Kinetics of Fe2+-Mg order-disorder in P21/c pigeonite

American Mineralogist

Volumn 90, Issue 11-12, 2005, Pages 1816-1823

  Domeneghetti, M Chiara ^a   Zema, Michele ^a   Tazzoli, Vittorio ^a  

^a UNIVERSITY OF PAVIA   (Italy)

Author keywords

[No Author keywords available]

Indexed keywords

ACTIVATION ENERGY; BINARY ALLOYS; COOLING; IRON ALLOYS; ISOTHERMAL ANNEALING; KINETICS; MAGNESIUM ALLOYS; MAGNESIUM METALLOGRAPHY; RATE CONSTANTS; SINGLE CRYSTALS; TITANIUM SHEET; X RAY DIFFRACTION;

ANNEALING EXPERIMENTS; ARRHENIUS RELATIONS; COOLING TIME CONSTANTS; EXCHANGE EQUILIBRIA; EXCHANGE PROCESS; EXCHANGE REACTION; SINGLE CRYSTAL X-RAY DIFFRACTION; STRUCTURE REFINEMENTS;

IRON METALLOGRAPHY;

ION EXCHANGE; PIGEONITE; REACTION KINETICS;

EID: 30644470795     PISSN: 0003004X     EISSN: None     Source Type: Journal    
DOI: 10.2138/am.2005.1773     Document Type: Article

References (49)

