E. Aharonov, J. A. Whitehead, P. B. Kelemen, and M. Spiegelman, Channeling instability of upwelling melt in the mantle, J. Geophys. Res, vol.100, issue.20, pp.433-20450, 1995.

P. D. Asimow, M. M. Hirschmann, and E. M. Stolper, Calculation of Peridotite Partial Melting from Thermodynamic Models of Minerals and Melts, IV. Adiabatic Decompression and the Composition and Mean Properties of Mid-ocean Ridge Basalts, Journal of Petrology, vol.42, issue.5, pp.963-998, 2001.
DOI : 10.1093/petrology/42.5.963

B. Edard and J. H. , Disequilibrium mantle melting, Earth and Planetary Science Letters, vol.91, issue.3-4, pp.359-366, 1989.
DOI : 10.1016/0012-821X(89)90009-5

B. Edard and J. H. , Cumulate Recycling and Crustal Evolution in the Bay of Islands Ophiolite, The Journal of Geology, vol.99, issue.2, pp.225-249, 1991.
DOI : 10.1086/629486

B. Edard and J. H. , Oceanic crust as a reactive filter: Synkinematic intrusion, hybridization, and assimilation in an ophiolitic magma chamber, western Newfoundland, Geology, vol.21, issue.1, pp.77-80, 1993.
DOI : 10.1130/0091-7613(1993)021<0077:OCAARF>2.3.CO;2

B. Edard and J. H. , A procedure for calculating the equilibrium distribution of trace elements among the minerals of cumulate rocks, and the concentration of trace elements in the coexisting liquids, Chemical Geology, vol.118, issue.1-4, pp.143-153, 1994.
DOI : 10.1016/0009-2541(94)90173-2

B. Edard and J. H. , Trace element partitioning in plagioclase feldspar, Geochimica et Cosmochimica Acta, vol.70, issue.14, pp.3717-3742, 2006.
DOI : 10.1016/j.gca.2006.05.003

B. Edard and J. H. , Parameterizations of calcic clinopyroxene-Melt trace element partition coefficients, Geochemistry, Geophysics, Geosystems, vol.13, issue.2, pp.303-33610, 2014.
DOI : 10.1007/s004100050330

S. H. Bloomer, P. S. Meyer, H. J. Dick, K. Ozawa, and J. H. Natland, Textural and mineralogic variations in gabbroic rocks from Hole 735B, Proceedings of Ocean Drilling Program, Scientific Results, pp.21-39, 1991.

G. Borghini and E. Rampone, Postcumulus processes in oceanic-type olivine-rich cumulates: the role of trapped melt crystallization versus melt/rock interaction, Contributions to Mineralogy and Petrology, vol.35, issue.2, pp.619-633, 2007.
DOI : 10.1093/petrology/35.2.329

G. Borghini, E. Rampone, L. Crispini, R. D. Ferrari, and M. Godard, Origin and emplacement of ultramafic???mafic intrusions in the Erro-Tobbio mantle peridotite (Ligurian Alps, Italy), Lithos, pp.94-210, 2007.
DOI : 10.1016/j.lithos.2006.06.014
URL : https://hal.archives-ouvertes.fr/hal-00407669

G. Borghini, P. Fumagalli, and E. Rampone, The Stability of Plagioclase in the Upper Mantle: Subsolidus Experiments on Fertile and Depleted Lherzolite, Journal of Petrology, vol.33, issue.1, pp.229-254, 2010.
DOI : 10.1093/petrology/33.1.203

G. Borghini, P. Fumagalli, and E. Rampone, The geobarometric significance of plagioclase in mantle peridotites: A link between nature and experiments, Lithos, vol.126, issue.1-2, pp.42-53, 2011.
DOI : 10.1016/j.lithos.2011.05.012

Y. Bottinga and C. J. Allè-gre, Thermal aspects of sea-floor spreading and the nature of the oceanic crust, Tectonophysics, vol.18, issue.1-2, pp.1-17, 1973.
DOI : 10.1016/0040-1951(73)90075-9

D. Brunelli, E. Paganelli, and M. Seyler, Percolation of enriched melts during incremental open-system melting in the spinel field: A REE approach to abyssal peridotites from the Southwest Indian Ridge, Geochimica et Cosmochimica Acta, vol.127, pp.190-203, 2014.
DOI : 10.1016/j.gca.2013.11.040

D. Brunelli, M. Cannat, M. Paquet, M. Sforna, and M. Seyler, Sodium inverse relationships during melting in ultraslow spreading regions: Insights from SWIR-smoothseafloor peridotites, Abstract V11B-3063 presented at 2015 Fall Meeting, AGU, 2015.

