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

Cruise inventory

Sperus 14/79 Leg 3

Cruise summary report

Cruise Info. 
Ship name (ship code)Sperus (74TJ)
Cruise identifier14/79 Leg 3
Cruise period1979-08-06 — 1979-08-14
Port of departureLerwick, United Kingdom
Port of returnFraserburgh, United Kingdom

Project 14/79 was designed to provide regional geophysical coverage of the Foula, of the IGS 1:250,000 map series, on a N-S, E-W grid of lines at approximately 15km and 9km spacing. A number of gravity lines were also to be run over the Orkney sheet to complete gravity coverage in that area. In addition, some regional geophysical lines were to be surveyed on the Halibut Bank sheet after a study of the FLAGS pipeline route with the Huntec deep tow boomer.

Finishing gravity coverage of the Orkney sheet and to start work in th Bosies Bank area,
1335km of gravity, magnetic and pinger profiles were run.
Chief scientistMichael C Tully (Institute of Geological Sciences, Edinburgh)
Cruise reportSperus 14/79 Leg 3 cruise report sperus14and15_79.pdf — access key 'C' (9.09 MB) 
Ocean/sea areas 
GeneralNorth Sea
SpecificNorth Sea
Track chartsSperus 14/79 Leg 3 cruise track — trk2338.html
Geology and geophysics 
Single-beam echosoundingQuantity: track kilometres = 1335
Seismic refractionQuantity: track kilometres = 1335
Description: pinger
Gravity measurementsQuantity: track kilometres = 1335
Magnetic measurementsQuantity: track kilometres = 1335