RRS John Murray JM12/77_Leg1
Cruise summary report
| Cruise Info. | |
| Ship name (ship code) | RRS John Murray (74MJ) |
| Cruise identifier | JM12/77_Leg1 |
| Cruise period | 1977-09-27 — 1977-10-10 |
| Status | Completed |
| Port of departure | Barry, United Kingdom |
| Port of return | Aberdeen, United Kingdom |
| Purpose | Research |
| Objectives | Devoted to natural radioactivity and neutron activation surveys in the Western English Channel. |
| Chief scientist | J M Miller (Institute of Geological Sciences, Keyworth) |
| Cruise report |  (0.11 MB) |
| Ocean/sea areas | |
| General | Bay of Biscay |
| Track charts |  |
| Measurements | |
| Geology and geophysics | |
| Core - rock | Quantity: number of cores = 6 |
| Multi-beam echosounding | Quantity: track kilometres = 507 |
| Long/short range side scan sonar | Quantity: track kilometres = 507 Description: MS47 |
| Single channel seismic reflection | Quantity: track kilometres = 507 Description: Pinger |
| Seismic refraction | Quantity: track kilometres = 507 Description: Sparker |
| Other geological/geophysical measurements | Quantity: track kilometres = 507 Description: Seabed gamma spectrometry |
| Other geological/geophysical measurements | Quantity: track kilometres = 507 Description: Seabed neutron activation,(first sea trial of towed seabed neuton act.spec) |
