RRS John Murray JM5/72 Leg2
Cruise summary report
Cruise Info. | |
---|
Ship name (ship code) | RRS John Murray (74MJ) |
---|
Cruise identifier | JM5/72 Leg2 |
---|
Cruise period | 1972-04-01 — 1972-04-12 |
---|
Status | Completed |
---|
Port of departure | Oban, United Kingdom |
---|
Port of return | Barry, United Kingdom |
---|
Purpose | Research |
---|
Objectives | Intensive 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 scientist | M Beney (Research Vessel Services) |
---|
Cruise report | (0.39 MB) |
---|
Ocean/sea areas | |
General | Inner Seas off the West Coast of Scotland North East Atlantic Ocean (limit 40W) |
---|
Specific | Hebrides and Rockall Torugh |
---|
Track charts | (0.06 MB) |
---|
Measurements | |
Physical oceanography | |
---|
Surface drifters/drifting buoys | Quantity: number of deployments = 2 Description: dahn buoy and sonobuoy |
Surface drifters/drifting buoys | Quantity: number of recoveries = 2 Description: dahn buoy and sonobuoy |
Biology and fisheries | |
---|
Gear research | Description: maintenance and testing of sonobuoys, Plessey current meter and bottom camera |
Geology and geophysics | |
---|
Dredge | Quantity: number of stations = 3 Description: sediment samples |
Grab | Quantity: number of stations = 1 Description: sediment samples |
Core - soft bottom | Quantity: number of stations = 8 Description: gravity |
Single channel seismic reflection | Description: seismic lines: airgun, sparker, magnetometer |
Gravity measurements | Description: seismic lines: airgun, sparker, magnetometer |
Magnetic measurements | Description: seismic lines: airgun, sparker, magnetometer |