M. Cannat, Emplacement of mantle rocks in the seafloor at mid-ocean ridges, Journal of Geophysical Research: Solid Earth, vol.312, issue.109, pp.98-4163, 1993.
DOI : 10.1038/312146a0

M. Cannat, C. Rommevaux-jestin, and H. Fujimoto, Melt supply variations to a magma-poor ultra-slow spreading ridge (Southwest Indian Ridge 618 to 698E), Geochem. Geophys. Geosys, vol.4, issue.8, pp.10-1029, 2003.

M. Cannat and J. F. Casey, An ultramafic lift at the Mid-Atlantic Ridge: Successive stages of magmatism in serpentinized peridotites from the 15 N region, in Mantle and Lower Crust Exposed in Oceanic Ridges and in Ophiolites, pp.5-34, 1995.

M. Cannat, D. Bideau, and R. H. Ebert, Plastic deformation and magmatic impregnation in serpentinized ultramafic rocks from the Garrett transform fault (East Pacific Rise), Earth and Planetary Science Letters, vol.101, issue.2-4, pp.216-232, 1990.
DOI : 10.1016/0012-821X(90)90155-Q

M. Cannat, Thin crust, ultramafic exposures, and rugged faulting patterns at the Mid-Atlantic Ridge (22?????24??N), Geology, vol.23, issue.1, pp.49-52, 1995.
DOI : 10.1130/0091-7613(1995)023<0049:TCUEAR>2.3.CO;2

M. Cannat, G. Ceuleneer, and J. Fletcher, Localization of ductile strain and the magmatic evolution of gabbroic rocks drilled at the Mid-Atlantic Ridge (23??N), Proc. Ocean Drill. Program Sci. Results, pp.77-98, 1997.
DOI : 10.2973/odp.proc.sr.153.006.1997

M. Cannat, F. Chatin, H. Whitechurch, and G. Ceuleneer, Gabbroic rocks trapped in the upper mantle at the Mid-Atlantic Ridge, Proc. Ocean Drill. Program Sci. Results, pp.243-264, 1997.
DOI : 10.2973/odp.proc.sr.153.013.1997

M. Cannat, C. Rommevaux-jestin, D. Sauter, C. Deplus, and V. Mendel, Formation of the axial relief at the very slow spreading Southwest Indian Ridge (498 to 698E, J. Geophys. Res, vol.104843, issue.22, pp.825-847, 1999.

M. Cannat, D. Sauter, V. Mendel, E. Ruellan, K. Okino et al., Modes of seafloor generation at a melt-poor ultraslow-spreading ridge, Geology, vol.413, issue.7, pp.605-608, 2006.
DOI : 10.1130/G22486.1

M. Cannat, D. Sauter, A. Bezos, C. Meyzen, E. Humler et al., Spreading rate, spreading obliquity, and melt supply at the ultraslow spreading Southwest Indian Ridge, Geochemistry, Geophysics, Geosystems, vol.442, issue.7100, pp.10-1029, 2008.
DOI : 10.1038/nature04978
URL : https://hal.archives-ouvertes.fr/hal-00290733

S. M. Carbotte, D. K. Smith, E. M. Cannat, and . Klein, Tectonic and magmatic segmentation of the Global Ocean Ridge System: a synthesis of observations, Geological Society, London, Special Publications, vol.14, issue.1, pp.420-425, 2015.
DOI : 10.1002/ggge.20264

I. S. Carmichael, F. J. Turner, and J. Verhoogen, Igneous Petrology, 1974.

E. J. Catanzaro, T. J. Murphy, W. R. Shields, and E. L. Garner, Absolute isotopic abundance ratios of common, equal-atom, and radiogenic lead isotopic standards, Journal of Research of the National Bureau of Standards Section A: Physics and Chemistry, vol.72, issue.3, pp.72-261, 1968.
DOI : 10.6028/jres.072A.025

L. V. Danyushevsky, P. Plechov, B. J. , R. A. Sohn, J. P. Canales et al., Petrolog3: Integrated software for modeling crystallization processes, Kinematics and geometry of active detachment faulting beneath the Trans-Atlantic Geotraverse (TAG) hydrothermal field on the Mid-Atlantic Ridge, pp.7021-711, 2007.
DOI : 10.1016/0098-3004(90)90074-4

H. J. Dick, Evidence of partial melting in the Josephine Peridotite, Magma Genesis Oreg. Dep. of Geol. and Miner. Ind, pp.59-62, 1977.

