RRS John Murray JM5/72 Leg 1
Cruise summary report
Cruise Info. | |
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Ship name (ship code) | RRS John Murray (74MJ) |
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Cruise identifier | JM5/72 Leg 1 |
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Cruise period | 1972-03-18 — 1972-03-27 |
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Status | Completed |
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Port of departure | Barry, United Kingdom |
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Port of return | Oban, United Kingdom |
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Purpose | Research |
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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. |
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Chief scientist | T Fitton (University College London, Department of Geology) |
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Cruise report | (0.39 MB) |
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Ocean/sea areas | |
General | Inner Seas off the West Coast of Scotland North East Atlantic Ocean (limit 40W) |
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Specific | Hebrides and Rockall Torugh |
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Track charts | (0.06 MB) |
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Measurements | |
Geology and geophysics | |
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Dredge | Quantity: number of stations = 10 |
Grab | Quantity: number of stations = 7 Description: Shipek grabs |
Core - soft bottom | Quantity: number of stations = 13 Description: including gravity cores |
Single channel seismic reflection | Description: sparker, hydrophone array, magnetometer traverses |
Seismic refraction | Quantity: number of track lines = 5 Description: test expendable sonobouys |