New images of the Earth's upper mantle from measurements of surface wave phase velocity anomalies

Journal of Geophysical Research: Solid Earth

Volumn 107, Issue 4, 2002, Pages

  Boschi, Lapo ^a   Ekström, Göran ^a  

^a HARVARD UNIVERSITY   (United States)

Author keywords

Anisotropy; Continental roots; JWKB theory; Surface waves; Tomography; Upper mantle

Indexed keywords

CRUSTAL STRUCTURE; LOVE WAVE; PHASE VELOCITY; RAYLEIGH WAVE; SEISMIC TOMOGRAPHY; UPPER MANTLE;

EID: 0037973462     PISSN: 21699313     EISSN: 21699356     Source Type: Journal    
DOI: None     Document Type: Article

References (39)

1. Anderson, D. L., Theory of the Earth, Blackwell Sci., Malden, Mass., 1989.
2. Anderson, D. L., and A. M. Dziewonski, Upper mantle anisotropy: Evidence from free oscillations, Geophys. J. R. Astron. Soc., 69, 383-404, 1982.
3. Boschi, L., and A. M. Dziewonski, "High" and "low" resolution images of the Earth's mantle: Implications of different approaches to tomographic modeling, J. Geophys. Res., 104, 25,567-25,594, 1999.
4. Boschi, L., and A. M. Dziewonski, Whole Earth tomography from delay times of P, PcP, PKP phases: Lateral heterogeneities in the outer core, or radial anisotrophy in the mantle?, J. Geophys. Res., 105, 13,675-13,696, 2000.
5. Christensen, N. I., and M. H. Salisbury, Seismic anisotrophy in the oceanic upper mantle: Evidence from the Bay of Islands ophiolite complex, J. Geophys. Res., 84, 4601-4610, 1979.
6. Dziewonski, A. M., and D. L. Anderson, Preliminary reference Earth model, Phys. Earth Planet. Inter., 25, 297-356, 1981.
7. Ekström, G., Mapping the lithosphere and asthenosphere with surface waves: Lateral structure and anisotropy, in The History and Dynamics of Global Plate Motions, Geophys. Monogr. Ser. vol. 121, edited by M. Richards, R. G. Gordon, and R. D. van der Hilst, pp. 239-255, AGU, Washington, D. C., 2000.
8. Ekström, G., and A. M. Dziewonski, Three-dimensional velocity structure of the Earth's upper mantle, in Upper Mantle Heterogeneties From Active and Passive Seismology, edited by K. Fuchs, pp. 187-198, Kluwer Acad., Norwell, Mass., 1997.
9. Ekström, G., and A. M. Dziewonski, The unique anisotrophy of the Pacific upper mantle, Nature, 394, 168-172, 1998.
10. Ekström, G., J. Tromp, and E. W. F. Larson, Measurements and global models of surface wave propagation, J. Geophys. Res., 102, 8137-8157, 1997.
11. Gee, L. S., and T. H. Jordan, Polarization anisotrophy and fine-scale structure of the Eurasian upper mantle, Geophys. Res. Lett., 15, 824-827, 1988.
12. Grand, S. P., and D. V. Helmberger, Upper mantle shear structure of North America, Geophys. J. R. Astron. Soc., 76, 399-438, 1984.
13. Jordan, T. H., A procedure for estimating lateral variations from low- frequency eigenspectra data, Geophys. J. R. Astron. Soc., 52, 441-455, 1978.
14. Lancaster, P., and K. Šalkauskas, Curve and Surface Fitting - An Introduction, Academic, San Diego, Calif., 1986.
15. Larson, E. W. F., Measuring refraction and modeling velocities of surfaces waves, Ph.D. thesis, Harvard Univ., Cambridge, Mass., 2000.
16. Laske, G., Global observation of off-great-circle propagation of long-period surface waves. Geophys. J. Int., 123, 245-259, 1995.
17. Laske, G., and G. Masters, Constraints on global phase velocity maps from long-period polarization data, J. Geophys. Res., 101, 16,059-16,075, 1996.
