Geology, geography and global energy
Scientific and Technical Journal
New data the time of formation of objects composed by breeds with low porosity and permeability in a productive stratum Astrakhan carbonate massif
2017. №3, pp. 131-140
Stogniy Valeriy V. - D.Sc. in Geology & Mineralogy, Professor, Kuban State University, 149 Stavropolskaya st., Krasnodar, 350040, Russian Federation, stogny_vv@mail.ru
Stogniy Galina A. - D.Sc. in Geology & Mineralogy, Professor, Kuban State University, 149 Stavropolskaya st., Krasnodar, 350040, Russian Federation, stogny_vv@mail.ru
The distribution of the upper mantle earthquakes of the Crimean-Caucasian seismic zone, including seismically dangerous regions of the Crimea and the Greater Caucasus, is extremely uneven. The concentration of their epicenters is observed within the Kerch-Taman trough (Kerch-Taman region), in the border area of the northern slope of the Greater Caucasus with the Terek-Caspian trough (Tersko-Sunzhensky region) and in the south-western segment of the Middle Caspian. For the Kerch-Taman and Tersko-Sunzhensky areas of upper mantle earthquakes, the distribution of epicenters with respect to the structural elements of the consolidated layer of the earth's crust is analyzed. Epicenters of earthquakes in the Kerch-Taman region are concentrated mainly on the area of the Phanagorian block of the East-Black Sea geoblock, the distribution of the earthquake epicenters of the Tersko-Sunzhensky region with respect to tectonic disturbances of the consolidated layer of the earth's crust is not subject to any regularity. The local character of the manifestations of the foci of upper mantle earthquakes corresponds more closely to the seismogeodynamic model of the rheological heterogeneity of the upper mantle with the leading role of deep fluids in the formation of foci.
Key words: землетрясение, Крымско-Кавказская сейсмическая зона, земная кора, верхняя мантия, реология, флюидодинамический фактор, earthquake, Crimean-Caucasian seismic zone, earth crust, upper mantle, rheology, fluid dynamic factor
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