Cruise inventory

Gardline Locater 1/76

Cruise summary report

Cruise Info. 
Ship name (ship code)Gardline Locater (74VM)
Cruise identifier1/76
Cruise period1976-06-09 — 1976-07-02
StatusCompleted
Port of departureLowestoft, United Kingdom
Port of returnPlymouth, United Kingdom
PurposeResearch
ObjectivesThe aims of this section of the programme were twofold. The first objective was to survey seven proposed borehole sites with sparker and pinger. These sites were to the north-west of Scilly and formed part of the Sealab drilling programme. The second objective was a regional marine geophysical survey of the 1:250000 Scilly sheet, which would include the use of gravity meter, magnetometer, sparker, pinger and sonar. In order to achieve this a BP single scan sonar was placed on board. The Institute's Klein dual scan sonar was on board as back-up.
Cruise reportGardline Locater 1/76 cruise report gardline_locator1_76.pdf — access key 'C' (11.89 MB) 
Ocean/sea areas 
GeneralEnglish Channel
Bay of Biscay
Measurements 
Geology and geophysics 
Single-beam echosoundingQuantity: track kilometres = 8323
Long/short range side scan sonarQuantity: track kilometres = 4087
Description: format 0 is seismic analogue paper record
Single channel seismic reflectionQuantity: track kilometres = 5804
Description: format 0 is seismic analogue paper record
Single channel seismic reflectionQuantity: track kilometres = 4818.904
Description: seismic reflection pinger.Format 0 is seismic analogue paper record
Gravity measurementsQuantity: track kilometres = 7435.78
Magnetic measurementsQuantity: track kilometres = 7115.384