Seismic evidence for deep-water transportation in the mantle

Science

Volumn 316, Issue 5830, 2007, Pages 1468-1471

  Kawakatsu, Hitoshi ^a   Watada, Shingo ^a  

^a UNIVERSITY OF TOKYO   (Japan)

Author keywords

[No Author keywords available]

Indexed keywords

DEEP SEA; MANTLE; SEISMIC DATA; SUBDUCTION; TRANSPORT PROCESS;

ARTICLE; COLD; EARTHQUAKE; ENVIRONMENT; JAPAN; PRIORITY JOURNAL; SEA; WATER TRANSPORT;

ASIA; EURASIA; FAR EAST; JAPAN;

EID: 34250182800     PISSN: 00368075     EISSN: 10959203     Source Type: Journal    
DOI: 10.1126/science.1140855     Document Type: Article

References (31)

1. Y. Tatsumi, J. Geophys. Res. 94, 4697 (1989).
2. M. E. Magee, M. D. Zoback, Geology 21, 809 (1993).
3. S. Karato, in Geophys. Monogr. 138 (American Geophysical Union, Washington, DC, 2003), pp. 135-152.
4. H. Iwamori, Chem. Geol. 239, 182 (2007).
5. A. Hasegawa, N. Umino, A. Takagi, Tectonophysics 47, 43 (1978).
6. D. Zhao, A. Hasegawa, S. Horiuchi, J. Geophys. Res. 97, 19909 (1992).
7. J. Nakajima, T. Matsuzawa, A. Hasegawa, D. Zhao, J. Geophys. Res. 106, 21843 (2001).
8. J. Nakajima, Y. Takei, A. Hasegawa, Earth Planet. Sci. Lett. 234, 59 (2005).
9. Y. Tamura, Y. Tatsumi, D. Zhao, Y. Kido, H. Shukuno. Earth Planet. Sci. Lett. 197, 105 (2002).
10. S. Honda, T. Yoshida, Geochem. Geophys. Geosyst. 6, Q01002 10.1029/2004GC000785 (2005).
11. J. Nakajima, A. Hasegawa, Earth Planet. Sci. Lett. 225, 365 (2004).
12. S. M. Peacock, Geol. Soc. Am. Bull. 105, 684 (1993).
13. G. R. Helffrich, in Geophys. Monogr. 96 (American Geophysical Union, Washington, DC, 1996), pp. 215-222.
14. B. R. Hacker, S. M. Peacock, G. A. Abers, S. D. Holloway, J. Geophys. Res. 108, 2030 10.1029/2001JB001129 (2003).
15. T. Matsuzawa, N. Umino, A. Hasegawa, A. Takagi, Geophys. J. R. Astron. Soc. 86, 767 (1986).
16. X. Yuan et al., Nature 408, 958 (2000).
17. H. Iwamori, D. Zhao, Geophys. Res. Lett. 27, 425 (2000).
18. L. P. Vinnik, Phys. Earth Planet. Int. 15, 39 (1977).
19. C. A. Langston, J. Geophys. Res. 84, 4749 (1979).
20. C. J. Ammon, Bull. Seismol. Soc. Am. 81, 2504 (1991).
21. K. Obara, K. Kasahara, S. Hori, Y. Okada, Rev. Sci. Instrum. 76, 021301 10.1063/1.1854197 (2005).
22. The bottom of the serpentinite layer appears to be also slightly diffusive because it is not resolved in the higher-frequency image (SOM). If serpentinization of the mantle peridotite occurs in an equilibrium manner, this boundary may be expected to be sharp. Our result, however, does not support this scenario. The detailed mechanism of water transportation in the mantle wedge is poorly known, and some additional factor appears to be necessary to fully explain our observation.
23. H. Okada, J. Phys. Earth 27 (suppl.), S53 (1979).
24. G. A. Abers, Earth Planet. Sci. Lett. 176, 323 (2000).
25. A. Ferris, G. A. Abers, D. H. Christensen, E. Veenstra, Earth Planet. Sci. Lett. 214, 575 (2003).
26. T. Furumura, B. L. N. Kennett, J. Geophys. Res. 110, B10302 (2005).
27. H. Kawakatsu, S. Watada, EOS Trans. AGU 86 (Fall Meet. Suppl.), abstract DI41A (2005).
28. S. Kita, J. Nakajima, T. Matsuzawa, A. Hasegawa, Geophys. Res. Lett. 33, L24310 (2006).
29. B. R. Hacker, G. A. Abers, Geochem. Geophys. Geosyst. 5, Q01005 (2004).
30. A. Hasegawa, J. Nakajima, in Geophys. Monogr. 150 (American Geophysical Union, Washington, DC, 2004), pp. 81-94.
31. We thank H. Iwamori and C. Bina for discussions and J. Nakajima for the tomographic model. An anonymous reviewer provided useful comments. This research was supported by the Japan Society for the Promotion of Science and by the Ministry of Education, Culture, Sports, Science and Technology of Japan.