Determination of [Fe2+]/[Fe3+]-ratios in Arfvedsonite by Mössbauer Spectroscopy

E. B. Andersen; J. Fenger; J. Rose-Hansen

doi:10.1016/0024-4937(75)90040-7

Determination of [Fe2+]/[Fe3+]-ratios in Arfvedsonite by Mössbauer Spectroscopy

E. B. Andersen, J. Fenger, J. Rose-Hansen

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Abstract

The Mössbauer absorption spectra of arfvedsonite are composed of three quadrupole doublets which are ascribed to Fe2+ in M1 and M2 sites and to Fe3+ in M2 sites. The relative intensities of the resonances are a measure of the distribution of iron at the different sites, but it is necessary to correct for a difference between the recoil-free fractions. At room temperature [Fe2+] seems detected with an efficiency of only about 85% of that of [Fe3+]. Results of [Fe2+]/[Fe3+] determinations by Mössbauer spectroscopy and by wet chemical analysis of a series of arfvedsonite samples, separated from various rocks from the Ilimaussaq intrusion, south Greenland, are compared and agree reasonably well.

Original language	English
Journal	Lithos
Volume	8
Issue number	3
Pages (from-to)	237-246
ISSN	0024-4937
DOIs	https://doi.org/10.1016/0024-4937(75)90040-7
Publication status	Published - 1975

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title = "Determination of [Fe2+]/[Fe3+]-ratios in Arfvedsonite by M{\"o}ssbauer Spectroscopy",

abstract = "The M{\"o}ssbauer absorption spectra of arfvedsonite are composed of three quadrupole doublets which are ascribed to Fe2+ in M1 and M2 sites and to Fe3+ in M2 sites. The relative intensities of the resonances are a measure of the distribution of iron at the different sites, but it is necessary to correct for a difference between the recoil-free fractions. At room temperature [Fe2+] seems detected with an efficiency of only about 85% of that of [Fe3+]. Results of [Fe2+]/[Fe3+] determinations by M{\"o}ssbauer spectroscopy and by wet chemical analysis of a series of arfvedsonite samples, separated from various rocks from the Ilimaussaq intrusion, south Greenland, are compared and agree reasonably well.",

author = "Andersen, {E. B.} and J. Fenger and J. Rose-Hansen",

year = "1975",

doi = "10.1016/0024-4937(75)90040-7",

language = "English",

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pages = "237--246",

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T1 - Determination of [Fe2+]/[Fe3+]-ratios in Arfvedsonite by Mössbauer Spectroscopy

AU - Andersen, E. B.

AU - Fenger, J.

AU - Rose-Hansen, J.

PY - 1975

Y1 - 1975

N2 - The Mössbauer absorption spectra of arfvedsonite are composed of three quadrupole doublets which are ascribed to Fe2+ in M1 and M2 sites and to Fe3+ in M2 sites. The relative intensities of the resonances are a measure of the distribution of iron at the different sites, but it is necessary to correct for a difference between the recoil-free fractions. At room temperature [Fe2+] seems detected with an efficiency of only about 85% of that of [Fe3+]. Results of [Fe2+]/[Fe3+] determinations by Mössbauer spectroscopy and by wet chemical analysis of a series of arfvedsonite samples, separated from various rocks from the Ilimaussaq intrusion, south Greenland, are compared and agree reasonably well.

AB - The Mössbauer absorption spectra of arfvedsonite are composed of three quadrupole doublets which are ascribed to Fe2+ in M1 and M2 sites and to Fe3+ in M2 sites. The relative intensities of the resonances are a measure of the distribution of iron at the different sites, but it is necessary to correct for a difference between the recoil-free fractions. At room temperature [Fe2+] seems detected with an efficiency of only about 85% of that of [Fe3+]. Results of [Fe2+]/[Fe3+] determinations by Mössbauer spectroscopy and by wet chemical analysis of a series of arfvedsonite samples, separated from various rocks from the Ilimaussaq intrusion, south Greenland, are compared and agree reasonably well.

U2 - 10.1016/0024-4937(75)90040-7

DO - 10.1016/0024-4937(75)90040-7

M3 - Journal article

SN - 0024-4937

VL - 8

SP - 237

EP - 246

JO - Lithos

JF - Lithos

IS - 3

ER -

Determination of [Fe2+]/[Fe3+]-ratios in Arfvedsonite by Mössbauer Spectroscopy

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