Buchbinder, Goetz G. R. (1989) Shear-wave splitting and anisotropy in the Charlevoix seismic zone, Quebec, in 1985. Canadian Journal of Earth Sciences, 26 (12) 2691-2696 doi:10.1139/e89-228
| Reference Type | Journal (article/letter/editorial) | ||
|---|---|---|---|
| Title | Shear-wave splitting and anisotropy in the Charlevoix seismic zone, Quebec, in 1985 | ||
| Journal | Canadian Journal of Earth Sciences | ||
| Authors | Buchbinder, Goetz G. R. | Author | |
| Year | 1989 (December 1) | Volume | 26 |
| Issue | 12 | ||
| Publisher | Canadian Science Publishing | ||
| DOI | doi:10.1139/e89-228Search in ResearchGate | ||
| Generate Citation Formats | |||
| Mindat Ref. ID | 480327 | Long-form Identifier | mindat:1:5:480327:4 |
| GUID | 0 | ||
| Full Reference | Buchbinder, Goetz G. R. (1989) Shear-wave splitting and anisotropy in the Charlevoix seismic zone, Quebec, in 1985. Canadian Journal of Earth Sciences, 26 (12) 2691-2696 doi:10.1139/e89-228 | ||
| Plain Text | Buchbinder, Goetz G. R. (1989) Shear-wave splitting and anisotropy in the Charlevoix seismic zone, Quebec, in 1985. Canadian Journal of Earth Sciences, 26 (12) 2691-2696 doi:10.1139/e89-228 | ||
| In | (1989, December) Canadian Journal of Earth Sciences Vol. 26 (12) Canadian Science Publishing | ||
| Abstract/Notes | During the month of October 1985 a second experiment was undertaken in the Charlevoix seismic zone to further test the hypothesis that shear-wave splitting could be observed in a seismically active region. The first experiment had been undertaken in 1984 and yielded only a very limited amount of data. Seismograms recorded by digital three-component seismographs located very close to the epicentres of seven earthquakes showed shear-wave splitting over 15 different paths. The amount of [Formula: see text] wave variation varied from about 24 to 160 ms or from 0.4 to 8.7% of the [Formula: see text] wave velocity. The largest value occurred over the shortest path of about 7 km, for which essentially the whole path may be anisotropic, leading to a crack density (ε) of less than 0.09. For the rest of the data, all with less than 3% shear-wave-velocity variation, ε varies from 0.005 to 0.03, if whole-path anisotropy is assumed. These values of ε are not significantly different from those obtained in 1984. The average azimuth of the initial shear-wave polarization is 37°, also similar to that observed in 1984. All the data in the zone can be explained by the presence of saturated vertical cracks striking 37 °east of north. | ||
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