GNGTS 2016 - Atti del 35° Convegno Nazionale

210 GNGTS 2016 S essione 1.2 Herring T.A., Floyd M.A., King R.W and McClusky S.C.; 2015b: Global Kalman filter VLBI and GPS analysis program, GLOBK Reference Manual, Release 10.6. Department of Earth, Atmospheric and Planetary Sciences, Massachusset Institute of Technology, Cambridge MA. Mantovani E., Viti M., Babbucci D. and Tamburelli C; 2009: A review on the driving mechanism of the Tyrrhenian- Apennines system: implications for the present seismotectonic setting in the Central-Northern Apennines. Tectonophysics, 476 , 22-40. Mantovani, E., Viti, M., Babbucci, D., Tamburelli, C., Cenni, N., Baglione, M. and D’Intinosante, V.; 2015a: Present Tectonic Setting and Spatio-Temporal Distribution of Seismicity in the Apennine Belt. International Journal of Geosciences, 6 , 429-454. http://dx.doi.org/10.4236/ijg.2015.64034 . Mantovani, E., Viti, M., Cenni, N., Babbucci, D., Tamburelli, C., Baglione, M. and D’Intinosante, V.; 2015b: S eismotectonics and Present Seismic Hazard in the Tuscany-Romagna-Marche-Umbria Apennines (Italy) . Journal of Geodynamics, 89 , 1-14. doi: 10.1016/j.jog.2015.05.001. Serpelloni, E., C. Faccenna, G. Spada, D. Dong, and S. D. P. Williams (2013), V ertical GPS ground motion rates in the Euro-Mediterranean region: New evidence of velocity gradients at different spatial scales along the Nubia- Eurasia plate boundary, J. Geophys. Res. Solid Earth, 118 , doi:10.1002/2013JB010102. Teatini, P., Tosi, L., Strozzi, T., Carbognin, L., Cecconi, G., Rosselli, R., Libardo, S.; 2012: Resolving land subsidence within the Venice Lagoon by persistent scatterer SAR interferometry . Phys. Chem. Earth, 40/41 , 72–77. Viti, M., Mantovani, E., Babbucci, D., Tamburelli, C., Cenni, N., Baglione, M. and D’Intinosante, V.; 2015a: Belt-Parallel Shortening in the Northern Apennines and Seismotectonic Implications. International Journal of Geosciences, 6 , 938-961. doi: 10.4236/ijg.2015.68075 Viti, M., Mantovani, E., Babbucci, D., Cenni, N. and Tamburelli, C.; 2015b: Where the Next Strong Earthquake in the Italian Peninsula? �������� �� � ������������� �������� Insights by a Deterministic Approach . Bollettino di Geofisica Teorica ed Applicata, 56 , 2, 329-350. Wessel, P., Smith, W.H.F., Scharroo, R., Luis, J.F., and Wobbe, F.; 2013: Generic Mapping Tools: Improved version released, EOS Trans. ���� AGU, 94 , 409-410. The Tethyan roots of southeastern Sicily (Italy): An interdisciplinary insight from new 3D seismic tomographies and petrophysical inferences E. Giampiccolo 1 , A. Brancato 1 , F.C. Manuella 2 , S. Carbone 2 , S. Gresta 2 , V. Scribano 2 1 Istituto Nazionale di Geofisica e Vulcanologia – Osservatorio Etneo, Catania, Italy 2 Dip. Scienze Biologiche, Geologiche e Ambientali, Sezione di Scienze della Terra, Università di Catania, Italy A number of geological and geophysical investigations were carried out to determine the structure and composition of lithosphere of the Hyblean Plateau (south-eastern Sicily) (e.g., Finetti et al. , 2005 and references therein). Detailed datasets were gathered for the Hyblean upper crust, consisting of a Meso-Cenozoic sedimentary-volcanic sequence (Bianchi et al. , 1987). However, no direct information is known for the buried Permo-Triassic basement of this region (Bianchi et al. , 1987; Finetti et al. , 2005), which is believed the uplifted emerged portion of the Pelagian block, as the northern offshoot of the Africa continental plate (Burollet et al. , 1978, Ben-Avraham et al., 1990; Lentini et al. , 1994), extending from Tunisia to Sicily. On the other hand, a 30-year study of deep-seated xenoliths embedded in tuff-breccia deposits of Hyblean diatremes (e.g., Scribano 1987; Scribano et al. , 2006a,b), Late Tortonian-Lower Messinian in age (Suiting and Schmincke, 2010), led Manuella et al. (2013, 2014, 2015) to propose a new lithospheric model for southeastern Sicily, and neighboring areas. This model, which is based on an interdisciplinary study of petrologic and geochemical data from Hyblean xenoliths and volcanic rocks, with recent geophysical datasets (Giampiccolo et al. , 2003; Brancato, 2005), is consistent with the hypothesis proposed by Scribano et al. (2006a,b) and the palaeogeographic model developed by Vai (1994, 2003) and Catalano et al. (1996), attesting that Hyblean Permo- Triassic basement, is a remnant of the slow-spreading Permian Tethys Ocean (Manuella et al. , 2015a) as a part of the Oman-Iraq-Levantine-Sicily-Texas oceanic seaway.