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

Cruise inventory

Sperus 14/79

Cruise summary report

Cruise Info. 
Ship name (ship code)Sperus (74TJ)
Cruise identifier14/79
Cruise period1979-07-09 — 1979-07-23
Port of departureNewcastle, United Kingdom
Port of returnLerwick, 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.

18 surveyed lines
Short sand bank survey off Peterhead
416km were surveyed along the pipeline with the Huntec deep tow boomer.
6 regional geophysical lines were run in the northern half of the Halibut Bank sheet.
1900km of data was collected
S40 and S75 gravity meters
Magnetometer run on lines 3-18
Sesimic equipment: sparker, watergun or airgun, deep towed boomer and pinger.
Chief scientistA Dobinson (Institute of Geological Sciences, Edinburgh)
Cruise reportSperus 14/79 cruise report sperus14and15_79.pdf — access key 'C' (9.09 MB) 
Ocean/sea areas 
GeneralNorth Sea
SpecificNorth Sea
Track chartsSperus 14/79 cruise track — trk2338.html Sperus 14/79 cruise track — trk2338a.html
Geology and geophysics 
Single-beam echosoundingQuantity: number of surveys = 18
Long/short range side scan sonarQuantity: number of surveys = 8
Description: format 0 is seismic analogue paper record
Seismic refractionQuantity: track kilometres = 3153.956
Description: sparker.1013nm airgun.1359nm boomer.Format 0 is seismic analogue paper record
Gravity measurementsQuantity: track kilometres = 1900
Description: data collected, S40 and S75 gravity meters
Magnetic measurementsQuantity: number of surveys = 16
Other geological/geophysical measurementsQuantity: track kilometres = 416
Description: survey along a pipeline using the Huntec deep tow boomer