Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
Octahedral cation partitioning in Mg,Fe2+-olivine. Mössbauer spectroscopic study of synthetic (Mg0.5 Fe 2+0.5)2SiO4 (Fa50). / Morozov, Mikhail; Brinkmann, Christian; Grodzicki, Michael; Lottermoser, Werner; Tippelt, Gerold; Amthauer, Georg; Kroll, Herbert.
в: Hyperfine Interactions, Том 166, № 1-4, 11.2005, стр. 573-578.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
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TY - JOUR
T1 - Octahedral cation partitioning in Mg,Fe2+-olivine. Mössbauer spectroscopic study of synthetic (Mg0.5 Fe 2+0.5)2SiO4 (Fa50)
AU - Morozov, Mikhail
AU - Brinkmann, Christian
AU - Grodzicki, Michael
AU - Lottermoser, Werner
AU - Tippelt, Gerold
AU - Amthauer, Georg
AU - Kroll, Herbert
N1 - Funding Information: Acknowledgments This work was partially supported by DFG and ÖAD grants, and also by the Russian Ministry of Education (grants PD02-1.5-361 and E02-2.0-58), Administration of St. Petersburg, Russia (grant PD03-1.5-55) and BRHE (grant Y1-G-15-01). Copyright: Copyright 2007 Elsevier B.V., All rights reserved.
PY - 2005/11
Y1 - 2005/11
N2 - The high-temperature partitioning of Fe2+ and Mg between the two non-equivalent octahedral M1 and M2 sites in synthetic olivine (Fa 50) was studied by Mössbauer spectroscopy. Powder samples have been equilibrated in annealing experiments performed under reducing oxygen fugacity at temperatures between 500 and 800°C followed by rapid quenching in order to prevent redistribution of cations. M-site ordering with Fe 2+ 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. [8, 9].
AB - The high-temperature partitioning of Fe2+ and Mg between the two non-equivalent octahedral M1 and M2 sites in synthetic olivine (Fa 50) was studied by Mössbauer spectroscopy. Powder samples have been equilibrated in annealing experiments performed under reducing oxygen fugacity at temperatures between 500 and 800°C followed by rapid quenching in order to prevent redistribution of cations. M-site ordering with Fe 2+ 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. [8, 9].
KW - Cation distribution
KW - Mössbauer spectroscopy
KW - Olivine
UR - http://www.scopus.com/inward/record.url?scp=33845790558&partnerID=8YFLogxK
U2 - 10.1007/s10751-006-9347-9
DO - 10.1007/s10751-006-9347-9
M3 - Article
AN - SCOPUS:33845790558
VL - 166
SP - 573
EP - 578
JO - Hyperfine Interactions
JF - Hyperfine Interactions
SN - 0304-3843
IS - 1-4
ER -
ID: 71137564