Results 71 to 80 of about 31,354 (260)
Platinum-bearing chromite layers are caused by pressure reduction during magma ascent
Nature Communications, 2018 Platinum-bearing chromitites in mafic-ultramafic intrusions such as the Bushveld Complex are key repositories of strategically important metals for human society.
R. Latypov +5 more
semanticscholar +1 more source
Reactivity of Low-Grade Chromite Concentrates towards Chlorinating Atmospheres
Materials, 2020 The most economically important iron-chromium bearing minerals is chromite. In natural deposits, iron(II) is frequently substituted by magnesium(II) while chromium(III) is replaced by aluminum(III) and/or iron(III) forming a complex chromium bearing ...
N. Kanari +5 more
semanticscholar +1 more source
Magnetic tests for magnetosome chains in Martian meteorite ALH84001 [PDF]
, 2004 Transmission electron microscopy studies have been used to argue that magnetite crystals in carbonate from Martian meteorite ALH84001 have a composition and morphology indistinguishable from that of magnetotactic bacteria.
Kim, Soon Sam +6 more
core +1 more source
Moon's volcanic history revealed in glassy spherules from Apollo 17 soil 76501
Meteoritics &Planetary Science, EarlyView.Abstract Rapidly quenched droplets of pyroclastically erupted lava are common in lunar regolith at landing sites proximal to the maria. Here, we document the U‐Pb chronologies, major element, and trace element compositions of picritic glassy particles from Apollo 17 regolith sample 76501. These particles are dominated by high‐Ti compositions similar to
Alexander A. Nemchin +9 more
wiley +1 more source
Deposition of Multicomponent Chromium Carbide Coatings Using a Non-Conventional Source of Chromium and Silicon with Micro-Additions of Boron [PDF]
Materials Research, 2017 The chromium carbide coatings are widely used in the mechanical industry due to its corrosion resistance and mechanical properties. In this work, we evaluated a new source of chromium and silicon with micro-additions of boron on the deposition of multi ...
Jesús Eduardo González Ruíz +3 more
doaj +1 more source
Drelów, the 13th and latest meteorite fall in Poland—A typical L6 chondrite with shock veins
Meteoritics &Planetary Science, EarlyView.Abstract On Tuesday, February 18, 2025, at 18:04:14 local time, residents of Poland observed a bright fireball registered by many Polish fireball stations belonging to the Skytinel Network established a few months before by Mateusz Żmija. Thus, the meteoroid's orbit, atmospheric trajectory, and the strewn field were calculated, and over 70 fragments ...
Addi Bischoff +18 more
wiley +1 more source
Kuwait Journal of ScienceChromite, a significant mineral for chromium, is extensively dispersed toward the southeast and east regions of Afghanistan, particularly in Logar Province.
doaj +1 more source
Electrochemical Corrosion of Lanthanum Chromite and Yttrium Chromite in Coal Slag [PDF]
, 1982 Lanthanum (La) chromites have long been considered as electrodes for magnetohydrodynamic (MHD) generator channels (1,2,3,4). These chromites when doped with divalent ions such as Ca, Mg or Sr have adequate electronic and electrical conductivity and have melting points >2500 K (2).
Marchant, D.D., Bates, J.L.
openaire +1 more source
High performance ammonium nitrate propellant [PDF]
, 1979 A high performance propellant having greatly reduced hydrogen chloride emission is presented. It is comprised of: (1) a minor amount of hydrocarbon binder (10-15%), (2) at least 85% solids including ammonium nitrate as the primary oxidizer (about 40% to ...
Anderson, F. A.
core +1 more source
西南日本の熱変成超苦鉄質岩体中のかんらん石と輝石の組成変化に関する覚書 [PDF]
, 2010 This short article presents some diagrams showing the compositional variations of primary and metamorphic olivine, orthopyroxene and clinopyroxene in peridotites and serpentinites from thermally metamorphosed ultramafic complexes in SW Japan. In contrast
Nozaka, Toshio
core +1 more source