British Geological Survey (BGS) Geophysical Survey 1970/2: Cardigan Bay (18/04/1970 to 14/05/1970)
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Report: Day, GA. 1970. Cruise Report for MV Surveyor. MGU Project 70/02. (BGS Report No WB/MG/70/6). Positioning: Main Chain Decca with towed log. Echo Sounding: MS 32 Sonar Systems: No information...