H. J. Dick, Abyssal peridotites, very slow spreading ridges and ocean ridge magmatism, Geological Society, London, Special Publications, vol.42, issue.1, pp.71-105, 1989.
DOI : 10.1144/GSL.SP.1989.042.01.06

H. J. Dick, R. Fisher, and W. Bryan, Mineralogic variability of the uppermost mantle along mid-ocean ridges, Earth and Planetary Science Letters, vol.69, issue.1, pp.88-106, 1984.
DOI : 10.1016/0012-821X(84)90076-1

H. J. Dick, C. J. Lissenberg, and J. M. Warren, Mantle Melting, Melt Transport, and Delivery Beneath a Slow-Spreading Ridge: The Paleo-MAR from 23??15'N to 23??45'N, Journal of Petrology, vol.231, issue.5990, pp.425-467, 2010.
DOI : 10.1038/312146a0

H. J. Dick, M. A. Tivey, and B. E. Tucholke, Plutonic foundation of a slow-spreading ridge segment: Oceanic core complex at Kane Megamullion, Geochem. Geophys. Geosyst, pp.10-1029, 2008.

H. J. Dick, Primary silicate mineral chemistry of a 1.5-km section of very slow spreading lower ocean crust: ODP Hole 735B, Southwest Indian Ridge, Proc. ODP, Sci. Results, pp.1-61, 2002.
DOI : 10.2973/odp.proc.sr.176.001.2002

M. Drouin, M. Godard, B. Ildefonse, O. Bruguier, and C. J. Garrido, Geochemical and petrographic evidence for magmatic impregnation in the oceanic lithosphere at Atlantis Massif, Mid-Atlantic Ridge (IODP Hole U1309D, 30??N), Chemical Geology, vol.264, issue.1-4, pp.71-88, 2009.
DOI : 10.1016/j.chemgeo.2009.02.013
URL : https://hal.archives-ouvertes.fr/hal-00420916

J. Escartin, D. K. Smith, H. Cann, C. H. Schouten, S. Langmuir et al., Central role of detachment faults in accretion of slowspreading oceanic lithosphere, Nature, issue.7214, pp.455-790, 2008.

Y. A. Fialko and A. M. Rubin, Thermodynamics of lateral dike propagation: Implications for crustal accretion at slow spreading mid-ocean ridges, Journal of Geophysical Research: Solid Earth, vol.312, issue.B2, pp.2501-2514, 1998.
DOI : 10.1038/312146a0

A. Gale, M. Laubier, S. Escrig, and C. H. Langmuir, Constraints on melting processes and plume-ridge interaction from comprehensive study of the FAMOUS and North Famous segments, Mid-Atlantic Ridge, Earth and Planetary Science Letters, vol.365, pp.209-220, 2013.
DOI : 10.1016/j.epsl.2013.01.022
URL : https://hal.archives-ouvertes.fr/hal-01903800

A. Gale, C. H. Langmuir, and C. A. Dalton, The Global Systematics of Ocean Ridge Basalts and their Origin, Journal of Petrology, vol.494, issue.7436, pp.1051-1082, 2014.
DOI : 10.1038/nature11842

I. Ghose, M. Cannat, and M. Seyler, Transform fault effect on mantle melting in the MARK area (Mid-Atlantic Ridge south of the Kane transform), Geology, vol.24, issue.12, pp.24-1139, 1996.
DOI : 10.1130/0091-7613(1996)024<1139:TFEOMM>2.3.CO;2

M. Godard, Geochemistry of a long in-situ section of intrusive slow-spread oceanic lithosphere: Results from IODP Site U1309 (Atlantis Massif, 30??N Mid-Atlantic-Ridge), Earth and Planetary Science Letters, vol.279, issue.1-2, pp.110-122, 2009.
DOI : 10.1016/j.epsl.2008.12.034
URL : https://hal.archives-ouvertes.fr/hal-00413562

T. L. Grove, R. J. Kinzler, and W. B. Bryan, Fractionation of mid-ocean ridge basalt (MORB), in Mantle Flow and Melt Generation at Mid-Ocean Ridges, Geophys. Monogr. Ser, vol.71, pp.281-310, 1992.

