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Recrystallization of metamict allanite

Published online by Cambridge University Press:  05 July 2018

T. Beirau ,
C. Paulmann  and
U. Bismayer
T. Beirau*
Affiliation:
Department of Earth Sciences, University of Hamburg, Grindelallee 48, 20146 Hamburg, Germany
C. Paulmann
Affiliation:
Department of Earth Sciences, University of Hamburg, Grindelallee 48, 20146 Hamburg, Germany
U. Bismayer
Affiliation:
Department of Earth Sciences, University of Hamburg, Grindelallee 48, 20146 Hamburg, Germany
*
*E-mail: tobias.beirau@mineralogie.uni-hamburg.de
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Abstract

Allanite is a common accessory mineral in igneous rocks. Allanite becomes metamict over geological time-scales as a result of the α-decay of radioactive elements in the crystal structure. This study focuses on the recrystallization of metamict allanite from Savvushka, Russia. The structural recovery produced by annealing was investigated by X-ray powder diffraction, single-crystal synchrotron X-ray diffraction and infrared spectroscopy. A kinetic analysis is presented that shows that the recrystallization process proceeds by at least two different mechanisms.

Keywords

allanitemetamictX-ray diffractionsynchrotron diffractionrecrystallization
Type
Research Article
Information
Mineralogical Magazine , Volume 75 , Issue 4 , August 2011 , pp. 2393 - 2399
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 2011

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References

Bonazzi, P. and Menchetti, S. (1994) Structural variations induced by heat-treatment in allanite and REE-bearing piemontite. American Mineralogist, 79, 1176–1184.Google Scholar
Cobic, A., Bermanec, V. and Tomasic, N. (2010) The hydrothermal recrystallization of metamict allanite-(Ce). The Canadian Mineralogist, 48, 513–521.CrossRefGoogle Scholar
Dollase, W.A. (1971) Refinement of the crystal structures of epidote, allanite and hancockite. American Mineralogist, 56, 447—464.Google Scholar
Ewing, R.C. (1987) The structure of the metamict state. Pp. 41—48 in: Second International Conference on Natural Glasses (Konta, J., editor). Charles University, Prague.Google Scholar
Ewing, R.C., Chakoumakos, B.C., Lumpkin, G.R. and Murakami, T. (1987) The metamict state. Materials Research Society Bulletin, 12, 58—66.CrossRefGoogle Scholar
Ewing, R.C., Chakoumakos, B.C., Lumpkin, G.R., Murakami, T., Greegor, R.B. and Lytle, F.W. (1988) Metamict minerals: natural analogues for radiation damage effects in ceramic nuclear waste forms. Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, 32, 487–497.CrossRefGoogle Scholar
Francis, R.J., O'Brien, S., Fogg, A.M., Halasyamani, P.S., O'Hare, D., Loiseau, T. and Ferey, G. (1999) Time-resolved in-situ energy and angle dispersive X-ray diffraction studies of the formation of the microporous gallophosphate ULM-5 under hydro-thermal conditions. Journal of the American Chemical Society, 121, 1002–1015.CrossRefGoogle Scholar
Hancock, J.D. and Sharp, J.H. (1972) Method of comparing solid-state kinetic data and its application to decomposition of kaolinite, brucite and BaCO3 . Journal of the American Ceramic Society, 55, 74–77.CrossRefGoogle Scholar
Hawthorne, F.C. (1987) A general structural classification for oxy-salt minerals. Geological Association of Canada—Mineralogical Association of Canada, Abstracts with Program, 10, 30.Google Scholar
Hawthorne, F.C., Groat, L.A., Raudsepp, M., Ball, N.A., Kimata, M., Spike, F.D., Gaba, R., Halden, N.M., Lumpkin, G.R., Ewing, R.C., Greegor, R.B., Lytle, F.W., Ercit, T.S., Rossman, G.R., Wicks, F.J., Ramik, R.A., Sherriff, B.L., Fleet, M.E. and McCammon, C. (1991) Alphα-decay damage in titanite. American Mineralogist, 76, 370—396.Google Scholar
Janeczek, J. and Eby, R.K. (1993) Annealing of radiation-damage in allanite and gadolinite. Physics and Chemistry of Minerals, 19, 343—356.CrossRefGoogle Scholar
Kiebach, R., Schaefer, M., Porsch, F. and Bensch, W. (2005) In-situ energy dispersive X-ray diffraction studies of the crystallization of (1,2-DAPH2)2 Ge9(OH)4O18-2H2O under solvothermal conditions. Zeitschrift für anorganische und allgemeine Chemie, 631, 369–374.CrossRefGoogle Scholar
Malczewski, D. and Grabias, A. (2008) Fe-57 Mössbauer spectroscopy of radiation damage. allamtes. Ada PhysicaPolonica A, 114, 1683–1690.Google Scholar
Mitchell, R.S. (1973) Metamict minerals: a review. Mineralogical Record, 4, 177—223.Google Scholar
Paulmann, C. and Bismayer, U. (2001) Anisotropic recrystallization effects in metamict allanite on isothermal annealing. Hasylab Annual Report 2001, 435-436.Google Scholar
Pouchou, J. and Pichoir, F. (1984) A new model for quantitative X-ray microanalysis. Part 1: Application to the analysis of homogeneous samples. Recherche Aerospatiale, 3, 13—38.Google Scholar
Vladimirov, A.G., Ponomareva, A.P., Shokalskü, S.P., Khalilov, V.A., Kostitsyn, Y.A., Ponomarchuk, V.A. Rudnev, S.N., Vystavnoi, S.A., Kruk, N.N. and Titov, A.V. (1997) Late Paleozoic early Mesozoic granitoid magmatism in Altai. Geologiya & Geofizika, 38, 715–729.Google Scholar
Weber, W.J (1990) Radiation-induced defects and amorphization in zircon. Journal of Materials Research, 5, 2687–2697.CrossRefGoogle Scholar
Zhang, M., Salje, E.K.H., Malcherek, T., Bismayer, U. and Groat, L.A. (2000) Dehydration of metamict titanite: an infrared spectroscopic study. The Canadian Mineralogist, 38, 119–130.CrossRefGoogle Scholar