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The placement of the Trans-European Suture Zone on the Romanian territory by electromagnetic arguments

Abstract

Initially, two 2D models are presented in order to emphasize the possible placement of the Trans-European Suture in the rooted zone of the Eastern Carpathians’ Flysch Nappes System. Then, a conclusive review of the distribution of the main geoelectrical properties on this area is accomplished, pointing out the accuracy of the image reflecting the two types of contrasting basement, without neglecting the complex aspect related to the Carpathian Arc Bend. By correlating the two maps, at the lower crust and basement levels, elaborated by electromagnetic data, new information concerning the particularities of this distinctive tectonic element are brought to light. In addition to it, the two extreme top limits on the map of the lower crust (brittle/ductile transition zone) are revealed—the highest one (30 km) eastwards of the Pannonian Basin, and the deepest one (about 50 km) in the Vrancea area.

References

  1. Giese, U., G. Katzung, and U. Kramm, The TransEuropean Suture Zone in NE-Germany-Implications and constraints from structural studies, provenance analysis and isotope dating, Ann. Geophys., Suppl. I, 16, C105, EGS, Nice, 1998, (Abstract).

  2. Musacchio, G. and W. D. Mooney, Composition, structure and evolution of Precambrian crust: evidence from Vp/Vs ratios, Ann. Geophys., Suppl. I, 16, C108, 1998, (Abstract).

  3. Korja, T. and S.-E. Hjelt, Electromagnetic studies in the Fennoscandian Shield-electrical conductivity of Precambrian crust, Phys. Earth Planet. Inter., 81, 107–138, 1993.

  4. Pharaoh, T. and TESZ colleagues, Trans-European Suture Zone: Phanerozoic Accretion and the Evolution of Contrasting Continental Lithosphere, EUROPROBE 1996-Lithosphere Dynamics: Origin and Evolution of Continents, 41–54, Europrobe Secretariate, Uppsala University, 1996.

  5. Pinna, E., A. Soare, D. Stănică, and M. Stănică, Carpathian conductivity anomaly and its relation to deep substratum structure, Acta Geodaet. Geophys. Mont. Hung., 27, 35–45, 1992.

  6. Săndulescu, M., Overview on Romanian Geology, Rom. Jour. of Tectonics and Regional Geology, Suppl. 2, 75, 3–15, Bucharest, 1994.

  7. Stănnică, D., M. Stănică, and M. Visarion, The structure of the crust and upper mantle in Romania as deduced from magnetotelluric data, Rev. Roum. Geol. Geophys. Geogr., Ser. Geophys., 30, 25–35, Bucharest, 1986.

  8. Stănică, D. and M. Stănică, The investigation of the deep structure of the Moesian Platform (Romania) by means of the electromagnetic induction methods, Gerlands Beitr. Geophysik, 98(2), 155–163, Leipzig, 1989.

  9. Stănică, D. and M. Stănică, An electrical resistivity lithospheric model in the Carpathian Orogen from Romania, Phys. Earth Planet. Inter., 81, 99–105, 1993.

  10. Stănică, M. and D. Stănică, 2D modelling of the geoelectrical structure in the area of the deepfocus Vrancea earthquakes, in Monograph. of Southern Carpathians. Reports on Geodesy, pp. 153–203, Warsaw, 1998.

  11. Stănică, M., Approach of the tectonical active zones (Vrancea area) by magnetotelluric soundings, Ann. Geophys. Suppl. I, 16, C281, Nice, 1998, (Abstract).

  12. Wannamaker, P. E., J. A. Stodt, and L. Rijo, A stable finite element solution for two-dimensional magnetotelluric modeling, Geophys. J. R. astr. Soc., 88, 277–296, 1987.

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Correspondence to Maria Stănică.

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Keywords

  • Orogen
  • Lower Crust
  • Pannonian Basin
  • East European Craton
  • Conductivity Anomaly