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Studia Geophysica et Geodaetica

, Volume 41, Issue 1, pp 15–28 | Cite as

Verification of the Litho-spheric Structure along Profile Uppsala-Prague Using Surface Wave Dispersion

  • O. Novotný
  • M. Grad
  • C.-E. Lund
  • L. Urban
Article

Abstract

Experimental dispersion curves of Rayleigh and Love waves along the Uppsala-Prague profile have been determined using records of several Italian earthquakes. To interpret the dispersion data, results of previous geophysical investigations in this region were first analyzed. Seven blocks of the crust and upper mantle were distinguished along the profile on the basis of deep seismic sounding and other seismic data. Layered models were proposed for these blocks. Computation of Rayleigh and Love waves shows a large differentiation of theoretical dispersion curves for the northern (Precambrian) and southern (Palaeozoic) part of the profile. A laterally inhomogeneous model for theUppsala - Prague profile, composed of the seven blocks, satisfies the surface wave data for the profile. Moreover, a mean layered model for the whole profile has also been proposed.

lithospheric structure dispersion surface waves 

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References

  1. Babich, V.M., Chikhachev, B.A. and Yanovskaya, T.B., 1976: Poverkhnostnye volny v vertikal'noneodnorodnom uprugom poluprostranstve so slaboj gorizontal'noj neodnorodnost'yu. (Surface waves in a vertically-inhomogeneous elastic half-space with weak horizontal inhomogeneities). Izv. AN SSSR, Fiz. Zemli, No. 4: 24–31 (in Russian).Google Scholar
  2. Båth, M., 1979: Introduction to Seismology. Birkhäuser Verlag, Basel, 428 pp.Google Scholar
  3. Beránek, B., Mayerová, M., Zounková, M., Guterch, A., Materzok, R. and Pajchel, J., 1973: Results of deep seismic soundings along international profile VII in Czechoslovakia and Poland. Studia geoph. et geod., 17, 205–217.Google Scholar
  4. Čermák, F., 1990: Spektrální a spektrálně-časové metody výpočtu disperze povrchových vln. (Spectral and Time-Frequency Methods of Computing the Dispersion of Surface Waves). Faculty of Mathematics and Physics, Prague, 77 pp. (theses, not published).Google Scholar
  5. Der, Z.A. and Landisman, M., 1972: Theory of errors, resolution, and separation of unknown variables in inverse problems, with application to the mantle and the crust in Southern Africa and Scandinavia. Geophys. J. R. astr. Soc., 27, 137–178.Google Scholar
  6. Grad, M. and Luosto, U., 1987: Seismic models of the crust of the Baltic shield along the SVEKA profile in Finland. Annales Geophysicae, 5B(6), 639–650.Google Scholar
  7. Grad, M., Guterch, A. and Lund, C.-E., 1991: Seismic models of the lower lithosphere beneath the southern Baltic Sea, between Sweden and Poland. Tectonophysics, 189, 219–227.Google Scholar
  8. Guggisberg, B., 1986. Eine zweidimensionale refraktionsseismische Interpretation der Geschwindigkeits-Tiefen-Struktur des oberen Erdmantels unter dem Fennoskandischen Schild (Projekt FENNOLORA). Diss. ETH Nr. 7945, Zürich, 199 pp. (in German).Google Scholar
  9. Guterch, A., Grad, M., Materzok, R. and Toporkiewicz, S., 1983: Structure of the Earth's crust of the Permian basin in Poland. Acta Geophysica Polonica, 31, 121–138.Google Scholar
  10. Guterch, A., Grad, M., Materzok, R., Perchuc, E. and Toporkiewicz, S., 1986a: Wyniki sejsmicznych badan' glebokiej struktury skorupy ziemskiej obszaru Polski, 1969–1985. (Results of seismic crustal studies in Poland, 1969–1985). Publ. Inst. Geophys. Pol. Acad. Sci., A-17,192, 84 pp. (in Polish).Google Scholar
  11. Guterch, A., Grad, M., Materzok, R. and Perchuc, E., 1986b: Deep structure of the Earth's crust in the contact zone of the Palaeozoic and Precambrian platforms in Poland (Tornquist-Teisseyre zone). Tectonophysics, 128, 251–279.Google Scholar
  12. Guterch, A., Grad, M., Janik, T., Materzok, R., Luosto, U., Yliniemi, J., Lück, E., Schulze, A. and Förste, K., 1994: Crustal structure of the transition zone between Precambrian and Variscan Europe from new seismic data along LT-7 profile (NW Poland and eastern Germany). C. R. Acad. Sci. Paris, t. 319, série II, 1489–1496.Google Scholar
  13. Hauser, F. and Stangl, R., 1990: The structure of the crust and the lithosphere in Fennoscandia derived from a joint interpretation of P-and S-wave data of the Fennolora refraction seismic profile. In: R. Freeman and St. Mueller (Editors), Proceedings of the Sixth Workshop on the European Geotraverse (EGT) Project, Data Compilation and Synoptic Interpretation. European Science Foundation, Strasbourg, pp. 71–92.Google Scholar
  14. Keilis-Borok, V.I. (ed.), 1989: Seismic Surface Waves in a Laterally Inhomogeneous Earth. Kluwer, Dordrecht, 289 pp.Google Scholar
