Reflection seismic, magnetic, gravimetric survey of the Scotia Plate, Antarctica (Summer 1989-90, 1990-91)

This research has been carried out in the context of the Nation Research Program in Antarctic (PNRA), coordinated by the Italian ENEA, under the auspices of the Italian Ministry for Scientific and Technological Research.

The parameters for the different campaign are: Summer 1989-90: in cooperation with the United States Geological Survey (USGS), the survey interested four different areas: the Scotia Plate, the Antarctic Peninsula, the South Pacific Ocean and the Ross Sea. The first part of the survey has been dedicated to the Scotia Plate area where 5 profiles have been collected for a total of about 1,850 km, by using the following parameters: Coverage 3000% Record Length 14 sec Sample Rate 4 ms Shot Interval 50 m Streamer Length 3000 m Streamer Depth 12 m Number of Groups 120 Group Interval 25 m Air-Guns: - Total Volume 45.16 1 - Pressure 140 bar - Depth 6 m December 1990, January, February and March 1991: The survey interested mainly three different areas: the South Pacific Ocean, the Ross Sea and the Scotia Plate.