Characterization of the matrix and fusion crust of the recent meteorite fall Ozerki L6

A. A. Maksimova; E. V. Petrova; A. V. Chukin; M. S. Karabanalov; I. Felner; M. Gritsevich; M. I. Oshtrakh

doi:10.1111/maps.13423

Characterization of the matrix and fusion crust of the recent meteorite fall Ozerki L6

A. A. Maksimova, E. V. Petrova, A. V. Chukin, M. S. Karabanalov, I. Felner, M. Gritsevich, M. I. Oshtrakh^*

^*Corresponding author for this work

Racah Institute of Physics

Research output: Contribution to journal › Article › peer-review

24 Scopus citations

Abstract

We studied the interior and the fusion crust of the recently recovered Ozerki L6 meteorite using optical microscopy, scanning electron microscopy (SEM) with energy dispersive spectroscopy, X-ray diffraction (XRD), magnetization measurements, and Mössbauer spectroscopy. The phase composition of the interior and of the fusion crust was determined by means of SEM, XRD, and Mössbauer spectroscopy. The unit cell parameters for silicate crystals were evaluated from the X-ray diffractograms and were found the same for the interior and the fusion crust. Magnetization measurements revealed a decrease of the saturation magnetic moment in the fusion crust due to a decrease of Fe-Ni-Co alloy content. Both XRD and Mössbauer spectroscopy show the presence of magnesioferrite in the fusion crust. The temperatures of cation equilibrium distribution between the M1 and M2 sites in silicates calculated using the data obtained from XRD and Mössbauer spectroscopy appeared to be in a good consistency: 553 and 479 K for olivine and 1213 and 1202 K for orthopyroxene.

Original language	English
Pages (from-to)	231-244
Number of pages	14
Journal	Meteoritics and Planetary Science
Volume	55
Issue number	1
DOIs	https://doi.org/10.1111/maps.13423
State	Published - 1 Jan 2020

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© The Meteoritical Society, 2019.

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title = "Characterization of the matrix and fusion crust of the recent meteorite fall Ozerki L6",

abstract = "We studied the interior and the fusion crust of the recently recovered Ozerki L6 meteorite using optical microscopy, scanning electron microscopy (SEM) with energy dispersive spectroscopy, X-ray diffraction (XRD), magnetization measurements, and M{\"o}ssbauer spectroscopy. The phase composition of the interior and of the fusion crust was determined by means of SEM, XRD, and M{\"o}ssbauer spectroscopy. The unit cell parameters for silicate crystals were evaluated from the X-ray diffractograms and were found the same for the interior and the fusion crust. Magnetization measurements revealed a decrease of the saturation magnetic moment in the fusion crust due to a decrease of Fe-Ni-Co alloy content. Both XRD and M{\"o}ssbauer spectroscopy show the presence of magnesioferrite in the fusion crust. The temperatures of cation equilibrium distribution between the M1 and M2 sites in silicates calculated using the data obtained from XRD and M{\"o}ssbauer spectroscopy appeared to be in a good consistency: 553 and 479 K for olivine and 1213 and 1202 K for orthopyroxene.",

author = "Maksimova, {A. A.} and Petrova, {E. V.} and Chukin, {A. V.} and Karabanalov, {M. S.} and I. Felner and M. Gritsevich and Oshtrakh, {M. I.}",

note = "Publisher Copyright: {\textcopyright} The Meteoritical Society, 2019.",

year = "2020",

month = jan,

day = "1",

doi = "10.1111/maps.13423",

language = "אנגלית",

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AU - Maksimova, A. A.

AU - Petrova, E. V.

AU - Chukin, A. V.

AU - Karabanalov, M. S.

AU - Felner, I.

AU - Gritsevich, M.

AU - Oshtrakh, M. I.

PY - 2020/1/1

Y1 - 2020/1/1

N2 - We studied the interior and the fusion crust of the recently recovered Ozerki L6 meteorite using optical microscopy, scanning electron microscopy (SEM) with energy dispersive spectroscopy, X-ray diffraction (XRD), magnetization measurements, and Mössbauer spectroscopy. The phase composition of the interior and of the fusion crust was determined by means of SEM, XRD, and Mössbauer spectroscopy. The unit cell parameters for silicate crystals were evaluated from the X-ray diffractograms and were found the same for the interior and the fusion crust. Magnetization measurements revealed a decrease of the saturation magnetic moment in the fusion crust due to a decrease of Fe-Ni-Co alloy content. Both XRD and Mössbauer spectroscopy show the presence of magnesioferrite in the fusion crust. The temperatures of cation equilibrium distribution between the M1 and M2 sites in silicates calculated using the data obtained from XRD and Mössbauer spectroscopy appeared to be in a good consistency: 553 and 479 K for olivine and 1213 and 1202 K for orthopyroxene.

AB - We studied the interior and the fusion crust of the recently recovered Ozerki L6 meteorite using optical microscopy, scanning electron microscopy (SEM) with energy dispersive spectroscopy, X-ray diffraction (XRD), magnetization measurements, and Mössbauer spectroscopy. The phase composition of the interior and of the fusion crust was determined by means of SEM, XRD, and Mössbauer spectroscopy. The unit cell parameters for silicate crystals were evaluated from the X-ray diffractograms and were found the same for the interior and the fusion crust. Magnetization measurements revealed a decrease of the saturation magnetic moment in the fusion crust due to a decrease of Fe-Ni-Co alloy content. Both XRD and Mössbauer spectroscopy show the presence of magnesioferrite in the fusion crust. The temperatures of cation equilibrium distribution between the M1 and M2 sites in silicates calculated using the data obtained from XRD and Mössbauer spectroscopy appeared to be in a good consistency: 553 and 479 K for olivine and 1213 and 1202 K for orthopyroxene.

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Characterization of the matrix and fusion crust of the recent meteorite fall Ozerki L6

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