Hostname: page-component-77c89778f8-7drxs Total loading time: 0 Render date: 2024-07-17T18:10:31.976Z Has data issue: false hasContentIssue false
  • English
  • Français

High-temperature in situ Rietveld study of Fe,Mg cation partitioning in olivine

Published online by Cambridge University Press:  10 January 2013

G. Artioli ,
M. Bellotto  and
B. Palosz
G. Artioli
Affiliation:
Università di Milano, Dipartimento di Scienze della Terra, I-20133 Milano, Italy
M. Bellotto
Affiliation:
CISE Tecnobgie Innovative, I-20119 Segrate, Italy
B. Palosz
Affiliation:
High Pressure Research Center, P-01142 Warszawa, Poland
Get access Rights & Permissions [Opens in a new window]

Abstract

A natural olivine sample from a mantle peridotite xenolith has been studied by in situ high-temperature powder diffraction. The structure has been successfully refined from powder data at three temperatures (25, 600, and 800 °C) using the Rietveld method. The study shows that the full-profile technique is well suited for the structure analysis of high-temperature powder diffraction data. The results indicate that, in this temperature range, there is no significant ordering of the Fe,Mg cations in the two crystallographically independent octahedral sites. This has implications for the thermodynamic modeling of olivine at upper mantle conditions. The present experiments allowed measurement of the lattice thermal expansion of olivine in the temperature range 25–800 °C, and assessment of the temperature dependence of the isotropic atomic displacement parameters.

Type
Research Article
Information
Powder Diffraction , Volume 9 , Issue 1 , March 1994 , pp. 63 - 67
Copyright
Copyright © Cambridge University Press 1994

