Abstract
It is now widely accepted that the Earth's mantle is isotopically heterogeneous, but the scale and distribution of this heterogeneity and the structure and evolution of the mantle as a whole are poorly understood. The 'Dupal anomaly'1,2 has an important bearing on this problem because it is the largest isotopic domain yet delineated on the Earth's surface and it is suggested2 to have been formed early in the Earth's history. Here I show that the two Dupal anomaly maxima appear to be closely associated with the two large-scale regions of low seismic velocity in the lower mantle3, which in turn are correlated with the loci of active hotspots. This correlation raises the possibility that large-scale structural features in the lower mantle produce geochemical imprints on the Earth's surface. Thus, the correlation may place severe constraints on the chemical structure of the mantle and the nature of mantle convection.
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References
Dupré, B. & Allègre, C. J. Nature 303, 142–146 (1983).
Hart, S. R. Nature 309, 753–757 (1984).
Dziewonski, A. M. J. geophys. Res. 89, 5929–5952 (1984).
Stefanik, M. & Jurdy, D. J. geophys. Res. 89, 9919–9925 (1984).
Jordan, T. H. J. Geophys. 43, 473–496 (1977).
Craeger, K. C. & Jordan, T. H. J. geophys. Res. 91, 3573–3589 (1986).
Silver, P. G. & Chan, W. W. J. geophys. Res. 91, 13787–13802 (1986).
Silver, P. G., Carlson, R. W. & Olson, P. A. Rev. Earth planet. Sci. 16, 477–541 (1988).
Cole, M. W., Hanan, B. B., Kingsley, R. & Schilling, J.-G. Eos 66, 408 (1985).
Klein, E. M., Langmuir, C. H., Zindler, A., Staudigel, H. & Hamelin, B. Nature 333, 623–629 (1988).
Macdougal, J. D. & Lugmair, G. W. Earth planet Sci. Lett. 77, 273–284 (1986).
White, W. M., Hofmann, A. W. & Purchelt, H. J. geophys. Res. 92, 4881–4893 (1987).
Shirey, S. B., Bender, J. F. & Langmuir, C. H. Nature 325, 217–223 (1987).
Hawkesworth, C. J., Norry, M. J., Roddick, J. C. & Vollmer, R. Nature 280, 28–31 (1979).
Dupré, B., Hamelin, B., Allègre, C. J. & Manhes, G. US Geol. Survey Open File Rep. 103, 78–701 (1978).
Dupuy, C., Vidal, P., Barszus, H. G. & Chauvel, C. Earth planet. Sci. Lett. 82, 145–152 (1987).
Wright, E. & White, W. M. Earth planet. Sci. Lett. 81, 151–162 (1986/1987).
Batiza, R. Nature 309, 440–441 (1984).
Allègre, C. J., Hamelin, B. & Dupré, B. Earth planet Sci. Lett. 71, 71–84 (1984).
Ito, E., White, W. M. & Gopel, C. Chem. Geol. 62, 157–176 (1987).
Schilling, J.-H. Earth planet Sci. Lett. 25, 103–115 (1975).
Hanan, B. B., Kingsley, R. H. & Schilling, J.-G. Nature 322, 137–144 (1986).
Hamelin, B., Dupré, B. & Allègre, C. J. Earth planet Sci. Lett. 67, 340–350 (1984).
Batiza, R. & Castillo, P. R. Eos 69, 491 (1988).
Zindler, A., Staudigel, H. & Batiza, R. Earth planet Sci. Lett. 70, 175–195 (1984).
Batiza, R. & Vanko, D. J. geophys. Res. 89, 11235–11260 (1984).
Allègre, C. J. Tectonophysics 81, 395–400 (1982).
Zindler, A. & Hart, S. R. A. Rev. Earth planet. Sci. 14, 493–571 (1986).
Gerlach, D. G., Hart, S. R., Morales, V. W. & Palacios, C. Nature 322, 165–169 (1986).
Hawkesworth, C. J., Mantovani, M. S. M., Taylor, P. N. & Palacs, Z. Nature 322, 356–359 (1986).
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Castillo, P. The Dupal anomaly as a trace of the upwelling lower mantle. Nature 336, 667–670 (1988). https://doi.org/10.1038/336667a0
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DOI: https://doi.org/10.1038/336667a0
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