Common-conversion-point stacking of receiver functions for estimating the geometry of dipping interfaces
Common-conversion-point stacking of receiver functions for estimating the geometry of dipping interfaces
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DOI：
10.1111/j.1365-246x.2011.05001.x
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发表时间：
2011-06
影响因子：
2.8
通讯作者：
Y. Abe;T. Ohkura;K. Hirahara;T. Shibutani
中科院分区：
文献类型：
--
作者：
Y. Abe;T. Ohkura;K. Hirahara;T. Shibutani
SUMMARY We develop a new method to estimate geometries of dipping seismic velocity discontinuities from common conversion point stacking of receiver functions. The multistage fast-marching method is applied to the ray tracing with refraction at dipping interfaces. Although geometry of interfaces dipping at 30°–70° cannot be correctly estimated with a 1-D velocity model, it can be correctly estimated when refraction at dipping interfaces is taken into account. We apply this method to synthetic and observed data and confirm that geometries of dipping interfaces are successfully estimated. This method will contribute to revealing the structures beneath subduction zones where dipping interfaces exist.
