Cruise inventory

RRS John Murray JM5/72 Leg2

Cruise summary report

Cruise Info. 
Ship name (ship code)RRS John Murray (74MJ)
Cruise identifierJM5/72 Leg2
Cruise period1972-04-01 — 1972-04-12
StatusCompleted
Port of departureOban, United Kingdom
Port of returnBarry, United Kingdom
PurposeResearch
ObjectivesIntensive geological and geophysical survey, including 5 seismic refraction lines, of the Hebridean continental margin and adjacent Rockall Trough of 57° - 58degN. Coring and dredging carried out and magnetometer, sparker and echo-sounder and side-scan records obtained. Seismic equipment was also tested.
Chief scientistM Beney (Research Vessel Services)
Cruise reportRRS John Murray JM5/72 Leg2 cruise report john_murray5_72.pdf — access key 'C' (0.39 MB) 
Ocean/sea areas 
GeneralInner Seas off the West Coast of Scotland
North East Atlantic Ocean (limit 40W)
SpecificHebrides and Rockall Torugh
Track chartsRRS John Murray JM5/72 Leg2 cruise track — john_murray5_72trk.pdf (00 MB) 
Measurements 
Physical oceanography 
Surface drifters/drifting buoysQuantity: number of recoveries = 2
Description: dahn buoy and sonobuoy
Surface drifters/drifting buoysQuantity: number of deployments = 2
Description: dahn buoy and sonobuoy
Biology and fisheries 
Gear researchDescription: maintenance and testing of sonobuoys, Plessey current meter and bottom camera
Geology and geophysics 
DredgeQuantity: number of stations = 3
Description: sediment samples
GrabQuantity: number of stations = 1
Description: sediment samples
Core - soft bottomQuantity: number of stations = 8
Description: gravity
Single channel seismic reflectionDescription: seismic lines: airgun, sparker, magnetometer
Gravity measurementsDescription: seismic lines: airgun, sparker, magnetometer
Magnetic measurementsDescription: seismic lines: airgun, sparker, magnetometer