Lower mantle scattering profiles and fabric below Pacific subduction zones

Earth and Planetary Science Letters

Volumn 282, Issue 1-4, 2009, Pages 234-239

  Kaneshima, Satoshi ^a   Helffrich, George ^b  

^a KYUSHU UNIVERSITY   (Japan)

^b UNIVERSITY OF BRISTOL   (United Kingdom)

Author keywords

basaltic rocks; lower mantle; scattering waves; seismic array; small scale heterogeneity

Indexed keywords

BASALTIC ROCKS; LOWER MANTLE; SCATTERING WAVES; SEISMIC ARRAY; SMALL SCALE HETEROGENEITY;

BASALT; OCEAN ENGINEERING; OCEANOGRAPHY; SEISMOLOGY; TECTONICS;

SCATTERING;

CONTINENTAL ARC; CONTINENTAL CRUST; CRUSTAL EVOLUTION; LOWER MANTLE; MANTLE PROCESS; MID-OCEAN RIDGE BASALT; MIXING; PETROFABRIC; S-WAVE; SEISMOLOGY; SEISMOTECTONICS; SUBDUCTION ZONE; TECTONIC EVOLUTION; WAVE SCATTERING;

PACIFIC OCEAN; PACIFIC RIM;

EID: 67349180725     PISSN: 0012821X     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.epsl.2009.03.024     Document Type: Article

References (39)

