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http://dx.doi.org/10.7582/GGE.2017.20.2.096

Moveout Velocities and Effective Anellipticity of the Crust in the Korean Peninsula  

Kim, Ki Young (Division of Geology and Geophysics, Kangwon National University)
Park, Iseul (Division of Geology and Geophysics, Kangwon National University)
Byun, Joongmoo (Department of Natural Resources and Environmental Engineering, Hanyang University)
Lee, Jung Mo (Department of Geology, Kyungpook National University)
Publication Information
Geophysics and Geophysical Exploration / v.20, no.2, 2017 , pp. 96-99 More about this Journal
Abstract
Virtual source data were produced by applying the seismic interferometry to the 2002 experimental seismic refraction data. Using the data, moveout velocities and effective anellipticity were experimentally computed for the crust at eight sites in the Korean peninsula. The moveout velocities of reflection events at approximate Moho depths were yielded to be $6.30{\pm}0.25km/s$ using near-offset traveltimes. Expanding the Taylor approximation to the $3^{rd}$ term for far-offset traveltimes, the effective anellipticity parameters were computed to be $0.18{\pm}0.07$ for the crust material.
Keywords
seismic interferometry; crust; moveout velocity; effective anellipticity;
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1 Abbad, B., Ursin, B., and Rappin, D., 2009, Automatic nonhyperbolic velocity analysis, Geophysics, 74, U1-U12.   DOI
2 Alkhalifah, T., 1997, Velocity analysis using nonhyperbolic moveout in transversely isotropic media, Geophysics, 62, 1839-1854.   DOI
3 Alkhalifah, T., and Tsvankin, I., 1995, Velocity analysis for transversely isotropic media, Geophysics, 60, 1550-1566.   DOI
4 Cho, H.-M., Baag, C.-E., Moon, W., Lee, J. M., Jung, H., Kim, K. Y., and Asudeh, I., 2006, Crustal velocity structure across the southern Korean Peninsula from the first crustal-scale refraction experiment, Geophysical Research Letters, 33, L06307, doi:10.1029/2005GRL025145.
5 Cho, H.-M., Baag, C.-E., Lee, J. M., Moon, W., Jung, H., and Kim, K. Y., 2013, P- and S-wave velocity model along crustal scale refraction and wide-angle reflection profile in the southern Korean Peninsula, Tectonophysics, 582, 84-100.   DOI
6 Crampin, S., 1984, An introduction to wave propagation in anisotropic media, Geophys. J. R. Astr. Soc., 76, 17-28.   DOI
7 Kim, K. Y., Lee, J. M., Moon, W., Baag, C.-E., Jung, H., and Hong, M. H., 2007a, Crustal structure of the southern Korean peninsula from seismic waves generated by large explosions in 2002 and 2004, Pure and Applied Geophysics, 164, 97-113.   DOI
8 Kim, K. Y., Lee, J. M., Moon, W., Baag, C.-E., Jung, H., and Lee, S. Y., 2007b, Seismic reflection image of the crust structure along the KCRT-2002 profile in the southern Korean peninsula, Geosciences Journal, 11, 219-228.   DOI
9 Levin, F. K., 1978, The reflection, refraction, and diffraction waves in media with an elliptical velocity dependence, Geophysics, 43, 528-537.   DOI
10 Schuster, G. T., 2009, Seismic Interferometry, Cambridge University Press, 260 p.
11 Takanashi, M., Nishizawa, O., Kanagawa, K., and Yasunaga, K., 2001, Laboratory measurements of elastic anisotropy parameters for the exposed crustal rocks from the Hidaka Metamorphic Belt, Central Hokkaido, Japan, Geophys. J. Int., 145, 33-47.   DOI
12 Taner, M. T., and Koehler, F., 1969, Velocity spectra - digital computer derivation and applications of velocity functions, Geophysics, 34, 859-881.   DOI
13 Tatham, R. J., and McCormack, M. D., 1991, Multicomponent seismology in petroleum exploration, Society of Exploration Geophysicists, Tulsa, 248p.
14 Thomsen, L., 1986, Weak elastic anisotropy, Geophysics, 51, 1954-1966. (Discussion in GEO-53-04-0558-0560 with reply by author).   DOI
15 Tsvankin, I., and Thomsen, L., 1994, Nonhyperbolic reflection moveout in anisotropic media, Geophysics, 59, 1290-1304.   DOI