We employed high resolution Multichannel Seismic using a GI-GUN (in the 105+105 c.i. Harmonic configuration) pneumatic source by SODERA/SSI, powered by a 2500 L/Min electrically driven air compressor by BAUER. The seismic data were collected by a MOD.29500 TELEDYNE 48 channel streamer and digitized and recorded on DAT tapes by a GEOMETRICS's STRATAVISOR seismograph in the SEG-D 8105/Revision D format. The group interval was of 12.5m for a total active length of 600m. The 140m tow leader and two 50 m stretch sections made up the streamer to a total length of 840m. The seismic sources were fired by ISMAR's gun-control equipment [Masini and Ligi (1995)]. Shot distances at the speed of 4.2-4.7 Kn was set by the NAVPRO software every 25m, thus achieving a coverage of 600%. The depth of the source was at 3m, whilst the streamer was kept between 8m and 12m depth.