SWATH BATHYMETRY AND GEOPHYSICAL SURVEY OF THE TYRRHENIAN SEA



REPORT ON BATHYMETRIC, MAGNETIC AND GRAVIMETRIC INVESTIGATIONS
DURING CRUISES TIR96 AND TIR99

G.Bortoluzzi, G.Carrara, P.Fabretti,
F.Gamberi, M.Marani, D.Penitenti, G.Stanghellini, M.Tonani, N.Zitellini,
C.Bonazzi, S.Lippolis, M.Musacchio (IGM)
A.Daviddi, G.Diroma, A.Ferrarini, A.Leotta (IIM)
D.Gilod, B.Nikaronenkov (MSU)
V.Efimov, S.Erofeev (GIN)

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IGM-CNR Cataloging-In-Publication data TECHNICAL REPORT IGM-CNR N.52
TIR96 and TIR99 Cruise Technical Report / by G.Bortoluzzi, G.Carrara, P.Fabretti,
F.Gamberi, M.Marani, D.Penitenti, M.Tonani, N.Zitellini,
C.Bonazzi, S.Lippolis, M.Musacchio, G.Stanghellini (IGM),
A.Daviddi, G.Diroma, A.Ferrarini, A.Leotta (IIM),
D.Gilod, B.Nikaronenkov (MSU), V.Efimov, S.Erofeev (GIN)

Includes bibliographical reference and index.
1. Tyrrhenian Sea 2. Ionian Sea 2. Swath bathymetry 3. Geophysics

Abstract - A summary of the ship-board results of two swath bathymetry and geophysical surveys in the Tyrrhenian and Ionian seas is presented. The research cruises were done within the framework of the National Research Council and "Dip.Servizi Tecnici Naz. - Pres.Consiglio" funded project ``Lithosphere Formation in mid-oceanic ridges and back- arc basins : Geological Studies in the Equatorial Atlantic and Tyrrhenian Sea''. Apart from the detailed makeup of the Tyrrhenian seamounts and surrounding margins, with important implications that concern the rifting and opening of the Tyrrhenian Sea, the surveys have substantially increased our understanding of the basin-wide sedimentary dynamics through the combined use of the bathymetric and sonar data. The same combination, in addition to the magnetic data has also allowed the recognition of several new areas of recent submarine volcanic activity.

Sommario - Vengono presentati le metodologie e l'insieme dei risultati ottenuti durante due campagne di batimetria e geofisica nel Tirreno e nello Ionio, finanziate dal CNR e dal Dipartimento dei Servizi Tecnici Nazionali - Presidenza del consiglio. Al di la' del dettagliato rilievo morfologico dei monti e dei margini Tirrenici, con importanti implicazioni sulla comprensione dei processi tettonici, si e' ottenuto anche un sostanziale aumento della comprensione dei processi sedimentari a scala di bacino con l'uso combinato di dati batimetrici e sonar. Assieme ai dati di magnetometria si potra' ottenere anche una maggiore definizione delle aree di magmatismo e vulcanesimo recente.

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Copyright ©1999 by IGM-CNR - Via Gobetti 101 40129 Bologna, Italy.

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