GNGTS 2014 - Atti del 33° Convegno Nazionale

Evans J.R., Eberhart-Phillips D. and Thurber C.H.; 1994: User’s manual for SIMULPS12 for imaging V p and V p /V s : A derivative of the “Thurber” tomographic inversion SIMUL3 for local earthquakes and explosions . U.S.G.S., Open File Report, 94-931, 101 pp. Gentili, S. and Bressan, G.; 2008: The partitioning of radiated energy and the largest aftershock of seismic sequences occurred in the northeastern Italy and western Slovenia. Journal of. Seismology 12 , 343–354. Gentili S. and Franceschina, G.; 2011: High frequency attenuation of shear waves in the southeastern Alps and northern Dinarides. Geophys. J. Int., 185 , 1393-1416 . Gentili S. and Gentile F.; 2013: Attenuation tomography of Friuli Venezia Giulia Italian region. Gruppo Nazionale di Geofisica della Terra Solida, 32 Convegno Nazionale, Trieste (Italy), 19-21 November 2013, 69-75. Goldberg, D. E. Genetic Algorithms in Search, Optimization, and Machine Learning , Addison-Wesley Publishing Company, INC.,1989, ISBN 0-201-15767-5. Hough S.E. and Anderson J.G.; 1988: High frequency spectra observed at Anza, California: implications for Q structure . Bull. seism. Soc. Am., 78 , 692–707. Mantovani E., Albarello D.,Tamburelli C. and Babbucci D.; 1996: Evolution of the Tyrrhenian basin and surrounding regions as a result of the Africa-Eurasia convergence . J. Geodyn., 21 , 35–72. Michelini A. and McEvilly T. V.; 1991: Seismological studies at Parkfield. Simultaneous inversion for velocity structure and hypocenters using cubic B-splines parametrization . ����� ������ ���� ���� Bull. seism. Soc. Am., 81 , 2, 524-552. Lapanje, A., Rman, N. and Rajver, D.; 2011: Characteristics of geothermal potential, current utilization and its future (challenges) in Slovenia. RENEXPO, Budapest, 6 May 2011. Schurr, B., Asch, G., Rietbrock, A., Trumbull, R. B. & Haberland, C.; 2003: Complex patterns of fluid and melt transport in the central Andean subduction zone revealed by attenuation tomography. Earth and Planetary Science Letters, 215 , 105-119. Toomey, D. R. and Foulger, G. R.; 1989: Tomographic Inversion of Local Earthquake Data From the Hengill- Grensdalur Central Volcano Complex. J. Geophys. Res., 94 , 17,497-17,510. Venturini C.; 1991 : Cinematica neogenico-quaternaria del Sudalpino orientale (settore friulano). Studi Geol. Camerti, Camerino, Vol. Spec., 109-116. Zelt, C. A; 1998: Lateral velocity resolution from three-dimensional seismic refraction data . �������� �� ����� Geophys. J. Int., 135 , 1101-1112. The funny appeal of unreliable geodynamic models (Tyrrhenian-Apennine syst E. Mantovani, M. Viti, D. Babbucci, C. Tamburelli Dipartimento di Scienze Fisiche, della Terra e dell’Ambiente, Università di Siena, Italy Introduction. The huge amount of information now available about the recent deformation pattern of the central Mediterranean region allows the recognition of a geodynamic model which can plausibly account for the complex spatio-temporal distribution of major tectonic events (Mantovani et al. , 2009, 2014; Viti et al. , 2011). In spite of this, in literature most attention is surprisingly devoted to other geodynamic hypotheses which can hardly be reconciled with major evidence in the study area. In this note, we discuss about such problem, by synthetically describing the major implications of the most cited geodynamic model and pointing out the main difficulties that it encounters in explaining observed first - order evidence in the study area. Gravitational sinking of subducted lithosphere. The most intriguing aspect of the recent tectonic evolution of the Mediterranean region is the fact that a zone of plate convergence has been characterized by the formation of a number of extensional basins, such as the Tyrrhenian one. To explain such peculiar tectonics, several hypotheses have been advanced. The one that has so far attracted most attention provides that the occurrence of crustal stretching in the Tyrrhenian basin and the evolution of the surrounding Apennine system can be explained as effects of the gravitational sinking of subducted lithosphere (slab pull), as originally proposed by Malinverno and Ryan (1986). GNGTS 2014 S essione 1.2 151