Abstract
THE fate of pelagic sediments in subduction zones has an important bearing on global geochemical cycles and the thermal structure of subduction zones. Recent mass-balance calculations1 have indicated that about 20% of subducted sediments are recycled to volcanic arcs. Trace-element studies2 of these volcanic arcs imply that the subducted sediment melts while the gabbroic crust that underlies it dehydrates. This requires a rather specific thermal structure in subduction zones. Here we report laboratory melting experiments that allow us to derive melting curves for pelagic red clay at pressures of up to 40 kbar, equivalent to depths of 120 km within the mantle. The melting behaviour of wet red clay is similar to that for wet gabbro, but melting occurs at a slightly lower temperature, showing that sediment melting and gabbro dehydration can occur at the same temperature.The combination of trace-element data and phase diagrams such as that derived here may thus be used to constrain the temperature of the slab–mantle boundary.
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References
Plank, T. & Langmuir, C. H. Nature 362, 739–742 (1993).
Plank, T. thesis, Columbia Univ. (1993).
Green, T. H. & Ringwood, A. E. Contr. Miner. Petrol. 18, 105–162 (1968).
Basaltic Volcanism Study Project Basaltic Volcanism on the Terrestrial Planets (Pergamon, New York, 1981).
Gill, J. Orogenic Andesites and Plate Tectonics (Springer, Heidelberg, 1981).
Defant, M. J. & Drummond, M. S. Nature 347, 662–665 (1990).
Kay, S. M., Ramos, V. A. & Marquez, M. J. Geol. 101, 703–714 (1993).
Peacock, S. M., Rushmer, T. & Thompson, A. B. Earth planet. Sci. Lett. 121, 227–244 (1994).
Coats, R. R. in The Crust of the Pacific Basin 92–109 (Geophysics Monograph 6, American Geophysical Union, Washington DC, 1962).
Armstrong, R. L. Rev. Geophys. 6, 175–199 (1968).
Oxburgh, E. R. & Turcotte, D. L. Nature 218, 1041–1043 (1968).
Sinha, A. K. & Hart, S. R. Carnegie Inst. Wash. Yearb. 71, 309–312 (1972).
Oversby, V. M. & Ewart, A. Contr. Miner. Petrol. 37, 181–210 (1972).
Kay, R. W., Sun, S.-S. & Lee-Hu, C.-N. Geochim. cosmochim. Acta 42, 263–273 (1978).
White, W. M. & Dupré, B. J. geophys. Res. 91, 5927–5941 (1986).
Tera, F. et al. Geochim. cosmochim. Acta 50, 535–550 (1986).
Morris, J. D., Leeman, W. P. & Tera, F. Nature 344, 31–36 (1990).
Hawkesworth, C. J., Hergt, J. M., Ellam, R. M. & McDermott, F. Phil. Trans. R. Soc. 335, 393–405 (1991).
Hawkesworth, C. J., Gallagher, K. Hergt, J. M. & McDermott, F. Phil. Trans. R. Soc. 342, 179–191 (1993).
Moore, J. C. Geology 3, 530–532 (1975).
Rea, D. K. & Ruff, L. J. SUBCON (abstr.) 51 (1994).
Stern, C. R. thesis, Univ. Chicago (1973).
Stern, C. R. & Wyllie, P. J. Contr. Miner. Petrol. 42, 313–323 (1973).
Boettcher, A. L. & Wyllie, P. J. J. Geol. 76, 235–244 (1968).
Stern, C. R. & Wyllie, P. J. J. geophys. Res. 86, 10412–10422 (1981).
Johnson, M. C. & Plank, T. Eos 74, 680 (1993).
Vielzeuf, D. & Holloway, J. R. Contr. Miner. Petrol. 98, 257–276 (1988).
Nichols, G. T., Wyllie, P. J. & Stern, C. R. SUBCON (abstr.) 208–210 (1994).
Huang, W.-L., Wyllie, P. J. & Nehru, C. E. Am. Miner. 65, 285–301 (1980).
Davies, J. H. & Stevenson, D. J. J. geophys. Res. 97, 2037–2070 (1992).
Molnar, P. & England, P. J. geophys. Res. 95, 4833–4856 (1990).
Ringwood, A. E. Chem. Geol. 82, 187–207 (1990).
Lambert, I. B. & Wyllie, P. J. J. Geology 80, 693–708 (1972).
Pawley, A. R. & Holloway, J. R. Science 260, 664–667 (1993).
Wyllie, P. J. & Wolf, M. B. in Magmatic Processes and Plate Tectonics (eds Prichard, H. M., Alabaster, T., Harris, N. B. W. & Neary, C. R.) 405–416 (Spec. Publ. 76, Geol. Soc., London, 1993).
Plank, T. & Langmuir, C. H. Eos 73, 637 (1992).
Wyllie, P. J. Am. Miner. 64, 469–500 (1979).
Boettcher, A. L. & Wyllie, P. J. Geochim. cosmochim. Acta 33, 611–632 (1969).
Takahashi, E. J. geophys. Res. 91, 9367–9382 (1986).
Green, D. H. Earth planet. Sci. Lett. 19, 37–53 (1973).
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Nichols, G., Wyllie, P. & Stern, C. Subduction zone melting of pelagic sediments constrained by melting experiments. Nature 371, 785–788 (1994). https://doi.org/10.1038/371785a0
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DOI: https://doi.org/10.1038/371785a0
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