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The structure of the Vladikavkaz Fault Zone based on the study utilizing a complex of geological-geophysical methodsстатья
Дата последнего поиска статьи во внешних источниках: 23 сентября 2021 г.
- Авторы: Gorbatikov A.V., Ovsyuchenko A.N., Rogozhin E.A., Stepanova M.Yu, Larin N.V.
- Журнал: Seismic Instruments
- Том: 47
- Номер: 4
- Год издания: 2011
- Первая страница: 307
- Последняя страница: 313
- DOI: 10.3103/s0747923911040037
- Аннотация: The Vladikavkaz Fault Zone is a regional boundary between the Alpine foldedblock system of the Greater Caucasus and PreCaucasus foredeep (Ossetian Depression). A complex of geological and geomorpho logical techniques was used for its study. The data of recent activity of discontinuous and folded dislocations were obtained as a result. Additional application of the microseismic sounding method allowed us to trace the behav ior at depth and along the direction of the Vladikavkaz Fault Zone’s branches known on the Earth’s surface from geological and geophysical surveys. An idea of the threedimensional structure of this system of tectonic faults was made up. It was shown that the structure of the upper section of the fault zone has a form of listric fold thrust, and in the deep layers of the Earth’s crust it is represented by a wellformed contrast zone with subvertical plunging. Expressive deformations of young sediments and a clear manifestation of the fault zone at a depth make it possible to consider the Vladikavkaz Fault as a major seismogenerating structure. Keywords: tectonics, recent activity, seismicity, the Earth crust, faults, weakened zones, geologicmorpholog ical analysis, satellite data, image interpretation, lineaments, tectonic break, microseismic field of the Earth, surface type seismic waves, microseismic sounding.
- Добавил в систему: Ларин Николай Владимирович