Department of Trade and Industry (DTI) Sampling Survey 1977_Zephyr: English Channel (July - October 1977)

This sampling (drilling) survey has been carried out by, contractors for Department of Energy, the survey took place from July to October 1977 in the SW Approaches and western English Channel on board the semisubmersible drilling rig Zephyr I. The purpose was to drill four stratigraphical test boreholes, Institute of Geological Sciences (IGS) now British Geological Survey (BGS) staff carried out well-site geologist duties. Borehole data were collected using drilling techniques. These data are archived by BGS. Details of the survey are contained in IGS Annual Report 1974.