PL EN


Preferencje help
Widoczny [Schowaj] Abstrakt
Liczba wyników
Tytuł artykułu

A simple smoothed velocity model of the uppermost Earth’s crust derived from joint inversion of Pg and Sg waves

Wybrane pełne teksty z tego czasopisma
Identyfikatory
Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
The paper presents some results of seismic experiments carried out on the territory of northern Moravia and Silesia, roughly delimited by the coordinates 16°E-19°E and 49°N-51°N. The experiments were aimed at compiling a velocity model of the uppermost Earth's crust using the database of arrival times of Pg and Sg waves recorded at a fairly large number of seismic stations, which enabled us to produce a simple 1D-layered velocity model of the region. The velocity model was computed using the traditional tomographic iterative process composed of consecutive solutions of linear equations. Based on the analysis of velocity distribution, it was found that the velocities of Pg and Sg waves increase from about 5.9 and 3.3 km/s at the surface, to about 6.1 and 3.5 km/s at a depth of 11 km, respectively.
Czasopismo
Rocznik
Strony
487--497
Opis fizyczny
Bibliogr. 14 poz.
Twórcy
autor
autor
autor
Bibliografia
  • Brož, M. (2000), Detection of the origin time and seismic ground motion of quarry blasts, Acta Montana, Ser. A, 16, 118, 17-24.
  • Grad, M., A. Špičák, G.R. Keller, A. Guterch, M. Brož, E. Hegedüs, and Working Group (2003), Special contributions: SUDETES 2003 Seismic Experiment, Stud. Geophys. Geod. 47, 3, 681-689, DOI: 10.1023/A:1024732206210.
  • Guterch, A., M. Grad, G.R. Keller, K. Posgay, J. Vozár, A. Špičák, E. Brückl, Z. Hajnal, H. Thybo, O. Selvi, and CELEBRATION 2000 Experimental Team (2003), Special contribution: CELEBRATION 2000 Seismic Experiment, Stud. Geophys. Geod. 47, 3, 659-669, DOI: 10.1023/A:1024728005301.
  • Holub, K., and J. Rušajová (2002), Seismic observations in the course of experiment CELEBRATION 2000 and their preliminary assessment. In: Z. Kaláb (ed.), Laboratory and Field Investigation in Seismology and Engineering Geophysics, Ostrava, Czech Republic, 16-17 Apr. 2002, Inst. of Geonics AS CR, Ostrava, 92-104 (in Czech).
  • Holub, K., J. Knejzlík, J. Rušajová, and B. Růžek (2004), Large-hole blasting test in the Jakubčovice nad Odrou quarry, Trans. VŠB – Tech. Univ. Ostrava, Civil Eng. Ser. 4, 2, 125-133.
  • Holub, K., J. Knejzlík, and J. Rušajová (2005), Seismological observations at discrete sites during the seismic experiment SUDETES 2003, Trans. VŠB – Tech. Univ. Ostrava, Civil Eng. Ser. 5, 2, 45-52.
  • Holub, K., J. Málek, O. Novotný, J. Rušajová, and J. Valenta, (2006), Mean vertically inhomogeneous models of the uppermost crust along seismic profiles in the Ohře rift and Moravo-Silesian region, Trans. VŠB – Tech. Univ. Ostrava, Civil Eng. Ser. 6, 2, 125-131.
  • Holub, K., Z. Kaláb, J. Knejzlík, and J. Rušajová (2009), Contribution of the Institute of Geonics of the AS CR Ostrava to seismological monitoring in Silesia and Northern Moravia, Acta Geodyn. Geomater. 6, 3, 391-398.
  • Růžek, B., V. Vavryčuk, P. Hrubcová, J. Zedník (2003), Crustal anisotropy in the Bohemian Massif, Czech Republic: Observations based on Central European lithospheric experiment based on refraction (CELEBRATION) 2000, J. Geophys. Res. 108, B8, 2392, DOI: 10.1029/ 2002JB002242.
  • Růžek B., J. Zedník, P. Jedlička, K. Holub, J. Rušajová, and O. Novotný (2004), Location of the “calibration” blast Jakubčovice and of two local tectonic events in the Ostrava region, Trans. VŠB – Tech. Univ. Ostrava, Civil Eng. Ser. 4, 2, 255-260.
  • Růžek, B., P. Hrubcová, M. Novotný, A. Špičák, and O. Karousová (2007), Inversion of travel times obtained during active seismic refraction experiments CELEBRATION 2000, ALP 2002 and SUDETES 2003, Stud. Geophys. Geod. 51, 1, 141-164, DOI: 10.1007/s11200-007-0007-6.
  • Spencer, C. and D. Gubbins (1980), Travel-time inversion for simultaneous earthquake location and velocity structure determination in laterally varying media, Geophys. J. Roy. Astron. Soc. 63, 1, 95-116, DOI: 10.1111/j.1365-246X.1980.tb02612.x.
  • Špaček, P., Z. Sýkorová, J. Pazdírková, J. Švancara, and J. Havíř (2006), Presentday seismicity of the south-eastern Elbe Fault System (NE Bohemian Massif), Stud. Geophys. Geod. 50, 2, 351-358, DOI: 10.1007/s11200-006-0014-z.
  • Um, J., and C. Thurber (1987), A fast algorithm for two-point seismic ray tracing, Bull. Seismol. Soc. Am. 77, 3, 972-986.
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-article-BSL4-0013-0018
JavaScript jest wyłączony w Twojej przeglądarce internetowej. Włącz go, a następnie odśwież stronę, aby móc w pełni z niej korzystać.