18. Li, X. D., and B. Romanowicz, Global mantle shear velocity model developed using nonlinear asymptotic coupling theory, J. Geophys. Res., 101, 22,245-22,272, 1996.
19. Masters, G., S. Johnson, G. Laske, and H. Bolton, A shear-velocity model of the mantle, Philos. Trans. R. Soc. London, Ser. A, 354, 1385-1411, 1996.
20. Montagner, J.-P., and Tanimoto, Global anisotropy in the upper mantle inferred from the regionalization of phase velocities, J. Geophys. Res., 95, 4794-4819, 1990.
21. Montagner, J.-P., and Tanimoto, Global upper mantle tomography of seismic velocities and anisotropy, J. Geophys. Res., 96, 20,337-20,351, 1991.
22. Mooney, W. D., G. Laske, and G. Masters, CRUST-5.1: A global crustal model at 5° × 5°, J. Geophys. Res., 103, 727-747, 1998.
23. Nataf, H.-C., I. Nakanishi, and D. L. Anderson, Measurements of mantle wave velocities and inversion for lateral heterogeneities and anisotropy, 3, Inversion, J. Geophys. Res., 91, 7261-7307, 1986.
24. Nolet, G., Partitioned waveform inversion and two-dimensional structure under the network of autonomously recording seismographs, J. Geophys. Res., 95, 8499-8512, 1990.
25. Paige, C. C., and M. A. Saunders, LSQR: An algorithm for sparse linear equations and sparse least squares, ACM Trans. Math. Software, 8, 43-71, 1982.
26. Peselnick, L., and A. Nicolas, Seismic anisotropy in an ophiolite peridotite: Application to oceanic upper mantle, J. Geophys. Res., 83, 1227-1235, 1978.
27. Revenaugh, J., and T. H. Jordan, Mantle layering from ScS reverberations, 3, The upper mantle, J. Geophys. Res., 96, 19,781-19,810, 1991.
28. Ritsema, J., and H.-J. van Heijst, Seismic imaging of structural heterogeneity in Earth's mantle: Evidence for large-scale mantle flow, Sci. Prog., 83, 243-259, 2000.
29. Ritsema, J., H.-J. van Heijst, and J. H. Woodhouse, Complex shear wave velocity structure imaged beneath Africa and Iceland, Science, 286, 1925-1928, 1999.
30. Simons, F. J., A. Zielhuis, and R. van der Hilst, The deep structure of the Australian continent from surface-wave tomography, Lithos, 48, 17-43, 1999.
31. Takeuchi, M., and M. Saito, Seismic surface waves, in Seismology: Surface Waves and Free Oscillations, Methods Comput. Phys, vol. 11, edited by B. A. Bolt, pp. 217-295, Academic, San Diego, Calif., 1972.
32. Trampert, J., and J. H. Woodhouse, Global phase velocity maps of Love and Rayleigh waves between 40 and 150 seconds, Geophys. J. Int., 122, 675-690, 1995.
33. Tromp, J., and F. A. Dahlen, Variational principles for surface wave propagation on a laterally heterogeneous Earth 1, Time-domain JWKB theory, Geophys. J. Int., 109, 581-598, 1992a.
34. Tromp, J., and F. A. Dahlen, Variational principles for surface wave propagation on a laterally heterogeneous Earth, II, Frequency-domain JWKB theory, Geophys. J. Int., 109, 599-619, 1992b.
35. van der Lee, S., and G. Nolet, Upper mantle S velocity structure of North America, J. Geophys. Res., 102, 22,815-22,838, 1997.
36. Wang, Z., and F. A. Dahlen, JWKB surface-wave seismograms on a laterally heterogeneous earth, Geophys. J. Int., 119, 381-401, 1994.
37. Wessel, P., and W. H. F. Smith, Free software helps map and display data. Eos Trans. AGU, 72, 441, 445-446, 1991.
38. Woodhouse, J. H., and A. M. Dziewonski, Mapping the upper mantle: Three-dimensional modeling of the Earth structure by inversion of seismic waveforms, J. Geophys. Res., 89, 5953-5986, 1984.
39. Zhang, Y.-S., and T. Lay, Global surface wave phase velocity variations, J. Geophys. Res., 101, 8415-8436, 1996.