Transformation of titanomagnetite to titanomaghemite: A slow, two-step, oxidation-ordering process in MORB

American Mineralogist

Volumn 82, Issue 11-12, 1997, Pages 1101-1110

  Xu, Weixin ^a   Peacor, Donald R ^a   Dollase, Wayne A ^b   Van Der Voo, Rob ^a   Beaubouef, Rick ^c,d  

^a UNIVERSITY OF MICHIGAN   (United States)

^b UNIVERSITY OF CALIFORNIA   (United States)

^c UNIVERSITY OF HOUSTON   (United States)

^d EXXONMOBIL UPSTREAM RESEARCH COMPANY   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

CRYSTAL STRUCTURE; CRYSTALS; DIFFUSION IN SOLIDS; IRON METALLOGRAPHY; OXIDATION; RIETVELD REFINEMENT; TITANIUM METALLOGRAPHY; TITANIUM OXIDES;

IRON TITANIUM OXIDES; MAGNETIC IRON OXIDES; NEOCRYSTALLIZATION; OCTAHEDRAL CATION; ORDERING OF VACANCY; SOLID-STATE DIFFUSION; SUPERSTRUCTURE REFLECTIONS; TITANOMAGNETITES;

IRON OXIDES;

BASALTS; MAGHEMITIZATION; MAGNETIC MINERALS; MORB; OXIDATION; PHASE TRANSFORMATION; PILLOW BASALT; TITANIUM COMPOUNDS; TITANOMAGHEMITE; TITANOMAGNETITE;

ATLANTIC;

EID: 0031423307     PISSN: 0003004X     EISSN: None     Source Type: Journal    
DOI: 10.2138/am-1997-11-1207     Document Type: Article

References (46)

