Mössbauer spectroscopic study of meteorites recovered on Antarctica

Kazutoyo Endo; Rieko Hirunuma; Taeko Shinonaga; Mitsuru Ebihara; Hiromichi Nakahara

doi:10.1007/BF02064570

Mössbauer spectroscopic study of meteorites recovered on Antarctica

Kazutoyo Endo^*, Rieko Hirunuma, Taeko Shinonaga, Mitsuru Ebihara, Hiromichi Nakahara

^*Corresponding author for this work

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

4 Citations (Scopus)

Abstract

The chemical states of iron in sixteen Antarctic meteorites belonging to H-group chondrites were studied by means of Mössbauer spectroscopy. An Fe-Ni alloy, troilite, paramagnetic Fe(III), and two kinds of paramagnetic Fe(II) were observed in each meteorite. The Mössbauer parameters indicated that the Fe(II) components can be assigned to olivine and some pyroxenes. The relative area intensities of Fe(III) in the chondrites correlated positively with iodine content, which was determined by radiochemical neutron activation analysis, and those of two Fe(II)-species correlated negatively with the content. On the basis of the data on the halogen and the Mössbauer spectrocopy, the terrestrial contamination on Antarctic meteorites is discussed.

Original language	English
Pages (from-to)	557-561
Number of pages	5
Journal	Hyperfine Interactions
Volume	91
Issue number	1
DOIs	https://doi.org/10.1007/BF02064570
Publication status	Published - 1994 Dec 1
Externally published	Yes

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics
Nuclear and High Energy Physics
Condensed Matter Physics
Physical and Theoretical Chemistry

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title = "M{\"o}ssbauer spectroscopic study of meteorites recovered on Antarctica",

abstract = "The chemical states of iron in sixteen Antarctic meteorites belonging to H-group chondrites were studied by means of M{\"o}ssbauer spectroscopy. An Fe-Ni alloy, troilite, paramagnetic Fe(III), and two kinds of paramagnetic Fe(II) were observed in each meteorite. The M{\"o}ssbauer parameters indicated that the Fe(II) components can be assigned to olivine and some pyroxenes. The relative area intensities of Fe(III) in the chondrites correlated positively with iodine content, which was determined by radiochemical neutron activation analysis, and those of two Fe(II)-species correlated negatively with the content. On the basis of the data on the halogen and the M{\"o}ssbauer spectrocopy, the terrestrial contamination on Antarctic meteorites is discussed.",

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T1 - Mössbauer spectroscopic study of meteorites recovered on Antarctica

AU - Endo, Kazutoyo

AU - Hirunuma, Rieko

AU - Shinonaga, Taeko

AU - Ebihara, Mitsuru

AU - Nakahara, Hiromichi

PY - 1994/12/1

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N2 - The chemical states of iron in sixteen Antarctic meteorites belonging to H-group chondrites were studied by means of Mössbauer spectroscopy. An Fe-Ni alloy, troilite, paramagnetic Fe(III), and two kinds of paramagnetic Fe(II) were observed in each meteorite. The Mössbauer parameters indicated that the Fe(II) components can be assigned to olivine and some pyroxenes. The relative area intensities of Fe(III) in the chondrites correlated positively with iodine content, which was determined by radiochemical neutron activation analysis, and those of two Fe(II)-species correlated negatively with the content. On the basis of the data on the halogen and the Mössbauer spectrocopy, the terrestrial contamination on Antarctic meteorites is discussed.

AB - The chemical states of iron in sixteen Antarctic meteorites belonging to H-group chondrites were studied by means of Mössbauer spectroscopy. An Fe-Ni alloy, troilite, paramagnetic Fe(III), and two kinds of paramagnetic Fe(II) were observed in each meteorite. The Mössbauer parameters indicated that the Fe(II) components can be assigned to olivine and some pyroxenes. The relative area intensities of Fe(III) in the chondrites correlated positively with iodine content, which was determined by radiochemical neutron activation analysis, and those of two Fe(II)-species correlated negatively with the content. On the basis of the data on the halogen and the Mössbauer spectrocopy, the terrestrial contamination on Antarctic meteorites is discussed.

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Mössbauer spectroscopic study of meteorites recovered on Antarctica

Abstract

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