O. Gudmundsson, B. Brandsdottir, W. Menke, and G. E. Sigvaldason, The crustal magma chamber of the Katla volcano in south Iceland revealed by 2-D seismic undershooting, Geophysical Journal International, vol.78, issue.1, pp.277-296, 1994.
DOI : 10.1146/annurev.ea.15.050187.000555

D. G?-unther and C. A. Heinrich, Enhanced sensitivity in laser ablation-ICP mass spectrometry using helium-argon mixtures as aerosol carrier, J. Anal. At. Spectrom., vol.53, issue.9, pp.1363-1368, 1999.
DOI : 10.1016/0016-7037(89)90269-X

C. Hamelin, A. Bezos, L. Dosso, J. Escartin, M. Cannat et al., Atypically depleted upper mantle component revealed by Hf isotopes at Lucky Strike segment, Chemical Geology, vol.341, pp.128-139, 2013.
DOI : 10.1016/j.chemgeo.2013.01.013
URL : https://hal.archives-ouvertes.fr/insu-00834364

C. Herzberg, Partial Crystallization of Mid-Ocean Ridge Basalts in the Crust and Mantle, Journal of Petrology, vol.45, issue.12, pp.2389-2405, 2004.
DOI : 10.1093/petrology/egh040

M. M. Hirschmann and E. M. Stolper, A possible role for garnet pyroxenite in the origin of the "garnet signature" in MORB, MORB, pp.185-208, 1996.
DOI : 10.1007/s004100050184

M. M. Hirschmann, M. S. Ghiorso, L. E. Wasylenki, P. D. Asimow, and E. M. Stolper, Calculation of Peridotite Partial Melting from Thermodynamic Models of Minerals and Melts. I. Review of Methods and Comparison with Experiments, Journal of Petrology, vol.80, issue.1-2, pp.1091-1115, 1998.
DOI : 10.2138/am-1995-1-202

A. W. Hofmann and W. M. White, Mantle plumes from ancient oceanic crust, Earth and Planetary Science Letters, vol.57, issue.2, pp.421-436, 1982.
DOI : 10.1016/0012-821X(82)90161-3

C. A. Hopson, R. G. Coleman, R. T. Gregory, J. S. Pallister, and E. H. Bailey, Geologic section through the Samail Ophiolite and associated rocks along a Muscat-Ibra Transect, southeastern Oman Mountains, Journal of Geophysical Research: Solid Earth, vol.5, issue.B4, pp.86-2527, 1981.
DOI : 10.1130/0091-7613(1977)5<373:OOSOMR>2.0.CO;2

A. L. Jaques and D. H. Green, Anhydrous melting of peridotite at 0?15 Kb pressure and the genesis of tholeiitic basalts, Contributions to Mineralogy and Petrology, vol.66, issue.3, pp.287-310, 1980.
DOI : 10.1029/SP015p0319

K. Johnson, H. J. Dick, and N. Shimizu, Melting in the oceanic upper mantle: An ion microprobe study of diopsides in abyssal peridotites, Journal of Geophysical Research, vol.84, issue.B3, pp.95-2661, 1990.
DOI : 10.1029/JB084iB11p06109

P. B. Kelemen, Reaction Between Ultramafic Rock and Fractionating Basaltic Magma I. Phase Relations, the Origin of Calc-alkaline Magma Series, and the Formation of Discordant Dunite, Journal of Petrology, vol.31, issue.1, pp.51-98, 1990.
DOI : 10.1093/petrology/31.1.51

P. B. Kelemen, D. B. Joyce, J. D. Webster, and J. R. Holloway, Reaction Between Ultramafic Rock and Fractionating Basaltic Magma II. Experimental Investigation of Reaction Between Olivine Tholeiite and Harzburgite at 1150-1050??C and 5 kb, Journal of Petrology, vol.31, issue.1, pp.31-99, 1990.
DOI : 10.1093/petrology/31.1.99

P. B. Kelemen, N. Shimizu, and V. J. Salters, Extraction of mid-ocean-ridge basalt from the upwelling mantle by focused flow of melt in dunite channels, Nature, vol.375, issue.6534, pp.375-747, 1995.
DOI : 10.1038/375747a0

P. B. Kelemen, G. Hirth, N. Shimizu, M. Spiegelman, and H. J. Dick, A review of melt migration processes in the adiabatically upwelling mantle beneath oceanic spreading ridges, Philos. Trans. R. Soc. London A, issue.1723, pp.355-283, 1997.