1. Banerjee, S.K. (1991) Magnetic properties of Fe-Ti oxides. In Mineralogical Society of America Reviews in Mineralogy, 25, 107-128.
2. Banfield, J.F., Wasilewski, P.J., and Veblen, D.R. (1994) TEM study of relationships between the microstructures and magnetic properties of strongly magnetized magnetite and maghemite. American Mineralogist, 79, 654-667.
3. Beaubouef, R.T. Jr. (1993) Three case studies in the application of paleomagnetic and rock magnetic techniques to geologic problems: 1. 15° 20′ fracture zone, Atlantic Ocean, 2. Tauride Mountains, southern Turkey, and 3. Port au Port Peninsula, western Newfoundland, 287 p. Ph.D. thesis, University of Houston, Houston, Texas.
4. Beske-Diehl, S.J. (1990) Magnetization during low-temperature oxidation of seafloor basalts: no large scale chemical remagnetization. Journal of Geophysical Research, 95, 21,413-21,432.
5. Bleil, U. and Petersen, N. (1977) Magnetic properties of basement rocks, Leg 37, Site 332. In Initial Reports DSDP, 37, Washington, 446-456.
6. _ (1983) Variation in magnetization intensity and low-temperature titanomagnetite oxidation of ocean floor basalts. Nature, 301, 384-388.
7. 3 microcrystals: vacancy distribution and structure. Journal of Solid State Chemistry, 48, 21-32.
8. Collyer, S., Grimes, N.W., Vaughan, D.J., and Longworth, G. (1988) Studies of the crystal structure and crystal chemistry of titanomaghemite. American Mineralogist, 73, 153-160.
9. Fukasawa, T., Iwatsuki, M., and Furukawa, M. (1993) State analysis and relationship between lattice constants and compositions including minor elements of synthetic magnetite and maghemite. Analytica Chimica Acta, 281, 413-419.
10. Furuta, T. (1993) Magnetic properties and ferromagnetic mineralogy of oceanic basalts. Geophysical Journal International, 113, 95-114.
11. 6. Zeitschrift Für Kristallographie, Kristallgeometrie, Kristallphysik, Kristallchemie, 122, 81-99.
12. 3, and their relationship to structure. Physics and Chemistry of Minerals, 16, 164-171.
13. 3. Journal of Solid State Chemistry, 49, 325-333.
14. Irving, E. (1970) The mid-Atlantic ridge at 45° N XIV. Oxidation and magnetic properties of basalt: Review and discussion. Canadian Journal of Earth Sciences, 7, 1528-153.
15. Jiang, W.-T., Peacor, D.R., Merriman, R.J., and Roberts, B. (1990) Transmission and analytical electron microscopic study of mixed-layer illite/ smectite formed as an apparent replacement product of diagenetic illite. Clays and Clay Minerals, 38, 449-468.
16. Lindsley, D.H. (1976) The crystal chemistry and structure of oxide minerals as exemplified by the Fe-Ti oxides. In Mineralogical Society of America Reviews in Mineralogy, 3, L1-L88.
17. Kelso, P.R., Banerjee, S.K., and Worm, H-U. (1991) The effect of low-temperature hydrothermal alteration on the remanent magnetization of synthetic titanomagnetites: A case for acquisition of chemical remanent magnetization. Journal of Geophysical Research, 96, 19,545-19,553.
18. Marshall, M. and Cox, A. (1972) Magnetic changes in pillow basalt due to sea floor weathering. Journal of Geophysical Research, 77, 6459-6469.
19. Moskowitz, B.M. (1987) Towards resolving the inconsistencies in characteristic physical properties of synthetic titanomaghemites. Physics of the Earth and Planetary Interiors, 46, 173-183.
20. Moskowitz, B.M. and Banerjee, S.K. (1981) A comparison of the magnetic properties of synthetic titanomaghemites and some oceanic basalts. Journal of Geophysical Research, 86, 11,869-11,882.
21. Nishitani, T. and Kono, M. (1982) Grain size effects on the low-temperature oxidation of titanomagnetite. Journal of Geophysics, 50, 137-142.
22. _ (1983) Curie temperature and lattice constant of oxidized titanomagnetite. Geophysical Journal of the Royal Astronomical Society, 74, 585-600.
23. 4. Physics and Chemistry of Minerals, 20, 541-555.
24. O'Reilly, W. (1983) The identification of titanomagnetites: Model mechanisms for the maghemitization and inversion process and their magnetic consequences. Physics of the Earth and Planetary Interiors, 31, 65-76.
25. O'Reilly, W. and Banerjee, S.K. (1967) The mechanism of oxidation in titanomagnetites: A magnetic study. Mineralogical Magazine, 36, 29-37.
26. Ozima, M. and Ozima, M. (1971) Characteristic thermomagnetic curve in submarine basalts. Journal of Geophysical Research, 76, 2051-2056.
27. Ozima, M. and Sakamoto, N. (1971) Magnetic properties of synthesized titanomaghemite. Journal of Geophysical Research, 76, 7035-7046.
28. Ozima, M., Joshima, M., and Kinoshita, H. (1974) Magnetic properties of submarine basalts and the implications on the structure of the oceanic crust. Journal of Geomagnetism and Geoelectricity, 26, 335-354.
29. Pankhurst, Q.A. and Pollard, R.J. (1993) Applied field Mössbauer spectroscopy of magnetic powders. In G.J. Long and F.G. GrandJean, Eds., Mössbauer spectroscopy applied to magnetism and material science, vol. 1, p. 77-113. Plenum Press, New York.
30. Pariso, J.E. and Johnson, H.P. (1991) Alteration processes at deep sea drilling project/ocean drilling program hole 504B at the Costa Rica rift: Implications for magnetization of oceanic crust. Journal of Geophysical Research, 96B, 11,703-11,722.
31. 6. American Mineralogist, 138, 337-342.
32. Petersen, N. and Vali, H. (1987) Observation of shrinkage cracks in ocean floor titanomagnetite. Physics of Earth and Planetary Interiors, 46, 197-205.
33. Petersen, N., Eisenach, P., and Bleil, U. (1979) Low temperature alteration of the magnetic minerals in ocean floor basalts. In C.G.A. Harrison, M. Talwani, and D. Hayes, Eds., Deep drilling results in the Atlantic ocean: Ocean crust, 2, p. 169-209. American Geophysical Union, Washington, DC.
34. Price, G.D. and Putnis, A. (1979) Oxidation phenomena in pleonaste bearing titanomagnetites. Contributions to Mineralogy and Petrology, 69, 355-159.
35. 4. Journal of Geomagnetism and Geoelectricity, 69-90.
36. Ryall, R.J.C. and Hall, J.M. (1979) Laboratory attention of titanomagneites in submarine pillow lavas. Canadian Journal of Earth Science, 16, 496-504.
37. Senderov, E., Dogan, A.U., and Navrotsky, E. (1993) Nonstoichiometry of magnetite-ulvöspinel solid solutions quenched from 1300°C. American Mineralogist, 78, 565-573.
38. Smith, B.M. (1987) Consequences of the maghemitization on the magnetic properties of submarine basalts: Synthesis of previous works and results concerning basement rocks from mainly D.S.D.P. Legs 51 and 52, Physics of the Earth and Planetary Interiors, 46, 206-226.
39. Smith, P.P.K. (1979) The observation of enantiomorphous domains in a natural maghemite. Contributions to Mineralogy and Petrology, 69, 249-254.
40. Somboonsuk, K. and Trivedi, R. (1985) Dynamical studies of dendritic growth. Acta Metallurgica, 33, 1051-1060.
41. Toman, K. and Fruch, A.J. (1973) On the centrosymmetry of intermediate plagioclases. Zeitschrift Fuer Kristallographie, Kristallgeometrie, Kristallphysik, Kristallchemie, 138, 337-342.
42. Waychunas, G.A. (1991) Crystal chemistry of oxides and oxyhydroxides. In Mineralogical Society of America Reviews in Mineralogy, 25, 11-68.
43. Wiles, D.B. and Young, R. (1981) A new computer program for Rietveld analysis of X-Ray powder diffraction patterns. Journal of Applied Crystallography, 14, 149-151.
44. Xu, W., Van der Voo, R., Peacor, D.R., and Beaubouef, R. (1994) Maghemitization of titanomagnetic in dredged pillow basalts from the Atlantic ocean (abs.). Eos, 75, S126.
45. Xu, W., Peacor, D.R., Van der Voo, R., Dollase, W.A., and Beaubouef, R. (1995) Alteration of fine-grained titanomagnetite in the interstitial glass of pillow basalts from the Atlantic ocean: A component of the decrease in NRM intensity with aging (abs). Eos, 76, S99.
46. 3. Geophysical Research Letters, 23, 2811-2814.