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Synthetic seismogram modeling of shear‐wave splitting in VSP data from the Geysers, California
Author(s) -
Shearer Peter M.
Publication year - 1988
Publication title -
geophysical research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.007
H-Index - 273
eISSN - 1944-8007
pISSN - 0094-8276
DOI - 10.1029/gl015i010p01085
Subject(s) - seismogram , geology , shear wave splitting , seismology , seismic anisotropy , anisotropy , shear (geology) , crust , synthetic seismogram , vertical seismic profile , upper crust , shear waves , geophysics , mantle (geology) , petrology , physics , optics
A vertical seismic profile data set showing shear‐wave splitting from The Geysers, California, can be approximately fit with synthetic seismograms calculated with geometrical ray theory for anisotropic models of aligned cracks in the uppermost crust. Limited agreement between data and synthetics can be obtained if the cracks are constrained to be vertical, but a much better fit is possible if the cracks dip at an angle of 55 degrees.