RRS Discovery D74B
Cruise summary report
| Cruise Info. | |
| Ship name (ship code) | RRS Discovery (74E3) |
| Cruise identifier | D74B |
| Cruise period | 1975-09-15 — 1975-09-26 |
| Status | Completed |
| Port of departure | Bantry, Ireland |
| Port of return | Brest, France |
| Purpose | Research |
| Objectives | The principal objective of this cruise was to occupy a number of closely spaced seismic profiles across the outer shelf, slope and rise between the Porcupine Seabight and Brittany. These profiles were to complement profiles previously taken during Discovery Cruises 47 and 60 and 24 channel seismic profiles to be occupied by the Institut Francias du Petrole in August. |
| Chief scientist | David G Roberts (Institute of Oceanographic Sciences Wormley Laboratory) |
| Project | Seismic Reflection Profiling Across The Continental Margin in the SW Approaches |
| Cruise report |  (8.53 MB) (3.26 MB) |
| Ocean/sea areas | |
| General | Bay of Biscay North East Atlantic Ocean (limit 40W) |
| Track charts |  |
| Measurements | |
| Physical oceanography | |
| Surface measurements underway (T,S) | Description: T only |
| Bathythermograph | |
| Currents measured from ship drift | |
| Meteorology | |
| Routine standard measurements | |
| Geology and geophysics | |
| Dredge | |
| Single-beam echosounding | |
| Long/short range side scan sonar | |
| Single channel seismic reflection | |
| Magnetic measurements | |
| Magnetic measurements |
