Letter | Published:

Phlogopite stability and the 87Sr/86Sr step in basalts along the Reykjanes Ridge

Abstract

THE relatively sharp step in the 87Sr/86Sr ratio within basalts midway along the Reykjanes Ridge may reflect the breakdown of titaniferous phlogopite during variable fusion of an essentially homogeneous phlogopite-lherzolite upper mantle, extending beneath both Iceland and the submarine parts of the Mid-Atlantic Ridge.

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References

  1. 1

    Schilling, J.-G., Nature, 242, 565–571 (1973).

  2. 2

    Hart, S. R., and Schilling, J.-G., Yb. Carnegie Inst. Washington, 72, 259–262 (1973)

  3. 3

    Hart, S. R., Schilling, J.-G., and Powell, J. L., Nature phys. Sci., 246, 104–107 (1973)

  4. 4

    O'Hara, M. J., Nature, 243, 507–508 (1973).

  5. 5

    Treuil, M., and Varet, J., Bull. Soc. géol. France, 15, 506–540 (1973).

  6. 6

    Pálmason, G., Soc. Sci. Isl., 40, 1–187 (1971).

  7. 7

    Shaw, H. S., J. Petrol., 10, 510–535 (1969).

  8. 8

    Talwani, M., Windisch, C. C., and Langseth, G., Jr, J. geophys. Res., 76, 473–517 (1971).

  9. 9

    Moore, J. G., Fleming, H. S., and Phillips, J. D., Geology, 2, 437–440 (1974).

  10. 10

    Hekinian, R., J. geol. Soc. London (in the press).

  11. 11

    Shaw, H. S., and Jackson, E. D., J. geophys. Res., 78, 8634–8652 (1973).

  12. 12

    Weertman, J., Bull. Geol. Soc. Am., 83, 3531–3532 (1972).

  13. 13

    Walcott, R. I., J. geophys. Res., 75, 3941–3954 (1970).

  14. 14

    Kushiro, I., Syono, Y., and Akimoto, S., Earth planet. Sci. Lett., 3, 197–203 (1967).

  15. 15

    Dawson, J. B., and Powell, D. G., Contr. Min. Petrol., 22, 233–237 (1969).

  16. 16

    Dawson, J. B., Powell, D. G., and Reid, A. M., J. Petrol., 11, 519–548 (1970).

  17. 17

    Flower, M. F. J., Contr. Min. Petrol., 32, 126–137 (1971).

  18. 18

    Modreski, P. J., and Boettcher, A. L., Am. J. Sci., 272, 852–869 (1972).

  19. 19

    Modreski, P. J., and Boettcher, A. L., Am. J. Sci., 273, 385–414 (1973).

  20. 20

    Sigvaldason, G. E., Steinthorsson, S., Oskarsson, N., and Imsland, P., Nature, 251, 579–582 (1974).

  21. 21

    O'Nions, R. K., and Pankhurst, R. J., J. Petrol., 15, 603–634 (1974).

  22. 22

    Yoder, H. S., Jr, and Kushiro, I., Am. J. Sci., 267 A, 558–582 (1969).

  23. 23

    Forbes, W. C., and Flower, M. F. J., Earth planet. Sci. Lett., 22, 60–66 (1974).

  24. 24

    Kushiro, I., and Thompson, R. N., Yb. Carnegie Inst. Washington, 71, 403–406 (1972)

  25. 25

    Thompson, R. N., Contr. Min. Petrol., 45, 317–341 (1974).

  26. 26

    Turcotte, D. L., and Oxburgh, E. R., J. Fluid. Mech., 28, 29–42 (1967).

  27. 27

    Bottinga, Y., Tectonophysics, 21, 15–38 (1974).

  28. 28

    Green, D. H., and Ringwood, A. E., Earth planet. Sci. Lett., 3, 151–160 (1967).

  29. 29

    Kushiro, I., Tectonophysics, 17, 211–222 (1973).

  30. 30

    Ridley, W. I., and Dawson, J. B., Abs. Int. Conf. Kimberlites, Cape Town 277–278 (1973)

  31. 31

    Gast, P. W., Geochim. cosmochim. Acta, 32, 1057–1086 (1968).

  32. 32

    Schmincke, H.-U., and Flower, M. F. J., Naturwissenschaften, 61, 288–297 (1974).

  33. 33

    O'Hara, M. J., Earth Sci. Rev., 4, 69–133 (1968).

  34. 34

    Barrett, D. R., Abs. Int. Conf. Kimberlites, Cape Town 19–21 (1973).

  35. 35

    Paul, D. K., Contr. Min. Petrol., 34, 22–28 (1971).

  36. 36

    Stueber, A. M., and Ikramuddin, M., Geochim. cosmochim. Acta, 38, 207–216 (1974).

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