Article | Published:

Seismic evidence for a fossil mantle plume beneath South America and implications for plate driving forces

Nature volume 378, pages 2531 (02 November 1995) | Download Citation

Subjects

Abstract

A teleseismic travel-time study reveals the presence of a fossil plume in the deep upper mantle beneath Brazil, which has apparently remained geographically fixed with respect to the overly-ing continent despite thousands of kilometres of plate motion. This result implies that the upper mantle and lithosphere beneath South America have remained coupled since the breakup of Gondwanaland and may provide an answer to the long-standing question of what forces drive continental plates.

Access optionsAccess options

Rent or Buy article

Get time limited or full article access on ReadCube.

from$8.99

All prices are NET prices.

References

  1. 1.

    & J. geophys. Res. 82, 1967–1984 (1977).

  2. 2.

    & Phys. Earth. planet. Inter. 9, 211–219 (1974).

  3. 3.

    Nature 274, 544–548 (1978).

  4. 4.

    , , , & An. Acad. bras. Ci. 65, 227–250 (1993).

  5. 5.

    & Precambr. Res. 53, 23–40 (1991).

  6. 6.

    & Geophys. Res. Lett. 17, 1109–1112 (1990).

  7. 7.

    & J. geophys. Res. 97, 11915–11931 (1992).

  8. 8.

    , & Science 246, 103–107 (1989).

  9. 9.

    & Nature 358, 57–59 (1992).

  10. 10.

    , , , & Earth planet. Sci. Lett. 121, 333–348 (1994).

  11. 11.

    & J. geophys. Res. 95, 17475–17502 (1990).

  12. 12.

    , , , & Int. Symp. Phys. Chem. Upper Mantle, invited Lectures (eds Teixeira, W. & Ribeiro, F. B.) 227–255 (Univ. São Paulo, 1994).

  13. 13.

    , & Proc. Acad. Sci. India (W. S. Fife meml Vol. (in the press).

  14. 14.

    , , , & J. Petrology (in the press).

  15. 15.

    , & Earth planet. Sci. Lett. 126, 315–331 (1994).

  16. 16.

    & Bull, seism. Soc. Am. 80, 150–169 (1990).

  17. 17.

    & Quantitative Seismology—Theory and Methods Vols 1 & 2 (Free-man, San Francisco, 1980).

  18. 18.

    , & Geophys. J. Int. 115, 482–496 (1993).

  19. 19.

    , & J. geophys. Res. 98, 12033–12054 (1993).

  20. 20.

    & Can. J. Earth Sci. 32, 1–12 (1995).

  21. 21.

    , & Geophysics 52, 289–300 (1987).

  22. 22.

    & Geophysics 59, 818–829 (1994).

  23. 23.

    , Geophysical Inverse Theory (Princeton Univ. Press, 1994).

  24. 24.

    Robust Statistics (Wiley, New York, 1981).

  25. 25.

    & Geophys. J. Int. 105, 429–465 (1991).

  26. 26.

    & J. Fluid Mech. 158, 511–531 (1985).

  27. 27.

    & J. geophys. Res. 96, 18295–18310 (1991).

  28. 28.

    & J. geophys. Res. 80, 705–717 (1975).

  29. 29.

    , & J. geophys. Res. 98, 19979–19990 (1993).

  30. 30.

    & J. geophys. Res. 99, 13813–13833 (1994).

  31. 31.

    thesis, Univ. Michigan (1992).

  32. 32.

    & Proc. Gen. Assembly Int. Union Geodesy Geophys. (IUGG) (abstr.) A417 (Am. Geophys. Union, Washington DC, 1995).

  33. 33.

    Handbook of Physical Properties of Rocks Vol 2 (ed. Carmichael, R. S.) 1–228 (CRC, Boca Raton, 1982).

  34. 34.

    J. geophys. Res. 95, 6715–6736 (1990).

  35. 35.

    & Geodynamics (Wiley, New York, 1982).

  36. 36.

    The Mantle Sample 1–14 (Am. Geophys. Union, Washington DC, 1979).

  37. 37.

    J. geol. Soc. Lond. 150, 927–940 (1993).

  38. 38.

    J. geol. Soc. Lond. 150, 923–926 (1993).

Download references

Author information

Affiliations

  1. Department of Terrestrial Magnetism, Carnegie Institution of Washington, 5241 Broad Branch Road, NW, Washington DC 20015, USA

    • John C. VanDecar
    •  & David E. James
  2. Institute Astrônomico e Geofíisica, Departamento de Geofísica, Universidade de São Paulo, São Paulo, Brazil

    • Marcelo Assumpção

Authors

  1. Search for John C. VanDecar in:

  2. Search for David E. James in:

  3. Search for Marcelo Assumpção in:

About this article

Publication history

Received

Accepted

Published

DOI

https://doi.org/10.1038/378025a0

Further reading

Comments

By submitting a comment you agree to abide by our Terms and Community Guidelines. If you find something abusive or that does not comply with our terms or guidelines please flag it as inappropriate.