Articles | Volume 6, issue 2
https://doi.org/10.5194/se-6-669-2015
https://doi.org/10.5194/se-6-669-2015
Research article
 | 
10 Jun 2015
Research article |  | 10 Jun 2015

Subduction or delamination beneath the Apennines? Evidence from regional tomography

I. Koulakov, A. Jakovlev, I. Zabelina, F. Roure, S. Cloetingh, S. El Khrepy, and N. Al-Arifi

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Cited articles

Alessandrini, B., Beranzoli, L., Mele, F. M.: 3-D crustal P-wave velocity tomography of the Italian region using local and regional seismicity data, Ann. Geophys., 38, 189-211, 1995.
Amato, A., Alessandrini, B., Cimini, G., Frepoli, A., Selvaggi, G.: Active and remnant subducted slabs beneath Italy: evidence from seismic tomography, Ann. Geofis., 36, 201–214, 1993.
Bijwaard, H. and Spakman, W.: Nonlinear global P-wave tomography by iterated linearised inversion, Geophys. J. Int., 141, 71–82, 2000.
Bijwaard, H., Spakman, W., Engdahl, and E. R.: Closing the gap between regional and global travel time tomography, J. Geophys. Res.-Sol. Ea., 103, 30055–30078, 1998.
Boschi, L., Ekström, G., and Kustowski, B.: Multiple resolution surface wave tomography: the Mediterranean basin, Geophys. J. Int., 157, 293–304, 2004.
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Short summary
A new regional seismic tomography model of the upper mantle beneath Italy is presented. Here we identify a high-velocity anomaly, identifiable as a long, narrow sausage-shaped body with a steeply dipping part down to a depth of 400km and then expanding horizontally over ~400km. We propose that it could be made up of infra continental lithospheric mantle of Adria, which is progressively delaminated, whereas its overlying crust becomes progressively accreted into the Apenninic tectonic wedge.