- Resources
- Inventories
- Cruise inventory
- Report
- 3478
RRS Challenger CH70
Cruise summary report
| Cruise Info. | |
| Ship name (ship code) | RRS Challenger (74CH) |
| Cruise identifier | CH70 |
| Cruise period | 1990-08-10 — 1990-08-27 |
| Status | Completed |
| Port of departure | Great Yarmouth, United Kingdom |
| Port of return | Aberdeen, United Kingdom |
| Purpose | Research |
| Objectives | Production by chemautotrophy and methylotrophy in the North Sea |
| Chief scientist | Paul Dando (Marine Biological Association of the UK) |
| Project | MAST I/Sulphide and methane based ecosystems |
| Coordinating body | MBA (UK)/EC |
| Ocean/sea areas | |
| General | North Sea |
| Specific | North Sea |
| Measurements | |
| Chemical oceanography | |
| Other dissolved gases | Quantity: number of profiles = 7 Description: vertical water profiles (H2, CH4) |
| Other chemical oceanographic measurements | Quantity: number of samples = 4 Description: bottom gas samples, submersible, composition and stable isotopes |
| Other chemical oceanographic measurements | Quantity: number of profiles = 15 Description: box cores, vertical profiles for ammonia, pH, sulphate, sulphide |
| Biology and fisheries | |
| Zoobenthos | Quantity: number of deployments = 15 Description: box cores for zoobenthos |
| Other biological/fisheries measurement | Quantity: number of profiles = 14 Description: methane oxidation rates - vertical profiles |
| Other biological/fisheries measurement | Quantity: number of profiles = 15 Description: sulphate reduction rates, vertical profiles |
| Geology and geophysics | |
| Bottom photography | Quantity: number of dives = 4 Description: dives - videos of pockmark bottoms from submersible |
| Long/short range side scan sonar | Quantity: track kilometres = 150 Description: Waverly side scan, Hunter Boomer, 3.5kHz sub-bottom profiler |
| Multichannel seismic reflection | Quantity: track kilometres = 150 Description: Waverly side scan, Hunter Boomer, 3.5 kHz sub-bottom profiler |
| Other geological/geophysical measurements | Quantity: number of samples = 4 Description: bottom gas samples, submersible, composition and stable isotopes |
