B. B. Hanan, J. Blichert-toft, D. G. Pyle, and D. M. Christie, Contrasting origins of the 615 upper mantle revealed by hafnium and lead isotopes from the Southeast Indian Ridge, Nature, vol.616, pp.91-94, 2004.

B. B. Hanan and D. W. Graham, Lead and Helium isotope evidence from oceanic basalts for 618 a common deep source of mantle plumes, Science, vol.272, pp.991-995, 1996.

B. B. Hanan, R. H. Kingsley, and J. Schilling, Pb isotope evidence in the South Atlantic for 620 migrating ridge-hotspot interactions, Nature, vol.322, pp.137-144, 1986.

S. Hart, E. H. Hauri, L. A. Oschmann, and J. A. Whitehead, Mantle plumes and 622 entrainment: isotopic evidence, Science, vol.256, pp.517-520, 1992.

J. Harvey, Ancient melt extraction from the oceanic upper mantle revealed by Re-624, 2006.

, Os isotopes in abyssal peridotites from the Mid-Atlantic ridge. Earth and Planetary 625 Science Letters, vol.244, pp.606-621

A. W. Hofmann, D. H. Heinrich, and K. T. Karl, Sampling Mantle Heterogeneity through 627, 2003.

, Oceanic Basalts: Isotopes and Trace Elements, Treatise on Geochemistry, p.628

. Oxford, , pp.1-44

E. Ito, W. M. White, and C. Göpel, The O, Sr, Nd and Pb isotope geochemistry of MORB, Chemical Geology, vol.630, pp.157-176, 1987.

P. E. Janney, A. P. Le-roex, and R. W. Carlson, Hafnium Isotope and Trace Element 632 Constraints on the Nature of Mantle Heterogeneity beneath the Central Southwest 633 Indian Ridge (13°E to 47°E), Journal of Petrology, vol.46, issue.12, pp.2427-2464, 2005.

C. Langmuir, Hydrothermal vents near a mantle hot spot: The Lucky Strike vent 635 field at 37 degrees N on the Mid-Atlantic Ridge, Earth and Planetary Science Letters, pp.69-91, 1997.

C. Liu, Ancient, highly heterogeneous mantle beneath Gakkel ridge, Arctic 638 Ocean, Nature, vol.452, pp.311-316, 2008.

N. Machado, J. N. Ludden, C. Brooks, and G. Thompson, Fine scale isotopic heterogeneity 640 in the sub-Atlantic mantle, Nature, vol.295, pp.226-228, 1982.

P. Madureira, J. O. Mata, N. Mattielli, G. Queiroz, and P. Silva, Mantle source 642 heterogeneity, magma generation and magmatic evolution at Terceira Island (Azores 643 archipelago): Constraints from elemental and isotopic (Sr, Nd, Hf, and Pb) data, Lithos, vol.644, pp.402-418, 2011.

G. Manhes, J. F. Minster, and C. J. Allègre, Comparative uranium-thorium-lead and 646 rubidium-strontium study of the Saint Sèverin amphoterite: consequences for early 647 solar system chronology, Earth and Planetary Science Letters, vol.39, issue.1, pp.14-24, 1978.

C. M. Meyzen, Isotopic portrayal of the Earth/'s upper mantle flow field, Nature, vol.649, issue.7148, pp.1069-1074, 2007.
URL : https://hal.archives-ouvertes.fr/hal-02110654

J. M. Miranda, J. F. Luis, N. Lourenço, and F. M. Santos, Identification of the magnetization 651 low of the Lucky Strike hydrothermal vent using surface magnetic data, J. Geophys. 652 Res, vol.110, issue.B4, p.4103, 2005.

M. Moreira, R. G. Doucelance, M. D. Kurz, B. Duprã©, and C. J. Allã¨gre, Helium and lead 654 isotope geochemistry of the Azores Archipelago, Earth and Planetary Science Letters, vol.655, pp.189-205, 1999.

M. Moreira, Rare gas systematics on Lucky Strike basalts (37°N, North Atlantic): 657 Evidence for efficient homogenization in a long-lived magma chamber system?, 2011.

, Res. Lett, vol.38, issue.8, p.8304

J. P. Morgan and W. J. Morgan, Two-stage melting and the geochemical evolution of the 660 mantle: a recipe for mantle plum-pudding, Earth Planet Sci Lett, vol.170, issue.3, pp.215-239, 1999.

G. M. Nowell, High precision Hf isotope measurements of MORB and OIB by 662 thermal ionisation mass spectrometry: insights into the depleted mantle, Chemical, vol.663, issue.3-4, pp.211-233, 1998.

P. J. Patchett and M. Tatsumoto, Hafnium isotope variations in oceanic basalts, Geophysical 665 Research Letters, vol.7, pp.1077-1080, 1980.

