GNGTS 2014 - Atti del 33° Convegno Nazionale

GNGTS 2014 S essione 3.1 27 units have been related to main tectonic pulses. Mass flow deposits that flowed into the basin directly from the contiguous narrow shelf and steep slope have also been recognized. Another important structure is represented by the Salerno Valley, a half-graben basin filled by three main seismic units, corresponding to Quaternary marine and continental sediments. These units grade laterally into the chaotic deposits related to the “Flysch del Cilento” Auct. (Bonardi et al. , 1988). The deepest seismic unit has been interpreted as Meso-Cenozoic carbonates due to the poor penetration of the seismic signal. The tectonic setting of the valley is controlled by the Capri regional fault, downthrowing the Meso-Cenozoic carbonates from the Capri structural high under the basin itself. The last investigated structure is represented by the Volturno Basin, hosting the northern sector of the Campania Plain and the surrounding offshore and showing a sedimentary filling consisting of four main marine and deltaic seismic sequences, alternating with volcaniclastic levels and overlying deep seismic units, related to Miocene flysch deposits (sands and shales) and Meso-Cenozoic carbonates. New seismo-stratigraphic data have evidenced that the Volturno Basin represents a half-graben, characterized by blocks down thrown along normal faults, involving the top of the Miocene acoustic basement. References Aiello G., Budillon F., Cristofalo G., de Alte���� ��� �� ����� ��� ������� ��� �������� ��� ������ ��� ������ ��� riis G., De Lauro M., Ferraro L., Marsella E., ��� ������ ��� Pelosi N., Sacchi M., Tonielli R.; 2001: Marine geology and morpho-bathymetry in the Bay of Naples. In: Faranda F.M., Guglielmo L., Spezie G. (Eds.) Structures and Processes of the Mediterranean Ecosystems , pp. 1-8, Springer, Italy. Aiello G., Angelino A., Marsella E., Pelosi N., Ruggieri S., Siniscalchi A. ������ (2005) Buried volcanic structures in the Gulf of Naples (Southern Tyrrhenian sea, Italy) resulting from high resolution magnetic survey and seismic profiling. Annals of Geophysics, 48 (6) , 1-15. Aiello G., Marsella E., Cicchella A.G., Di Fiore V.; 2011: New insights �� ����������������� ��� ������� ������������ on morpho-structures and seismic stratigraphy along the Campania continental margin (Southern Italy) based on deep multichannel seismic profiles. Rend. Lincei, 22 , 349-373. Barattolo F. and Pugliese A.; 1987: Il Mesozoico dell’Isola di Capri. Quaderni Accademia Pontaniana, 8 , 1-36, 66 tavv. Barberi F., Innocenti F., Lirer L., Munno R., Pescatore T., Santacroce R.; (1978): The Campanian Ignimbrite: a major prehistoric eruption in the Neapolitain area (Italy). Bull. Volcanol., 41 (1) , 1-22. D’Argenio B., Pescatore T., Scandone P. (1973) Schema geologico dell’Appennino meridionale (Campania e Lucania). Atti del Convegno “Moderne vedute sulla geologia dell’Appennino”, Accademia Nazionale dei Lincei, Quaderno 183 , 49-72. Faccenna C., Mattei M., Funiciello R., Jolivet L. (1996) Styles of back-arc extension in the Central Mediterranean. Terra Nova, 9 , 126-130. Fusi N. (1996) Structural settings of the carbonatic basement and its relationship with magma uprising in the Gulf of Naples (southern Italy). Annali di Geofisica, 39 (3) , 493-509. Fusi N., Mirabile L., Camerlenghi A., Ranieri G. (1991) Marine geophysical survey of the Gulf of Naples (Italy): relationships between submarine volcanic activity and sedimentation. Memorie della Società Geologica Italiana, 47 , 95-114. Ippolito F., Ortolani F., Russo M. (1973) Struttura marginale tirrenica dell’Appennino campano: reinterpretazione di dati di antiche ricerche di idrocarburi. Memorie della Società Geologica Italiana, 12 , 227-250. Malinverno A. and Ryan W.B.F. (1986) Extension in the Tyrrhenian sea and shortening in the Apennines as a result of arc migration driven by sinking of the lithosphere. Tectonics, 5 , 227-245. Mariani M. and Prato R. (1988) I bacini neogenici del margine tirrenico: approccio sismico-stratigrafico. Memorie della Società Geologica Italiana, 41 , 519-531. Milia A. and Torrente M.M. (1999) Tectonics and stratigraphic architecture of a peri-Tyrrhenian half-graben (Bay of Naples, Italy). Tectonophysics, 315 , 301-318. Milia A., Mirabile L., Torrente M.M., Dvorak J.J.; 1998: Volcanism offshore Vesuvius volcano (Italy): implications for hazard ����������� evaluation. Bull. Volcanol., 59 , 404-413. Mostardini F. and Merlini S.; 1986: Appennino centro-meridionale: sezioni geologiche e proposta di modello strutturale. Mem. Soc. Geol. Ital., 35 , 177-202. Parotto M. and Praturlon A. (1975) Geological summary of central Apennines. �������� �� �� ������� ������������ Quaderni de La Ricerca Scientifica, CNR, 90 , 257-311. Walsh J.J. and Watterson J. (1988) Analysis of the relationship between displacements and dimensions of faults. Journal of Structural Geology, 10 , 239-247.