On the dynamics of a hydrous melt layer above the transition zone

Journal of Geophysical Research: Solid Earth

Volumn 112, Issue 7, 2007, Pages

  Leahy, Garrett M ^a   Bercovici, David ^a  

^a YALE UNIVERSITY   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

DEHYDRATION MELTING; DISCONTINUITY; DOWNWELLING; ENTRAINMENT; HYDROUS MINERAL; MANTLE PROCESS; SLAB; TRANSITION ZONE;

PACIFIC OCEAN;

EID: 34548539043     PISSN: 21699313     EISSN: 21699356     Source Type: Journal    
DOI: 10.1029/2006JB004631     Document Type: Article

References (34)

1. Aharonov, E., J. A. Whitehead, P. B. Kelemen, and M. Spiegelman (1995), Channeling instability of upwelling melt in the mantle, J. Geophys. Res., 100(B10), 20,433-20,450.
2. Aharonov, E., M. Spiegelman, and P. B. Kelemen (1997), Three-dimensional flow and reaction in porous media: Implications for the Earth's mantle and sedimentary basins, J. Geophys. Res., 102(B7), 14,821-14,833.
3. Angel, R. J., D. J. Frost, N. L. Ross, and R. Hemley (2001), Stabilities and equations of state of dense hydrous magnesium silicates, Phys. Earth Planet. Int., 127, 181-196.
4. Bercovici, D., and S. Karato (2003), Whole mantle convection and the transition-zone water filter, Nature, 425, 39-44.
5. 2O system up to 24 GPa: Implications for the distribution of water in the Earth's mantle, Earth Planet. Sci. Lett., 182, 209-221.
6. Bolfan-Casanova, N., H. Keppler, and D. C. Rubie (2003), Water partitioning at 660 km depth and evidence for very low water solubility in magnesium silicate perovskite, Geophys. Res. Lett., 30(17), 1905, doi:10.1029/2003GL017182.
7. Dasgupta, R., and M. M. Hirschmann (2006), Melting in the Earth's deep upper mantle caused by carbon dioxide, Nature, 440, 659-662, doi:10.1038/nature04612.
8. 2O in nominally anhydrous minerals in the upper mantle, Earth Planet. Sci. Lett., 236, 167-181.
9. Hofmann, A. W. (1997), Mantle geochemistry: The message from oceanic volcanism, Nature, 385, 219-228.
10. Huang, X., Y. Xu, and S. Karato (2005), Water content in the transition zone from electrical conductivity of wadsleyite and ringwoodite, Nature, 434, 746-749.
11. Huang, X., Y. Xu, and S. Karato (2006), A wet mantle conductor? (reply), Nature, 439, E3-E4, doi:10.1038/nature04.
12. 2O up to 15 GPa, Phys. Earth Planet. Int., 85, 237-263.
13. Karato, S., D. Bercovici, G. M. Leahy, G. Richard, and Z. Jing (2006), The transition-zone water filter model for global material circulation: Where do we stand?, in Earth's Deep Water Cycle, AGU Monogr., vol. 168, edited by S. Jacobsen and S. Van der Lee, pp. 289-313.
14. Katopodes, F. V., A. M. J. Davis, and H. A. Stone (2000), Piston flow in a two-dimensional channel, Phys. Fluids, 12(5), 1240-1243.
15. Kawamoto, T., R. L. Hervig, and J. R. Holloway (1996), Experimental evidence for a hydrous transition zone in the early Earth's mantle, Earth Planet. Sci. Lett., 142, 587-592.
16. Kelemen, P. B., J. A. Whitehead, E. Aharonov, and K.A. Jordahl (1995), Experiments on flow focusing in soluble porous media, with applications to melt extraction from the mantle, J. Geophys. Res., 100(B1), 475-496.
17. Koch, D. M., and D. L. Koch (1995), Numerical and theoretical solutions for a drop spreading below a free fluid surface, J. Fluid Mech., 287, 251-278.
18. 4, Contrib. Mineral. Petrol., 123, 345-357.
19. Lawrence, J. F., and M. E. Wysession (2006), Seismic evidence for subduction-transported water in the lower mantle, in Earth Deep Water Cycle, AGU Monogr., vol. 168, edited by S. Jacobsen and S. Van der Lee, p. 251.
20. Leahy, G. M., and D. Bercovici (2004), The influence of the transition zone water filter on convective circulation in the mantle, Geophys. Res. Lett., 31, L23605, doi:10.1029/2004GL021206.
21. 2O system up to 25 GPa, Phys. Earth Planet. Int., 134, 105-127.
22. Matsukage, K. N., Z. Jing, and S. Karato (2005), Density of hydrous silicate melt at the conditions of Earth's deep upper mantle, Nature, 438, 488-491, doi:10.1038/nature04.
23. Obayashi, M., H. Sugioka, J. Yoshimitsu, and Y. Fukao (2006), High temperature anomalies oceanward of subducting slabs at the 410-km discontinuity, Earth Planet. Sci. Lett., 243, 149-158.
24. Ohtani, E., Y. Nagata, A. Suzuki, and T. Kato (1995), Melting relations of peridotite and the density crossover in planetary mantles, Chem. Geol., 120, 207-221.
25. 2O at pressures up to 27 GPa, Phys. Chem. Miner., 27, 533-544.
26. Richard, G., M. Monnereau, and J. Ingrin (2002), Is the transition zone an empty water reservoir? Inferences from numerical model of mantle dynamics, Earth Planet. Sci. Lett., 205, 37-51.
27. Richard, G., D. Bercovici, and S. Karato (2006), Slab dehydration in the Earth's mantle transition zone, Earth Planet. Sci. Lett., 251, 156-167.
28. Richard, G., M. Monnereau, and M. Rabinowicz (2007), Slab dehydration and fluid migration at the base of the upper mantle: Implications for deep earthquake mechanisms, Geophys. J. Int., 168, 1291-1304.
29. 2O under upper mantle conditions, Conirib. Mineral. Petrol., 140, 607-618.
30. Van Keken, P. E., E. H. Hauri, and C. Ballentine (2002), Mantle mixing: The generation, preservation, and destruction of chemical heterogeneity, Annu. Rev. Earth Planet Sci., 30, 493-525.
31. Wang, W., and E. Takahashi (2000), Subsolidus and melting experiments of k-doped peridotite KLB-1 to 27 GPa: Its geophysical and geochemical implications, J. Geophys. Res., 105(B2), 2855-2868.
32. 2O on the 410-kilometer seismic discontinuity, Science, 268, 74-76.
33. Yoshino, T., Y. Nishihara, and S. Karato (2007), Complete wetting of olivine grain boundaries by a hydrous melt near the transition zone, Earth Planet. Sci. Lett., 256, 466-472.
34. Zhong, S. (1996), Analytic solutions for stokes' flow with lateral variations in viscosity, Geophys. J. Int., 124, 18-28.