R. Kinzler and T. Grove, Primary magmas of mid-ocean ridge basalts 2. Applications, Journal of Geophysical Research, vol.96, issue.B5, pp.6907-6926, 1992.
DOI : 10.1007/BF00375227

R. J. Kinzler and T. L. Grove, Primary magmas of mid-ocean ridge basalts 1. Experiments and methods, Journal of Geophysical Research, vol.96, issue.B5, pp.6885-6906, 1992.
DOI : 10.1007/BF00375227

R. J. Kinzler and T. L. Grove, Corrections and further discussion of the primary magmas of mid-ocean ridge basalts, 1 and 2, Journal of Geophysical Research: Solid Earth, vol.88, issue.43, pp.98339-22347, 1993.
DOI : 10.1086/628472

E. M. Klein and C. H. Langmuir, Global correlations of ocean ridge basalt chemistry with axial depth and crustal thickness, Journal of Geophysical Research, vol.14, issue.53, pp.8089-8115, 1987.
DOI : 10.1146/annurev.ea.14.050186.002425

C. H. Langmuir, E. M. Klein, and T. Plank, Petrological systematics of mid-ocean ridge basalts: Constraints on melt generation beneath ocean ridges, in Mantle Flow and Melt Generation at Mid-ocean Ridges, Geophys. Monogr. Ser, vol.71, pp.180-280, 1992.

C. T. Lee, A. Harbert, and W. P. Leeman, Extension of lattice strain theory to mineral/mineral rare-earth element partitioning: An approach for assessing disequilibrium and developing internally consistent partition coefficients between olivine, orthopyroxene, clinopyroxene and basaltic melt, Geochimica et Cosmochimica Acta, vol.71, issue.2, pp.71-481, 2007.
DOI : 10.1016/j.gca.2006.09.014

K. Lehnert, Y. Su, C. H. Langmuir, B. Sarbas, and U. Nohl, A global geochemical database structure for rocks, Geochemistry, Geophysics, Geosystems, vol.80, issue.46, pp.101210-1029, 2000.
DOI : 10.1029/1999GC000026

Y. Liang and E. M. Parmentier, A Two-Porosity Double Lithology Model for Partial Melting, Melt Transport and Melt-rock Reaction in the Mantle: Mass Conservation Equations and Trace Element Transport, Journal of Petrology, vol.46, issue.3, pp.125-152, 2010.
DOI : 10.1093/petrology/egh091

C. J. Lissenberg and H. J. Dick, Melt???rock reaction in the lower oceanic crust and its implications for the genesis of mid-ocean ridge basalt, Earth and Planetary Science Letters, vol.271, issue.1-4, pp.311-325, 2008.
DOI : 10.1016/j.epsl.2008.04.023

C. C. Lundstrom, J. Gill, Q. Williams, and M. R. Perfit, Mantle Melting and Basalt Extraction by Equilibrium Porous Flow, Science, vol.270, issue.5244, p.270, 1958.
DOI : 10.1126/science.270.5244.1958

G. Manhes, J. F. Minster, and C. J. Allegre, Comparative uranium-thorium-lead and rubidium-strontium study of the Saint S??verin amphoterite: consequences for early solar system chronology, Earth and Planetary Science Letters, vol.39, issue.1, pp.14-24, 1978.
DOI : 10.1016/0012-821X(78)90137-1

W. F. Mcdonough and S. S. Sun, The composition of the Earth, Chemical Geology, vol.120, issue.3-4, pp.223-253, 1995.
DOI : 10.1016/0009-2541(94)00140-4

M. Evel and C. , Sampling the Southwest Indian Ridge: First results of the EDUL cruise, Inter- Ridge News, pp.25-26, 1997.

