Estimating the electrical conductivity of the melt phase of a partially molten asthenosphere from seafloor magnetotelluric sounding data

Physics of the Earth and Planetary Interiors

Volumn 227, Issue , 2014, Pages 41-47

  Utada, Hisashi ^a   Baba, Kiyoshi ^a  

^a UNIVERSITY OF TOKYO   (Japan)

Author keywords

Asthenosphere; Carbonatite melt; Electrical conductivity; Oceanic mantle; Partial melt; Seafloor magnetotellurics

Indexed keywords

ASTHENOSPHERE; CARBONATITES; ELECTRICAL CONDUCTIVITY; OCEANIC MANTLE; PARTIAL MELT; SEA FLOOR;

MAGNETOTELLURICS; MELTING; STRUCTURAL GEOLOGY;

ELECTRIC CONDUCTIVITY;

ASTHENOSPHERE; ELECTRICAL CONDUCTIVITY; MAGNETOTELLURIC METHOD; PARTIAL MELTING; SEAFLOOR; UPPER MANTLE;

EID: 84892450276     PISSN: 00319201     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.pepi.2013.12.004     Document Type: Article

References (45)

1. Anderson D.L., Sammis C. Partial melting in the upper mantle. Phys. Earth Planet. Inter. 1970, 3:41-50.
2. Baba K. Electrical structure in marine tectonic settings. Surv. Geophys. 2005, 26:701-731.
3. Baba K., Utada H., Goto T., Kasaya T., Shimizu H., Tada N. Electrical conductivity imaging of the Philippine Sea upper mantle using seafloor magnetotelluric data. Phys. Earth Planet. Inter. 2010, 183:44-62.
4. Baba K., Tada N., Utada H., Siripunvaraporn W. Practical incorporation of local and regional topography in three-dimensional inversion of deep ocean magnetotelluric data. Geophys. J. Int. 2013, 194:348-361. 10.1093/gji/ggt115.
5. Baba K., Tada N., Zhang L.L., Liang P.F., Shimizu H., Utada H. Is the electrical conductivity of the northwestern Pacific upper mantle normal?. Geochem. Geophys. Geosyst. 2013, 14. 10.1002/2013GC004997.
6. Constable S. SEO3: a new model of olivine electrical conductivity. Geophys. J. Int. 2006, 166:435-437.
7. Dasgupta R., Hirschmann M.M. Melting in the Earth's deep upper mantle caused by carbon dioxide. Nature 2006, 440:659-662.
8. Dasgupta R., Hirschmann M.M. Effect of variable carbonate concentration on the solidus of mantle peridotite. Am. Mineral. 2007, 92:370-379.
9. Dasgupta R., Mallik A., Tsuno K., Withers A.C., Hirth G., Hirschmann M.M. Carbon-dioxide-rich silicate melt in the Earth's upper mantle. Nature 2013, 493:211-216. 10.1038/nature11731.
10. Evans R.L., Hirth G., Baba K., Forsyth D., Chave A., Mackie R. Geophysical evidence from the MELT area for compositional controls on oceanic plates. Nature 2005, 437:249-252.
11. Filloux J.H. Magnetotelluric soundings over the Northeast Pacific may reveal spatial dependence of depth and conductance of the asthenosphere, Earth Planet. Sci. Lett. 1980, 46:244-252.
12. Gaillard F., Malki M., Iacono-Marziano G., Pichavant M., Scaillet B. Carbonatite melts and electrical conductivity in the asthenosphere. Science 2008, 322:1363-1365.
13. Hashin Z., Shtrikman S. A variational approach to the theory of effective magnetic permeability of multiphase minerals. J. Appl. Phys. 1962, 33:3125-3131.
14. Heinson G. Electromagnetic studies of the lithosphere and asthenosphere. Surv. Geophys. 1999, 20:229-255.
15. Hirano N., Takahashi E., Yamamoto J., Abe N., Ingle S.P., Kaneoka I., Hirata T., Kimura J.I., Ishii T., Ogawa Y., Machida S., Suyehiro K. Volcanism in response to plate flexure. Science 2006, 313:1426-1428. 10.1126/science.1128235.
16. Hirschmann M.M. Partial melts in the oceanic low velocity zone. Phys. Earth Planet. Inter. 2010, 179:60-71.
17. Hirschmann M.M., Tenner T., Aubaud C., Withers A.C. Dehydration melting of nominally anhydrous mantle: the primacy of partitioning. Phys. Earth Planet. Inter. 2009, 176:54-68.
18. Hirth G., Kohlstedt D.L. Water in the oceanic upper mantle: implications for rheology, melt extraction and the evolution of the lithosphere. Earth Planet. Sci. Lett. 1996, 144:93-108.
19. Holtzman B.K., Kohlstedt D.L. Stress-driven melt segregation and strain partitioning in partially molten rocks: effects of stress and strain. J. Petrol. 2007, 48:2379-2406.
20. Holtzman B.K., Kohlstedt D.L., Zimmerman M.E., Heidelbach F., Hiraga T., Hustoft J. Melt segregation and strain partitioning: implications for seismic anisotropy and mantle flow. Science 2003, 301:1227-1230.
21. Honkura Y. Partial melting and electrical conductivity anomalies beneath the Japan and Philippine seas. Phys. Earth Planet. Inter. 1975, 10:128-134.
22. Karato S. The role of hydrogen in the electrical conductivity of the upper mantle. Nature 1990, 347:272-273.