1. Albarede F., and van der Hilst R.D. Zoned mantle convection. Phil. Trans. Roy. Soc. London A 360 (2002) 2569-2592
2. Anderson D.L., and Hart R.S. Q of the earth. J. Geophys. Res. 83 (1978) 5869-5882
3. Bina C.R. Seismological constraints upon mantle composition. Treatise on Geochemistry (2003), Elsevier 39-59
4. Bostock M.G. Linearized inverse scattering of teleseismic waves for anisotropic crust and mantle structure: 1. Theory. J. Geophys. Res. 108 (2003) 10.1029/2002JB001950
5. Carpenter M., Hemley R.J., and Mao H.-K. High-pressure elasticity of stishovite and the P4(2)/mnm ¡-¿ Pnnm phase transition. J. Geophys. Res. 105 (2000) 10807-10816
6. Castle J.C., and Creager K.C. A steeply dipping discontinuity in the lower mantle beneath Izu-Bonin. J. Geophys. Res. 104 (1999) 7279-7292
7. Christensen U.R., and Hofmann A.W. Segregation of subducted oceanic crust in the convecting mantle. J. Geophys. Res. 99 (1994) 19867-19884
8. Davies G.F. Stirring geochemistry in mantle convection models with stiff plates and slabs. Geochim. Cosmochim. Acta 66 (2002) 3125-3142
9. Frazer L.N., and Davies M.K. Kirchhoff-Helmholtz reflection seismograms in a laterally inhomogeneous multi-layered elastic medium - I. Theory. Geophys. J. R. Astron. Soc. 80 (1985) 121-147
10. Gurnis M., and Davies G.F. Mixing in numerical-models of mantle convection incorporating plate kinematics, mixing in the mantle and the possible survival of primitive mantle. J. Geophys. Res. 91 (1986) 6375-6395
11. Helffrich G., and Wood B. The Earth's mantle. Nature 412 (2001) 501-507
12. Hirose K., Takafuji N., Sata N., and Ohishi Y. Phase transition and density of subducted MORB crust in the lower mantle. Earth Planet. Sci. Lett. 237 (2005) 239-251
13. Hutko A.R., Lay T., Garnero E.J., and Revenaugh J. Seismic detection of folded, subducted lithosphere at the core-mantle boundary. Nature 325 (2006) 333-336
14. Kaneshima S., and Helffrich G. Detection of lower mantle scatterers northeast of the Marianna subduction zone using short-period array data. J. Geophys. Res. 103 (1998) 4825-4838
15. Kaneshima S., and Helffrich G. Dipping low-velocity layer in the mid-mantle: evidence for geochemical heterogeneity. Science 283 (1999) 1888-1891
16. Kaneshima S., and Helffrich G. Subparallel dipping heterogeneities in the mid-lower mantle. J. Geophys. Res. 108 (2003) 10.1029/2001JB001596
17. Kaneshima, S., submitted for publication, Seismic scatterers in the topmost lower mantle beneath the circum-Pacific area, Earth Planet Sci. Lett.
18. Kellogg L.H. Mixing in the mantle. Annu. Rev. Earth Planet. Sci. 20 (1992) 365-388
19. Kellogg L.H., and Turcotte D.L. Mixing and the distribution of heterogeneities in a chaotically convection mantle. J. Geophys. Res. 95 (1990) 421-432
20. Kellogg L.H., Hager B.H., and van der Hilst R.D. Compositional stratification in the deep mantle. Science 283 (1999) 1881-1884
21. Kennett B.L.N., Engdahl E.R., and Buland R. Constraints on seismic velocities in the Earth from travel times. Geophys. J. Int. 122 (1995) 108-124
22. Korneev V.A., and Johnson L.R. Scattering of P and S waves by a spherically symmetric inclusion. PAGEOPH 147 (1996) 675-718
23. 2 in the lower mantle of the earth. PNAS 104 (2007) 13588-13590
24. Masters G., Laske G., Bolton H., and Dziewonski A. The relative behavior of shear velocity, bulk sound speed, and compressional velocity in the mantle: implications for chemical thermal structure, earth's deep interior: mineral physics and tomography from the atomic to the global scale, geophysical monograph. Am. Geophys. Union (2000) 63-87
25. McNamara A.K., van Keken P.E., and Karato S. Development of finite strain in the convecting lower mantle and its implications for seismic anisotropy. J. Geophys. Res. 108 (2003) doi:10.101/2003JB02230
26. Nakagawa T., and Tackley P.J. Deep mantle heat flow and thermal evolution of the Earth's core in thermochemical multiphase models of mantle convection. Geochem. Geophys. Geosyst. 6 (2005) 10.1029/2005GC000967
27. Neidell N.S., and Taner M.T. Semblance and other coherency measures for multichannel data. Geophysics 36 (1971) 482-497
28. Niu F., Kawakatsu H., and Fukao Y. Seismic evidence for a chemical heterogeneity in the mantle: a strong and slightly dipping seismic reflector beneath the Mariana subduction zone. J. Geophys. Res. 108 (2003) 10.1029/2002JB002384
29. Reymer A., and Schubert G. Phanerozoic addition rate to the continental-crust and crustal growth. Tectonics 3 (1984) 63-77
30. Rowley D.B. Rate of plate creation and destruction: 180 Ma to present. Geol. Soc. Am. Bull. 114 (2002) 927-933
31. Samuel H., and Farnetani C.G. Thermochemical convection and helium concentrations in mantle plumes. Earth Planet. Sci. Lett. 207 (2003) 39-56
32. Simmons N.A., Forte A.M., and Grand S.P. Constraining mantle flow with seismic and geodynamic data: a joint approach. Earth Planet. Sci. Lett. 246 (2006) 109-124
33. Su W., and Dzewonski A.M. Simultaneous inversion for 3-D variations in shear and bulk velocity in the mantle. Phys. Earth Planet. Inter. 100 (1997) 135-156
34. Trampert J., Deschamps F., Resovsky J., and Yuen D. Probabilistic tomography maps chemical heterogeneities throughout the lower mantle. Science 306 (2004) 853-856
35. Vidale J.E., Schubert G., and Earle P.S. Unsuccessful initial search for a midmantle chemical boundary with seismic arrays. Geophys. Res. Lett. 28 (2001) 859-862
36. Wen L.X., and Anderson D.L. The fate of slabs inferred from seismic tomography and 130 million years subduction. Earth Planet. Sci. Lett. 133 (1995) 185-198
37. Wessel, P., Smith, W.H., 1995, New version of generic mapping tools, EOS Trans. AGU Electron. Suppl., Aug. 15.
38. Xie S.X., and Tackley P.J. Evolution of U-Th and Sm-Nd systems in numerical models of mantle convection and plate tectonics. J. Geophys. Res. 109 (2004) 10.1029/2004JB003176
39. Xu W., Lithgow-Bertelloni C., Stixrude X., and Ritsema J. The effect of bulk composition and temperature on mantle seismic structure. Earth Planet. Sci. Lett. 275 (2008) 70-79