RRS Shackleton S3/80, leg 4

Cruise summary report

Cruise Info. 
Ship name (ship code)RRS Shackleton (74SF)
Cruise identifierS3/80, leg 4
Cruise period1980-06-06 — 1980-06-17
Port of departureGreat Yarmouth, United Kingdom
Port of returnGreat Yarmouth, United Kingdom
ObjectivesTo deliniate the area of Jurrasic rocks and other major boundaries to enable them to be tied into previous surveys made for a cross-Channel power cable from Dungeness to Equihen. The survey also formed a basis for the Dungness- Boulonge sheet of the IGS 1:250 000 map series and the data used to help determine a bottom sampling programme to be carried out by the Institue of Geological Sciences (IGS), Marine Geology Unit later in the season.
Chief scientistMichael C Tully (Institute of Geological Sciences, Edinburgh)
Cruise reportRRS Shackleton S3/80, leg 4 cruise report shackleton3_80leg2.pdf (0.35 MB) 
Ocean/sea areas 
GeneralEnglish Channel
Track chartsRRS Shackleton S3/80, leg 4 cruise track — trk2472.html
Geology and geophysics 
Single-beam echosoundingQuantity: track kilometres = 1109
Long/short range side scan sonarQuantity: track kilometres = 587
Description: "UDI"dual channel side scan system;556nm Transit Sonar
Single channel seismic reflectionQuantity: 394
Description: format 0:Seismic analogue paper record
Seismic refractionQuantity: track kilometres = 1030
Description: Sparker;317nm Airgun
Gravity measurementsQuantity: track kilometres = 1109
Magnetic measurementsQuantity: 317