  15. Kirnos, D.P., Moskvina, A.G. and Shebalin, N.V., 1961: O vybore racional'noj metodiki opredeleniya postoyannykh elektrodinamicheskikh sejsmografov. (On a rational methodology of determining the constants of electrodynamic seismographs). Trudy Instituta Fiziki Zemli, No. 19 (186), Sejsmicheskie pribory. Izd. AN SSSR, Moscow (in Russian).Google Scholar
  16. Kulhánek, O., 1988: Seismological Department Uppsala Progress Report 1983–1987. Seismol. Dept., Uppsala, Report 1–88, 51 pp.Google Scholar
  17. Lomax, A. and Snieder, R., 1995: The contrast in upper mantle shear-wave velocity between the East European Platform and tectonic Europe obtained with genetic algorithm inversion of Rayleigh-wave group dispersion. Geophys. J. Int., 123, 169–182.Google Scholar
  18. Lund, C.-E., 1990: Summary of the results from the Fennolora project. In: R. Freeman and St. Mueller (Editors), Proceedings of the Sixth Workshop on the European Geotraverse (EGT) Project, Data Compilation and Synoptic Interpretation. European Science Foundation, Strasbourg, pp. 65–70.Google Scholar
  19. Lund, C.-E., Grad, M. and Guterch, A., 1991: Seismic structure of the Earth's crust and lower lithosphere beneath the southern part of the Baltic Sea. Publ. Inst. Geophys. Pol. Acad. Sci., A-19(236), 61–83.Google Scholar
  20. Luosto, U., 1990: Seismic data from the northern segment of the EGT and from nearby profiles. In: R. Freeman and St. Mueller (Editors), Proceedings of the Sixth Workshop on the European Geotraverse (EGT) Project, Data Compilation and Synoptic Interpretation. European Science Foundation, Strasbourg, pp. 53–63.Google Scholar
  21. Noponen, I., 1966: Surface wave phase velocities in Finland. Bull. Seism. Soc. Am., 56, 1093–1104.Google Scholar
  22. Novotný, O., 1983: Theoretical dispersion curves for the seismic profile Kašperské Hory (Czechoslovakia) — Ksiaz (Poland). Studia geoph et geod., 27, 157–163.Google Scholar
  23. Novotný, O., Proskuryakova, T.A. and Voronina, E.V., 1980: Comparison of the results of surface wave investigations and deep seismic soundings along the international profile VII. In: Proc. of the 17th Assembly of the ESC. Budapest, pp. 325–328.Google Scholar
  24. Novotný, O., Proskuryakova, T.A. and Voronina, E.V., 1981: Sravnenie rezul'tatov glubinnogo sejsmicheskogo zondirovaniya i izucheniya poverkhnostnykh voln v rajone VII mezhdunarodnogo profilya. (Comparison of the results of deep seismic soundings and surface wave investigations in the region of the VII-th international profile). Studia geoph. et geod., 25, 160–166.Google Scholar
  25. Novotný, O., Proskuryakova, T.A. and Shilov, A.V., 1995: Dispersion of Rayleigh waves along the Prague-Warsaw profile. Studia geoph. et geod., 39, 138–147.Google Scholar
  26. Plešinger, A., Neunhöfer, H. and Wielandt, E., 1991: Crust and upper mantle structure of the Bohemian Massif from the dispersion of seismic surface waves. Studia geoph. et geod., 35, 184–195.Google Scholar
  27. Proskuryakova, T.A., Novotný, O. and Voronina, E.V., 1981: Izuchenie stroeniya Zemli metodom poverkhnostnykh voln (Tsentral'naya Evropa). (Studies of the Earth's Structure by Surface Wave Method (Central Europe)). Nauka, Moscow, 96 pp. (in Russian).Google Scholar
  28. Savarensky, E., 1975: Seismic Waves. Mir Publishers, Moscow, 352 pp.Google Scholar
  29. Thomas, P.D., 1965: Geodetic arc lengths on the reference ellipsoid to second-order terms in the flattening. J. Geophys. Res., 70, 3331–3340.Google Scholar
  30. Tobyáš, V., Teikari, P. and Vesanen, E., 1977: Magnification of WWSS long-period seismographs. Geophysica, 14, 251–276.Google Scholar
  31. Vogel, A. and Lund, C., 1970: Combined interpretation of the trans-Scandinavian seismic profile. Section 2–3. Report No. 4, Univ. of Uppsala, Dept. of Solid Earth Physics, 22 pp.Google Scholar
  32. Wielandt, E., Sigg, A., Plešinger, A. and Horálek, J., 1987: Deep structure of the Bohemian Massiff from phase velocities of Rayleigh and Love waves. Studia geoph. et geod., 31, 1–7.Google Scholar
  33. Zielhuis, A. and Nolet, G., 1994a: Deep seismic expression of an ancient plate boundary in Europe. Science, 265, 79–81.Google Scholar
  34. Zielhuis, A. and Nolet, G., 1994b: Shear-wave velocity variations in the upper mantle beneath cental Europe. Geophys. J. Int., 117, 695–715.Google Scholar

Copyright information

© StudiaGeo s.r.o. 1997

Authors and Affiliations

  • O. Novotný
    • 1
  • M. Grad
    • 2
  • C.-E. Lund
    • 3
  • L. Urban
    • 1
  1. 1.Department of Geophysics, Faculty of Mathematics and PhysicsCharles UniversityPragueCzech Republic.
  2. 2.Institute of GeophysicsUniversity of WarsawPoland
  3. 3.Department of Solid Earth PhysicsUniversity of UppsalaSweden

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