Feedbacks between deformation and melt distribution in the crust-mantle transition zone of the Oman ophiolite

Earth and Planetary Science Letters

Volumn 359-360, Issue , 2012, Pages 61-72

  Higgie, Katherine ^a   Tommasi, Andréa ^a  

^a CNRS   (France)

Author keywords

Crystal preferred orientation; Lithosphere asthenosphere boundary; Melt organization; Oceanic ridge; Olivine deformation; Upper mantle dynamics

Indexed keywords

COMPOSITIONAL CHANGES; CRYSTAL PREFERRED ORIENTATIONS; DISLOCATION CREEP; DRY CONDITION; ENDMEMBERS; HIGH TEMPERATURE; INTERNAL DEFORMATION; LITHOSPHERE-ASTHENOSPHERE BOUNDARY; LOW PRESSURES; MELT DISTRIBUTIONS; MELT FRACTION; METER SCALE; MICRO-STRUCTURAL; OCEANIC RIDGE; OLIVINE CRYSTALS; OMAN OPHIOLITE; STRETCHING LINEATIONS; TRANSITION ZONES; TRANSPRESSION; UPPER MANTLE; VERTICAL SECTION;

DEFORMATION; GRAIN BOUNDARIES; STRUCTURAL GEOLOGY;

OLIVINE;

ASTHENOSPHERE; CRUST-MANTLE BOUNDARY; CRYSTAL STRUCTURE; DEFORMATION; LITHOSPHERIC STRUCTURE; OLIVINE; OPHIOLITE; PLAGIOCLASE; SHEAR STRAIN; TRANSITION ZONE; UPPER MANTLE;

EID: 84868468390     PISSN: 0012821X     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.epsl.2012.10.003     Document Type: Article

References (62)

