Characterization of Northwest Africa 6286 and 7857 ordinary chondrites using X-ray diffraction, magnetization measurements and Mössbauer spectroscopy

A. A. Maksimova; M. I. Oshtrakh; A. V. Chukin; I. Felner; G. A. Yakovlev; V. A. Semionkin

doi:10.1016/j.saa.2017.10.056

Characterization of Northwest Africa 6286 and 7857 ordinary chondrites using X-ray diffraction, magnetization measurements and Mössbauer spectroscopy

A. A. Maksimova
, M. I. Oshtrakh^*
, A. V. Chukin
, I. Felner
, G. A. Yakovlev
, V. A. Semionkin

^*Corresponding author for this work

Racah Institute of Physics

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

21 Scopus citations

Abstract

Northwest Africa (NWA) 6286 and 7857 meteorites were studied in detail by using optical microscopy, scanning electron microscopy with energy dispersion spectroscopy, X-ray diffraction, magnetization measurements and ⁵⁷Fe Mössbauer spectroscopy with a high velocity resolution. The main and the minor iron-bearing phases were identified in both meteorites. The unit cell parameters as well as Fe²⁺ and Mg²⁺ cation distribution were determined for the M1 and M2 sites in silicate microcrystals. Saturation magnetic moments were obtained for both meteorites. Mössbauer parameters for the main and the minor iron-bearing microcrystals were estimated and compared for NWA 6286 and NWA 7857 LL6 ordinary chondrites. The Fe²⁺ and Mg²⁺ cation partitioning, distribution coefficient and temperature of cation equilibrium distribution were estimated for silicate microcrystals using X-ray diffraction and Mössbauer spectroscopy.

Original language	English
Pages (from-to)	275-284
Number of pages	10
Journal	Spectrochimica Acta - Part A: Molecular and Biomolecular Spectroscopy
Volume	192
DOIs	https://doi.org/10.1016/j.saa.2017.10.056
State	Published - 5 Mar 2018

Bibliographical note

Publisher Copyright:
© 2017 Elsevier B.V.

Keywords

Magnetization measurements
Mössbauer spectroscopy
Northwest Africa 6286 and 7857 ordinary chondrites
X-ray diffraction

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10.1016/j.saa.2017.10.056

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Maksimova, A. A., Oshtrakh, M. I., Chukin, A. V., Felner, I., Yakovlev, G. A., & Semionkin, V. A. (2018). Characterization of Northwest Africa 6286 and 7857 ordinary chondrites using X-ray diffraction, magnetization measurements and Mössbauer spectroscopy. Spectrochimica Acta - Part A: Molecular and Biomolecular Spectroscopy, 192, 275-284. https://doi.org/10.1016/j.saa.2017.10.056

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title = "Characterization of Northwest Africa 6286 and 7857 ordinary chondrites using X-ray diffraction, magnetization measurements and M{\"o}ssbauer spectroscopy",

abstract = "Northwest Africa (NWA) 6286 and 7857 meteorites were studied in detail by using optical microscopy, scanning electron microscopy with energy dispersion spectroscopy, X-ray diffraction, magnetization measurements and 57Fe M{\"o}ssbauer spectroscopy with a high velocity resolution. The main and the minor iron-bearing phases were identified in both meteorites. The unit cell parameters as well as Fe2+ and Mg2+ cation distribution were determined for the M1 and M2 sites in silicate microcrystals. Saturation magnetic moments were obtained for both meteorites. M{\"o}ssbauer parameters for the main and the minor iron-bearing microcrystals were estimated and compared for NWA 6286 and NWA 7857 LL6 ordinary chondrites. The Fe2+ and Mg2+ cation partitioning, distribution coefficient and temperature of cation equilibrium distribution were estimated for silicate microcrystals using X-ray diffraction and M{\"o}ssbauer spectroscopy.",

keywords = "Magnetization measurements, M{\"o}ssbauer spectroscopy, Northwest Africa 6286 and 7857 ordinary chondrites, X-ray diffraction",

author = "Maksimova, \{A. A.\} and Oshtrakh, \{M. I.\} and Chukin, \{A. V.\} and I. Felner and Yakovlev, \{G. A.\} and Semionkin, \{V. A.\}",

