1996/97 ANTARCTICA PENINSULA R.V. “OGS-EXPLORA” CRUISE IT97AP SEDANO II Programme(SEdiment Drift of the ANtarctic Offshore programme)

• Main Author: Istituto Nazionale Di Oceanografia E Di Geofisica Sperimentale Http//Www.Ogs.Trieste.It
• Format: Article in Journal/Newspaper
• Language: English
• Published: The Antarctic Seismic Data Library System (SDLS) 2001
• Subjects: Antarctic; The Antarctic; Antarctic Peninsula; Austral; Pacific; Antarc*; Antarctica
• Online Access: https://dx.doi.org/10.6092/sdls.26949f70-cba2-11e8-ad51-52540085a32b; https://sdls.ogs.trieste.it/cache/index.jsp?doi=10.6092/SDLS.26949f70-cba2-11e8-ad51-52540085a32b

During austral summer1996/97 Istituto Nazionale di Oceanografia e di Geofisica Sperimentale (OGS), on board the research vessel OGS-Explora, conducted marine geological and geophysical surveys along the Antarctic Peninsula. The SEDANO II (SEdiment Drifts of the ANtarctic Offshore) programme was the continuation of SEDANO I , acquired in 1995 (SDLS-47). This interdiciplinary programme included geology, geophysics and oceanography for the study of the sedimentary sequences of the continental rise of the Pacific Margin in the Antarctic Peninsula. During this programme 712 km of 60-fold multichannel seismic reflection (MCS) data, 8 second records, 2 ms sample rate and 286 km of single channel seismic reflection (SCS) data, 3 seconds, 1 ms sample rate, were recorded on a SERCEL SN 358 DMX system. The source consisted of an airgun array with a total volume of 60 litres, fired every 25 meters into a 3000 m cable consisting of 120 hydrophone groups towed at an average depth of 12 m for the MCS data. The SCS data were acquired every 12,5 meters into a 18 m cable consisting of 8 hydrophone groups towed at an average depth of 3 m, except line IT97AP242H acquired every 25 m, 8 seconds and 2 ms sample rate. A GPS + TRANSIT satellite receiver system was used for navigation.