Pyroxenites from the Southwest Indian Ridge, 9-16°E: Cumulates from incremental melt fractions produced at the top of a cold melting regime

Journal of Petrology

Volumn 48, Issue 4, 2007, Pages 647-660

  Dantas, C ^a   Ceuleneer, G ^a   Gregoire, M ^a   Python, M ^a   Freydier, R ^a   Warren, J ^b   Dick, H J B ^b  

^a CNRS   (France)

^b WOODS HOLE OCEANOGRAPHIC INSTITUTION   (United States)

Author keywords

Abyssal pyroxenites; Cumulates; Lithospheric mantle; Melt migration; Southwest Indian Ridge

Indexed keywords

ABYSSAL ZONE; ASTHENOSPHERE; CHEMICAL COMPOSITION; CLINOPYROXENE; IGNEOUS GEOCHEMISTRY; LITHOLOGY; MELT INCLUSION; MID-OCEAN RIDGE; MID-OCEAN RIDGE BASALT; PARTIAL MELTING; PERIDOTITE; PETROGENESIS; PYROXENITE; RARE EARTH ELEMENT;

INDIAN OCEAN; SOUTHWEST INDIAN RIDGE;

EID: 34047168272     PISSN: 00223530     EISSN: 14602415     Source Type: Journal    
DOI: 10.1093/petrology/egl076     Document Type: Article

References (49)

