Correlated He and Sr isotope ratios in South Atlantic near-ridge seamounts and implications for mantle dynamics

Earth and Planetary Science Letters

Volumn 144, Issue 3-4, 1996, Pages 491-503

  Graham, D W ^a   Castillo, P R ^b   Lupton, J E ^c   Batiza, R ^d  

^a OREGON STATE UNIVERSITY   (United States)

^b UNIVERSITY OF CALIFORNIA   (United States)

^c NOAA PACIFIC MARINE ENVIRONMENTAL LABORATORY   (United States)

^d UNIVERSITY OF HAWAII   (United States)

Author keywords

He 4 He 3; Mantle; Mid Atlantic Ridge; Mid ocean ridge basalts; Seamounts

Indexed keywords

HELIUM; ISOTOPIC COMPOSITION; MANTLE DYNAMICS; MID OCEAN RIDGE; MID-OCEAN RIDGES; SEAMOUNT; SEAMOUNTS; STRONTIUM;

ATLANTIC, MID ATLANTIC RIDGE;

EID: 0030429282     PISSN: 0012821X     EISSN: None     Source Type: Journal    
DOI: 10.1016/s0012-821x(96)00172-0     Document Type: Article

References (64)

1. A. Zindler, H. Staudigel and R. Batiza, Isotope and trace element geochemistry of young Pacific seamounts: implications for the scale of upper mantle heterogeneity, Earth Planet. Sci. Lett. 70, 175-195, 1984.
2. S.R. Hart, A large-scale isotope anomaly in the Southern Hemisphere mantle, Nature 309, 753-757, 1984.
3. W.M. White, Sources of oceanic basalts: radiogenic isotopic evidence, Geology 13, 115-118, 1985.
4. D.K. Blackman and D.W. Forsyth, Isostatic compensation of tectonic features of the Mid-Atlantic Ridge: 25°-27°30′S, J. Geophys. Res. 96, 11,741-11,758, 1991.
5. S.M. Carbotte, S.M. Welch and K.C. Macdonald, Spreading rates, rift propagation and fracture zone offset histories during the past 5 my on the Mid-Atlantic Ridge: 25°-27°30′S and 31°-34°30′S, Mar. Geophys. Res. 13, 51-80, 1991.
6. N.R. Grindlay, P.J. Fox and P.R. Vogt, Morphology and tectonics of the Mid-Atlantic Ridge (25°-27°30′S) from Sea Beam and magnetic data, J. Geophys. Res. 97, 6983-7010, 1992.
7. N.R. Grindlay, P.J. Fox and K.C. Macdonald, Second-order ridge axis discontinuities in the South Atlantic: morphology, structure and evolution, Mar. Geophys. Res. 13, 21-49, 1991.
8. R. Batiza, W.G. Melson and T. O'Hearn, Simple magma supply geometry inferred beneath a segment of the Mid-Atlantic Ridge, Nature 335, 428-431, 1988.
9. P. Castillo and R. Batiza, Strontium, neodymium and lead isotope constraints on near-ridge seamount production beneath the South Atlantic, Nature 342, 262-265, 1989.
10. Y. Niu and R. Batiza, Magmatic processes at a slow-spreading ridge segment: 26°S Mid-Atlantic Ridge, J. Geophys. Res. 99, 19719-19740, 1994.
11. D. Graham, J. Lupton, F. Albarède and M. Condomines, Extreme temporal homogeneity of helium isotopes at Piton de la Fournaise, Réunion Island, Nature 347, 545-548, 1990.
12. R. Batiza, P.J. Fox, P.R. Vogt, S.C. Cande, N.R. Grindlay, W.G. Melson and T. O'Hearn, Morphology, abundance, and chemistry of near-ridge seamounts in the vicinity of the Mid-Atlantic Ridge ∼ 26°S, J. Geol. 97, 209-220, 1989.
13. B.B. Hanan, D.W. Graham, P.J. Michael and J.-G. Schilling, He and Pb isotope constraints for the origin of a short wavelength geochemical anomaly along the South Atlantic mid-ocean ridge, EOS 73, 582-583, 1992.
14. D.W. Graham, W.J. Jenkins, M.D. Kurz and R. Batiza, Helium isotope disequilibrium and geochronology of glassy submarine basalts, Nature 326, 384-386, 1987.
15. 204Pb in MORB and open system evolution of the depleted mantle, Earth Planet. Sci. Lett. 115, 211-226, 1993.
16. P.J. Michael, D.W. Forsyth, D.K. Blackman, P.J. Fox, B.B. Hanan, A.J. Harding, K.C. Macdonald, G.A. Neumann, J.A. Orcutt, M. Tolstoy and C.M. Weiland, Mantle control of a dynamically evolving spreading center: Mid-Atlantic Ridge 31-34°S, Earth Planet. Sci. Lett. 121, 451-468, 1993.
