Results 21 to 30 of about 104,611 (276)
Direct Formation of Hard‐Magnetic Tetrataenite in Bulk Alloy Castings
Advanced Science, 2023 Currently, predominant high‐performance permanent magnets contain rare‐earth elements. In the search for rare‐earth‐free alternates, body‐centered tetragonal Fe–Ni is notable.
Yurii P. Ivanov +4 more
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High pressure minerals in the Château-Renard (L6) ordinary chondrite: implications for collisions on its parent body [PDF]
, 2018 We report the first discoveries of high-pressure minerals in the historical L6 chondrite fall Château-Renard, based on co-located Raman spectroscopy, scanning electron microscopy (SEM) with energy-dispersive X-ray spectroscopy and electron backscatter ...
Anand, Mahesh +7 more
core +2 more sources
New carbonaceous chondrite Northwest Africa 11781 (CM2)
Литосфера, 2019 Research subject. The article presents the results of a study of a new meteorite Northwest Africa 11781.Material and methods. The material for the study was a fragment of a meteorite weighing 15.56 g, from which 4 transparent polished sections with a ...
K. A. Dugushkina, S. V. Berzin
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Meteorite Struga – overview of previous chemical and recent spectroscopic analyses
Macedonian Journal of Chemistry and Chemical Engineering, 2009 Meteorite Struga fell more than 35 years ago near the town of Struga, Republic of Macedonia. Its fall was notified in the Bulletien of the Geological Institute in Skopje in 1973. Since that time, only one chemical analysis has been reported (in 1990) and
Biljana Minčeva-Šukarova
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A large planetary body inferred from diamond inclusions in a ureilite meteorite
Nature Communications, 2018 Planetary formation models show that terrestrial planets are formed by the accretion of tens of Moon- to Mars-sized planetary embryos through energetic giant impacts. However, relics of these large proto-planets are yet to be found.
F. Nabiei +8 more
semanticscholar +1 more source
The origin of alteration “orangettes” in Dhofar 019: Implications for the age and aqueous history of the shergottites [PDF]
, 2017 The shergottites are the largest group of Martian meteorites, and the only group that has not been found to contain definitive evidence of Martian aqueous alteration.
Hallis, L.J. +3 more
core +1 more source
Nature Communications, 2016 The cause of the end-Cretaceous (KPg) mass extinction is still debated due to difficulty separating the influences of two closely timed potential causal events: eruption of the Deccan Traps volcanic province and impact of the Chicxulub meteorite. Here we
S. Petersen, A. Dutton, K. C. Lohmann
semanticscholar +1 more source
The Okhansk Meteorite: Specifics of Composition, Structure, and Genesis [PDF]
Учёные записки Казанского университета: Серия Естественные науки, 2016 The Okhansk meteorite fell on August 18, 1887 near the village of Tabor, about 15 km away from the town of Okhansk in Perm province and weighed 186.5 kg (the total weight of collected fragments, according to P.I. Krotov, was more than 245 kg).
A.I. Bakhtin +3 more
doaj
Crystals, 2020 Stanfieldite, natural Ca-Mg-phosphate, is a typical constituent of phosphate-phosphide assemblages in pallasite and mesosiderite meteorites. The synthetic analogue of stanfieldite is used as a crystal matrix of luminophores and frequently encountered in ...
Sergey N. Britvin +3 more
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Spectral properties of the largest asteroids associated with Taurid Complex [PDF]
, 2014 We obtained spectra of six of the largest asteroids (2201, 4183, 4486, 5143, 6063, and 269690) associated with Taurid complex. The observations were made with the IRTF telescope equipped with the spectro-imager SpeX.
Birlan, M. +4 more
core +2 more sources