1. Allègre, C. J. & Turcotte, D. L. (1986). Implications of a two-component marble-cake mantle. Nature 23, 123-127.
2. Benoit, M., Polvé, M. & Ceuleneer, G. (1996). Trace element and isotopic characterization of mafic cumulates in a fossil mantle diapir (Oman ophiolite). Chemical Geology 134(1-3): 199-214.
3. Benoit, M., Ceuleneer, G. & Polvé, M. (1999).The remelting of hydro-thermally altered peridotite at mid-ocean ridges by intruding mantle diapirs. Nature 402, 514-518.
4. Bloomer, S. H., Meyer, P. S., Dick, H. J. B., Ozawa, K. & Natland, H. (1991). Textural and mineralogic variations in gabbroic rocks from Hole 735B. In: Von Herzen, R. P., Robinson, P. T., et al. (eds) Proceedings of Ocean Drilling Program, Scientific Results, 118. College Station, TX: Ocean Drilling Program, pp. 21-39.
5. Cannat, M., Rommevaux-Jestin, C., Sauter, D., Deplus, C. & Mendel, V. (1999). Formation of the axial relief at the very slow spreading Southwest Indian Ridge (49°-69°E). Journal of Geophysical Research 104, 22825-22843.
6. Ceuleneer, G. & Cannat, M. (1997). High-temperature ductile deformation of site 920 peridotites. In: Karson, J. A., Cannat, M., Miller, D. J. & Elthon, D. (eds) Proceedings of Ocean Drilling Program, Scientific Results, 153. College Station, TX: Ocean Drilling Program, pp. 23-34.
7. Ceuleneer, G. & Rabinowicz, M. (1992). Mantle flow and melt migration beneath ocean ridges: Models derived from observations in ophiolites. In: Morgan, J. P., Blackman, D. K. & Sinton, J. M. (eds) Mantle Flow and Melt Generation at Mid-Ocean Ridges. Geophysical Monograph, American Geophysical Union 71, 123-154.
8. Ceuleneer, G., Monnereau, M. & Amri, I. (1996). Thermal structure of a fossil mantle diapir inferred from the distribution of mafic cumulates. Nature 379, 149-153.
9. Dick, H. J. B. & Natland, J. H. (1996). Late-stage melt evolution and transport in the shallow mantle beneath the East Pacific Rise. In: Mével, C., Gillis, K. M., Allan, J. F. & Meyer, P. S. (eds) Proceedings of Ocean Drilling Program, Scientific Results, 147. College Station, TX: Ocean Drilling Program, pp. 103-134.
10. Dick, H. J. B. & Sinton, J. (1979). Compositional layering in alpine peridotites: Evidence for pressure solution creep in the mantle. Journal of Geology 87, 403-416.
11. Dick, H. J. B., Fisher, R. L. & Bryan,W.B. (1984). Mineralogic variability of the uppermost mantle along mid-ocean ridges. Earth and Planetary Science Letters 69, 88-106.
12. Dick, H. J. B., Ozawa, K., Meyer, P. S., Niu, Y., Robinson, P. T., Constantin, M., Hebert, R., Maeda, J., Natland, J. H., Hirth, G. & Mackie, S. (2002). Primary silicate mineral chemistry of a 1.5-km section of very slow spreading lower ocean crust: ODP Hole 735B, Southwest Indian Ridge. In: Natland, J. H., Dick, H. J. B., Miller, D. J. & Von Herzen, R. (eds) Proceedings of Ocean Drilling Program, Scientific Results, 000. College Station, TX: Ocean Drilling Program, pp. 1-60.
13. Dick, H. J. B., Lin, J. & Schouten, H. (2003). An ultraslow-spreading class of ocean ridge. Nature 426, 405-411.
14. Francis, D. (1986). The pyroxene paradox in MORB glasses - a signature of picritic parental magmas? Nature 319, 586-588.
15. Fujii, T. (1990). Petrology of peridotites from hole 670A, Leg 109. In: Detrick, R., Honnorez, J., Brian,W. B., Juteau, T., et al. (eds) Proceedings of Ocean Drilling Program, Scientific Results, 106/109. College Station, TX: Ocean Drilling Program, pp. 19-25.
16. 2. Contributions to Mineralogy and Petrology 87, 87-97.
17. 4He ratios in basalt glasses from the western Southwest Indian Ridge (10°-24°E). Earth and Planetary Science Letters 206, 509-528.
18. Grove, T. L., Kinzler, R. J. & Bryan, W. B. (1992). Fractionation of mid-ocean ridge basalt. In: Morgan, J. P., Blackman, D. K. & Sinton, J. M. (eds) Mantle Flow and Melt Generation at Mid-Ocean Ridges. Geophysical Monograph, American Geophysical Union 71, 281-311.
19. Haggerty, S. E., (1981). Opaque mineral oxides in terrestrial igneous rocks. In: Rumble, D., III (ed.) Oxide Minerals. Reviews in Mineralogy, Mineralogical Society of America 3, 101-300.
20. Hart, S. R. & Dunn, T. (1993). Experimental cpx/melt partitioning of 24 trace elements. Contributions to Mineralogy and Petrology 113, 1-8.
21. Hellebrand, E., Snow, J. E., Hoppe, P. & Hofmann, A. W. (2002). Garnet-field melting and late-stage refertilization in 'residual' abyssal peridotites from the Central Indian Ridge. Journal of Petrology 43, 2305-2338.
22. Hirschmann, M. M. & Stolper, E.M. (1996). A possible role for garnet pyroxenite in the origin of the 'garnet signature' in MORB. Contributions to Mineralogy and Petrology 124, 185-208.
23. Jaroslow, G. E., Hirth, G. & Dick, H. J. B. (1996). Abyssal peridotite mylonites: Implications for grain size sensitive flow and strain localization in the oceanic lithosphere.Tectonophysics 256, 17-37.
24. Johnson, K. T. M. & Dick, H. J. B. (1992). Open system melting and temporal and spatial variation of peridotite and basalt at the Atlantis II fracture zone. Journal of Geophysical Research 97, 9219-9241.
25. Johnson, K. T. M., Dick, H. J. B. & Shimizu, N. (1990). Melting in the oceanic upper mantle: An ion microprobe study of diopsides in abyssal peridotites. Journal of Geophysical Research 95, 2661-2678.
26. Juteau, T., Berger, E. & Cannat, M. (1990). Serpentinized, residual mantle peridotites from the M.A.R. Median Valley, ODP hole 670A (21°10′N, 45°02′W, Leg 109): Primary mineralogy and geothermometry. In: Detrick, R., Honnorez, J., Brian, W. B., Juteau, T., et al. (eds) Proceedings of Ocean Drilling Program, Scientific Results, 106/109. College Station, TX: Ocean Drilling Program, pp. 27-45.
