ahrens, Thomas J.
openaire   +3 more sources

Characterization of mesostasis regions in lunar basalts: Understanding late-stage melt evolution and its influence on apatite formation [PDF]

open access: yes, 2016
Recent studies geared toward understanding the volatile abundances of the lunar interior have focused on the volatile-bearing accessory mineral apatite.
Agrell   +47 more
core   +1 more source

Nano-ilmenite FeTiO3: Synthesis and characterization [PDF]

open access: yesJournal of Magnetism and Magnetic Materials, 2013
In general, ilmenite FeTiO3 is synthesized by solid-state reaction at very high pressure and high temperature. Synthesis of FeTiO3 is not an easy task as the Fe2þ ions are not stable. Therefore, it is really challenging to prepare this material. In this work nano-ilmenite FeTiO3 was synthesized by the sol–gel method.
Raghavender, A. T.   +7 more
openaire   +2 more sources

Abundance and Partitioning of OH in a High-pressure Magmatic System: Megacrysts from the Monastery Kimberlite, South Africa [PDF]

open access: yes, 2004
Concentrations of OH, and major and trace elements were determined in a suite of mantle-derived megacrysts that represent the crystallization products of a kimberlite-like magma at ~5 GPa and ~1400–1100°C.
Bell, David R.   +2 more
core   +1 more source

Method for producing oxygen from lunar materials [PDF]

open access: yes, 1993
This invention is related to producing oxygen from lunar or Martian materials, particularly from lunar ilmenite in situ. The process includes producing a slurry of the minerals and hot sulfuric acid, the acid and minerals reacting to form sulfates of the
Sullivan, Thomas A.
core   +1 more source

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