17. D.W. Graham, W.J. Jenkins, J.-G. Schilling, G. Thompson, M.D. Kurz and S.E. Humphris, Helium isotope geochemistry of mid-ocean ridge basalts from the South Atlantic, Earth Planet. Sci. Lett. 110, 133-147, 1992.
18. B.B. Hanan, R.H. Kingsley and J.-G. Schilling, Pb isotope evidence in the South Atlantic for migrating ridge-hotspot interactions, Nature 322, 137-144, 1986.
19. J.-G. Schilling, G. Thompson, R.H. Kingsley and S.E. Humphris, Hotspot-migrating ridge interaction in the South Atlantic: geochemical evidence, Nature 313, 187-191, 1985.
20. M.D. Kurz, W.J. Jenkins and S.R. Hart, Helium isotopic systematics of oceanic islands and mantle heterogeneity, Nature 297, 43-46, 1982.
21. C.J. Allègre and D.L. Turcotte, Geodynamic mixing in the mesosphere boundary layer and the origin of oceanic islands, Geophys. Res. Lett. 12, 207-210, 1985.
22. C.J. Allègre, T. Staudacher, P. Sarda and M. Kurz, Constraints on evolution of earth's mantle from rare gas systematics, Nature 303, 762-766, 1983.
23. L.H. Kellogg and G.J. Wasserburg, The role of plumes in mantle helium fluxes, Earth Planet. Sci. Lett. 99, 276-289, 1990.
24. R.K. O'Nions and E.R. Oxburgh, Heat and helium in the Earth, Nature 306, 429-431, 1983.
25. G.F. Davies, Mantle plumes, mantle stirring and hotspot chemistry, Earth Planet. Sci. Lett. 99, 94-109, 1990.
26. A.W. Hofmann, K.P. Jochum, M. Seufert and W.M. White, Nb and Pb in oceanic basalts: new constraints on mantle evolution, Earth Planet. Sci. Lett. 79, 33-45, 1986.
27. D.W. Graham, S.E. Humphris, W.J. Jenkins and M.D. Kurz, Helium isotope geochemistry of some volcanic rocks from Saint Helena, Earth Planet. Sci. Lett. 110, 121-131, 1992.
28. M. Moreira, T. Staudacher, P. Sarda, J.-G. Schilling and C.J. Ailègre, A solar neon component in MORB: the Shona anomaly, South Atlantic (52°S), Earth Planet. Sci. Lett. 133, 1995.
29. M.D. Kurz, Helium isotopic geochemistry of oceanic volcanic rocks: implications for mantle heterogeneity and degassing, Ph.D. Thesis, MIT/WHOI, 1982.
30. C.H. Langmuir, R.D.J. Vocke, G.N. Hanson and S.R. Hart, A general mixing equation with applications to Icelandic basalts, Earth Planet. Sci. Lett. 37, 380-392, 1978.
31. F.M. Richter and S.F. Daly, Dynamical and chemical effects of melting a heterogeneous source, J. Geophys. Res. 94, 12,499-12,510, 1989.
32. S.R. Hart, Equilibration during mantle melting: a fractal tree model, Proc. Natl. Acad. Sci. USA 90, 11,914-11,918, 1993.
33. P.B. Kelemen, J.E. Quick and H.J.B. Dick, Formation of harzburgite by pervasive melt/rock reaction in the upper mantle, Nature 358, 635-641, 1992.
34. B.B. Hanan and D.W. Graham, Lead and helium isotope evidence from oceanic basalts for a common deep source of mantle plumes, Science 272, 991-995, 1996.
35. J.J. Mahoney, J.M. Sinton, M.D. Kurz, J.D. Macdougall, K.J. Spencer and G.W. Lugmair, Isotope and trace element characteristics of a super-fast spreading ridge: East Pacific Rise, 13-23°S, Earth Planet. Sci. Lett. 121, 173-193, 1993.
36. R.J. Poreda, J.-G. Schilling and H. Craig, Helium and hydrogen isotopes in ocean-ridge basalts north and south of Iceland, Earth Planet. Sci. Lett. 78, 1-17, 1986.
37. R.J. Poreda, J.-G. Schilling and H. Craig, Helium isotope ratios in Easter Microplate basalts, Earth Planet. Sci. Lett. 119, 319-329, 1993.
38. J.E. Lupton, D.W. Graham, J.R. Delaney and H.P. Johnson, Helium isotope variations in Juan de Fuca Ridge basalts, Geophys. Res. Lett. 20, 1851-1854, 1993.
39. S.R. Hart, E.H. Hauri, L.A. Oschmann and J.A. Whitehead, Mantle plumes and entrainment: isotopic evidence, Science 256, 517-520, 1992.
