Abstract
Basalts from many Southern Hemisphere regions have anomalous Sr and Pb isotopic characteristics. This article shows that the isotopic mantle anomaly is globe-encircling in extent, centred on latitude 30° S. Arguments suggesting that this mantle anomaly has been in existence for billions of years place severe constraints on mantle convection models.
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References
Dupré, B. & Allègre, C. J. Nature 303, 142–146 (1983).
Hedge, C. E. Earth planet. Sci. Lett. 38, 88–94 (1978).
Zindler, A., Jaqoutz, E. & Goldstein, S. Nature 298, 519–523 (1982).
Gill, J. B. Earth planet. Sci. Lett. (in the press).
Duncan, R. A. & Compston, W. Geology 4, 728–732 (1976).
White, W. M. & Hofmann, A. W. Nature 296, 821–825 (1982).
Tatsumoto, M., Unruh, D. M., Pettingill, H. S., Basu, A. R. & Barsczus, H. G. EOS 64, 348 (1983).
Vidal, Ph., Chauvel, C. & Brousse, R. Nature 307, 536–538 (1984).
Swainbank, I. G. thesis, Columbia Univ. (1967).
Chase, C. G. Nature 282, 464–468 (1979).
Busse, F. H. Geophy. Res. Lett. 10, 285–288 (1983).
Stille, P., Unruh, D. M. & Tatsumoto, M. Nature 304, 25–29 (1983).
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. U.S. geol. Surv. Open File Rep. 78–701, 103 (1978).
Davies, G. F. Nature 290, 208–213 (1981).
Allègre, C. J., Brevart, O., Dupré, B. & Minster, J. F. Phil. Trans. R. Soc. 297, 447–477 (1980).
Jacobsen, S. B. & Wasserburg, G. J. J. geophys. Res. 84, 7411–7427 (1979).
DePaolo, D. J. Geochim. cosmochim. Acta 44, 1185–1196 (1980).
O'Nions, R. K., Evensen, N. M. & Hamilton, P. J. J. geophys. Res. 84, 6091–6101 (1979).
Armstrong, R. L. Rev. Geophys. 6, 175–199 (1968).
Hofmann, A. W. & White, W. M. Earth planet. Sci. Lett. 57, 421–436 (1982).
Chase, C. G. Earth planet. Sci. Lett. 52, 277–284 (1981).
Craig, H. & Rison, W. EOS 64, 348–348 (1983).
McKenzie, D. & O'Nions, R. K. Nature 301, 229–231 (1983).
Sinha, A. K. Yb Carnegie Instn Wash. 69, 405–408 (1971).
Cumming, G. L. & Richards, J. R. Earth planet. Sci. Lett. 28, 155–171 (1975).
Richards, J. R., Fletcher, I. R. & Blockley, J. G. Miner. Depos. 16, 7–30 (1981).
Manhes, G., Allègre, C. J., Dupré, B. & Hamelin, B. Earth planet. Sci. Lett. 44, 91–104 (1979).
Allègre, C. J., Dupré, B., Lambret, B. & Richard, P. Earth planet. Sci. Lett. 52, 85–92 (1981).
Sun, S. S. Phil. Trans. R. Soc. 297, 409–445 (1980).
Taras, B. EOS 64, 907 (1983).
Church, S. E. & Tatsumoto, M. Contr. Miner. Petrol. 53, 253–279 (1975).
Roden, M. F., Frey, F. A. & Francis, D. M. J. Petrol. (in the press).
Zartman, R. E. & Tera, F. Earth planet. Sci. Lett. 20, 54–66 (1973).
Zindler, G. A. thesis, MIT (1980).
Kay, R. W., Sun, S. S. & Lee-Hu, C. N. Geochim. cosmochim. Acta 42, 263–273 (1978).
Oversby, V. M. Geochim. cosmochim. Acta 36, 1167–1179 (1972).
Sun, S. S. & Hanson, G. N. Contr. Miner. Petrol. 52, 77–106 (1975).
Stuckless, J. S. & Ericksen, R. L. Contr. Miner. Petrol. 58, 111–126 (1976).
Roden, M. K., Hart, S. R., Frey, F. A. & Melson, W. G. Contr. Miner. Petrol. 85, 376–390 (1984).
Oversby, V. M. Earth planet. Sci. Lett. 11, 401–406 (1971).
Richardson, S. H., Erlank, A. J., Duncan, A. R. & Reid, D. L. Earth planet. Sci. Lett. 59, 327–342 (1982).
Cooper, J. A. & Green, D. H. Earth planet. Sci. Lett. 6, 69–76 (1969).
Dasch, E. J. & Green, D. H. Am. J. Sci. 275, 461–469 (1975).
Sinha, A. K., Davis, G. L., Hart, S. R. & Krogh, T. Yb Carnegie Instn Wash. 69, 386–388 (1971).
Futa, K. & LeMasurier, W. E. Contr. Miner. Petrol. 83, 38–44 (1983).
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Hart, S. A large-scale isotope anomaly in the Southern Hemisphere mantle. Nature 309, 753–757 (1984). https://doi.org/10.1038/309753a0
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DOI: https://doi.org/10.1038/309753a0
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