G. Geochemistry and G. , , 1002.

P. Et, A. Effect, . Melt, . Mantle, . On et al., , p.4638

C. M. Meyzen, M. J. Toplis, E. Humler, J. N. Ludden, and C. , A discontinuity in mantle composition beneath the southwest Indian ridge, Nature, vol.97, issue.6924, pp.421-731, 2003.
DOI : 10.1029/92JB01769

C. M. Meyzen, J. N. Ludden, E. Humler, B. Luais, M. J. Toplis et al., New insights into the origin and distribution of the DUPAL isotope anomaly in the Indian Ocean mantle from MORB of the Southwest Indian Ridge, Geochemistry, Geophysics, Geosystems, vol.46, issue.3, pp.11-1110, 1029.
DOI : 10.1093/petrology/egi002

P. J. Michael and W. C. Cornell, Influence of spreading rate and magma supply on crystallization and assimilation beneath midocean ridges: Evidence from chlorine and major element chemistry of mid-ocean ridge basalts, J. Geophys. Res, vol.103, issue.18, pp.325-18356, 1998.

D. J. Miller, Data report: microprobe analyses of primary mineral phases from Site U1309, Atlantis Massif, IODP Expedition 304/305, and the Expedition 304/305 Scientists, Proc. IODP, 2009.
DOI : 10.2204/iodp.proc.304305.202.2009

T. Morishita, Y. Ishida, S. Arai, and M. Shirasaka, Determination of Multiple Trace Element Compositions in Thin (> 30 ?m) Layers of NIST SRM 614 and 616 Using Laser Ablation-Inductively Coupled Plasma-Mass Spectrometry (LA-ICP-MS), Geostandards and Geoanalytical Research, vol.33, issue.1, pp.107-122, 2005.
DOI : 10.1111/j.1751-908X.1997.tb00672.x

M. R. Muller, T. A. Minshull, and R. S. White, Segmentation and melt supply at the Southwest Indian Ridge, pp.27-867, 1999.

P. G. Okubo, H. M. Benz, and B. A. Chouet, Imaging the crustal magma sources beneath Mauna Loa and Kilauea volcanoes, pp.25-867, 1997.

K. Ozawa and N. Shimizu, Open-system melting in the upper mantle: Constraints from the Hayachine-Miyamori ophiolite, northeastern Japan, Journal of Geophysical Research: Solid Earth, vol.85, issue.44, pp.315-22335, 1995.
DOI : 10.1029/JB091iB06p05927

K. Ozawa, P. S. Meyer, and S. H. Bloomer, Mineralogy and Textures of Iron-Titanium Oxide Gabbros and Associated Olivine Gabbros from Hole 735B, Proceedings of Ocean Drilling Program, Scientific Results, pp.41-73, 1991.
DOI : 10.2973/odp.proc.sr.118.125.1991

M. Paquet, M. Cannat, C. Hamelin, and D. Brunelli, The easternmost Southwest Indian Ridge: A laboratory to study MORB and oceanic gabbro petrogenesis in a very low melt supply context, Abstract V31B-4754 presented at 2010 Fall Meeting, AGU, 2014.

P. Patriat and J. Segoufin, Reconstruction of the Central Indian Ocean, Reconstruction of the central Indian Ocean, pp.211-234, 1988.
DOI : 10.1016/0040-1951(88)90267-3

N. J. Pearce, W. T. Perkins, J. A. Westgate, M. P. Gorton, S. E. Jackson et al., A Compilation of New and Published Major and Trace Element Data for NIST SRM 610 and NIST SRM 612 Glass Reference Materials, Geostandards and Geoanalytical Research, vol.48, issue.36, pp.115-144, 1997.
DOI : 10.1016/0168-583X(93)95713-F

M. Pertermann and M. M. Hirschmann, Partial melting experiments on a MORB-like pyroxenite between 2 and 3 GPa: Constraints on the presence of pyroxenite in basalt source regions from solidus location and melting rate, Journal of Geophysical Research: Solid Earth, vol.70, issue.2, pp.2125-2135, 2003.
DOI : 10.1016/0012-821X(84)90004-9

M. Pertermann and M. M. Hirschmann, Anhydrous Partial Melting Experiments on MORB-like Eclogite: Phase Relations, Phase Compositions and Mineral-Melt Partitioning of Major Elements at 2-3 GPa, Journal of Petrology, vol.44, issue.12, pp.44-2173, 2003.
DOI : 10.1093/petrology/egg074

J. E. Quick, The origin and significance of large, tabular dunite bodies in the Trinity peridotite, northern California, Contributions to Mineralogy and Petrology, vol.83, issue.4, pp.413-422, 1982.
DOI : 10.1093/petrology/16.3.549

E. Rampone, P. Bottazzi, and L. Ottolini, Complementary Ti and Zr anomalies in orthopyroxene and clinopyroxene from mantle peridotites, Nature, vol.354, issue.6354, pp.518-52010354518, 1038.
DOI : 10.1038/354518a0

