Microtextures and crystal chemistry in P21/c pigeonites

Mineralogy and Petrology

Volumn 77, Issue 3-4, 2003, Pages 161-176

  Tribaudino, M ^a   Pasqual, D ^b   Molin, G ^b   Secco, L ^b  

^a UNIVERSITY OF TURIN   (Italy)

^b UNIVERSITY OF PADOVA   (Italy)

Author keywords

[No Author keywords available]

Indexed keywords

CATION; CRYSTAL CHEMISTRY; CRYSTAL STRUCTURE; MICROSTRUCTURE; PIGEONITE; TEXTURE; X-RAY DIFFRACTION;

EID: 0347566108     PISSN: 09300708     EISSN: None     Source Type: Journal    
DOI: 10.1007/s00710-002-0199-y     Document Type: Article

References (26)

1. 2+ -bearing pyroxene. Am Mineral 74: 599-603
2. 1/c clinopyroxenes. Phys Chem Mineral 25: 249-258
3. Carpenter MA (1979) Experimental coarsening of antiphase domains in a silicate mineral. Science 206: 681-683
4. Clark JR, Ross M, Appleman DE (1971) Crystal chemistry of a lunar pigeonite. Am Mineral 56: 888-908
5. Deer WA, Howie RA, Zussman J (1992) An introduction to the rock-forming minerals, 2nd ed. Longman, London
6. 2+ distribution in orthopyroxenes. Am Mineral 70: 987-995
7. Domeneghetti MC, Molin GM, Stimpft M, Tribaudino M (1995) Orthopyroxene from the Serra de Magé meteorite: structure refinement and estimation of C2/c pyroxene contributions to apparent Pbca diffraction violations. Am Mineral 80: 923-929
8. Domeneghetti MC, Tazzoli V, Boffa Ballaran T, Molin GM (1996) Orthopyroxene from the Serra de Magé meteorite: a structure-refinement procedure for a Pbca phase coexisting with a C2/c exsolved phase. Am Mineral 81: 842-846
9. Fuess H, Schröpfer L, Feuer H (1986) Exsolution and phase transformations in synthetic pyroxenes: X-ray and TEM studies at elevated temperatures. Ber Bunsen Phys Chem 90: 755-759
10. Ganguly J, Yang H, Ghose S (1994) Thermal history of mesosiderites: constraints from compositional zoning and Fe-Mg ordering in orthopyroxenes. Geochim Cosmochim Acta 58: 2711-2723
11. Ibers JA, Hamilton WC (eds) (1974) International tables for X-ray crystallography, 4. Kynoch Press, Birmingham, pp 99-101
12. McCallister RH, Nord GL Jr. (1981) Subcalcic diopsides from kimberlites: chemistry, exsolution microstructures, and thermal history. Contrib Mineral Petrol 78: 118-125
13. Morimoto N, Güven N (1970) Refinement of the crystal structure of pigeonite. Am Mineral 55: 1195-1209
14. Morimoto N, Tokonami M (1969) Domain structure of pigeonite and clinoenstatite. Am Mineral 54: 725-740
15. 44 clinopyroxene. Geol Soc Am, Abstracts with Programs 11: 488
16. Ohashi Y (1984) Polysynthetically-twinned structures of enstatite and wollastonite. Phys Chem Mineral 10: 217-229
17. Ohashi Y, Finger LW (1976) The effect of Ca substitution on the structure of clinoenstatite. Carn Inst Wash Year Book 75: 743-746
18. Ohashi Y, Burnham CW, Finger LW (1975) The effect of Ca-Fe Substitution on the clinopyroxene crystal structure. Am Mineral 60: 423-434
19. Papike JJ, Cameron KL, Baldwin K (1974) Amphiboles and pyroxenes: characterization of other than quadrilateral components and estimates of ferric iron from microprobe data. Geol Soc Am, Abstracts with Programs 6: 1053-1054
20. Pasqual D, Molin G, Tribaudino M (2000) Single-crystal thermometric calibration of Fe-Mg order-disorder in pigeonites. Am Mineral 85: 953-962
21. Secco L, Carbonin S, Dal Negro A, Mellini M, Piccirillo EM (1988) Crystal chemistry of pyroxenes from basalts and rhyodacites of the Paranà basin (Brazil). In: Piccirillo EM, Melfi AJ (eds) The mesozoic flood of the Paranà Basin: petrogenetic and geophysical aspects. São Paulo University, Brazil, 600 p
22. Sheldrick GM (1993) Shelxl-93. Program for crystal structure refinement. Göttingen University, Germany
23. 2-. Acta Cryst 19: 486
24. th Symposium on Antarctic Meteorites, pp 206-221
25. 6) join. Am Mineral 85: 707-715
26. 6). Eur J Mineral 14 (in press)