RRS Shackleton S3/80 Leg 2
Cruise summary report
| Cruise Info. | |
| Ship name (ship code) | RRS Shackleton (74SF) |
| Cruise identifier | S3/80 Leg 2 |
| Cruise period | 1980-05-07 — 1980-05-20 |
| Status | Completed |
| Port of departure | Hull, United Kingdom |
| Port of return | Great Yarmouth, United Kingdom |
| Purpose | Research |
| Objectives | The area surveyed forms the northern half of the Spurn and Indefatigable sheets whch encompass the East Midlands Shelf in the west and passes eastwards across the Sole Pit inversion zone into the Anglo-Dutch basin.
Completed 1779km of regional survey comprising lines 9-32 inclusive using equipment developed in Leg 1. Early poor weather resulted in moderate quality seismic data. Thereafter, the weather and data quality were good. Humtec boomer records were of poor quality. Further tests were carried out on the UDI side scan sonar system. Not possible to tow the Humtex boomer and side scan sonar together without danger of entanglement. Experimentation with simultaneous display of air gun and sparker was successful. Good navigational accuracy. Gravity results were good. |
| Chief scientist | Michael C Tully (Institute of Geological Sciences, Edinburgh) |
| Project | 80/01 |
| Coordinating body | NERC |
| Cruise report |  (0.70 MB) |
| Ocean/sea areas | |
| General | North Sea |
| Track charts |  |
| Measurements | |
| Geology and geophysics | |
| Long/short range side scan sonar | Quantity: track kilometres = 1779 Description: geophysical survey |
| Seismic refraction | Quantity: track kilometres = 1779 Description: geophysical survey |
| Gravity measurements | Quantity: track kilometres = 1779 Description: geophysical survey |