M. R. Renna and R. Tribuzio, Olivine-rich Troctolites from Ligurian Ophiolites (Italy): Evidence for Impregnation of Replacive Mantle Conduits by MORB-type Melts, Journal of Petrology, vol.29, issue.1, pp.1763-1790, 2011.
DOI : 10.1007/BF03326400

K. Ross and D. Elthon, Cumulus and postcumulus crystallization in the oceanic crust: major- and trace-element geochemistry of Leg 153 gabbroic rocks, Proceedings of Ocean Drilling Program, Scientific Results Ocean Drill. Program, Natl. Sci. Found., College Station, pp.333-350, 1997.
DOI : 10.2973/odp.proc.sr.153.023.1997

K. H. Rubin and J. M. Sinton, Inferences on mid-ocean ridge thermal and magmatic structure from MORB compositions, Earth and Planetary Science Letters, vol.260, issue.1-2, pp.257-276, 2007.
DOI : 10.1016/j.epsl.2007.05.035

V. J. Salters and H. J. Dick, Mineralogy of the mid-ocean-ridge basalt source from neodymium isotopic composition of abyssal peridotites, Nature, vol.30, issue.6893, pp.418-68, 2002.
DOI : 10.1093/petrology/30.4.947

V. J. Salters and A. Stracke, Composition of the depleted mantle, Geochemistry, Geophysics, Geosystems, vol.70, issue.B8, pp.10-1029, 2004.
DOI : 10.1016/0012-821X(84)90004-9

A. Sanfilippo, R. Tribuzio, and R. , Origin of olivine-rich troctolites from the oceanic lithosphere: A comparison between the alpine Jurassic ophiolites and modern slow spreading ridges, pp.38-89, 2013.

A. Sanfilippo, H. J. Dick, and Y. Ohara, Melt-Rock Reaction in the Mantle: Mantle Troctolites from the Parece Vela Ancient Back-Arc Spreading Center, Journal of Petrology, vol.212, issue.3-4, pp.861-885, 2013.
DOI : 10.1016/S0012-821X(03)00264-4

A. Sanfilippo, R. Tribuzio, and M. Tiepolo, Mantle???crust interactions in the oceanic lithosphere: Constraints from minor and trace elements in olivine, Geochimica et Cosmochimica Acta, vol.141, pp.423-439, 2014.
DOI : 10.1016/j.gca.2014.06.012

L. Saper and Y. Liang, Formation of plagioclase-bearing peridotite and plagioclase-bearing wehrlite and gabbro suite through reactive crystallization: an experimental study, Contributions to Mineralogy and Petrology, vol.161, issue.3, pp.1-16, 2014.
DOI : 10.1007/s00410-010-0572-5

D. Sauter, Continuous exhumation of mantle-derived rocks at the Southwest Indian Ridge for 11 million years, Nature Geoscience, vol.36, issue.4, pp.314-320, 2013.
DOI : 10.1130/G24639A.1
URL : https://hal.archives-ouvertes.fr/hal-00809312

V. Schlindwein and F. Schmid, Mid-ocean-ridge seismicity reveals extreme types of ocean lithosphere, Nature, vol.34, issue.348, pp.276-279, 2016.
DOI : 10.1029/2007GL031067

M. Seyler, M. Cannat, and C. Mevel, Evidence for major-element heterogeneity in the mantle source of abyssal peridotites from the Southwest Indian Ridge (528 to 688E), Geochem, Geophys. Geosyst, vol.4, issue.2, pp.910110-1029, 2003.

M. Seyler, J. P. Lorand, H. J. Dick, and M. Drouin, Pervasive melt percolation reactions in ultra-depleted refractory harzburgites at the Mid-Atlantic Ridge, 15?? 20???N: ODP Hole 1274A, Contributions to Mineralogy and Petrology, vol.122, issue.3, pp.303-319, 2007.
DOI : 10.1093/petrology/27.4.999
URL : https://hal.archives-ouvertes.fr/hal-00404655

M. Seyler, D. Brunelli, M. J. Toplis, and C. , Multiscale chemical heterogeneities beneath the eastern Southwest Indian Ridge (528E?688E): Trace element compositions of along-axis dredged peridotites, Geochem. Geophys. Geosyst, vol.12, pp.0-1510, 2011.