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Aikawa, N., Kumazawa, M., and Tokonami, N. (1985). “Temperature Dependence of Intersite Distribution of Mg and Fe in Olivine and the Associated Change of Lattice Parameters,” Phys. Chem. Minerals 12, 1–8.Google Scholar
Akamatsu, T., and Kumazawa, M. (1993). “Kinetics of Intracrystalline Cation Redistribution in Olivine and Its Implication,” Phys. Chem. Minerals 19, 423–430.Google Scholar
Akamatsu, T., Kumazawa, M., Aikawa, N., and Takei, H. (1993). “Pressure Effect on the Divalent Cation Distribution in Nonideal Solid Solution of Forsterite and Fayalite,” Phys. Chem. Minerals 19, 431–444.CrossRefGoogle Scholar
Basso, R., Dal Negro, A., Della Giusta, A., and Rossi, G. (1979). “Fe/Mg Distribution in the Olivine of Ultrafemic Nodules from Assab (Ethiopia),” N. Jb. Miner. Mh. 5, 197–202.Google Scholar
Bocchio, R., Brajkovic, A., and Pilati, T. (1986). “Crystal Chemistry of the Olivines in the Peridotites from the Ivrea-Verbano Zone (Western Italian Alps),” N. Jb. Miner Mh. 7, 313–324.Google Scholar
Brown, G. E. (1982). “Olivine and Silicate Spinels,” in Reviews in Mineralogy (Mineralogical Society of America, Washington), Vol. 5, pp. 275–365.Google Scholar
Brown, G. E., and Prewitt, C. T. (1973). “High-Temperature Crystal Chemistry of Hortonolite,” Am. Miner. 58, 577–587.Google Scholar
Fujino, K., Sasaki, S., Takéuchi, T., and Sadanaga, R. (1981). “X-Ray Determination of Electron Distributions in Forsterite, Fayalite and Tephroite,” Acta Cryst. B 37, 513–518.Google Scholar
Ghose, S., and Ganguly, J. (1982). “Mg-Fe Order-Disorder in Ferromagnesian Silicates,” in Advances in Physical Geochemistry (Springer-Verlag, New York), Vol. 2, pp. 3–99.CrossRefGoogle Scholar
Hazen, R. M. (1977). “Effects of Temperature and Pressure on the Crystal Structure of Ferromagnesian Olivine,” Am. Miner. 62, 286–295.Google Scholar
Hazen, R. M., and Finger, L. W. (1982). Comparative Crystal Chemistry (Wiley, New York).Google Scholar
Hazen, R. M., and Prewitt, C. T. (1977). “Effects of Temperature and Pressure on Interatomic Distances in Oxygen-Based Minerals,” Am. Miner. 62, 309–315.Google Scholar
Hill, R. J. (1992). “IUCr Commission on Powder Diffraction. Rietveld Refinement Round Robin. I. Analysis of Standard X-Ray and Neutron Data for PbSO4,” J. Appl. Cryst. 25, 589–610.CrossRefGoogle Scholar
Khisina, N. R., Belokoneva, L., Ukhanov, A. V., and Urusov, V. S. (1985). “Petrological Consequences of the Intracrystalline Distribution of Fe and Mg in Olivines,” Geokhimiya 2, 153–162.Google Scholar
Larson, A. C., and Von Dreele, R. B. (1993). “GSAS, Generalized Structure Analysis System,” Document LAUR 86-748 (Los Alamos National Laboratory, Los Alamos).Google Scholar
Mackwell, S. J. (1992). “Oxidation Kinetics of Fayalite (Fe2SiO4),” Phys. Chem. Minerals 19, 220–228.CrossRefGoogle Scholar
Massarotti, V., Flor, G., and Marini, A. (1981). “Crystal Data for Ferric Molybdate: Fe2(MoO4)3” J. Appl. Cryst. 14, 64–65.Google Scholar
Motoyama, T., and Matsumoto, T. (1989). “The Crystal Structures and the Cation Distributions of Mg and Fe of Natural Olivines,” Miner. J. 14, 338–350.CrossRefGoogle Scholar
O'Neill, H. St. C., Dollase, W. A., and Ross, C. R. (1991). “Temperature Dependence of the Cation Distribution in Nickel Aluminate (NiAl2O4) Spinel: a Powder XRD Study,” Phys. Chem. Minerals 18, 302–319.CrossRefGoogle Scholar
Ottonello, G., Princivalle, F., and Della Giusta, A. (1990). “Temperature, Composition, and f o2 Effects on Intersite Distribution of Mg and Fe2+ in Olivines,” Phys. Chem. Minerals 17, 301–312.CrossRefGoogle Scholar
Piccardo, G. B., and Ottonello, G. (1978). “Partial Melting Effects on Coexisting Mineral Compositions in Upper Mantle Xenoliths from Assab (Ethiopia),” Rend. Soc. Ital. Miner. Petrol. 34, 499–526.Google Scholar
Princivalle, F. (1990). “Influence of Temperature and Composition on Mg-Fe2+ Intracrystalline Distribution in Olivines,” Miner. Petrol. 43, 121–129.CrossRefGoogle Scholar
Princivalle, F., and Secco, L. (1985). “Crystal Structure Refinement of 13 Olivines in the Forsterite-Fayalite Series from Volcanic Rocks and Ultramafic Nodules,” Tschermaks Miner. Petrol. Mitt. 34, 105–115.Google Scholar
Raudsepp, M., Hawthorne, F. C., and Turnock, A. C. (1990). “Evaluation of the Rietveld Method for the Characterization of Fine-Grained Products of Mineral Synthesis: the Diopside-Hedenbergite Join,” Canad. Miner. 28, 93–109.Google Scholar
Smyth, J. R., and Hazen, R. M. (1973). “The Crystal Structures of Forsterite and Hortonolite at Several Temperatures up to 900 °C,” Am. Miner. 58, 588–593.Google Scholar
Wenk, H. R., and Raymond, K. N. (1973). “Four New Structure Refinements of Olivine,” Z. Kristall. 137, 86–105.Google Scholar