RRS Discovery D111B
Cruise summary report
| Cruise Info. | |
| Ship name (ship code) | RRS Discovery (74E3) |
| Cruise identifier | D111B |
| Cruise period | 1980-07-08 — 1980-07-30 |
| Status | Completed |
| Port of departure | Halifax, Canada |
| Port of return | St. John's, Canada |
| Purpose | Research |
| Objectives | The principal objective of the cruise was to undertake a comparative study of the continental margin around the Grand Banks with that off Western Europe by means of an examination of the structural and sedimentary processes that have shaped the margin off eastern Canada. En route to the area, it was intended to make a further GLORIA traverse of the Nova Scotia margin thus making a mosaic of the GLORIA sonographs obtained from R.V. Starella during October 1979. |
| Chief scientist | David G Roberts (Institute of Oceanographic Sciences Wormley Laboratory) |
| Cruise report |  (0.53 MB) |
| Ocean/sea areas | |
| General | North West Atlantic Ocean (limit 40W) |
| Specific | E & N.E. Grand Banks |
| Track charts |  |
| Measurements | |
| Physical oceanography | |
| Other physical oceanographic measurements | Quantity: number of profiles = 1 Description: sound velocity stations at 43 45 N, 57 23 W |
| Meteorology | |
| Routine standard measurements | Description: Met. Office Selected Ship.Also 6 minutes values recorded on m/s and digitally on magnetic tape. |
| Geology and geophysics | |
| Single-beam echosounding | Quantity: track kilometres = 3519 |
| Multi-beam echosounding | Quantity: track kilometres = 4763 |
| Long/short range side scan sonar | Quantity: track kilometres = 4518 |
| Single channel seismic reflection | Quantity: track kilometres = 1778 |
| Seismic refraction | Quantity: number of deployments = 130 Description: Sonobuoys (13 Stations). |
| Gravity measurements | |
| Magnetic measurements |