27. Kelemen, P. B., Shimizu, N. & Salters, V. J. M. (1995). Extraction of mid-ocean-ridge basalt from the upwelling mantle by focused flow of melt in dunite channels. Nature 375, 747-753.
28. Kempton, P. D. & Stephens, C. J. (1997). Petrology and geochemistry of nodular websterite inclusions in harzburgite, hole 920D. In: Karson, J. A., Cannat, M., Miller, D. J. & Elthon, D. (eds) Proceedings of Ocean Drilling Program, Scientific Results, 153. College Station, TX: Ocean Drilling Program, pp. 321-331.
29. Langmuir, C. H., Klein, E. M. & Plank, T. (1992). Petrological systematics of mid-ocean ridge basalts: Constraints on melt generation beneath ocean ridges. In: Morgan, J. P., Blackman, D. K. & Sinton, J. M. (eds) Mantle Flow and Melt Generation at Mid-Ocean Ridges. Geophysical Monograph, American Geophysical Union 71, 183-280.
30. Le Roex, A. P., Dick, H. J. B. & Watkins, R.T. (1992). Petrogenesis of anomalous K-enriched MORB from the Southwest Indian Ridge: 11°53′E to 14°38′E. Contributions to Mineralogy and Petrology 110, 253-268.
31. McDonough, W. F. & Sun, S.-S. (1995). The composition of the Earth. Chemical Geology 120, 223-253.
32. McKenzie, D. & O'Nions, R. K. (1991). Partial melt distributions from inversion of rare element concentrations. Journal of Petrology 32, 1021-1091.
33. Mercier, J.-C. C. & Nicolas, A. (1975). Textures and fabrics of uppermantle peridotites as illustrated by xenoliths from basalts. Journal of Petrology 16, 454-487.
34. Nonnotte, P., Ceuleneer, G. & Benoit, M. (2005). Genesis of andesitic-boninitic magmas at mid-ocean ridges by melting of hydrated peridotites: Geochemical evidence from DSDP Site 334 gabbronorites. Earth and Planetary Science Letters 236, 632-653.
35. 87Sr: A clue to understand the mantle convection processes? Earth and Planetary Science Letters 51, 71-93.
36. Pouchou, J. L. & Pichoir, F. (1985). 'PAP' Z procedure for improved quantitative micobeam analysis. Micobeam Analysis, 14-106.
37. Prinzhofer, A., Lewin, E. & Allègre, C. J. (1989). Stochastic melting of the marble cake mantle: Evidence from local study of the East Rise at 12°50′N. Earth and Planetary Science Letters 92, 189-206.
38. Python, M. (2001). Participation française aux campagnes KN162 legs 7 et 9 sur la dorsale sud-ouest indienne entre 9°E et 23°E (R/V Knorr, Décembre 2000-Janvier 2001): Influence de la géométrie de la dorsale sur l'accrétion crustale à des vitesses d'expansion ultralente. La Lettre Dorsale 8(1-2): 8-10.
39. Python, M. & Ceuleneer, G. (2003). Nature and distribution of dykes and related melt migration structures in the mantle section of the Oman ophiolite. Geochemistry, Geophysics, Geosystems 4, 8612, doi:10.1029/ 2002GC000354.
40. Rabinowicz, M. & Ceuleneer, G. (2005). The effect of sloped isotherms on melt migration in the shallow mantle: A physical and numerical model based on observations in the Oman ophiolite. Earth and Planetary Science Letters 229, 231-246.
41. Ross, K. & Elthon, D. (1997a). Extreme incompatible trace-element depletion of diopside in residual mantle from south of the Kane Fracture Zone. In: Karson, J. A., Cannat, M., Miller, D. J. & Elthon, D. (eds) Proceedings of Ocean Drilling Program, Scientific Results, 153. College Station, TX: Ocean Drilling Program, pp. 277-284.
42. Ross, K. & Elthon, D. (1997b). Cumulus and postcumulus crystallization in the oceanic crust: Major- and trace-element geochemistry leg 153 gabbroic rocks. In: Karson, J. A., Cannat, M., Miller, D. J. & Elthon, D. (eds) Proceedings of Ocean Drilling Program, Scientific Results, 153. College Station, TX: Ocean Drilling Program, pp. 333-350.
43. Salters, V. J. M. & Dick, H. J. B. (2002). Mineralogy of the mid-oceanridge basalt source from neodynium isotopic composition of abyssal peridotites. Nature 418, 68-72.
44. VI in clinopyroxenes of subcontinental and suboceanic ridge peridotites: A clue to different melting processes in the mantle? Earth and Planetary Science Letters 122, 281-289.
45. Seyler, M., Toplis, M. J., Lorand, J. P., Luguet, A. & Cannat, M. (2001). Clinopyroxene microtextures reveal incompletely extracted melts in abyssal peridotites. Geology 29, 155-158.
46. Standish, J. J., Dick, H. J. B. & Sims, K. W. (2005). Sensitivity of MORB chemistry and emplacement to accretionary tectonics at ultraslow-spreading rates on the Southwest Indian Ridge. EOS Transactions, American Geophysical Union 86(52), Fall Meeting Supplement, Abstract T32A-07.
47. Stephens, C. J. (1997). Heterogeneity of oceanic peridotite from the western canyon wall at MARK: Results from site 920. In: Karson, J. A., Cannat, M., Miller, D. J. & Elthon, D. (eds) Proceedings of Ocean Drilling Program, Scientific Results, 153. College Station,TX: Ocean Drilling Program, pp. 285-303.
48. Suhr, G., Hellebrand, E., Snow, J. E., Seck, H. A. & Hofmann, A. W. (2003). Significance of large, refractory dunite bodies in the upper mantle of the Bay of Islands ophiolite. Geochemistry, Geophysics, Geosystems 4, 8605, doi:10.1029/2001GC000277.
49. Sun, S.-S. & McDonough, W. F. (1989). Chemical and isotopic systematics of oceanic basalts: Implications for mantle composition and processes. In: Saunders, A. D. & Norry, M. J. (eds) Magmatism in the Ocean Basins. Geological Society, London, Special Publications 42, 313-345.