HR: 08:45h
AN: S21C-04    [PDF]
TI: A New Generation of Large Seismic Refraction Experiments in Central Europe (1997-2003)
AU: * Guterch, A
EM: adgip@igf.edu.pl
AF: Polish Academy of Sciences, Institute of Geophysics Ks. Janusza 64, Warsaw, 01-452 Poland
AU: Grad, M
EM: mgrad@mimuw.edu.pl
AF: University of Warsaw, Institute of Geophysics Pastura 7, Warsaw, 02-093 Poland
AU: Spicak, A
EM: als@ig.cas.cz
AF: Academy of Sciences of the Czech Republic, Geophysical Institute Bocni II/1401, Prague 4, 142 00 Czech Republic
AU: Brueckl, E
EM: ebrueckl@luna.tuwien.ac.at
AF: Vienna University of Technology, Institute of Geodesy and Geophysics Gusshausstrasse 27-29, Vienna, A-1040 Austria
AU: Hegedus, E
EM: hegedus@elgi.hu
AF: Eotvos Lor nd Geophysical Institute, Kolumbusz u. 17-23, Budapest, 1039 Hungary
AU: Keller, G R
EM: keller@utep.edu
AF: University of Texas at El Paso, Department of Geological Sciences, El Paso, TX 79968 United States
AU: Thybo, H
EM: ht@seis.geol.ku.dk
AF: University of Copenhagen, Geological Institute Oster Voldgade 10, Copenhagen, 1350 Denmark
AB: Beginning in 1997, Central Europe has been covered by an unprecedented network of seismic refraction experiments. These experiments (POLONAISE'97, CELEBRATION 2000, ALP 2002, SUDETES 2003) have only been possible due a massive international cooperative effort. The total length of all profiles is about 19,000 km, and over 300 explosive sources were employed. The result is a network of seismic refraction profiles that extends along the Trans-European Suture Zone region of Poland and the Bohemian massif, Pannonian basin, trough the Carpathians and Alps to the Adriatic Sea and the Dinarides. As reflected in structures within these areas, Central Europe has experienced a complex tectonic history that includes the Caledonian, Variscan, and Alpine orogenies. The related TESZ region is a broad zone of deformation that extends across Europe from British Isles to the Black Sea region that formed as Europe was assembled from a complex collage of terranes during the late Palaeozoic. For example, the Bohemian massif is mostly located in the Czech Republic and is a large, complex terrane whose origin can be traced to northern Gondwana (Africa). These terranes were accreted along the margin of Baltica that was formed during the break-up of Rodinia. The tectonic evolution of this region shares many attributes with the Appalachian/Ouachita origin and is certainly of global important to studies in terrane tectonics and continental evolution. In southern Poland, several structural blocks are located adjacent to Baltica and were probably transported laterally along it similar to the Cenozoic movement of terranes along the western margin of North America. The younger Carpathian arc and Pannonian back-arc basin were also targeted by these experiments. Thickness of the crust in the area of investigations changes from 22-25 km in the Pannonian basin to about 55 km in the Trans-European Suture Zone in SE Poland. Together, these experiments are providing an unprecedented 3-D image of the evolution and assembly of a continent. Experiment Working Group Members: K. Aric, S. Azevedo, I. Asudeh, M. Behm, A.A. Belinsky, T. Bodoky, R. Brinkmann, M. Broz, E. Brueckl, W. Chwatal, R. Clowes, W. Czuba, T. Fancsik, B. Forkmann, M. Fort, E. Gaczynski, H. Gebrande, H. Geissler, A. Gosar, M. Grad, H. Grassi, R. Greschke, A. Guterch, Z. Hajnal, S. Harder,E. Hegedus, A. Hemmann, S. Hock, V. Hoeck, P. Hrubcova, T. Janik, G. Jentzsch, P. Joergensen, G. Kaip, G.R. Keller, F. Kohlbeck, K. Komminaho, M. Korn, O. Korousova, S.L. Kostiuchenko, D. Kracke, C.-E. Lund, U. Luosto, M. Majdazski, M. Malinowski, K.C. Miller, A.F. Morozov, G. Motuza, V. Nasedkin, E.-M. Rumpfhuber, Ch. Schmid, A. Schulze, K. Schuster, O. Selvi, C. Snelson, A. Spicak, P. Sroda, F. Sumanovac, E. Tacasc, H. Thybo, T. Tiira, C. Tomek, J. Vozar, F. Weber, M. Wilde-Pi¢rko, J. Yliniemi, A. Zelazniewicz
DE: 7205 Continental crust (1242)
DE: 7218 Lithosphere and upper mantle
DE: 8110 Continental tectonics--general (0905)
SC: Seismology [S]
MN: 2003 Fall Meeting