Geophysical Survey 1971/5: NW Scotland (26/06/1971 to 28/07/1971)
CP2 Regional Sea Boundaries: Atlantic North-West Approaches, Rockall Trough and Faeroe/Shetland Channel, Minches & Western Scotland, Scottish Continental Shelf, Offshore 1:250k: Caithness, Darwin, Foula, Great Glen, Lewis, Orkney, Rona, Sula Sgeir, Sutherland, Offshore 1:500k: Faroe Shetland Basin, North Rockall Basin, SeaVoX Sub-Ocean: INNER SEAS OFF THE WEST COAST OF SCOTLAND, NORTHEAST ATLANTIC OCEAN (40W)
Report: Tully, MC. 1971. Cruise Report for MV Researcher. Regional Geophysical Surveys off NW Scotland. MGU Project 71/05. (IGS Report No 21) Positioning: Decca Hifix and Main Chain no further information Echo sounding: ORE sub-bottom profiler was used as an echo sounder Seismic systems: Airgun system: Bolt airgun with Geomechanique hydrophone Sparker system: EG&G sparker system with 263c hydrophone streamer and 254 recorder. Most lines run at 1kJ. Gravitymeter: LaCoste and Romberg gravity meter. Magnetometer: Barringer magnetometer
For more detailed information on the acquisition equipment and data collection techniques, operational standards, data processing methods and quality control procedures used on this survey see the Report of Survey/Cruise Report and associated documentation where available. The information available may vary depending on the age of the survey. Data are checked and loaded to the BGS Coastal and Marine data management system following BGS marine data management procedures.
Airgun/Sleeve Gun, Gravimeter, Magnetometer, Pinger, Sparker
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