| Title | Study of stresses and ruptures in earthquake foci with the help of dislocation theory |
| Download | Download (whole publication) |
| Author | Balakina, L M; Shirokova, H I; Vvedenskaya, A V |
| Source | A symposium on earthquake mechanism; by Hodgson, J H (ed.); Publications of the Dominion Observatory vol. 24, no. 10, 1961 p. 321-327, https://doi.org/10.4095/313001 (Open Access) |
| Year | 1961 |
| Publisher | Canada Department of Mines and Technical Surveys |
| Meeting | International Union of Geodesy and Geophysics, Association of Seismology and Physics of the Earth's Interior, Twelfth General Assembly; Helsinki; FI; 1960 |
| Document | serial |
| Lang. | English |
| Media | paper; on-line; digital |
| Related | This publication is contained in Hodgson, J H; (1961). A
symposium on earthquake mechanism, Publications of the Dominion Observatory vol. 24 no. 10 |
| File format | pdf |
| Subjects | geophysics; tectonics; mathematical and computational geology; seismology; earthquakes; earthquake mechanisms; crustal movements; faulting; stress analyses; earthquake foci; methodology |
| Illustrations | schematic representations; stereonet projections; tables; geoscientific sketch maps |
| Released | 1961 01 01; 2018 11 19 |
| Abstract | The paper reviews the authors' work done mainly during the three-year period since the Toronto meetings. A theory is first outlined, based on the theory of dislocations, which permits the determination
of the principal axes of stress in an. earthquake focus. The technique for the application of the method, based on the first motion in P, SH and SV, and using the Wulff stereographic projection, is then described. This method has been applied to
earthquakes in three regions. In the Hindu Kush it is shown that the regional pressure acts in a horizontal plane and normal to the strike direction of the mountain range. The tension acts along the direction to the zenith. In the northwestern
Pacific the pressure axes for most foci are also oriented perpendicular to the geological features. In Prebaikalye, on the other hand, it is the tension axes which are normal to the geological features. |
| GEOSCAN ID | 313001 |
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