Geochemical evidence for excess iron in the mantle beneath Hawaii

Science

Volumn 306, Issue 5693, 2004, Pages 91-94

  Humayun, Munir ^a,b   Qin, Liping ^a   Norman, Marc D ^c  

^a UNIVERSITY OF CHICAGO   (United States)

^b FLORIDA STATE UNIVERSITY   (United States)

^c AUSTRALIAN NATIONAL UNIVERSITY   (Australia)

Author keywords

[No Author keywords available]

Indexed keywords

EARTH (PLANET); FLUXES; IRON COMPOUNDS; REACTION KINETICS; VOLCANOES;

CHEMICAL INTERACTION; ISOTOPE RATIO; MASS FLUX;

GEOCHEMISTRY;

IRON; MANGANESE; OSMIUM;

GEOCHEMISTRY; IRON; MANTLE CHEMISTRY; OUTER CORE;

ARTICLE; GEOCHEMISTRY; GEOLOGY; MINERALOGY; PACIFIC ISLANDS; PHYSICAL MODEL; PRIORITY JOURNAL; TOMOGRAPHY; UNITED STATES;

HAWAII [UNITED STATES]; NORTH AMERICA; UNITED STATES; WESTERN HEMISPHERE; WORLD;

HAWAIIA;

EID: 7444237523     PISSN: 00368075     EISSN: None     Source Type: Journal    
DOI: 10.1126/science.1101050     Document Type: Article

References (30)

1. A. D. Brandon, M. D. Norman, R. J. Walker, J. W. Morgan, Earth Planet. Sci. Lett. 174, 25 (1999).
2. E. Knittle, R. Jeanloz, Science 251, 1438 (1991).
3. D. Walker, Geochim. Cosmochim. Acta 64, 2897 (2000).
4. D. C. Rubie, C. K. Gessmann, D. J. Frost, Nature 429, 58 (2004).
5. I. S. Puchtel, M. Humayun, Geochim. Cosmochim. Acta 64, 4227 (2000).
6. B. Buffett, E. J. Garnero, R. Jeanloz, Science 290, 1338 (2000).
7. A. Schersten, T. Elliott, C. Hawkesworth, M. Norman, Nature 427, 234 (2004).
8. G. Ravizza, J. Blusztajn, H. M. Prichard, Earth Planet. Sci. Lett. 188, 369 (2001).
9. A. D. Brandon et al., Earth Planet. Sci. Lett. 206, 411 (2003).
10. L. H. Kellogg, B. H. Hager, R. D. van der Hilst, Science 283, 1881 (1999).
11. E. J. Garnero, Annu. Rev. Earth Planet. Sci. 28, 509 (2000).
12. A. M. Forte, J. X. Mitrovica, Nature 410, 1049 (2001).
13. W. F. McDonough, S.-s. Sun, Chem. Geol. 120, 223 (1995).
14. C. H. Langmuir, G. N. Hanson, Philos. Trans. R. Soc. London Ser. A 297, 383 (1980).
15. A. Ruzicka, G. A. Snyder, L. A. Taylor, Geochim. Cosmochim. Acta 65, 979 (2001).
16. Materials and methods are available as supporting material on Science Online.
17. M. D. Norman, M. O. Garcia, Earth Planet. Sci. Lett. 168, 27 (1999).
18. M. J. Walter, J. Petrol. 39, 29 (1998).
19. M. Pertermann, M. M. Hirschmann, J. Geophys. Res. 108, 2125, 10.1029/2000J8000118 (2003).
20. M. Pertermann, M. M. Hirschmann, J. Petrol. 44, 2173 (2003).
21. T. Kogiso, M. M. Hirschmann, D. J. Frost. Earth Planet. Sci. Lett. 216, 603 (2003).
22. J.-P. Poirier, Phys. Earth Planet. Inter. 85, 319 (1994).
23. -4. These experiments imply that metallic liquids in equilibrium with lower mantle mineralogy should be very low in oxygen content and that FeO should be released from the core to the mantle at the CMB, if oxygen is present in the outer core at 9 weight percent (wt %) (FeO = 40 wt %) (22).
24. T. Lay, Q. Williams, E. J. Garnero, Nature 392, 461 (1998).
25. A. M. Jellinek, M. Manga, Nature 418, 760 (2002).
26. N. L. Chabot, A. J. Campbell, J. H. Jones, M. Humayun, C. B. Agee, Meteoritics Planet. Sci. 38, 181 (2003).
27. Q. Williams, J. Revenaugh, E. Garnero, Science 281, 546 (1998).
28. S. Rost, J. Revenaugh, Science 294, 1911 (2001).
29. A. M. Jellinek, M. Manga, Rev. Geophysics. 42, RC3002, 10.1029/2003RC000144 (2004).
30. We thank S. Sorenson (Smithsonian Institution) and A. T. Anderson for providing samples; A. J. Campbell for support on the Element; and A. D. Brandon, B. Buffett, M. Hirschmann, and C. Langmuir for comments and discussions. Constructive reviews by C.-T. Lee and P. Reiners are gratefully acknowledged. NSF EAR-0309786 (M.H.) supported this work.