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year = "2018",

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doi = "10.1016/j.saa.2017.10.056",

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Maksimova, AA, Oshtrakh, MI, Chukin, AV, Felner, I, Yakovlev, GA & Semionkin, VA 2018, 'Characterization of Northwest Africa 6286 and 7857 ordinary chondrites using X-ray diffraction, magnetization measurements and Mössbauer spectroscopy', Spectrochimica Acta - Part A: Molecular and Biomolecular Spectroscopy, vol. 192, pp. 275-284. https://doi.org/10.1016/j.saa.2017.10.056

Characterization of Northwest Africa 6286 and 7857 ordinary chondrites using X-ray diffraction, magnetization measurements and Mössbauer spectroscopy. / Maksimova, A. A.; Oshtrakh, M. I.; Chukin, A. V. et al.
In: Spectrochimica Acta - Part A: Molecular and Biomolecular Spectroscopy, Vol. 192, 05.03.2018, p. 275-284.

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

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T1 - Characterization of Northwest Africa 6286 and 7857 ordinary chondrites using X-ray diffraction, magnetization measurements and Mössbauer spectroscopy

AU - Maksimova, A. A.

AU - Oshtrakh, M. I.

AU - Chukin, A. V.

AU - Felner, I.

AU - Yakovlev, G. A.

AU - Semionkin, V. A.

PY - 2018/3/5

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N2 - Northwest Africa (NWA) 6286 and 7857 meteorites were studied in detail by using optical microscopy, scanning electron microscopy with energy dispersion spectroscopy, X-ray diffraction, magnetization measurements and 57Fe Mössbauer spectroscopy with a high velocity resolution. The main and the minor iron-bearing phases were identified in both meteorites. The unit cell parameters as well as Fe2+ and Mg2+ cation distribution were determined for the M1 and M2 sites in silicate microcrystals. Saturation magnetic moments were obtained for both meteorites. Mössbauer parameters for the main and the minor iron-bearing microcrystals were estimated and compared for NWA 6286 and NWA 7857 LL6 ordinary chondrites. The Fe2+ and Mg2+ cation partitioning, distribution coefficient and temperature of cation equilibrium distribution were estimated for silicate microcrystals using X-ray diffraction and Mössbauer spectroscopy.

AB - Northwest Africa (NWA) 6286 and 7857 meteorites were studied in detail by using optical microscopy, scanning electron microscopy with energy dispersion spectroscopy, X-ray diffraction, magnetization measurements and 57Fe Mössbauer spectroscopy with a high velocity resolution. The main and the minor iron-bearing phases were identified in both meteorites. The unit cell parameters as well as Fe2+ and Mg2+ cation distribution were determined for the M1 and M2 sites in silicate microcrystals. Saturation magnetic moments were obtained for both meteorites. Mössbauer parameters for the main and the minor iron-bearing microcrystals were estimated and compared for NWA 6286 and NWA 7857 LL6 ordinary chondrites. The Fe2+ and Mg2+ cation partitioning, distribution coefficient and temperature of cation equilibrium distribution were estimated for silicate microcrystals using X-ray diffraction and Mössbauer spectroscopy.

KW - Magnetization measurements

KW - Mössbauer spectroscopy

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KW - X-ray diffraction

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JO - Spectrochimica Acta - Part A: Molecular and Biomolecular Spectroscopy

JF - Spectrochimica Acta - Part A: Molecular and Biomolecular Spectroscopy

ER -

Characterization of Northwest Africa 6286 and 7857 ordinary chondrites using X-ray diffraction, magnetization measurements and Mössbauer spectroscopy

Abstract

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Keywords

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