Contributions to Mineralogy and Petrology

, Volume 155, Issue 4, pp 491–509 | Cite as

Petrology and geochemistry of peridotites from IODP Site U1309 at Atlantis Massif, MAR 30°N: micro- and macro-scale melt penetrations into peridotites

  • Akihiro TamuraEmail author
  • Shoji Arai
  • Satoko Ishimaru
  • Eric S. Andal
Original Paper


Peridotite samples recovered from IODP Site U1309 at the Atlantis Massif in the Mid-Atlantic Ridge were examined to understand magmatic processes for the oceanic core complex formation. Original peridotite was fragmented, and the limited short peridotite intervals are now surrounded by a huge gabbro body probably formed by late-stage melt injections. Each peridotite interval has various petrographical and geochemical features. A spinel harzburgite in contact with gabbro shows evidence of limited melt penetrations causing gradual compositional change, in terms of trace-element compositions of pyroxenes, as well as modal change near the boundary. Geochemistry of clinopyroxenes with least melt effects indicates that the harzburgite is originally mantle residue formed by partial melting under polybaric conditions, and that such a depleted peridotite is one of the components of the oceanic core complex. Some of plagioclase-bearing peridotites, on the other hand, have more complicated origin. Although their original features were partly overprinted by the injected melt, the original peridotites, both residual and non-residual materials, were possibly derived from the upper mantle. This suggests that the melt injected around an upper mantle region or into mantle material fragments. The injected melt was possibly generated at the ridge-segment center and, then, moved and evolved toward the segment end beneath the oceanic core complex.


Abyssal peridotite Geochemistry of pyroxenes Melt/peridotite reaction Oceanic core complex 



This research used data and samples provided by IODP. We are grateful to the scientists, technicians, officers, and crews aboard the JOIDES Resolution and in TAMU for their help. This manuscript was greatly improved by comments from two anonymous reviewers. K.T.M. Johnson is thanked for his suggestions. T. Morishita, Y. Ishida and K. Tazaki are thanked for assistance with the electron microprobe and LA-ICP-MS analyses. This work was supported by JAMSTEC, Kanazawa University 21st Century COE program (led by K. Hayakawa), Grants-in Aid for Scientific Research (No. 18740336) from Ministry of Education, Culture, Sports, Science and Technology, Japan.


