RRS Discovery D129
Cruise summary report
| Cruise Info. | |
| Ship name (ship code) | RRS Discovery (74E3) |
| Cruise identifier | D129 |
| Cruise period | 1982-05-29 — 1982-06-22 |
| Status | Completed |
| Port of departure | Abidjan, Côte d'Ivoire |
| Port of return | Santa Cruz de Tenerife, Spain |
| Purpose | Research |
| Objectives | 1. To investigate early diagenetic processes, especially denitrification, in sediment profiles from the equatorial Atlantic high productivity zone obtained by coring.
2. To obtain carbonate saturation data from the pore waters of similar geochemical provenance but differing depths. 3. To sample sediments and pore waters in the CV2 and GME areas as part of the international high level nuclear waste disposal evaluation programme, with special emphasis on redox-related phenomena. 4. To continue in situ filtration tests in the water column, and to obtain preliminary data using this equipment. 5. To conduct a programme of water column sampling in conjunction with the in situ filtration experiments, especially concentrating on manganese distribution. |
| Chief scientist | T Roger S Wilson (Institute of Oceanographic Sciences Wormley Laboratory) |
| Cruise report |  (0.39 MB) |
| Ocean/sea areas | |
| General | North East Atlantic Ocean (limit 40W) |
| Specific | Gulf of Guinea |
| Track charts |  |
| Measurements | |
| Physical oceanography | |
| CTD stations | Quantity: number of stations = 14 |
| Chemical oceanography | |
| Oxygen | Quantity: number of stations = 14 |
| Phosphate | Quantity: number of stations = 14 |
| Nitrate | Quantity: number of stations = 14 |
| Silicate | Quantity: number of stations = 14 |
| Alkalinity | Quantity: number of stations = 14 |
| Trace elements | Quantity: number of stations = 14 |
| Meteorology | |
| Routine standard measurements | |
| Geology and geophysics | |
| Core - soft bottom | Quantity: number of cores = 15 Description: Ten Kasten cores and five box cores to sample intensively for sediment and pore waters. |
| Other geological/geophysical measurements | Quantity: number of samples = 9 Description: pore water samples |
