Parameters of the fault planes for the Crimean Black Sea region by averaged mechanism of close earthquakes

Автор(и)

  • L. A. Shumlyanskaya Institute of Geophysics, National Academy of Sciences of Ukraine, Kyiv, Україна
  • V. Yu. Burmin Institute of Physics of the Earth O. Yu. Schmidt, RAS, Moscow, Російська Федерація

DOI:

https://doi.org/10.24028/gzh.0203-3100.v38i3.2016.107782

Ключові слова:

modern stress field, faired mechanism, parameters of the ruptures of the active faults

Анотація

A modern field of stress of the Crimean Black Sea region was constructed. A method of averaged mechanisms was used to construct the field of stress, which uses the earthquakes of varying intensity, including weak ones that prevail in the region. The research allowed allocating 15 blocks in the areas with different pairs of forces compression-stretching. It has been shown that nodal plane, formed under the influence of these forces describes the planes of rupture of tectonically active faults. Types of movements within the faults, which occur in the Crimean Black Sea region, were found. It has been shown that the faults and types of movements along them are related to the relief of Moho surface, and subcrustal mantle is a source of movement into the faults. Non-double-dipole model of the source of stresses was used to solve averaged mechanism. It makes possible to show that the Yalta-Alushta seismo-focal zone was formed by rotating the surrounding blocks counterclockwise. The axis of rotation corresponds to cross-section of the Salgir-Oktyabr’ and Orehovo-Pavlograd faults.

Посилання

Balakina L. M., Vvedenskaya A. V., Golubeva N. V., Misharina L. A., Shirokova E. I., 1972. Elastic stress field of the Earth and earthquake focal mechanisms. Moscow: Nauka, 112 p. (in Russian).

Burmin V. Yu., 1992. New approach to the determination of hypocenter parameters close earthquakes. Vulkanologiya i seysmologiya (3), 73—82 (in Russian).

Burmin V. Yu., Shumlyans'ka L. O., 2015. Spatial distribution of earthquake hypocenters Crimean Black Sea region. Dopovidi NAN Ukrayiny (9), 67—73 (in Ukrainian).

Vvedenskaya A. V., 1969. Investigation of the stresses and ruptures in earthquake using the dislocation theory. Moscow: Nauka, 135 p. (in Russian).

Garkalenko I. A., 1970. About the deep faults of the south and south-east of Ukraine. Geologicheskiy zhurnal 30(3), 3—14 (in Russian).

Yermakov A. P., 2005. Deep structure of Black Sea basin as a result of a new interpretation of the seismic data: Dis. Cand. geol. and min. sci. Moscow. http://geo.web.ru/db/msg.html?mid=1173500&uri=part06.html (in Russian).

Zverev M. S., Boldyrev S. A., Burmin V. Yu., Mironova V. I., 1976. Micro earthquakes northern Iceland. Fizika Zemli (10), 22—32 (in Russian).

The Earth's crust and the history of the Black Sea basin, 1975. Eds. Yu. D. Boulanger, M. V. Muratov, S. I. Subbotin, B. K. Balavadze. Moscow: Nauka, 357 p. (in Russian).

Kapitonova S. A., Trosnikov V. N., 1983. The study of the deep fractures of the Crimea on the dynamics of body waves from distant earthquakes. In: The physics of seismic waves and the internal structure of the Earth. Moscow: Nauka, P. 208—218 (in Russian).

Kutas R. I., 2011. Geothermal sections of the crust and upper mantle of the Black Sea and the northern environment. Geofizicheskiy zhurnal 33(6), 50—67 (in Russian).

Kutinov Yu. G., Chistova Z. B., Belenovich T. Ya., 2014. Modern geodynamic regime of the Arctic continental margin areas. Prostranstvo i vremya (1), 208—115 (in Russian).

Kozlenko M. V., Kozlenko Yu. V., Lysynchuk D. V., 2013. structure of the crust north-western shelf of the Black Sea along the profile of the DSS number 26. Geofizicheskiy zhurnal 35(1), 142—152 (in Russian).

Misharina L. A., Solonenko N. V., 1977. Focal mechanisms of earthquakes and stress state of the Earth's crust in the Baikal rift zone. In: The role of the rift in the Earth's geological history. Novosibirsk: Nauka, P. 120—125 (in Russian).

Patalakha E. I., Senchenkov I. K., Gonchar V. V., 2006. Numerical model of plate tectonics of the Black Sea region. Geologiya i poleznye Mirovogo okeana (1), 37—54 (in Russian).