1. Ben Ismail W., Mainprice D. An olivine fabric database: an overview of upper mantle fabrics and seismic anisotropy. Tectonophysics 1998, 296:145-157.
2. Benn K., Nicolas A., Reuber I. Mantle-crust transition zone and origin of wehrlitic magmas: evidence from the Oman ophiolite. Tectonophysics 1988, 151:75-85.
3. Boudier F. Olivine xenocrysts in picritic magmas - an experimental and microstructural study. Contrib. Mineral. Petrol. 1991, 109:114-123.
4. Boudier F., Nicolas A. Nature of the moho transition zone in the Oman ophiolite. J. Petrol. 1995, 36:777-796.
5. Boudier F., Nicolas A., Ildefonse B. Magma chambers in the Oman ophiolite: fed from the top and the bottom. Earth Planet. Sci. Lett. 1996, 144:239-250.
6. Bunge H.J. Texture Analysis in Materials Sciences 1982, Buttleworth, London.
7. Butler S.L. The effects of buoyancy on shear-induced melt bands in a compacting porous medium. Phys. Earth Planet. Inter. 2009, 173:51-59.
8. Bystricky M., Kunze K., Burlini L., Burg J.-P. High shear strain of olivine aggregates: rheological and seismic consequences. Science 2000, 290:1564-1567.
9. Ceuleneer G., Nicolas A., Boudier F. Mantle flow patterns at an oceanic spreading center: the Oman peridotites record. Tectonophysics 1988, 151:1-26.
10. Dijkstra A.H., Drury M.R., Frijhoff R.M. Microstructures and lattice fabrics in the Hilti mantle section (Oman ophiolite): evidence for shear localization and melt weakening in the crust-mantle transition zone?. J. Geophys. Res. 2002, 107.
11. Drouin M., Godard M., Ildefonse B., Bruguier O., Garrido C.J. Geochemical and petrographic evidence for magmatic impregnation in the oceanic lithosphere at Atlantis Massif, Mid-Atlantic Ridge (IODP Hole U1309D, 30°N). Chem. Geol. 2009, 264:71-88.
12. Dunn R.A., Lekic V., Detrick R.S., Toomey D.R. Three-dimensional seismic structure of the Mid-Atlantic Ridge (35N): evidence for focused melt supply and lower crustal dike injection. J. Geophys. Res. 2005, 110:B09101. 10.1029/2004JB003473.
13. Dunn R.A., Toomey D.R., Solomon S.C. Three-dimensional seismic structure and physical properties of the crust and shallow mantle beneath the East Pacific Rise at 9°30'N. J. Geophys. Res. 2000, 105:23537-23555.
14. Durham W.B., Goetze C. Plastic flow of orientated single crystals of olivine 1; Mechanical data. J. Geophys. Res. 1977, 82:5737-5753.
15. Fleet M.E. Preferred crystallographic orientation for crystallisation under nonhydrostatic stress. Phys. Status Solidi (a) 1983, 76:151-156.
16. Godard M., Jousselin D., Bodinier J.-L. Relationships between geochemistry and structure beneath a palaeo-spreading center: a study of the mantle section in the Oman ophiolite. Earth Planet. Sci. Lett. 2000, 180:133-148.
17. Holtzman B.K., Groebner N.J., Zimmerman M.E., Ginsberg S.B., Kohlstedt D.L. Stress-driven melt segregation in partially molten rocks. Geochem. Geophys. Geosyst. 2003, 4:8607. 10.1029/2001GC000258.
18. Holtzman B.K., Kendall J.M. Organized melt, seismic anisotropy, and plate boundary lubrication. Geochem. Geophys. Geosyst. 2010, 11:Q0AB06. 10.1029/2010GC003296.
19. Holtzman B.K., Kohlstedt D.L. Stress-driven melt segregation and strain partitioning in partially molten rocks: effects of stress and strain. J. Petrol. 2007, 48:2379-2406.
20. Holtzman B.K., Kohlstedt D.L., Morgan J.P. Viscous energy dissipation and strain partitioning in partially molten rocks. J. Petrol. 2005, 46:2569-2592.
21. Holtzman B.K., Kohlstedt D.L., Zimmerman M.E., Heidelbach F., Hiraga T., Hustoft J. Melt segregation and strain partitioning: implications for seismic anisotropy and mantle flow. Science 2003, 301:1227-1230.
22. Ildefonse, B., Mainprice, D., de Burgos, C.M.G., 2002. Crystallographic preferred orientations and seismic properties of gabbroic rocks. AGU meeting, San Francisco.
23. Ildefonse B., Nicolas A., Boudier F. Evidence from the Oman ophiolite for active mantle upwelling beneath a fast-spreading ridge. Nature 1993, 370:51-53.
24. Jousselin D., Morales L.F.G., Nicolle M., Stephant A. Gabbro layering induced by simple shear in the Oman ophiolite moho transition zone. Earth Planet. Sci. Lett. 2012, 331-332:55-66.
25. Jousselin D., Nicolas A. The Moho transition zone in the Oman ophiolite-relation with wehrlites in the crust and dunites in the mantle. Mar. Geophys. Res. 2000, 21:229-241.
26. Jousselin D., Mainprice D. Melt topology and seismic anisotropy in mantle peridotites of the Oman ophiolite. Earth Planet. Sci. Lett. 1998, 164:553-568.
27. Jung H., Karato S.-i. Water-induced fabric transitions in olivine. Science 2001, 293:1460-1463.
28. Kaczmarek M.-A., Tommasi A. Anatomy of an extensional shear zone in the mantle, Lanzo massif, Italy. Geochem. Geophys. Geosyst. 2011, 12:Q0AG06. 10.1029/2011GC003627.
29. Kaczmarek M.-A., Müntener O. Juxtaposition of melt impregnation and high temperature shear zone in the upper mantle: field and petrological constraints from the Lanzo peridotite (N-Italy). J. Petrol. 2008, 49:2187-2220.
30. Kamb W.B. Theory of preferred crystal orientation developed by crystallization under stress. J. Geol. 1959, 67:153-170.
31. Katz R.F., Spiegelman M., Holtzman B. The dynamics of melt and shear localization in partially molten aggregates. Nature 2006, 442:676-679.
32. Kawakatsu H., Kumar P., Takei Y., Shinohara M., Kanazawa T., Araki E., Suyehiro K. Seismic evidence for sharp lithosphere-asthenosphere boundaries of oceanic plates. Science 2009, 324:499-502.
