For more detailed information on the acquisition equipment and data collection techniques, operational standards, data processing methods and quality control procedures used on this survey see the Report of Survey/Cruise Report and associated documentation where available. The information available may vary depending on the age of the survey. Data are checked and loaded to the BGS Coastal and Marine data management system following BGS marine data management procedures.
unrestricted use, copyright acknowledgement
Geophysical Survey 1976/1: SW Approaches and English Channel (09/06/1976 to 02/08/1976)
Echo Sounder, Gravimeter, Magnetometer, Pinger, Sidescan Sonar, Sparker
Available under the Open Government Licence subject to the following acknowledgement accompanying the reproduced British Geological Survey materials "Contains British Geological Survey materials ©UKRI [year]"
CP2 Regional Sea Boundaries: Eastern Channel, Western Channel & Celtic Sea, Offshore 1:250k: Caen, Cockburn Bank, Dungeness-Boulogne, Guernsey, Haig Fras, Labadie Bank, Lands End, Little Sole Bank, Lizard, Oussant, Parsons Bank, Portland, Rouen, Scilly, Wight, SeaVoX Sub-Ocean: CELTIC SEA, ENGLISH CHANNEL
Report: Deegan, SE. 1976. Cruise Report on Project 76/01. SW Approaches and English Channel. (IGS Report No 83) Navigation: Magnavox integrated satellite navigation/doppler sonar system, back-up control was from the Decca Navigator Mk 12. Equipment: Atlas Deso 10 and Edig 10 echo sounder, Askania GSS-3 gravity meter, Edo Pinger, EG&G 9 candle spark array, Klein Dual Scan Sonar System and BP Sonar System. No information on magnetometer. The first objective was to survey seven proposed borehole sites with sparker and pinger. These sites were to the north-west of Scilly. During leg 2 it became necessary to survey additional sites to the south-west of the Lizard. The second objective was a regional marine geophysical survey of the 1:250000 Scilly sheet, which would include the use of gravity meter, magnetometer, sparker, pinger and sonar.