Crystallographic-magnetic correlations in single-crystal haemo-ilmenite: New evidence for lamellar magnetism

Geophysical Journal International

Volumn 165, Issue 1, 2006, Pages 17-31

  Robinson, Peter ^a,d   Heidelbach, F ^b   Hirt, A M ^c   McEnroe, S A ^a   Brown, L L ^d  

^a GEOLOGICAL SURVEY OF NORWAY   (Norway)

^b UNIVERSITÄT BAYREUTH   (Germany)

^c ETH ZURICH   (Switzerland)

^d UNIVERSITY OF MASSACHUSETTS   (United States)

Author keywords

Anisotropy of magnetic susceptibility; Electron backscatter diffraction; Haematite; Haemo ilmenite; Lamellar magnetism; Natural remanent magnetization

Indexed keywords

HEMATITE; NATURAL REMANENT MAGNETIZATION;

EID: 33645068588     PISSN: 0956540X     EISSN: 1365246X     Source Type: Journal    
DOI: 10.1111/j.1365-246X.2006.02849.x     Document Type: Article

References (29)

1. Adams, B.L., Wright, S.I. & Kunze, K., 1993. Orientation imaging: the emergence of a new microscopy, Metal. Trans., 24A, 819-833.
2. Alam, M.N., Blackman, M. & Pashley, D.W., 1954. High-angle Kikuchi patterns, Roy. Soc. London Proc., 221, 224-242.
3. Bascou, J., Raposo, M.I.B., Vauchez, A. & Egydio-Silva, M., 2002. Titanohematite lattice-preferred orientation and magnetic anisotropy in high-temperature mylonites, Earth Planet. Sci. Lett., 198, 77-92.
4. Besser, P.J., Morrish, A.H. & Searle, C.W., 1967. Magnetocrystalline anisotropy of pure and doped hematite, Phys. Rev., 153, 632-640.
5. Bingen, B., Davis, W.J. & Austrheim, H., 2001. Zircon U-Pb geochronology in the Bergen arc eclogites and their Proterozoic protoliths, and implications for the pre-Scandian evolution of the Caledonides in western Norway, Geol. Soc. Am. Bull., 113, 640-649.
6. Duchesne, J-C., 1999. Fe-Ti deposits in Rogaland anorthosites (South Norway): Geochemical characteristics and problems of interpretation, Mineralium Deposita, 34, 182-198.
7. Duchesne, J-C. & Schiellerup, H., 2001. The iron-titanium deposits, in Duchesne, J-C., ed. The Rogaland Intrusive Massifs- an excursion guide, NGU (Geological Survey of Norway) Report 2001.29, 56-75.
8. Dzialoshinskii, I., 1958. A thermodynamic theory of 'weak' ferromagnetism of antiferromagnetics, J. Phys. Chem. Sol., 4, 241-255.
9. Feinberg, J.M., Wenk, H.-R., Renne, P.R. & Scott, G.R., 2004. Epitaxial relationships of clinopyroxene-hosted magnetite determined using electron backscatter diffraction (EBSD) technique, Am. Min., 89, 462-466.
10. Fynn, G.W. & Powell, W.J.A., 1979. The Cutting and Polishing of Electro-optical Materials, 2nd edn, 230 pp., Bristol, GBR, Adam Hilger.
11. Harrison, R.J., 2006. Microstructure and magnetism in the ilmenite-hematite solid solution: A Monte Carlo simulation study, Am. Min., in press.
12. Harrison, R.J. & Becker, U., 2001. Magnetic ordering in solid solutions, Europ. Min. U. Notes Min., 3, 349-383.
13. Hrouda, F., 2002. Low-field variation of magnetic susceptibility and its effect on the anisotropy of magnetic susceptibility of rocks, Geophys. J. Inter., 150, 715-723.
14. Jelinek, V., 1978. Statistical processing of magnetic susceptibility measured on groups of specimens, Stud. Geophys. Geod., 22, 50-62.
15. Kasama, T., McEnroe, S.A., Ozaki, N., Kogure, T. & Putnis, A., 2004. Effects of nanoscale exsolution in hematite-ilmenite on the acquisition of stable natural remanent magnetization. Earth Planet. Sci. Lett., 224, 461-475.
16. Krause, H., Gierth, E. & Schott, W., 1985. Fe-Ti deposits in the south Rogaland igneous complex, especially in the anorthosite massif of Åna-Sira, NGU Bulletin, 402, 25-37.
17. Lowrie, W., Channell, J.E.T. & Heller, F., 1980. On the credibility of paleomagnetic measurements, Geophys. J. R. Astr. Soc., 60, 493-496.
18. McEnroe, S.A. & Brown, L.L., 2000. A closer look at remanence-dominated aeromagnetic anomalies: Rock-magnetic properties and magnetic mineralogy of the Russell Belt microcline-sillimanite gneiss, Northwest Adirondack Mountains, New York, J. Geophys. Res., 105, 16 437 -16 456.
19. McEnroe, S.A., Harrison, R.J., Robinson, P., Golla, U. & Jercinovic, M.J., 2001a. The effect of fine-scale microstructures in titanohematite on the acquisition and stability of NRM in granulite facies metamorphic rocks from Southwest Sweden: Implications for crustal magnetism, J. Geophys. Res., 106, 30 523 -30 546.
20. McEnroe, S.A., Robinson, P. & Panish, P.T., 2001b. Aeromagnetic anomalies, magnetic petrology and characterization of ilmenite-and magnetic-rich cumulates of the Sokndal region, Rogaland, Norway, Am. Min., 86, 1447-1468.
21. McEnroe, S.A., Harrison, R.J., Robinson, P. & Langenhorst, F., 2002. Nanoscale haematite-ilmenite lamellae in massive ilmenite rock: An example of 'Lamellar Magnetism' with implications for planetary magnetic anomalies, Geophys. J. Inter., 151, 890-912.
22. McEnroe, S.A. Langenhorst, F., Robinson, P., Bromiley G. & Shaw, C., 2004a. What's magnetic in the lower Crust?Earth Planet. Sci. Lett., 226, 175-192.
23. McEnroe, S.A., Skilbrei, J.R., Robinson, P., Heidelbach, F., Langenhorst, F. & Brown, L.L. 2004b. Magnetic anomalies, layered intrusions and Mars, Geophys. Res. Lett., 31, L19601, doi:10.1029/ 2004GL020640.
24. McEnroe, S.A. et al., 2005. Lamellar magnetism: Effects of interface versus exchange interactions of nanoscale exsolutions in the ilmenite-hematite system, J. Phys. Conf. Ser., 17, 154-167.
25. Morrish, A.H., 1994. Canted Antiferromagnetic Hematite, World Scientific Publishing Co. Ltd., Singapore, 173 pp.
26. Robinson, P., Panish, P.T. & McEnroe, S.A., 2001. Minor element chemistry of haemo-ilmenite- and magnetite-rich cumulates from the Sokndal region, south Rogaland, Norway, Am. Min., 86, 1469-1476.
27. Robinson, P., Harrison, R.J., McEnroe, S.A. & Hargraves, R.B., 2002. Lamellar magnetism in the haematite-ilmenite series as an explanation for strong remanent magnetization, Nature, 418, 517-520.
28. Robinson, P., Harrison, R.J., McEnroe, S.A. & Hargraves, R.B., 2004. Nature and origin of lamellar magnetism in the hematite-ilmenite series, Am. Min., 89, 725-747.
29. 3+ charge ordering in contact layers of lamellar magnetism: bond valence arguments, Am. Min., 91, 67-72.