Structural analysis of Azerbaijan territory horizontal velocity movement based on GPS-measurements
DOI:
https://doi.org/10.24028/gzh.0203-3100.v42i1.2020.195468Keywords:
GPS (Global Positioning System), domain zone, the Caucasus, collision, seismic activity, strain rate, structural analysisAbstract
The contemporary kinematics of Azerbaijan is generated by the northward movement of Arabian plate relative to Eurasian one. This continuous «intervention» of Arabian plate into Eurasian one is the reason of the deformation of the Earth’s crust of the Caucasian block causing earthquakes which are registered throughout the territory. For the research of geodynamic processes and intraplate deformations it is applied the methods of global positioning (GPS). GPS-network in Azerbaijan was founded in 1998. For the period between 1998 and 2016, in many GPS-points, the measurements were done 3―6 times. The present paper deals with the research of structure distribution of GPS horizontal velocity field of intraplate zones (domains) for Azerbaijan. The comparative analysis of interrelation of seismic events with distribution of horizontal velocity vectors and deformation obtained from Azerbaijan GPS-network monitoring was done aiming to reveal those zones. Deformation distribution throughout the research area was calculated with the formula and approach of Shen with the use of horizontal components of GPS-velocities. Aiming to conduct the comparative analysis of GPS-velocities with seismicity, a map of distribution of earthquake numbers for Azerbaijan during the period of 2003―2017 with magnitude M ≥ 3 was utilized. As a result, the following domain zones were defined, such as the fold system of the Greater Caucasus, the fold system of the Lesser Caucasus, the Middle Kur, Talysh, Gusar-Shabran depression and Gobustan-Absheron zone. It was determined that the areas of high seismicity were located in the zones of high gradients of GPS-velocities, while the areas of high seismicity coincide predominantly with the areas of high velocity compression. However, Gobustan-Absheron zone with high velocity deformation is not characterized by high seismicity. Probably, the reason of this is due to the elasticity of geological environment.
References
Ismailzade, A.C., Kengerli, T.N., Korobanov, V.V., Mustafaev, G.V., Narimanov, A.A., & Rustamov, M.I. (2008). Geological map of Azerbaijan. Explanatory letter (in Russian).
Babaev, G.R., Akhmedova, E.V., & Kadirov, F.A. (2017). Analysis of the stress-strain state of the Caucasus region (Azerbaijan) by vectors of maximum horizontal stresses using the programs of the World Stress Map project. Geofizicheskiy zhurnal, 39(3), 26―39. http://dx.doi.org/10.24028/gzh.0203-3100.v39i3.2017.104026.
Kadirov, A.G., Agayeva, S.T., Aliev, F.A., Mamedov, S.K., Babayev, G.R., & Kadirov, F.A. (2009). GPS monitoring and seismicity of the collision zone of the Azerbaijan part of the Greater Caucasus. Izvestiya NAN Azerbaydzhana. Ser. nauki o Zemle, (3), 12―18 (in Russian).
Kadirov, F.A., Guliev, I.S., Feizullaev, A.A., Safarov, R.T., Mammadov, S.K., Babaev, G.R., & Rashidov, T.M. (2014). GPS based crustal deformations in Azerbaijan and their influence on seismicity and mud volcanism. Fizika Zemli, (6), 1―10 (in Russian).
Kadirov, F.A., Kadirov, A.G., Babayev, G.R., Agayeva, S.T., Mamedov, S.K., Garagezova, N.R., & Safarov, R.T. (2013). Seismic zoning of the southern slope of Greater Caucasus from the fractal parameters of the earthquakes, stress state and GPS velocities. Fizika Zemli, (4), 111―119 (in Russian).
Kadirov, F.A., & Safarov, R.T. (2013). Deformation of the earth's crust in Azerbaijan and adjacent territories according to GPS measurements. Izvestiya NAN Azerbaydzhana. Nauki o Zemle, (1), 47―55 (in Russian).
Kostyuk, A.D., Sycheva, N.A., Yunga, S.L., Bogomolov, L.M., & Yagi, Yu. (2010). Deformation of the Earth's crust of the Northern Tien Shan according to the sources of earthquakes and space geodesy. Fizika Zemli, (3), 52―65 (in Russian).
Yakubov, A.A., Alizade, A.A., & Zeynalov, M.M. (1971). Mud volcanoes of the Azerbaijan SSR. Baku: Elm, 25 p. (in Russian).
Babayev, G. R. (2009). Analysis of earthquake focal mechanisms for Greater and Lesser Caucasus applying the method of World Stress Map. In Catalogue of Azerbaijan Republican Seismological Center Azerbaijan National Academy of Science (pp. 67―74).
Herring, T.A. (2004). GLOBK: Global Kalman filter VLBI and GPS analysis program version 4.1, Massachusetts Institute of Technology. Cambridge. MA.
