Cruise summary report
|Ship name (ship code)||Sperus (74TJ)|
|Cruise period||1979-07-09 — 1979-07-23|
|Port of departure||Newcastle, United Kingdom|
|Port of return||Lerwick, 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 scientist||A Dobinson (Institute of Geological Sciences, Edinburgh)|
|Cruise report||(9.09 MB)|
|Geology and geophysics|
|Single-beam echosounding||Quantity: number of surveys = 18|
|Long/short range side scan sonar||Quantity: number of surveys = 8|
Description: format 0 is seismic analogue paper record
|Seismic refraction||Quantity: track kilometres = 3153.956|
Description: sparker.1013nm airgun.1359nm boomer.Format 0 is seismic analogue paper record
|Gravity measurements||Quantity: track kilometres = 1900|
Description: data collected, S40 and S75 gravity meters
|Magnetic measurements||Quantity: number of surveys = 16|
|Other geological/geophysical measurements||Quantity: track kilometres = 416|
Description: survey along a pipeline using the Huntec deep tow boomer