This marine sampling and geophysical survey was carried out by George Wimpey & Co for British Geological Survey (BGS), the survey took place from the 17 August to 28 September 1967 in the northeast Irish Sea on board the M.V. Olna Firth. The purpose was to collect data for investigation of the British Continental Shelf. Sea floor data were collected using Echo sounder and Transit sonar (transits between sample stations). Sample data were collected using rockdrill, vibracorer, gravity corer and shipek grab. This survey was carried out for Project 1967/1 in conjunction with geophysical survey 1967/1. These data are archived by BGS Technical details of the survey are contained in BGS report WB/MC/68/1. See also IGS report 69/8