Seismic waves converted from velocity gradient anomalies in the Earth's upper mantle

Geophysical Journal International

Volumn 138, Issue 3, 1999, Pages 747-756

  Bostock, M G ^a  

^a UNIVERSITY OF BRITISH COLUMBIA   (Canada)

Author keywords

Body waves; Lithosphere; Mantle discontinuities; Mode coupling; Seismic wave propagation

Indexed keywords

LITHOSPHERE; SEISMIC WAVE; UPPER MANTLE; WAVE PROPAGATION;

EID: 0032746671     PISSN: 0956540X     EISSN: None     Source Type: Journal    
DOI: 10.1046/j.1365-246X.1999.00902.x     Document Type: Article

References (25)

1. Anderson, D.L., 1989. Theory of the Earth, Blackwell Scientific Publications, London.
2. Babuska, V. & Cara, M., 1991. Seismic Anisotropy in the Earth. Kluwer Academic, Dordrecht.
3. Backus, G.E., 1962. Long-wave elastic anisotropy produced by horizontal layering, J. geophys. Res., 67, 4427-4440.
4. Bellman, R. & Vasudevan, R., 1986. Wave Propagation, an Invariant Imbedding Approach, D. Riedel, Dordrecht.
5. Benz, H.M. & Vidale, J.E., 1993. Sharpness of upper-mantle dis-continuities determined from high-frequency reflections. Nature, 365, 147-150.
6. Bostock, M.G., 1998. Mantle stratigraphy and evolution of the Slave province, J. geophys. Res., 103, 21 183-21 200.
7. Chapman, C.H., 1974. The turning point of elastodynamic waves, Geophys. J. R. astr. Soc., 39, 613-621.
8. Farra, V., Vinnik, L.P., Romanowicz, B., Kosarev, G.L. & Kind, R., 1991. Inversion of teleseismic S particle motion for azimuthal anisotropy in the upper mantle: a feasibility study, Geophys. J. Int., 106, 421-431.
9. Grand, S.P., 1994. Mantle shear structure beneath the Americas and surrounding oceans, J. geophys. Res., 99, 11 591-11 621.
10. Herrera, I. & Mal, A.K. 1965., A perturbation method for elastic wave propagation, II - small inhomogeneities, J. geophys. Res., 70, 871-883.
11. Hudson, J.A., 1977. Scattered waves in the coda of P, J. Geophys., 43, 359-374.
12. Kennett, B.L.N., 1983. Seismic Wave Propagation in Stratified Media, Cambridge University Press, Cambridge.
13. Kennett, B.L.N., 1984. Guided wave propagation in laterally varying media - I. Theoretical development, Geophys. J. K. astr. Soc., 79, 235-255.
14. Kennett, B.L.N. & Illingworth, M.R., 1981. Seismic waves in a stratified half space - III. Piecewise smooth models, Geophys. J. R. astr. Soc., 66, 633-675.
15. Martin, B.E. & Thomson, C.J., 1998. Modelling surface waves in anisotropie structures, II, Examples, Phys. Earth planet. Inter., 103, 253-279.
16. McCoy, J. & Frazer, L.N., 1986. Propagation modelling based on wavefield factorization and invariant imbedding, Geophys. J. R. astr. Soc., 86, 703-717.
17. Petersen, N., Vinnik, L., Kosarev, G., Kind, R., Oreshin, S. & Stammler, K., 1993. Sharpness of the mantle discontinuities, Geophys. Res. Lett., 20, 859-862.
18. Richards, P.G., 1972. Seismic waves reflected from velocity gradient anomalies in Earth's upper mantle, J. Geophys., 38, 517-527.
19. Richards, P.G. & Frasier, C.W., 1976. Scattering of elastic waves from depth-dependent inhomogeneities, Geophysics, 41, 441-458.
20. Sluijter, F.W., 1970. Arbitrariness of dividing the total field in an optically inhomogeneous medium into direct and reversed waves, J. Opt. Soc. Am., 60, 8-10.
21. Tromp, J. & Snieder, R. 1989., The reflection and transmission of plane P- and S-waves by a continuously stratified band: a new approach using invariant imbedding, Geophys. J., 96, 447-456.
22. Ursin, B., 1983. Review of elastic and electromagnetic wave propagation in horizontally layered media. Geophysics, 48, 1063-1081.
23. van der Hilst, R.V., Widiyantoro, S. & Engdahl, E.R., 1997. Evidence for deep mantle circulation from global tomography, Nature. 386, 578-584.
24. Woodhouse, J.H., 1974. Surface waves in a laterally varying layered structure, Geophys. J. R. astr. Soc., 37, 461-490.
25. Woodhouse, J.H., 1978. Asymptotic results for elastodynamic propagator matrices in plane stratified and spherically stratified earth models, Geophys. J. R. astr. Soc., 54, 263-280.