  1. Arai S (1987) An estimation of the least depleted spinel peridotite on the basis of olivine-spinel mantle array. Neues Jahrbuch für Mineralogie Monatshefte 8:347–354Google Scholar
  2. Arai S (1994) Characterization of spinel peridotites by olivine-spinel compositional relationships: review and interpretation. Chem Geol 113:191–204CrossRefGoogle Scholar
  3. Arai S, Matsukage K (1996) Petrology of the gabbro-troctlite-peridotite complex from Hess Deep, equatorial Pacific: implications for mantle–melt interaction within the oceanic lithosphere. In: Mevel C, Gliss KM, Allan JF, Mayer PS (eds) Proceedings of the Ocean Drilling Program, Scientific Results 147. Ocean Drilling Program, College Station, pp 135–155Google Scholar
  4. Arai S, Matsukage K, Isobe E, Vysotskiy S (1997) Concentration of incompatible elements in oceanic mantle: effect of melt/wall interaction in stagnant or failed melt conduits within peridotite. Geochim Cosmochim Acta 61:671–675CrossRefGoogle Scholar
  5. Arai S, Okamura H, Kadoshima K, Ninomiya C, Suzuki K (2007) Chromian spinel chemistry in ultramafic-mafic plutonic rocks as a discriminato of tectonic settings. Eur J Mineral (submitted)Google Scholar
  6. Barth MG, Manson PRD, Davies GR, Dijkstra A, Drury MR (2003) Geochemistry of the Othris ophiolite, Greece: evidence for refertilization? J Petrol 44:1759–1785CrossRefGoogle Scholar
  7. Batanova VG, Suhr G, Sobolev AV (1998) Origin of geochemical heterogeneity in the mantle peridotite from the Bay of Islands ophiolite, Newfoundland, Canada: Ion probe study of clinopyroxene. Geochim Cosmochim Acta 62:853–866CrossRefGoogle Scholar
  8. Blackman DK, Cann JR, Smith DK (1998) Origin of extensional core complexes: evidence form the MAR at Atlantis Fracture Zone. J Geophys Res 103:21315–21334CrossRefGoogle Scholar
  9. Blackman DK, Karson JA, Kelley DS, Cann JR, Früh-Green GL, Gee JS, Hurst SD, John BE, Morgan J, Nooner SL, Ross DK, Schroeder TJ, Williams EA (2004) Geology of the Atlantis Massif (MAR 30°N): implications for the evolution of an ultramafic oceanic core complex. Mar Geophys Res 23:443–469CrossRefGoogle Scholar
  10. Blackman DK, Ildefonse B, John BE, Ohara Y, Miller DJ, MacLeod CJ, the Expedition 304/305 Scientists (2006) Proceedings of the Integrated Ocean Drilling Program 304/305 Expedition Reports: Oceanic Core Complex Formation, Atlantis Massif. Proceedings of the Integrated Ocean Drilling Program, Integrated Ocean Drilling Program Management International, Inc, College Station doi: 10.2204/iodp.proc.304305.2006
  11. Bodinier JL, Vasseur G, Vernieres J, Dupuy C, Fabries J (1990) Mechanisms of mantle metasomatism: geochemical evidence from the Lherz orogenic peridotite. J Petrol 31:597–628Google Scholar
  12. Bonatti E, Peyve A, Kepezhinskas P, Kurentsova N, Seyler M, Skolotnev S, Udintsev G (1992) Upper mantle heterogeneity below the Mid-Atlantic Ridge, 0°-15°N. J Geophys Res 97:4461–4476CrossRefGoogle Scholar
  13. Bougault H, Dmitriev L, Schilling JG, Sobolev AV, Joron JL, Needham HD (1988) Mantle heterogeneity form trace elements: MAR triple junction near 14°N. Earth Planet Sci Lett 88:27–36CrossRefGoogle Scholar
  14. Brunelli D, Seyler M, Cipriani A, Ottolini L, Bonatti E (2006) Discontinuous melt extraction and weak refertilization of mantle peridotites at the Vema lithospheric section (Mid-Atlantic Ridge). J Petrol 47:745–771CrossRefGoogle Scholar
  15. Cann JR, Blackman DK, Smith DK, Mcallister E, Janssen B, Mello S, Avgerinos E, Pascoe AR, Escartin J (1997) Corrugated slip surfaces formed at ridge-transform intersection on the Mid-Atlantic Ridge. Nature 385:329–332CrossRefGoogle Scholar
  16. Cannat M (1996) How thick is the magmatic crust at slow-spreading oceanic ridges. J Geophys Res 101:2847–2857CrossRefGoogle Scholar
