British Geological Survey (BGS) Geophysical Survey 1971/5: NW Scotland (26/06/1971 to 28/07/1971)

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