Kadirov, F., Floyd, M., Alizadeh, A., Guliev, I., Reilinger, R.E., Kuleli, S., King, R., & Toksoz, M. N. (2012). Kinematics of the eastern Caucasus near Baku, Azerbaijan. Natural Hazards, 63(2), 997―1006. https://doi.org/10.1007/s11069-012-0199-0.
Kadirov, F.A., Floyd, M., Reilinger, R., Alizadeh, A., Guliyev, I.S., Mammadov, S.G., & Safarov, R.T. (2015). Active Geodynamics of the Caucasus Region: Implications for Earthquake Hazards in Azerbaijan. Proceedings of Azerbaijan National Academy of Sciences. The Sciences of Earth, (3), 3―17.
Kadirov, F., Mammadov, S., Reilinger, R., & McClusky, S. (2008). Some new data on modern tectonic deformation and active faulting in Azerbaijan (according to global positioning system measurements). Proceedings ANAS, the sciences of Earth, (1), 82―88.
King, R. W., & Bock, Y. (2004). Documentation of the MIT GPS analysis software: GAMIT, Mass. Inst. of Technol., Cambridge.
McKenzie, D.P. (1972). Active tectonics of the Mediterranean region. Geophysical Journal International, 30(2), 109―185. https://doi.org/10.1111/j.1365-246X.1972.tb02351.x.
McQuarrie, N., Stock, J., Verdel, C., & Wernicke, B.P. (2003). Cenozoic evolution of Neotethys and implications for the causes of plate motions. Geophysical Research Letters, 30(20), 2036. doi: 10.1029/2003GL017992.
Masson, F., Djamour, Y., Van Gorp, S., Chery, J., Tatar, M., Tavakoli, F., Nankali, H., & Vernant, P. (2006). Extension in NW Iran driven by the motion of the South Caspian Basin. Earth and Planetary Science Letters, 252(1-2), 180―188. https://doi.org/10.1016/j.epsl.2006.09.038.
Nilforoushan, F., Masson, F., Vernant, P., Vigny, C., Martinod, J., Abbassi, M., Nankali, H., Hatzfeld, D., Bayer, R., Tavakoli, F., Ashtiani, A., Doerflinger, E., Daignières, M., Collard, P., & Chéry, J. (2003). GPS network monitors the Arabia Eurasia collision deformation in Iran. Journal of Geodesy, 77(7-8), 411―422. https://doi.org/10.1007/s00190-003-0326-5.
Reilinger, R., McClusky, S., Vernant, P., Lawrence, S., Ergintav, S., Cakmak, R., Ozener, H., Kadirov, F., Guliev, I., Stepanyan, R., Nadariya, M., Hahubia, G., Mahmoud, S., Sakr, K., ArRajehi, A., Paradissis, D., Al‐Aydrus, A., Prilepin, M., Guseva, T., Evren, E., Dmitrotsa, A., Filikov, S.V., Gomez, F., Al‐Ghazzi, R., & Karam, G. (2006). GPS constraints on continental deformation in the AfricaaArabiaaEurasia continental collision zone and implications for the dynamics of plate interactions. Journal of Geophysical Research. Solid Earth, 111(B5), BO5411. doi:10.1029/2005JB004051.
Safarov, R., & Ahmadova, E. (2018). Modern geodynamic conditions of Azerbaijan: based on GPS and seismic data. Geophysics News in Azerbaijan, (2), 47―53 (in Azerbaijani).
Shen, Z., Jackson, D.D., & Ge, B.X. (1996). Crustal deformation across and beyond the Los Angeles Basin from geodetic measuree ments. Journal of Geophysical Research. Solid Earth, 101(B12), 27957―27980. http://dx.doi.org/10.1029/96JB02544.
Sagiya, T., Miyazaki, S., & Tada, T. (2000). Continuous GPS array and present-day crustal deformation of Japan. Pure and applied Geophysics, 157(11-12), 2303―2322. https://doi.org/10.1007/PL00022507.
Telesca, L., Lovallo, M., Babayev, G., & Kadirov, F. (2013). Spectral and informational analysis of seismicity: An application to the 1996―2012 seismicity of the Northern Caucasus―Azerbaijan part of the greater Caucasus―Kopet Dag region. Physica-A Statistical Mechanics and Its Applications, 392, 6064―6078. doi:10.1016/j.physa.2013.07.031.
Yetirmishli, G.J., & Kazimova, S.E. (2017). Types of tectonic movements of seismogenic regions of Azerbaijan by mechanisms of earthquake foci. In Geological-geophysical studies of the deep structure of the Caucasus: geology and geophysics of Caucasus (pp. 20―25). Vladikavkaz.
Yetirmishli, G.J., Mammadli, T.Y., & Kazimova, S.E. (2013) Features of seismicity of Azerbaijan part of the greater Caucasus. Journal of Georgian Geophysical Society, Physics of Solid Earth, 16, 55―60.
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