Imaging the lowermost mantle (D″) and the core-mantle boundary with SKKS coda waves

Geophysical Journal International

Volumn 175, Issue 1, 2008, Pages 103-115

  Wang, Ping ^a   De Hoop, Maarten V ^a,b   Van Der Hilst, Robert D ^a  

^a MASSACHUSETTS INSTITUTE OF TECHNOLOGY   (United States)

^b PURDUE UNIVERSITY   (United States)

Author keywords

Image processing; Wave scattering and diffraction

Indexed keywords

CODA; CORE-MANTLE BOUNDARY; DISCONTINUITY; IMAGE PROCESSING; MANTLE STRUCTURE; WAVE DIFFRACTION; WAVE FIELD; WAVE SCATTERING;

EID: 53549109703     PISSN: 0956540X     EISSN: 1365246X     Source Type: Journal    
DOI: 10.1111/j.1365-246X.2008.03861.x     Document Type: Article

References (25)

1. Aki, K. & Richards, P.G., 1980. Quantitative Seismology: Theory and Methods, Vol. 1, Freeman, San Francisco.
2. Alvarez, G. & Larner, K., 2004. Relative performance of moveout-based multiple-suppression methods for amplitude variation with offset (avo) analysis and common midpoint (cmp) stacking, Geophysics, 69, 275-285.
3. Beylkin, K., 1984. The inversion problem and applications of the generalized Radon transform, Comm. Pure Appl. Math., 37, 579-599.
4. Buffett, B.A., Garnero, E.J. & Jeanloz, R., 2000. Sediments at the top of the Earth's core, Science, 290, 1338-1342.
5. Burridge, R., de Hoop, M.V., Miller, D. & Spencer, C., 1998. Multiparameter inversion in anisotropic media, Geophys. J. Int., 134, 757-777.
6. Červený, V., 2001. Seismic Ray Theory, Cambridge University Press, Cambridge.
7. Chambers, K. & Woodhouse, J., 2006. Investigating the lowermost mantle using migrations of long-period S-ScS data, Geophys. J. Int., 166, 667-678.
8. Chapman, C.H., 1978. New method for computing synthetic seismograms, Geophys. J. Int., 54, 481-518.
9. Clitheroe, G. & Van der Hilst, R.D., 1998. Complex anisotropy in the Australian lithosphere from shear-wave splitting in broad-band SKS records, in Structure and Evolution of the Australian Continent: Geodynamics Series, Vol. 26, pp. 73-78, Braun, J., Dooley, J., Goleby, B., van der Hilst, R. and Klootwijk, C., American Geophysical Union, Washington, DC.
10. De Hoop, M.V. & Brandsberg-Dahl, S., 2000. Maslov asymptotic extension of generalized radon transform inversion in anisotropic elastic media: A least-squares approach, Inv. Prob., 16, 519-562.
11. Engdahl, E.R., van der Hilst, R.D. & Buland, R.P., 1998. Global teleseismic earthquake relocation from improved travel times and procedures for depth determination, Bull. seism. Soc. Am., 88 (3), 722-743.
12. Garnero, E.J., 2000. Heterogeneity of the lowermost mantle, Ann. Rev. Earth Planet. Sci., 28, 509-537.
13. Grand, S.P., 2002. Mantle shear-wave tomography and the fate of subducted slabs, Phil. Trans. Roy. Soc., A, 360, 2475-2491.
14. Hutko, A.R., Lay, T., Garnero, E.J. & Revenaugh, J., 2006. Seismic detection of folded, subducted lithosphere at the core-mantle boundary, Nature, 441, 333-336.
15. Kennett, B.L.N., Engdahl, E.R. & Buland, R.P., 1995. Constraints on seismic velocities in the Earth from travel times, Geophys. J. Int., 122, 108-124.
16. Lay, T. & Helmberger, D.V., 1983. A shear velocity discontinuity in the lower mantle, Geophys. Res. Lett., 10, 63-66.
17. Ma, P., Wang, P., de Hoop, M.V., Tenorio, L. & van der Hilst, R.D., 2007. Imaging of structure at and near the core mantle boundary using a generalized Radon transform II: Statistical inference of singularities, J. geophys. Res., 112, B08303.
18. Romanowicz, B., 2003. Global mantle tomography: Progress status in the past 10 years, Ann. Rev. Earth Planet. Sci., 31, 303-328.
19. Rost, S. & Revenaugh, J., 2004. Small-scale changes of core-mantle boundary reflectivity studied using core reflected PcP, Phys. Earth planet. Inter., 145, 19-36.
20. Sidorin, I., Gurnis, M. & Helmberger, D.V., 1999. Evidence for a ubiquitous seismic discontinuity at the base of the mantle, Science, 286, 1326-1331.
21. Sze, E. & van der Hilst, R.D., 2003. Core mantle boundary topography from short period PcP, PKP, and PKKP data, Phys. Earth planet. Inter., 135, 27-46.
22. Thomas, C., Garnero, E.J. & Lay, T., 2004. High-resolution imaging of lowermost mantle structure under the Cocos plate, J. geophys. Res., 109, B08307.
23. Van der Hilst, R.D., Widyantoro, S. & Engdahl, E.R., 1997. Evidence for deep mantle circulation from global tomography, Nature, 386, 578-584.
24. Van der Hilst, R.D., de Hoop, M.V., Wang, P., Shim, S.-H., Ma, P. & Tenorio, L., 2007. Seismo-stratigraphy and thermal structure of Earth's core-mantle boundary region, Science, 315, 1813-1817.
25. Wang, P., de Hoop, M.V., van der Hilst, R.D., Ma, P. & Tenorio, L., 2006. Imaging of structure at and near the core mantle boundary using a generalized Radon transform I: Construction of image gathers, J. geophys. Res., 111, B1230.