D. M. Shaw, CONTINUOUS (DYNAMIC) MELTING THEORY REVISITED, The Canadian Mineralogist, vol.38, issue.5, pp.1041-1063, 2000.
DOI : 10.2113/gscanmin.38.5.1041
URL : http://rruff.info/doclib/cm/vol38/CM38_1041.pdf

D. K. Smith and J. R. Cann, Constructing the upper crust of the Mid-Atlantic Ridge: A reinterpretation based on the Puna Ridge, Kilauea Volcano, Journal of Geophysical Research: Solid Earth, vol.159, issue.46, pp.379-25399, 1999.
DOI : 10.1016/0040-1951(89)90167-4

A. V. Sobolev, The Amount of Recycled Crust in Sources of Mantle-Derived Melts, Science, vol.316, issue.5823, pp.316-412, 2007.
DOI : 10.1126/science. 1138113
URL : https://hal.archives-ouvertes.fr/insu-00351049

M. Spiegelman and P. B. Kelemen, Extreme chemical variability as a consequence of channelized melt transport, Geochemistry, Geophysics, Geosystems, vol.53, issue.15A, pp.105510-1029, 2003.
DOI : 10.1016/0016-7037(89)90242-1

G. Geochemistry and G. , , 1002.

P. Et, A. Effect, . Melt, . Mantle, . On et al., ): Major element chemistry and the importance of process versus source, MORB generation beneath the ultraslow spreading Southwest Indian Ridge, p.500410, 1029.

G. Suhr, Melt Migration under Oceanic Ridges: Inferences from Reactive Transport Modelling of Upper Mantle Hosted Dunites, Journal of Petrology, vol.122, issue.4, pp.575-599, 1999.
DOI : 10.1007/s004100050135

G. Suhr, E. Hellebrand, K. Johnson, and D. Brunelli, Stacked gabbro units and intervening mantle: A detailed look at a section of IODP Leg 305, Hole U1309D, Geochemistry, Geophysics, Geosystems, vol.48, issue.52, pp.10-1029, 2008.
DOI : 10.1093/petrology/egl058

P. Tartarotti, S. Susini, P. Nimis, and L. Ottolini, Melt migration in the upper mantle along the Romanche Fracture Zone (Equatorial Atlantic), pp.63-125, 2002.

D. R. Toomey, S. C. Solomon, and G. Purdy, Microearthquakes beneath Median Valley of Mid-Atlantic Ridge near 238N: Tomography and Tectonics, J. Geophys. Res, issue.B8, pp.93-9093, 1988.

D. R. Tormey, T. L. Grove, and W. B. Bryan, Experimental petrology of normal MORB near the Kane Fracture Zone: 22????25??? N, mid-Atlantic ridge, Contributions to Mineralogy and Petrology, vol.70, issue.2, pp.121-139, 1987.
DOI : 10.1093/petrology/20.1.3

E. Tursack and Y. Liang, A comparative study of melt-rock reactions in the mantle: laboratory dissolution experiments and geological field observations, Contributions to Mineralogy and Petrology, vol.46, issue.5, pp.861-876, 2012.
DOI : 10.1093/petrology/egh091

E. Van-achterberg, C. G. Ryan, S. E. Jackson, and W. Griffin, Data reduction software for LA-ICP-MS, in Laser Ablation ICP-MS in the, Assoc. of Can, pp.239-243, 2001.

J. M. Warren and N. Shimizu, Cryptic Variations in Abyssal Peridotite Compositions: Evidence for Shallow-level Melt Infiltration in the Oceanic Lithosphere, Journal of Petrology, vol.231, issue.1-2, pp.395-423, 2010.
DOI : 10.1016/j.epsl.2004.12.005

C. J. Wolfe, G. M. Purdy, D. R. Toomey, and S. C. Solomon, Microearthquake characteristics and crustal velocity structure at 298 N on the Mid-Atlantic Ridge: The architecture of a slow spreading segment, J. Geophys. Res, vol.100, issue.24, pp.449-24472, 1995.

R. K. Workman and S. R. Hart, Major and trace element composition of the depleted MORB mantle (DMM), Earth and Planetary Science Letters, vol.231, issue.1-2, pp.53-72, 2005.
DOI : 10.1016/j.epsl.2004.12.005

G. Geochemistry and G. , , 1002.

P. Et, A. Effect, . Melt, . Mantle, . On et al., , p.4640