40. E.H. Hauri, J.A. Whitehead and S.R. Hart, Fluid dynamic and geochemical aspects of entrainment in mantle plumes, J. Geophys. Res. 99, 24,275-24,300, 1994.
41. A. Zindler and S.R. Hart, Chemical geodynamics, Annu. Rev. Earth Planet. Sci. 14, 493-571, 1986.
42. S.R. Hart, Heterogeneous mantle domains: signature, genesis and mixing chronologies, Earth Planet. Sci. Lett. 90, 273-296, 1988.
43. P. Castillo, The Dupal anomaly as a trace of the upwelling lower mantle, Nature 336, 667-670, 1988.
44. R.K. O'Nions and I.N. Tolstikhin, Behaviour and residence times of lithophile and rare gas tracers in the upper mantle, Earth Planet. Sci. Lett. 124, 131-138, 1994.
45. R.K. O'Nions, Relationships between chemical and convective layering in the Earth, J. Geol. Soc. London 144, 259-274, 1987.
46. C.J. Allègre, T. Staudacher and P. Sarda, Rare gas systematics: formation of the atmosphere, evolution and structure of the Earth's mantle, Earth Planet. Sci. Lett. 81, 127-150, 1986/1987.
47. R.K. O'Nions and I.N. Tolstikhin, Limits on the mass flux between lower and upper mantle and stability of layering, Earth Planet. Sci. Lett. 139, 213-222, 1996.
48. C.J. Allègre, Chemical geodynamics, Tectonophysics 81, 109-132, 1982.
49. P.J. Tackley, D.J. Stevenson, G.A. Glatzmaier and G. Schubert, Effects of an endothermic phase transition at 670 km depth in a spherical model of convection in the Earth's mantle, Nature 361, 699-703, 1993.
50. L.P. Solheim and W.R. Peltier, Avalanche effects in phase transition modulated thermal convection: a model for Earth's mantle, J. Geophys. Res. 99, 6997-7018, 1994.
51. P. Machetel and P. Weber, Intermittent layered convection in a model mantle with an endothermic phase change at 670 km. Nature 350, 55-57, 1991.
52. M. Stein and A.W. Hofmann, Mantle plumes and episodic crustal growth, Nature 372, 63-68, 1994.
53. Y. Fukao, R. Obayashi, H. Inoue and M. Nenbai, Subducting slabs stagnant in the mantle transition zone, J. Geophys. Res. 97, 4809-4822, 1992.
54. U.R. Christensen and A.W. Hofmann, Segregation of subducted oceanic crust in the convecting mantle, J. Geophys. Res. 99, 19,867-19,884, 1994.
55. A.W. Hofmann and W.M. White, Mantle plumes from ancient oceanic crust, Earth Planet. Sci. Lett. 57, 421-436, 1982.
56. M.T. McCulloch, The role of subducted slabs in an evolving earth, Earth Planet. Sci. Lett. 115, 89-100, 1993.
57. T.W. Trull, S. Nadeau, F. Pineau, M. Polvé and M. Javoy, C-He systematics in hotspot xenoliths: implications for mantle carbon contents and carbon recycling, Earth Planet. Sci Lett. 118, 43-64, 1993.
58. D.L. Turcotte and G. Schubert, Tectonic implications of radiogenic noble gases in planetary atmospheres, Icarus 74, 36-46, 1988.
59. D. Porcelli and G.J. Wasserburg, Mass transfer of helium, neon, argon, and xenon through a steady-state upper mantle, Geochim. Cosmochim. Acta 59, 4921-4937, 1995.
60. S.J.G. Galer, S.L. Goldstein and R.K. O'Nions, Limits on chemical and convective isolation in the Earth's interior, Chem. Geol. 75, 257-290, 1989.
61. C.-Y. Chen and F.A. Frey, Trace element and isotopic geochemistry of lavas from Haleakala Volcano, East Maui, Hawaii: implications for the origin of Hawaiian basalts, J. Geophys. Res. 90, 8743-8768, 1985.
62. M.D. Kurz, M.O. Garcia, F.A. Frey and P.A. O'Brien, Temporal helium isotopic variations within Hawaiian volcanoes: basalts from Mauna Loa and Haleakala, Geochim. Cosmochim. Acta 51, 2905-2914, 1987.
63. B.A. Mamyrin, G.S. Anufriev, I.L. Kamenskii and I.N. Tolstikhin, Determination of the isotopic composition of atmospheric helium, Geochem. Int. 7, 498-505, 1970.
64. 3He, Int. J. Appl. Rad. Isot. 27, 515-522, 1976.