Pustovitenko B. G., 1978. Tectonic stresses in the crust of the Crimean region for the data of outbreaks of weak earthquakes. Geofizicheskiy sbornik AN USSR (is. 78), 15—23 (in Russian).

Pustovitenko A. N., Svidlova V. A., Pasynkov G. D., Kozinenko N. M., 2010. Seismicity of the Crimea in 2008. In: Seismological bulletin for 2008. Sevastopol: SPC "Ekosi-Gydrophysics", P. 6—11 (in Russian).

Rebetskiy Yu. L., 2007. Tektonicheskie voltage and field trigger mechanism of earthquake occurrence. Fizicheskaya mezomekhanika 1(10), 25—37 (in Russian).

Richter Ch., 1963. Elementary Seismology. Moscow: Publ. House of Foreign Literature, 670 p. (in Russian).

Safronov O. N., 2008. Crustal structure and seismicity of ancient platforms. Geodinamika (1), 78—88 (in Russian).

Safronov O. N., Sim L. A., 2005. Neo geodynamics south-western tip of the East European platform. Geopolitika i ekogeodinamika regionov (is. 2), 45—48 (in Russian).

Sollogub V. B., 1986. Lithosphere Ukraine. Kiev: Naukova Dumka, 184 p. (in Russian).

Sologub N. V., 1972. Structure of the crust of the Crimean Mountains on DSS data. Geofizicheskiy sbornik AN USSR (is. 77), 24—30 (in Russian).

Starostenko V. I., Makarenko I. B., Rusakov O. M., Pashkevich I. K., Kutas R. I., Legostaeva O. V., 2010. Geophysical heterogeneity of the lithosphere megadepression Black Sea. Geofizicheskiy zhurnal 32(5), 3—20 (in Russian).

Starostenko V. I., Pashkevich I. K., Makarenko I. B., Rusakov O. M., Kutas R. I., Legostaeva O. V., 2005. Fault tectonics of consolidated crust of the Black Sea northwestern shelf. Geofizicheskiy zhurnal 27(2), 195—207 (in Russian).

Tugolesov D. A., Gorshkov A. S., Meysner L. B., Solovyev V. V., Khakhalev E. M., 1985. Tectonics of the Mesozoic-Cenozoic deposits of the Black Sea basin. Moscow: Nedra, 215 p. (in Russian).

Tugolesov D. A., Solov’yev V. P., 1995. Tectonics and seismicity of the Caucasian Black Sea. Otechestvennaya geologiya (8), 37—45 (in Russian).

Farfulyak L. V., 2015. The nature of inclined seismic boundary in the Earth crust of the Scythian plate along the DOBRE-5 profile. Geofizicheskiy zhurnal 37(6), 64—85 (in Russian).

Chekunov A. V., 1972. Structure and tectonics of the Earth's crust south of the European part of the USSR. Kiev: Naukova Dumka, 175 p. (in Russian).

Yudin V. V., 2008. Geodynamics of the Black Sea-Caspian region. Kiev: UkrGGRI, 117 p. (in Russian).

Aki K., 1966. Earthquake generation stress in Japan for the years 1961 to 1963 obtained by smoothing the first motion radiation patterns. Bull. Earth. Res. Inst., Univ. Tokyo 44(2), 447—471.

Becker T. W., Lebedev S., Long M. D., 2012. On the relationship between azimuthal anisotropy from shear wave splitting and surface wave tomography. J. Geophys. Res. 117, B01306—B01322.

Doglioni С., Carminati E., Crespi M., Cuffaro M., Penati M., Riguzzi F., 2014. Tectonically asymmetric Earth: From net rotation to polarized westward drift of the lithosphere. Geoscience Frontiers 6(is. 3), 401—418. DOI:10.1016/j.gsf.2014.02.001.

Schaefer J. F., Boschi L., Becker T. W., Kissling E., 2011. Radial anisotropy in the European mantle: Tomographic studies explored in terms of mantle flow. Geophys. Res. Lett. 38, L23304— L23318.

Yegorova T., Gobarenko V., 2010. Structure of the Earth's crust and upper mantle of the West- and East-Black Sea Basins revealed from geophysical data and its tectonic implications. Geol. Soc. London. Spec. Publ. Vol. 340. P. 23—42.

##submission.downloads##

Опубліковано

2016-07-01

Як цитувати

Shumlyanskaya, L. A., & Burmin, V. Y. (2016). Parameters of the fault planes for the Crimean Black Sea region by averaged mechanism of close earthquakes. Геофізичний журнал, 38(3), 100–116. https://doi.org/10.24028/gzh.0203-3100.v38i3.2016.107782

Номер

Розділ

Статті