Abstract
Two well-known methodologies have been used, for the first time, to derive a detailed and reliable lithospheric model of the Adriatic Plate, consistent with the thus far available data: non linear inversion of phase and group velocity dispersion curve obtained from surface-wave tomography, and body-waves tomography. To carry out the body-waves tomography, about 16500 P phases and 2000 S phases from 1219 seismic events, 73 seismic stations located at the border of the investigated region and a vertically heterogeneous starting model derived from the nonlinear inversion of average dispersion measurements, are used. The 3-D velocity model of the upper lithosphere, obtained from the combined analysis, shows a rather clear structural anomaly on the northeastern side, where the crust is thicker, and an uprising of the top of the lid in the northern part of the plate with a very thin, if any, transition zone from crust to mantle.
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Acknowledgement We are grateful to Bruno Alessandrini and Luisa Filippi (National Seismic Service, Rome – Italy) for providing the computer code SIMULPS and for their very useful advice on the local earthquakes tomography method. This work has been supported by the Italian project MURST-COFIN prot. 2001048324-001 (2001).
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Venisti, N., Calcagnile, G., Pontevivo, A. et al. Tomographic Study of the Adriatic Plate. Pure appl. geophys. 162, 311–329 (2005). https://doi.org/10.1007/s00024-004-2602-6
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DOI: https://doi.org/10.1007/s00024-004-2602-6