British Geological Survey (BGS) Geophysical and Sampling Survey 1977/CH/Consub: Submersible trials: Haig Fras (14/Sep/1977 to 22/Sep/1977)

This British Geological Survey (BGS) marine geophysical and sampling survey took place in September 1977 in the Haig Fras area on board the RRS Challenger. The purpose of the project was to carry our trials of unmanned submersible Consub. Geophysical data were collected using Echo sounder; Precision Depth recorder (PDR) and Sidescan sonar. Seabed samples were collected using unmanned submersible (CONSUB); gravity corer; rock gravity corer; rock dredge and shipek grab.