Gauging stress from mantle chromitite pods in the Oman ophiolite

Special Paper of the Geological Society of America

Volumn 349, Issue , 2000, Pages 149-158

  Holtzman, Benjamin ^a  

^a UNIVERSITY OF MINNESOTA   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

CHROMITE; CREEP; ELASTOPLASTICITY; NUMERICAL MODELS; STRAIN RATE; STRUCTURAL GEOLOGY;

CREEP MECHANISM; DISLOCATION CREEP; ELASTIC-PLASTIC; FRACTURE GEOMETRIES; MECHANICAL INTERACTIONS; MID-OCEAN RIDGES; POLYCRYSTALLINE; UPPERMOST MANTLE;

FRACTURE;

CHROMITITE; DISLOCATION CREEP; MANTLE CONVECTION; MID-OCEAN RIDGE; OPHIOLITE; UPPER MANTLE; VISCOELASTICITY;

OMAN;

EID: 84871022948     PISSN: 00721077     EISSN: None     Source Type: Book Series    
DOI: 10.1130/0-8137-2349-3.149     Document Type: Article

References (39)

1. Board, M., 1989, FLAC (Fast Lagrangian Analysis of Continua) Version 2.20: Software Summary: Minneapolis, Itasca Consulting Group, Inc., v. 1.
2. Boudier, F., Nicolas, A., Ildefonse, B., and Jousselin, D., 1997: EPR microplates, a model for the Oman Ophiolite: Terra Nova, v. 9, p. 79-82.
3. Cassard, D., Nicolas, A., Rabinovitch, M., Moutte, J., Leblanc, M., and Prinzhofer, A., 1981, Structural classification of chromite pods in southern New Caledonia: Economic Geology, v. 76, p. 805-831. (Pubitemid 12443082)
4. Ceuleneer, G., and Nicolas, A., 1985, Structures in podiform chromite from the Maqsad district (Sumail ophiolite, Oman): Mineralium Deposita v. 20, p. 177-185. (Pubitemid 15581466)
5. Ceuleneer, G., and Rabinowicz, M., 1992. Mantle flow and melt migration beneath oceanic ridges: Models derived from observations in ophiolites, in Phipps Morgan, J., Blackman, D.K., and Sinton, J.M., eds., Mantle flow and melt generation at mid-ocean ridges: Washington, D.C., American Geophysical Union, Geophysical Monograph 71, 361 p.
6. Christiansen, F.G., 1985, Deformation fabric and microstructures in ophiolitic chromitites and host ultramafics, Sultanate of Oman: Geologische Rundschau v. 74, n.1, p. 64-76.
7. Clyne, T.W., and Withers, P.J., 1993, An introduction to metal matrix composites: Cambridge, UK, Cambridge University Press, 509 p.
8. Cox, H.L., 1952, The elasticity and strength of paper and other fibrous materials: British Journal of Applied Physics, v. 3, p. 73-79.
9. Cundall, P.A., and Board, M., 1988, A microcomputer program for modeling largestrain plasticity problems: Proceedings of the 6th International Congress on Numerical Methods in Geomechanics, Rotterdam, Swoboda, p. 2101-2108.
10. Eidelman, A., and Reches, Z., 1992, Fractured pebbles: A new stress indicator: Geology, v. 20, p. 307-310.
11. Eshelby, J.D., 1957, The determination of the elastic field of an ellipsoidal inclusion, and related problems: Proceedings of the Royal Society of London, v. A241, p. 376-396.
12. Ghosh, A., White, K.W., Jenkins, M.G., Kobayashi, A.S., and Bradt, R.C., 1991, Fracture resistance of a transparent magnesium aluminate spinel: Journal of the American Ceramic Society, v. 74, n. 7, p. 1624-1630.
13. Hassani, R., Jongmans, D., and Chery, J., 1997, Study of plate deformation and stress in subduction processes using two-dimensional numerical models: Journal of Geophysical Research, v. 102, n. B8, p. 17951-17965.
14. Hirth, G., and Kohlstedt, D.L., 1995a, Experimental constraints on the dynamics of the partially molten upper mantle: Deformation in the diffusion creep regime: Journal of Geophysical Research, v. 100, p. 1981-2001.
15. Hirth, G., and Kohlstedt, D.L., 1995b. Experimental constraints on the dynamics of the partially molten upper mantle. 2. Deformation in the dislocation creep regime: Journal of Geophysical Research, v. 100, n. B8, p. 15441-15449.
16. Hirth, G., and Kohlstedt, D.L., 1996, Water in the oceanic upper mantle: Implications for rheology, melt extraction, and the evolution of the lithosphere: Earth and Planetary Science Letters, v. 144, p. 93-108.