33. Kelemen P.B., Dick H.J.B. Focused melt flow and localized deformation in the upper mantle: juxtaposition of replacive dunite and ductile shear zones in the Josephine peridotite, SW Oregon. J. Geophys. Res. 1995, 100:423-438.
34. Kelemen P.B., Koga K., Shimizu N. Geochemistry of gabbro sills in the crust-mantle transition zone of the Oman ophiolite: implications for the origin of the oceanic lower crust. Earth Planet. Sci. Lett. 1997, 146:475-488.
35. Kendall J.M., Stuart G., Ebinger C., Bastow I., Keir D. Magma-assisted rifting in Ethiopia. Nature 2005, 433:146-148.
36. King D.S.H., Zimmerman M.E., Kohlstedt D.L. Stress-driven melt segregation in partially molten olivine-rich rocks deformed in torsion. J. Petrol. 2010, 51:21-42.
37. Kohlstedt D.L., Zimmerman M.E. Rheology of partially molten mantle rocks. Ann. Rev. Earth Planet. Sci. 1996, 24:41-62.
38. Korenaga J., Kelemen P.B. Origin of gabbro sills in the Moho transition zone of the Oman ophiolite: implications for magma transport in the oceanic lower crust. J. Geophys. Res. 1997, 102:27729-27749.
39. Le Roux V., Bodinier J.L., Tommasi A., Alard O., Dautria J.M., Vauchez A., Riches A.J.V. The Lherz spinel lherzolite: refertilized rather than pristine mantle. Earth Planet. Sci. Lett. 2007, 259:599-612.
40. Le Roux V., Tommasi A., Vauchez A. Feedback between melt percolation and deformation in an exhumed lithosphere-asthenosphere boundary. Earth Planet. Sci. Lett. 2008, 274:401-413.
41. Mainprice D. Modelling the anisotropic seismic properties of partially molten rocks found at mid-ocean ridges. Tectonophysics 1997, 279:161-179.
42. Mainprice D., Ismail W.B., Wagner F. The relationship between olivine textures and seismic anisotropy in a database of upper mantle rocks. Texture and Anisotropy of Polycrystals 1998, pp. 681-686. R.A. Schwarzer (Ed.).
43. Mainprice D., Tommasi A., Couvy H., Cordier P., Frost D.J. Pressure sensitivity of olivine slip systems and seismic anisotropy of Earth's upper mantle. Nature 2005, 433:731-733.
44. Morales L.F.G., Boudier F., Nicolas A. Microstructures and crystallographic preferred orientation of anorthosites from Oman ophiolite and the dynamics of melt lenses. Tectonics 2011, 30:TC2011. 10.1029/2010TC002697.
45. Nicolas A., Boudier F., Ildefonse B., Ball E. Accretion of Oman and United Arab Emirates ophiolite - discussion of a new structural map. Mar. Geophys. Res. 2000, 21:147-180.
46. Rabinowicz M., Ceulener G., Nicolas A. Melt segregation and flow in mantle diapirs below spreading centers: evidence from the Oman ophiolite. J. Geophys. Res. 1987, 92:3475-3486.
47. Rosenberg C.L., Handy M.R. Syntectonic melt pathways during simple shearing of a partially molten rock analogue (Norcamphor-Benzamide). J. Geophys. Res. 2000, 105:3135-3149.
48. Rosenberg C.L., Handy M.R. Experimental deformation of partially melted granite revisited: implications for the continental crust. J. Metam. Geol. 2005, 23:19-28.
49. Rychert C.A., Fischer K.M., Rondenay S. A sharp lithosphere-asthenosphere boundary imaged beneath eastern North America. Nature 2005, 436:542-545.
50. Scott T., Kohlstedt D.L. The effect of large melt fraction on the deformation behavior of peridotite. Earth Planet. Sci. Lett. 2006, 246:177-187.
51. Soustelle V., Tommasi A., Bodinier J.L., Garrido C.J., Vauchez A. Deformation and reactive melt transport in the mantle lithosphere above a large-scale partial melting domain: the Ronda Peridotite Massif, Southern Spain. J. Petrol. 2009, 50:1235-1266.
52. Takei Y. Deformation-induced grain boundary wetting and its effects on the acoustic and rheological properties of partially molten rock analogue. J. Geophys. Res. 2005, 110:B12203. 10.1029/2005JB003801.
53. Takei Y., Holtzman B.K. Viscous constitutive relations of solid-liquid composites in terms of grain boundary contiguity: 3. Causes and consequences of viscous anisotropy. J. Geophys. Res. 2009, 114:B06207. 10.1029/2008JB005852.
54. Tommasi A., Vauchez A., Fernandes L.A.D., Porcher C.C. Orogen-parallel strike-slip faulting and synkinematic magmatism in the Dom Feliciano Belt, Southern Brazil. Tectonics 1994, 13:421-437.
55. Tommasi A., Tikoff B., Vauchez A. Upper mantle tectonics: three-dimensional deformation, olivine crystallographic fabrics and seismic properties. Earth Planet. Sci. Lett. 1999, 168:173-186.
56. Tommasi A., Knoll M., Vauchez A., Signorelli J., Thoraval C., Logé R. Structural reactivation in plate tectonics controlled by olivine crystal anisotropy. Nat. Geosci. 2009, 2:423-427.
57. Tommasi A., Mainprice D., Canova G., Chastel Y. Viscoplastic self-consistent and equilibrium-based modeling of olivine lattice preferred orientations: implications for the upper mantle seismic anisotropy. J. Geophys. Res. 2000, 105:7893-7908.
58. Tommasi A., Vauchez A., Godard M., Belley F. Deformation and melt transport in a highly depleted peridotite massif from the Canadian Cordillera: implications to seismic anisotropy above subduction zones. Earth Planet. Sci. Lett. 2006, 252:245-259.
59. Vauchez A., Tommasi A., Barruol G., Maumus J. Upper mantle deformation and seismic anisotropy in continental rifts. Phys. Chem. Earth Pt. A 2000, 25:111-117.
60. Vollmer F.W. An application of eigenvalue methods to structural domain analysis. Geol. Soc. Am. Bull. 1990, 102:786-791.
61. Zimmerman M.E., Zhang S., Kohlstedt D.L., Karato S. Melt distribution in mantle rocks deformed in shear. Geophys. Res. Lett. 1999, 26:1505-1508.
62. Zhang S., Karato S. Lattice preferred orientation of olivine deformed in simple shear. Nature 1995, 375:774-777.