23. Karato S.I. On the origin of the asthenosphere, Earth Planet. Sci. Lett. 2012, 321-322:95-103.
24. Karato S.I., Jung H. Water, partial melting and the origin of the seismic low velocity and high attenuation zone in the upper mantle, Earth Planet. Sci. Lett. 1998, 157:193-207.
25. Kawakatsu H., Kumar P., Takei Y., Shinohara M., Kanazawa T., Araki E., Suyehiro K. Seismic evidence for sharp lithosphere-asthenosphere boundaries of oceanic plates. Science 2009, 324:499-502.
26. Langmuir C.H., Klein E.M., Plank T. Petrological systematics of the mid-ocean ridge basalts - constraints on melt generation beneath ocean ridges. AGU Geophys. Monogr. Ser. 1992, 71:183-280.
27. Matsuno T., Seama N., Evans R.L., Chave A.D., Baba K., White A., Goto T., Heinson G., Boren G., Yoneda A., Utada H. Upper mantle electrical resistivity structure beneath the central Mariana subduction system. Geochem. Geophys. Geosyst. 2010, 11:Q09003. 10.1029/2010GC003101.
28. Mei S., Kohlstedt D.L. Influence of water on plastic deformation of olivine aggregates 1. Diffusion creep regime. J. Geophys. Res. 2000, 105(B9):21457-21469.
29. Miyazaki T., Sueyoshi K., Hiraga T. Olivine crystals align during diffusion creep of Earth's upper mantle. Nature 2013, 502:321-326. 10.1038/nature12570.
30. Naif S., Key K., Constable S., Evans R.L. Melt-rich channel observed at the lithosphere-asthenosphere boundary. Nature 2013, 495:356-359. 10.1038/nature11939.
31. Ni H., Keppler H., Behrens H. Electrical conductivity of hydrous basaltic melts: implications for partial melting in the upper mantle. Contrib. Mineral. Petrol. 2011, 162:637-650. 10.1007/s00410-011-0617-4.
32. Park S.K., Ducea M.N. Can in situ measurements of mantle electrical conductivity be used to infer properties of partial melts?. J. Geophys. Res. 2003, 108:2270. 10.1029/2002JB001899.
33. Parsons B., Sclater J.G. An analysis of the variation of ocean floor bathymetry and heat flow with age. J. Geophys. Res. 1977, 82(5):803-827.
34. Pommier A., Le-Trong E. "SIGMELTS": a web portal for electrical conductivity calculations in geosciences. Comput. Geosci. 2011, 37:1450-1459.
35. Shankland T.J., Waff H.S. Partial melting and electrical conductivity anomalies in the upper mantle. J. Geophys. Res. 1977, 82:5409-5417.
36. Shinohara M., Fukano T., Kanazawa T., Araki E., Suyehiro K., Mochizuki M., Nakahigashi K., Yamada T., Mochizuki K. Upper mantle and crustal seismic structure beneath the Northwestern Pacific Basin using a seafloor borehole broadband seismometer and ocean bottom seismometers. Phys. Earth Planet. Inter. 2008, 170:95-106.
37. Tada N., Baba K., Siripunvaraporn W., Uyeshima M., Utada H. Approximate treatment of seafloor topographic effects in three-dimensional marine magnetotelluric inversion. Earth Planets Space 2012, 64:1005-1021.
38. ten Grotenhuis S.M., Drury M.R., Spiers C.J., Peach C.J. Melt distribution in olivine rocks based on electrical conductivity measurements. J. Geophys. Res. 2005, 110:B12201. 10.1029/2004JB003462.
39. Waff W.S. Theoretical considerations of electrical conductivity in a partially molten mantle and implications for geothermometry. J. Geophys. Res. 1974, 79:4003-4010.
40. Yoshino T., Matsuzaki T., Shatskiy A., Katsura T. The effect of water on the electrical conductivity of olivine aggregates and its implications for the electrical structure of the upper mantle, Earth Planet. Sci. Lett. 2009, 288:291-300.
41. Yoshino T., Yamazaki D., Mibe K. Well-wetted olivine grain boundaries in partially molten peridotite in the asthenosphere, Earth Planet. Sci. Lett. 2009, 283:167-173.
42. Yoshino T., Laumonier M., McIsaac E., Katsura T. Electrical conductivity of basaltic and carbonatite melt-bearing peridotites at high pressures: implications for melt distribution and melt fraction in the upper mantle, Earth Planet. Sci. Lett. 2010, 295:593-602.
43. Yoshino T., McIsaac E., Laumonier M., Katsura T. Electrical conductivity of partial molten carbonate peridotite. Phys. Earth Planet. Inter. 2012, 194-195:1-9.
44. Yukutake T., Filloux J.H., Segawa J., Hamano Y., Utada H. Preliminary report of a magnetotelluric array study in the Northwest Pacific. J. Geomag. Geoelectr. 1983, 35:575-587.
45. Zhdanov M.S., Wan L., Gribenko A., Cuma M., Key K., Constable S. Large-scale 3D inversion of marine magnetotelluric data: case study from the Gemini prospect, Gulf of Mexico. Geophysics 2011, 76:F77-F87. 10.1190/1.3526299.