  17. Cannat M, Chatin F, Whitechurch H, Ceuleneer G (1997) Gabbroic rocks trapped in the upper mantle at the Mid-Atlantic Ridge. In: Karson JA, Cannat M, Miller DJ (eds) Proceedings of the Ocean Drilling Program, Scientific Results, 153. Ocean Drilling Program, College Station, pp 277–284Google Scholar
  18. Constantin M (1999) Gabbroic intrusions and magmatic metasomatism in harzburgites from the Garret transform fault: implications for the nature of the mantle-crust transition at fast-spreading ridges. Contrib Mineral Petrol 136:111–130CrossRefGoogle Scholar
  19. Coogan LA, Saunders AD, Kempton PD, Norry MJ (2000) Evidence from oceanic gabbros for porous melt migration within a crystal mush beneath the Mid-Atlantic Ridge. Geochem Geophys Geosyst 1:2000GC000072CrossRefGoogle Scholar
  20. Dick HJB (1989) Abyssal peridotites, very slow spreading ridges and ocean ridge magmatism. In: Saunders AD, Norry MJ (eds) Magmatism in the ocean basins. Geological Society Special Publication 42. Geological Society, London, pp 71–105Google Scholar
  21. Dick HJB, Bullen T (1984) Chromian spinel as a petrogenetic indicator in abyssal and alpine-type peridotites and spatially associated lavas. Contrib Mineral Petrol 86:54–76CrossRefGoogle Scholar
  22. Dick HJB, Natland JH (1996) Late-stage melt evolution and transport in shallow mantle beneath the East Pacific Rise. In: Mével C, Gillis KM, Allan JF (eds) Proceedings of the Ocean Drilling Program, Scientific Results, 147. Ocean Drilling Program, College Station, pp 103–134Google Scholar
  23. Elton D (1992) Chemical trends in abyssal peridotites: refertilization of depleted suboceanic mantle. J Geophys Res 97:9015–9025CrossRefGoogle Scholar
  24. Ghose I, Cannat M, Seyler M (1996) Transform fault effect on mantle melting in the MARK area (Mid-Atlantic Ridge south of Kane transform). Geology 24:1139–1142CrossRefGoogle Scholar
  25. Godard M, Jousselin D, Bodinier J-L (2000) Relationships between geochemistry and structure beneath a palaeo-spreading centre: a study of the mantle section in the Oman ophiolite. Earth Planet Sci Lett 180:133–148CrossRefGoogle Scholar
  26. Hellebrand E, Snow JE, Dick HJB, Hofman AW (2001) Coupled major and trace elements as indicators of the extent of melting in mid-ocean-ridge peridotites. Nature 410:677–681CrossRefGoogle Scholar
  27. Hellebrand E, Snow JE, Hoppe P, Hofmann A (2002) Garnet-field melting and late-stage refertilization in ‘residual’ abyssal peridotites from the Central Indian Ridge. J Petrol 43:2305–2338CrossRefGoogle Scholar
  28. Ildefonse B, Blackman DK, John BE, Ohara Y, Miller DJ, Macleod CJ, IODP expeditions 304/305 Science party (2007) Oceanic core complexes and crustal accretion at slow-spreading ridges. Geology 35:623–626Google Scholar
  29. Ishida Y, Morishita T, Arai S, Shirasaka M (2004) Simultaneous in-situ multi-element analysis of minerals on thin section using LA-ICP-MS. Sci Rep Kanazawa Univ 48:31–42Google Scholar
  30. Johnson KTM, Dick HJB (1992) Open system melting and temporal and spatial variation of peridotite and basalt at the Atlantis II Fracture Zone. J Geophys Res 97:9219–9241CrossRefGoogle Scholar
  31. Johnson KTM, Dick HJB, Shimizu N (1990) Melting in the oceanic upper mantle: an ion microprobe study of diopsides in abyssal peridotites. J Geophys Res 95:2661–2678CrossRefGoogle Scholar
  32. Karson JA, Lawrence RM (1997) Tectonic setting of serpentinite exposures on the western median valley wall of the MARK area in the vicinity of Site 920. In: Karson JA, Cannat M, Miller DJ (eds) Proceedings of the Ocean Drilling Program, Scientific Results, 153. Ocean Drilling Program, College Station, pp 5–21Google Scholar
  33. Kelemen PB (1990) Reaction between ultramafic rock and fractionating basaltic magma I. Phase relations, the origin of calc-alkaline magma series, and the formation of discordant dunite. J Petrol 31:51–98Google Scholar
  34. Kelemen PB, Shimizu N, Salters VJM (1995) Extraction of mid-ocean-ridge basalt from the upwelling mantle by focused flow of melt in dunite channels. Nature 375:747–753CrossRefGoogle Scholar