H. Paulick, C. Münker, and S. Schuth, The influence of small-scale mantle heterogeneities 667 on Mid-Ocean Ridge volcanism: Evidence from the southern Mid-Atlantic Ridge (7°30'S 668 to 11°30'S) and Ascension Island, Earth and Planetary Science Letters, vol.296, issue.3-4, p.310, 2010.

V. J. Salters, The generation of mid-ocean ridge basalts from the Hf and Nd isotope 671 perspective, Earth and Planetary Science Letters, vol.141, issue.1-4, pp.109-123, 1996.

V. J. Salters and H. J. Dick, Mineralogy of the mid-ocean-ridge basalt source from 673 neodymium isotopic composition of abyssal peridotites, nature, vol.418, issue.6893, pp.68-72, 2002.

V. J. Salters and S. R. Hart, The hafnium paradox and the role of garnet in the source of 675 mid-ocean ridge basalts, Nature, vol.342, pp.420-422, 1989.

V. J. Salters, S. Mallick, S. R. Hart, C. E. Langmuir, and A. Stracke, Domains of depleted 677 mantle: New evidence from hafnium and neodymium isotopes, Geochem. Geophys. 678 Geosyst, vol.12, issue.8, p.8001, 2011.

V. J. Salters and A. Stracke, Composition of the depleted mantle, Geochem. Geophys. 680 Geosyst, vol.5, issue.5, pp.5-07, 2004.

V. J. Salters and W. M. White, Hf isotope constraints on mantle evolution, Chemical, vol.682, pp.447-460, 1998.

V. J. Salters and A. Zindler, Extreme Hf-176/Hf-177 in the sub-oceanic mantle. Earth and 684 Planetary Science Letters, vol.129, pp.13-30, 1995.

P. Schiano, J. L. Birck, and C. J. Allegre, Osmium-strontium-neodymium-lead isotopic 686 covariations in mid-ocean ridge basalt glasses and the heterogeneity of the upper 687 mantle, Earth and Planetary Science Letters, vol.150, issue.3-4, pp.363-379, 1997.

J. G. Schilling, Azores mantle blob: rare earth evidence. Earth and Planetary Science 689 Letters, vol.25, pp.103-115, 1975.

J. G. Schilling, B. B. Hanan, B. Mccully, R. H. Kingsley, and D. Fontignie, , p.691, 1994.

, Sierra Leone mantle plume on the equatorial Mid-Atlantic Ridge: A Nd-Sr-Pb isotopic 692 study, J. Geophys. Res, vol.99, issue.B6, pp.12005-12028

M. Seyler, M. Cannat, and C. Mével, Evidence for major-element heterogeneity in the 694 mantle source of abyssal peridotites from the Southwest Indian Ridge (52° to 68°E), 2003.

, Geochem. Geophys. Geosyst, vol.4, issue.2, p.9101

S. B. Shirey, J. F. Bender, and C. H. Langmuir, Three-component isotopic heterogeneity near 697 the Oceanographer transform Mid-Atlantic Ridge, Nature, vol.325, pp.217-223, 1987.

N. S. Simon, R. W. Carlson, D. G. Pearson, and G. R. Davies, The Origin and Evolution of 699 the Kaapvaal Cratonic Lithospheric Mantle, Journal of Petrology, vol.48, issue.3, pp.589-625, 2007.

S. C. Singh, Discovery of a magma chamber and faults beneath a Mid-Atlantic 701 Ridge hydrothermal field, nature, vol.442, issue.7106, pp.1029-1032, 2006.

A. Stracke, M. Bizimis, and V. J. Salters, Recycling oceanic crust: Quantitative 703 constraints, G cubed, vol.4, issue.3, pp.1-33, 2005.

A. Stracke, Abyssal peridotite Hf isotopes identify extreme mantle depletion, Earth 705 and Planetary Science Letters, vol.308, issue.3-4, pp.359-368, 2011.

J. Van-orman, T. Grove, N. Shimizu, and G. Layne, Rare earth element diffusion in a 707 natural pyrope single crystal at 2.8 GPa, Contributions to Mineralogy and Petrology, vol.708, issue.4, pp.416-424, 2002.

I. Vlastelic, Large-scale chemical and thermal division of the Pacific mantle, Nature, vol.710, pp.345-350, 1999.

E. Widom, R. W. Carlson, J. B. Gill, and H. U. Schmincke, Thâ?"Srâ?"Ndâ?"Pb isotope and 712 trace element evidence for the origin of the São Miguel, Azores, enriched mantle 713 source, Chemical Geology, issue.1â?, pp.49-68, 1997.

D. Yu, D. Fontignie, and J. Schilling, Mantle plume-ridge interactions in the Central 715 North Atlantic: a Nd isotope study of mid-Atlantic Ridge basalts from 30°N to 50°N. 716 Earth and Planetary Science Letters, vol.146, pp.259-272, 1997.

A. Zindler and S. Hart, Chemical geodynamics. Annual Review of Earth and Planetary 718 Sciences, vol.14, pp.493-571, 1986.