1. Anovitz, L.M., Essene, E.J., and Dunham, W.R. (1988) Order-disorder experiments on orthopyroxenes: implications for the orthopyroxene geospeedometer. American Mineralogist, 73, 1060-1073.
2. Bellieni, G., Comin-Chiaromonti, P., Marques, L.S., Melfi, A.J., Nardy, A.J.R., Papatrechas, C., Piccirillo, E.M., Roisenberg, A., and Stolfa, D. (1986) Petrogenetic aspects of acid and basaltic lavas from the Paraná Plateau (Brasil): Geological, mineralogical and petrochemical relationships. Journal of Petrology, 27, 915-944.
3. Besancon, J.R. (1981) Rate of cation ordering in orthopyroxenes. American Mineralogist, 66, 965-973.
4. Betteridge, P.W., Carruthers, J.R., Cooper, R.I., Prout, K., and Watkin, D.J. (2003) CRYSTALS version 12: software for guided crystal structure analysis. Journal of Applied Crystallography, 36, 1487.
5. Blessing, R.H. (1995) An empirical correction for absorption anisotropy. Acta Crystallographica, A51, 33-38.
6. 11 augite. American Mineralogist, 86, 271-278.
7. Brown, G.E., Prewitt, C.T., Papike, J.J., and Sueno, S. (1972) A comparison of the structure of low and high pigeonite. Journal of Geophysical Research, 77, 5778-5789.
8. Cámara, F., Carpenter, M.A., Domeneghetti, M.C., and Tazzoli, V. (2002) Non-convergent ordering and displacive phase transition in pigeonite: in situ HT XRD study. Physics and Chemistry of Minerals, 29, 331-340.
9. Carruthers, J.R. and Watkin, D.J. (1979) Chebychev weighting. Acta Crystallographica, A35, 698-699.
10. Domeneghetti, M.C., Molin, G.M., Triscari, M., and Zema, M. (2000) Orthopyroxene as a geospeedometer: thermal history of Kapoeta, Old Homestead 001 and Hughes 002 howardites. Meteoritics and Planetary Science, 35, 347-354.
11. 1/c pigeonite: implications for cooling rates calculations. Lunar and Planetary Science XXXV, Abstracts, 1145.
12. Ganguly, J. (1982) Mg-Fe order-disorder in ferromagnesian silicates II. In S.K. Saxena, Ed., Thermodynamics: Kinetics and Geological Applications. Advances in Physical Geochemistry, 2, 58-99. Springer, Berlin.
13. Ganguly, J. and Domeneghetti, M.C. (1996) Cation ordering of orthopyroxenes from the Skaergaard Intrusion: implications for the subsolidus cooling rates and permeabilities. Contributions to Mineralogy and Petrology, 122, 359-367.
14. Ganguly, J. and Stimpfl, M. (2000) Cation ordering in orthopyroxenes from two stony-iron meteorites: implications for cooling rates and metal-silicate mixing. Geochimica et Cosmochimica Acta, 64, 1291-1297.
15. 2+-Mg interdiffusion in orthopyroxene: Retrieval from data on intracrystalline exchange reaction. American Mineralogist, 79, 930-937.
16. Ganguly, J., Yang, H., and Ghose, S. (1994) Thermal history of mesosiderites: quantitative constraints from compositional zoning and Fe-Mg ordering in orthopyroxenes. Geochimica et Cosmochimica Acta, 58, 2711-2723.
17. 3. ACta Crystallographica, B34, 891-893.
18. Hawthorne, F.C., Ungaretti, L., and Oberti, R. (1995) Site populations in minerals: terminology and presentation of results of crystal-structure refinement. Canadian Mineralogist, 33, 907-911.
19. 2+,Mg fractionation in Johnstown meteoritic orthopyroxene. European Journal of Mineralogy, 12, 163-176.
20. Ibers, J.A. and Hamilton, W.C., Eds. (1974) International Tables for X-ray Crystallography, vol. 4, pp. 99-101. Kynoch Press, Birmingham, U.K.
21. 2+, Mg distribution in orthopyroxene: a critical assessment of its potential as a geospeedometer. European Journal of Mineralogy, 9, 705-733.
22. Larson, A.C. (1970) The inclusion of secondary extinction in least-squares refinement of crystal structures. In F.R. Ahmed, S.R. Hall, and C.P. Huber, Eds., Crystallographic Computing, 291-294. Munsksgaard, Copenhagen.
23. 2+-Mg equilibria in three natural Ca-rich clinopyroxenes. American Mineralogist, 61, 671-676.
24. Merli, M., Cámara, F., Domeneghetti, M.C., and Tazzoli, V. (2002) Leverage analysis of X-ray single crystal diffraction data from orthopyroxene and pigeonite. European Journal of Mineralogy, 14, 773-784.
25. 2+-Mg ordering in augite: experimental study and geothermometric applications. European Journal of Mineralogy, 3, 863-875.
26. Molin, G.M., Saxena, S.K., and Brizi, E. (1991) Iron-magnesium order-disorder in an orthopyroxene crystal from the Johnstown meteorite. Earth and Planetary Science Letters, 105, 260-265.
27. Molin, G.M., Domeneghetti, M.C., Salviulo, G., Stimpfl, M., and Tribaudino, M. (1994) Antarctic FRO90011 Iodranite: cooling history from pyroxene crystal chemistry and microstructure. Earth and Planetary Science Letters, 128, 479-487.
28. Mueller, R.F. (1967) Model for order-disorder kinetics in certain quasi-binary crystals of continuously variable composition. Journal of Physics and Chemistry of Solids, 28, 2239-2243.
29. Mueller, R.F. (1969) Kinetics and thermodynamics of intracrystalline distribution. Mineralogical Society American Special Paper, 2, 83-93.
30. 2+ interdiffusion in olivine (II). Berichte Der Bunsen-Gesellschaft-Physical Chemistry Chemical Physics, 88, 140-145.
31. Pasqual, D., Molin, G., and Tribaudino, M. (2000) Single-crystal thermometric calibration of Fe-Mg order-disorder in pigeonites. American Mineralogist, 85, 953-962.
32. Prewitt, C.T., Brown, G.E., and Papike, J.J. (1971) Apollo 12 clinopyroxenes. High-temperature X-ray diffraction studies. Geochimica and Cosmochimica Acta Supplement, 2, 1, 59-68.
33. 2+ order-disorder and the thermodynamics of the orthopyroxene crystalline solution. American Mineralogist, 56, 532-559.
34. 2+-Mg distribution in aluminous orthopyroxenes. Physics and Chemistry of Minerals, 15, 140-147.
35. 2+-Mg order-disorder in orthopyroxene. Some kinetic results. Physics and Chemistry of Minerals, 16, 421-427.
36. Schlenz, H., Kroll, H., and Phillips, M.W. (2001) Isothermal annealing and continuous cooling experiments on synthetic orthopyroxenes: temperature and time evolution of the Fe,Mg distribution. European Journal of Mineralogy, 13, 715-726.
37. Secco, L., Carbonin, S., Dal Negro, A., Mellini, M., and Piccirillo, E.M. (1988) Crystal chemistry of pyroxenes from basalts and rhyodacites of the Paranà basin (Brazil). In E.M. Piccirillo and A.J. Melfi, Eds., The Mesozoic Flood of the Paranà Basin: Petrogenetic and Geophysical Aspects, p. 51-72. São Paulo University, Brazil.
38. Sheldrick, G.M. (1996) SADABS. Institüt für Anorganische Chemie der Universität, Göttingen, Germany.
39. Skogby, H. (1992) Order-disorder kinetics in orthopyroxenes of ophiolite origin. Contributions to Mineralogy and Petrology, 109, 471-478.
40. 6) and its relation to the fractionation behavior of Mn in Fe, Mg-orthopyroxene. American Mineralogist, 90, 155-161.
41. 2+-Mg order-disorder in orthopyroxene: equilibrium fractionation between the octahedral sites and thermodynamic analysis. Contributions to Mineralogy and Petrology, 136, 297-309.
42. Sueno, S., Kimata, M., and Prewitt, C.T. (1994) The crystal structure of high clinoferrosilite. American Mineralogist, 69, 264-269.
43. Sykes-Nord, J.A. and Molin, G.M. (1993) Mg-Fe order-disorder reaction in Fe-rich orthopyroxene: stractural variation and kinetics. American Mineralogist, 78, 921-931.
44. 6). European Journal of Mineralogy, 14, 549-555.
45. 2+-Mg disorder in heated orthopyroxenes. Mineralogical Society of America, Special Paper, 2, 67-81.
46. 6. American Mineralogist, 79, 633-643.
47. 2+-Mg ordering in orthopyroxene by X-ray single-crystal diffraction. Meteoritics and Planetary Science, 32, 855-862.
48. Zema, M., Domeneghetti, M.C., and Tazzoli, V. (1999) Order-disorder kinetics in orthopyroxene with exsolution products. American Mineralogist, 84, 1895-1901.
49. Zema, M., Tarantino, S.C., Domeneghetti, M.C., and Tazzoli, V. (2003) Ca in orthopyroxene: structural variations and kinetics of the disordering process. European Journal of Mineralogy, 15, 373-380.