  35. Longerich HP, Jackson SE, Gunther D (1996) Laser ablation inductively coupled plasma mass spectrometric transient signal data acquisition and analyte concentration calculation. J Anal At Spectrom 11:899–904CrossRefGoogle Scholar
  36. Morishita T, Ishida Y, Arai S (2005a) Simultaneous determination of multiple trace element composisions in thin (<30 μm) layers of BCR-2G by 193 nm ArF excimer laser ablation-ICP-MS: implications for matrix effect and elemental fractionation on quantitative analysis. Geochem J 39:327–340CrossRefGoogle Scholar
  37. Morishita T, Ishida Y, Arai S, Shirasaka M (2005b) Determination of multiple trace element compositions in thin (<30 μm) layers of NIST SRM 614 and 616 using laser ablation-inductively coupled plasma-mass spectrometry. Geostand Geoanal Res 29:107–122CrossRefGoogle Scholar
  38. Navon O, Stolper E (1987) Geochemical consequences of melt percolation: the upper mantle as a chromatographic column. J Geol 95:285–307CrossRefGoogle Scholar
  39. Nicolas A (1989) Structures of ophiolites and dynamics of oceanic crustal analogues. Kluwer, Dordrecht, 367ppGoogle Scholar
  40. Pearce NJG, Perkins WT, Westgate JA, Gorton MP, Jackson SE, Neal CR, Chenery SP (1997) A compilation of new and published major and trace element data for NIST SRM 610 and NIST SRM 612 glass reference materials. Geostand Newslett 21:115–144CrossRefGoogle Scholar
  41. Piccardo GB, Zanetti A, Müntener O (2007) Melt/peridotite interaction in the Southern Lanzo peridotite: field, textural and geochemical evidence. Lithos 94: 181–209CrossRefGoogle Scholar
  42. Rampone E, Piccardo GB, Vannucci R, Bottazzi P (1997) Chemistry and origin of trapped melts in ophiolitic peridotites. Geochim Cosmochim Acta 61(21):4557–4569CrossRefGoogle Scholar
  43. Reynolds JR, Langmuir CH (1997) Petrological systematics of the Mid-Atlantic Ridge south of Kane: implications for ocean crust formation. J geophys Res 102:14915–14946CrossRefGoogle Scholar
  44. Ross K, Elthon D (1997) Extreme incompatible trace-element depletion of diopside in residual mantle from south of the Kane F.Z. In: Karson JA, Cannat M, Miller DJ (eds) Proceedings of the Ocean Drilling Program, Scientific Results, 153. Ocean Drilling Program, College Station, pp 277–284Google Scholar
  45. Seyler M, Bonatti E (1997) Regional-scale melt-rock interactions in lherzolitic mantle in the Romanche Fracture Zone (Atlantic Ocean). Earth Planet Sci Lett 146:273–287CrossRefGoogle Scholar
  46. Seyler M, Lorand JP, Dick HJB, Drouin M (2007) Pervasive melt percolation reactions in ultra-depleted refractory harzburgites at the Mid-Atlantic Ridge, 15°20′N: ODP Hole 1274A. Contrib Mineral Petrol 153:303–319CrossRefGoogle Scholar
  47. Sun SS, McDonough WF (1989) Chemical and isotopic systematics of oceanic basalts: implications for mantle composition and processes. In: Saunders AD, Norry MJ (eds) Magmatism in the ocean basins. Geological Society Special Publication 42. Geological Society, London, pp 313–345Google Scholar
  48. Takazawa E, Frey F, Shimizu N, Obata M, Bodinier J-L (1992) Geochemical evidence for melt migration and reaction in the upper mantle. Nature 359:55–58CrossRefGoogle Scholar
  49. Tartarotti P, Susini S, Nimis P, Ottolini L (2002) Melt migration in the upper mantle along the Romanche Fracture Zone (Equatorial Atlantic). Lithos 63:125–149CrossRefGoogle Scholar
  50. Veniéres J, Godard M, Bodinier J-L (1997) A plate model for the simulation of trace element fractionation during partial melting and magma transport in the Earth’s upper mantle. J Geophys Res 102:24771–24784CrossRefGoogle Scholar

Copyright information

© Springer-Verlag 2007

Authors and Affiliations

  • Akihiro Tamura
    • 1
    Email author
  • Shoji Arai
    • 1
  • Satoko Ishimaru
    • 1
  • Eric S. Andal
    • 1
  1. 1.Department of Earth SciencesKanazawa UniversityKanazawaJapan

Personalised recommendations