Study of iron-bearing phases in ordinary and carbonaceous chondrites as well as iron meteorite and extracted iron-nickel phosphides by Mossbauer spectroscopy with improved velocity resolution (measurement in 4096 channels, presentation in 1024 channels) demonstrated new results which were not obtained from Mossbauer spectra measured in 512 channels or less. Fitting of the iron meteorite Mossbauer spectrum measured for the first time with presentation in 4096 channels showed new details probably related to the complicated phase composition.
The unique meteorite bencubbinite Isheyevo CH/CB which was recently found in Bashkortostan, Russia was studied using Mössbauer spectroscopy with high velocity resolution. Mössbauer hyperfine parameters of metal in Isheyevo CH/CB external and internal regions demonstrated the presence of three phases such as martensite α 2 -Fe(Ni,Co), kamacite α-Fe(Ni,Co) and disordered taenite γ-Fe(Ni,Co).
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