Planned maintenance — 18th January 2018 12:00 to 22nd January 2018 09:00 [more]

Cruise inventory

Sperus 7/77 Leg 9

Cruise summary report

Cruise Info. 
Ship name (ship code)Sperus (74TJ)
Cruise identifier7/77 Leg 9
Cruise period1977-07-29 — 1977-08-10
Port of departureLerwick, United Kingdom
Port of returnLerwick, United Kingdom
ObjectivesGeological and geophysical mapping of the UK Continental Shelf.

Priority to obtian regional coverage of area 2 west of Shetland. On passage to Lerwick at the end of the leg, 3 short seismic lines were run. Good gravity data was obtained despite the data logger being non-operational. A number of lines were run close inshore.
Chief scientistAlan S Mould (Institute of Geological Sciences, Edinburgh)
Cruise reportSperus 7/77 Leg 9 cruise report sperus7_77.pdf — access key 'C' (18.20 MB) 
Ocean/sea areas 
GeneralNorth Sea
Track chartsSperus 7/77 Leg 9 cruise track — sperus7_77_geology.pdf (0.39 MB)  Sperus 7/77 Leg 9 cruise track — sperus7_77_lines1-10.pdf (0.21 MB)  Sperus 7/77 Leg 9 cruise track — sperus7_77_lines12-108.pdf (0.70 MB) 
Geology and geophysics 
Single-beam echosoundingDescription: regional geophysical survey
Long/short range side scan sonarDescription: regional geophysical survey
Single channel seismic reflectionDescription: pinger, regional geophysical survey
Multichannel seismic reflectionDescription: wide angle reflection.Format: seismic graphic recorder. Regional geophysical survey
Gravity measurementsDescription: regional geophysical survey
Magnetic measurementsDescription: regional geophysical survey