On the anisotropy of sedimentary rocks from shear-wave analysis |
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| Authors: | N N Puzyrev I R Obolentseva A V Trigubov S B Gorshkalev |
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| Institution: | Institute of Geology and Geophysics, Academy of Sciences USSR (Siberian Branch), University Prospect 3, Novosibirsk-90 630090, USSR |
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| Abstract: | Summary. The paper describes some results of experimental seismic prospecting investigations of the anisotropic properties of sedimentary rocks at depths of less than 2.5 km. Shear and converted PS -waves were recorded. Examples of SV and SH velocity distributions and shear-wave polarization are given. The main conclusion is that the medium essentially differs from that usually adopted for sedimentary rocks in that the symmetry axis is not normal to the layering. |
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