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New Geologic and Tectonic Insight in the Isonzo Plain through Seismic ImagingNormal access

Authors: F. Accaino, G. Boehm, M. Busetti, L. Baradello and A. Affatato
Event name: Near Surface Geoscience 2015 - 21st European Meeting of Environmental and Engineering Geophysics
Session: Applied Geophysics for Seismic Hazard I
Publication date: 06 September 2015
DOI: 10.3997/2214-4609.201413741
Organisations: EAGE
Language: English
Info: Extended abstract, PDF ( 840.26Kb )
Price: € 20

A seismic line acquired near Gorizia (NE of Italy) and long about 3.3 km was reprocessed and interpreted with the aim to investigate the buried geological structures and the tectonic of the area. The seismic profile well images the structures buried by the Quaternary alluvial deposits. In particular are well imaged the top of the flysch at about 100 m in depth and a dipping reflector from South to North that can be related to the limestone. The flysch outcrops in the south part of the seismic line in correspondence of the Farra hill., and is affected by compressional and transpressional tectonic deformation. Also tomographic inversion of refracted and diving waves was performed, allowing us to define the velocities of the alluvial deposits and of the flysh. Also the structural setting of the embricated thrusts are well imaged by the final velocity field obtained by tomographic inversion.

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