17. Irvine, T.N., 1977, Origin of chromitite layers in th Muskox intrusion and other intrusions: a new interpretation: Geology, v. 5, p. 273-277.
18. Ji, S., and Zhao, P., 1993, Location of tensile fractures within rigid-brittle inclusions in a ductile flowing matrix: Tectonophysics, v. 220, p. 23-31.
19. Jousselin, D., Nicolas, A., and Boudier, F., 1998, Detailed mapping of a mantle diapir below a paleo-spreading center in the Oman ophiolite: Journal of Geophysical Research, v. 103, n. B8, p. 18153-18170.
20. Karato, S.-I., Toriumi, M., and Fujii, T., 1980, Dynamic recrystallization of olivine single crystals during high temperature creep: Geophysical Research Letters, v. 7, n. 9, p. 649-652.
21. Karato, S., Paterson, M.S., and Fitzgerald, J.D., 1986, Rheology of synthetic olivine aggregates: Influence of grain size and water: Journal of Geophysical Research, v. 19, n. B8, p. 8151-8176.
22. Kelemen, P.B., Hirth, G., Shimizu, N., Speigelman, M., and Dick, H.J.B., 1997, A review of melt migration processes in the adiabatically upwelling mantle beneath oceanic spreading ridges: Philosophical Transactions of the Royal Society of London, v. A355, p. 283-318.
23. Kenkmann, T., and Dresen, G., 1998. Stress gradients around porphyroclasts: Palaeopiezometric estimates and numerical modelling: Journal of Structural Geology, v. 20, n. 2/3, p. 163-173.
24. Lago, B.L., Rabinowicz, M., and Nicolas, A., 1982, Podiform chromite ore bodies: A genetic model: Journal of Petrology, v. 23, n. 1, p. 103-125.
25. Lawn, B., 1993, Fracture of brittle solids, Cambridge, UK, Cambridge University Press, 378 p.
26. Leblanc, M., and Ceuleneer, G., 1992, Chromite crystallization in a multicellular flow: Evidence from a chromitite dike in the Oman ophiolite: Lithos, v. 27, p. 231-257.
27. Masuda, T., and Ando, S., 1988, Viscous flow around a rigid spherical body: A hydrodynamical approach: Tectonophysics, v. 148, p. 337-346.
28. Masuda, T., and Kuriyama, M., 1988, Successive "mid-point" fracturing during micro-boudinage: An estimate of the stress-strain relation during a natural deformation: Tectonophysics, v. 147, p. 171-177.
29. McKenzie, D.P., 1984, The generation and compaction of partially molten rock: Journal of Petrology, v. 25, n. 3, p. 713-765.
30. Nicolas, A. 1989, Structures of ophiolites and dynamics of oceanic lithosphere: Dordrecht, Netherlands, Kluwer Academic Publishers, 367 p.
31. Nicolas, A., Boudier, F., and Ildefonse, B., 1996, Variable crustal thickness in the Oman ophiolite: Implications for oceanic crust: Journal of Geophysical Research, v. 101, n. B8, p. 17941-17950.
32. Ozawa, K., 1989, Stress-induced Al-Cr zoning of spinel in deformed peridotites: Nature, v. 338, no. 6211, p. 141-144. (Pubitemid 19312752)
33. Ramberg, H., 1955, Natural and experimental boudinage and pinch and swell structures: Journal of Geology, v. 63, p. 512-526.
34. Secher, D., 1981, Les lherzolites ophiolitiques de Nouvelle Caledonie et leurs gisements de chromite: Déformation de la chromite [Thèse 3eme cycle]: l'Universite de Nantes, France, 250 p.
35. Simmons, G., and Wang, H., 1971, Single crystal elastic constants and calculated aggregate properties: A handbook: Cambridge, Massachusetts, MIT Press, 370 p.
36. Ten, A., and Yuen, D.A., 1999, Time-dependent formation of mantled inclusion structures for different rheologies under simple shear: Earth and Planetary Science Letters, v. 165, p. 25-35. (Pubitemid 29423141)
37. Wang, X., and Cochran, J., 1993. Gravity anomalies, isostasy, and mantle flow at the East Pacific Rise crest: Journal of Geophysical Research, v. 98, n. B11, p. 19505-19531.
38. Zhou, M.-F., Robinson, P.T., and Bai, W.-J., 1994, Formation of podiform chromitites by melt/rock interaction in the upper mantle: Mineralium Deposita, v. 29, p. 98-101. (Pubitemid 24427319)
39. Zimmerman, M.E., 1999, The structure and rheology of partially molten mantle rocks [Ph.D. thesis]: University of Minnesota, 159 p.