An analysis of Fe and Ni distribution in M1, M2 and M3 sites of iron–nickel phosphides extracted from Sikhote-Alin meteorite using Mössbauer spectroscopy with a high velocity resolution

Оштрах, М. И.; Larionov, M. Yu.; Grokhovsky, V. I.; Semionkin, V. A.

doi:10.1016/j.molstruc.2010.09.041

Cited by 10 publications

(16 citation statements)

References 13 publications

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“…9a and b). These fits were better than previous ones made in [19] that can be clearly seen by comparison of differential spectra. To evaluate these results we considered the first approach in which the largest values of H eff were related to the 57 Fe in the M1 sites, the medium values of H eff were related to the 57 Fe in the M2 sites and the lowest values of H eff were related to the 57 Fe in the M3…”

Section: Schreibersite From Sikhote-alin Iron Meteoritecontrasting

confidence: 54%

“…8a). Previous study [19] was performed on the basis of the model [21] nickel phosphide has additional variations in Fe and Ni occupations of the M2 and M3 sites (M1 site in schreibersite is occupied by Fe atoms only). We evaluated the local microenvironments for each non-equivalent site within the sphere with radius of 3.0 Å (Fig.…”

Section: Schreibersite From Sikhote-alin Iron Meteoritementioning

confidence: 99%

“…Further development of Mössbauer spectrometers to increase velocity resolution up to 4096 channels (a high velocity resolution) in the spectrum leads to decrease in the instrumental (systematic) error on the velocity scale and better fit of complicated Mössbauer spectra due to increase in the number of spectral points (see technical advances in [4][5][6]). Study of meteorites and its iron-bearing phases using Mössbauer spectroscopy with a high velocity resolution demonstrated new possibilities in revealing data which could not be obtained from Mössbauer spectra measured with a low velocity resolution [7][8][9][10][11][12][13][14][15][16][17][18][19][20]. Therefore, in this work we consider further results of the study of some ironbearing minerals from some meteorites obtained using Mössbauer spectroscopy with a high velocity resolution.…”

Section: Introductionmentioning

confidence: 99%

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Mössbauer spectroscopy with a high velocity resolution applied for the study of meteoritic iron-bearing minerals

Оштрах

Grokhovsky

Petrova

et al. 2013

Journal of Molecular Structure

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a b s t r a c tMössbauer spectroscopy with a high velocity resolution was applied for study of iron-bearing minerals in different meteorites. The possibility of technique to reveal small variations in Mössbauer hyperfine parameters of the 57 Fe in the non-equivalent M1 and M2 sites in olivines from Farmington L5 and Tsarev L5 ordinary chondrites and from Omolon and Seymchan pallasites was demonstrated. The necessity of accounting for the Fe and Ni occupation probabilities in the local microenvironments for non-equivalent sites M1, M2 and M3 in schreibersite, an iron nickel phosphide from Sikhote-Alin iron meteorite, in the fit of its Mössbauer spectra was shown. Variations in Mössbauer parameters of metal samples from visually different areas at the saw-cut surface of Chinga iron meteorite fragment with unknown origin were observed; these variations may be related to different metal phase composition and local variations of Ni concentration in the metal phases in these areas.

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Section: Schreibersite From Sikhote-alin Iron Meteoritecontrasting

confidence: 54%

Section: Schreibersite From Sikhote-alin Iron Meteoritementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Mössbauer spectroscopy with a high velocity resolution applied for the study of meteoritic iron-bearing minerals

Оштрах

Grokhovsky

Petrova

et al. 2013

Journal of Molecular Structure

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“…Iron‐nickel phosphides (Fe,Ni) 3 P occur in two different textural modes in the Campo del Cielo meteorite: elongate idiomorphic rhabdites of micrometer‐scale width (Fig. 1B) within coarser kamacite (e.g., Oshtrakh et al. 2011), and coarser blocky schreibersite macro‐inclusions (50–200 μm; Fig.…”

Section: Resultsmentioning

confidence: 99%

Chemical modification of projectile residues and target material in a MEMIN cratering experiment

Ebert

Hecht

Deutsch

et al. 2013

Meteorit & Planetary Scien

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Abstract-In the context of the MEMIN project, a hypervelocity cratering experiment has been performed using a sphere of the iron meteorite Campo del Cielo as projectile accelerated to 4.56 km s, and a block of Seeberger sandstone as target material. The ejecta, collected in a newly designed catcher, are represented by (1) weakly deformed, (2) highly deformed, and (3) highly shocked material. The latter shows shock-metamorphic features such as planar deformation features (PDF) in quartz, formation of diaplectic quartz glass, partial melting of the sandstone, and partially molten projectile, mixed mechanically and chemically with target melt. During mixing of projectile and target melts, the Fe of the projectile is preferentially partitioned into target melt to a greater degree than Ni and Co yielding a Fe ⁄ Ni that is generally higher than Fe ⁄ Ni in the projectile. This fractionation results from the differing siderophile properties, specifically from differences in reactivity of Fe, Ni, and Co with oxygen during projectile-target interaction. Projectile matter was also detected in shocked quartz grains. The average Fe ⁄ Ni of quartz with PDF (about 20) and of silica glasses (about 24) are in contrast to the average sandstone ratio (about 422), but resembles the Fe ⁄ Ni-ratio of the projectile (about 14). We briefly discuss possible reasons of projectile melting and vaporization in the experiment, in which the calculated maximum shock pressure does not exceed 55 GPa.

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“…Another application of Mössbauer spectroscopy with a high velocity resolution was recently demonstrated in the study of two different morphological forms of iron nickel phosphides (Fe,Ni) 3 P, schreibersite (macroinclusions) and rhabdite (microcrystals), extracted from the iron meteorite Sikhote-Alin [34][35][36]. Mössbauer spectra of schreibersite measured at 295 and 90 K with a high velocity resolution and presented in 1024 channels were fitted using 6 magnetic sextets two pairs of which were related to the 57 Fe in each crystallographically non-equivalent site, respectively (M1, M2 and M3).…”

Section: Cosmochemical Applicationmentioning

confidence: 99%

Mössbauer spectroscopy with a high velocity resolution: Advances in biomedical, pharmaceutical, cosmochemical and nanotechnological research

Оштрах

Semionkin

2013

Spectrochimica Acta Part A: Molecular and Biomolecular Spectros

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113

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a b s t r a c tThe methodological principles of velocity resolution as additional characteristic of the quality of both Mössbauer spectrometer velocity driving system and Mössbauer spectrum were briefly considered. Significantly better quality of Mössbauer spectra measured with a high velocity resolution in comparison with those measured with a low velocity resolution was demonstrated. The main advances of recent studies of iron containing biomolecules, pharmaceutical products, meteorite samples and nanoparticles using Mössbauer spectroscopy with a high velocity resolution were considered and advantages of this technique were shown.

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An analysis of Fe and Ni distribution in M1, M2 and M3 sites of iron–nickel phosphides extracted from Sikhote-Alin meteorite using Mössbauer spectroscopy with a high velocity resolution

Cited by 10 publications

References 13 publications

Mössbauer spectroscopy with a high velocity resolution applied for the study of meteoritic iron-bearing minerals

Mössbauer spectroscopy with a high velocity resolution applied for the study of meteoritic iron-bearing minerals

Chemical modification of projectile residues and target material in a MEMIN cratering experiment

Mössbauer spectroscopy with a high velocity resolution: Advances in biomedical, pharmaceutical, cosmochemical and nanotechnological research

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