HR: 0800h
AN: S21C-0712    [Abstracts]
TI: Influence of body-wave velocity characteristic on the seismic data interpretation in TI media with arbitrary spatial orientation
AU: * Hao, C
EM: haoct@ies.ac.cn
AF: Institute of Geology,China Earthquake Administration, Institute of Geology,China Earthquake Administration, Bejing, 100029, China
AU: Yao, C
EM: yao.chen@263.net
AF: Institute of Geology,China Earthquake Administration, Institute of Geology,China Earthquake Administration, Bejing, 100029, China
AB: TI media with arbitrary spatial orientation (ATI) is the actual anisotropic model used to describe tilted PTL (period thin layers) and no vertical fractured rock. We devote our paper to study the Influence of body-wave velocity characteristic on the seismic data interpretation in the ATI media. Based on the method of coordinates transformation for the TI media with arbitrary strength of anisotropy and arbitrary spatial orientation, we present the characteristic of body-wave velocity with incident angle and azimuth variation in the ATI media. The result shows that patterns of body-wave velocity are fixed relative to the symmetry axis, and these fixed patterns are closely relative to Thomsen's anisotropic parameters. Body-wave velocity characteristic depends just on the angle between the propagation direction and the symmetry axis. Therefore, with variations of spatial orientation of the symmetry axis and the surveying line azimuth, patterns of body-wave velocity have a variety, and have some symmetries, gradual changes and repetitions. The result is useful to processing and explaining of seismic data.
DE: 7200 SEISMOLOGY
DE: 7203 Body waves
DE: 7260 Theory
DE: 7290 Computational seismology
SC: Seismology [S]
MN: 2007 Fall Meeting