Octahedral cation partitioning in Mg,Fe2+-olivine. Mössbauer spectroscopic study of synthetic (Mg0.5Fe2+ 0.5)2SiO4 (Fa50)

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Octahedral cation partitioning in Mg,Fe²⁺-olivine. Mössbauer spectroscopic study of synthetic (Mg_0.5Fe²⁺ _0.5)₂SiO₄ (Fa₅₀). / Morozov, Mikhail; Brinkmann, Christian; Lottermoser, Werner; Tippelt, Gerold; Amthauer, Georg; Kroll, Herbert.

In: European Journal of Mineralogy, Vol. 17, No. 3, 05.2005, p. 495-500.

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

Author

Morozov, Mikhail ; Brinkmann, Christian ; Lottermoser, Werner ; Tippelt, Gerold ; Amthauer, Georg ; Kroll, Herbert. / Octahedral cation partitioning in Mg,Fe²⁺-olivine. Mössbauer spectroscopic study of synthetic (Mg_0.5Fe²⁺ _0.5)₂SiO₄ (Fa₅₀). In: European Journal of Mineralogy. 2005 ; Vol. 17, No. 3. pp. 495-500.

BibTeX

@article{f7bff3a6e5af4d279e75553740c8f6ff,

title = "Octahedral cation partitioning in Mg,Fe2+-olivine. M{\"o}ssbauer spectroscopic study of synthetic (Mg0.5Fe2+ 0.5)2SiO4 (Fa50)",

abstract = "The high-temperature partitioning of Fe2+ and Mg between the two non-equivalent octahedral M1 and M2 sites in synthetic olivine (Fa50) was studied by M{\"o}ssbauer spectroscopy. Powder samples have been equilibrated in annealing experiments performed under reducing oxygen fugacity at temperatures between 500°C and 800°C followed by rapid quenching in order to prevent redistribution of cations. M-site ordering with Fe2+ preferring M1, Mg preferring M2 sites increases continuously with rising equilibrium temperature. KD values increase from 1.21 at 500°C to 1.48 at 750°C. The results are consistent with both room temperature as well as in situ high temperature single crystal X-ray diffraction experiments of Heinemann et al. (2003a and b).",

keywords = "High-temperature cation partitioning, M{\"o}ssbauer spectroscopy, Olivine, Structural disorder",

author = "Mikhail Morozov and Christian Brinkmann and Werner Lottermoser and Gerold Tippelt and Georg Amthauer and Herbert Kroll",

year = "2005",

month = may,

doi = "10.1127/0935-1221/2005/0017-0495",

language = "English",

volume = "17",

pages = "495--500",

journal = "European Journal of Mineralogy",

issn = "0935-1221",

publisher = "SCHWEIZERBART Science Publishers",

number = "3",

}

RIS

TY - JOUR

T1 - Octahedral cation partitioning in Mg,Fe2+-olivine. Mössbauer spectroscopic study of synthetic (Mg0.5Fe2+ 0.5)2SiO4 (Fa50)

AU - Morozov, Mikhail

AU - Brinkmann, Christian

AU - Lottermoser, Werner

AU - Tippelt, Gerold

AU - Amthauer, Georg

AU - Kroll, Herbert

PY - 2005/5

Y1 - 2005/5

N2 - The high-temperature partitioning of Fe2+ and Mg between the two non-equivalent octahedral M1 and M2 sites in synthetic olivine (Fa50) was studied by Mössbauer spectroscopy. Powder samples have been equilibrated in annealing experiments performed under reducing oxygen fugacity at temperatures between 500°C and 800°C followed by rapid quenching in order to prevent redistribution of cations. M-site ordering with Fe2+ preferring M1, Mg preferring M2 sites increases continuously with rising equilibrium temperature. KD values increase from 1.21 at 500°C to 1.48 at 750°C. The results are consistent with both room temperature as well as in situ high temperature single crystal X-ray diffraction experiments of Heinemann et al. (2003a and b).

AB - The high-temperature partitioning of Fe2+ and Mg between the two non-equivalent octahedral M1 and M2 sites in synthetic olivine (Fa50) was studied by Mössbauer spectroscopy. Powder samples have been equilibrated in annealing experiments performed under reducing oxygen fugacity at temperatures between 500°C and 800°C followed by rapid quenching in order to prevent redistribution of cations. M-site ordering with Fe2+ preferring M1, Mg preferring M2 sites increases continuously with rising equilibrium temperature. KD values increase from 1.21 at 500°C to 1.48 at 750°C. The results are consistent with both room temperature as well as in situ high temperature single crystal X-ray diffraction experiments of Heinemann et al. (2003a and b).

KW - High-temperature cation partitioning

KW - Mössbauer spectroscopy

KW - Olivine

KW - Structural disorder

UR - http://www.scopus.com/inward/record.url?scp=21244474728&partnerID=8YFLogxK

U2 - 10.1127/0935-1221/2005/0017-0495

DO - 10.1127/0935-1221/2005/0017-0495

M3 - Article

AN - SCOPUS:21244474728

VL - 17

SP - 495

EP - 500

JO - European Journal of Mineralogy

JF - European Journal of Mineralogy

SN - 0935-1221

IS - 3

ER -

ID: 71137696