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RRS Discovery D177
Cruise summary report
Cruise Info. | |
Ship name (ship code) | RRS Discovery (74E3) |
Cruise identifier | D177 |
Cruise period | 1988-08-26 — 1988-10-05 |
Status | Completed |
Port of departure | Santa Cruz de Tenerife, Spain |
Port of return | Viana do Castelo, Portugal |
Purpose | Research |
Objectives | 1. To investigate the stratigraphy of the south and north sub-basins of the deep Madeira Abyssal Plain, for comparison with previous findings in the central sub-basin (also termed the Great Meteor East area).
2. To investigate the diagenesis and metal relocations in the upper sediments of the above basins and in the continuously accumulated sediments of the Madeira-Tore Rise. 3. To investigate the behaviour of the carbonate system in sediment pore waters above and below the carbonate lyscoline. |
Chief scientist | John Thomson (Institute of Oceanographic Sciences Wormley Laboratory) |
Cruise report | (0.75 MB) |
Ocean/sea areas | |
General | North East Atlantic Ocean (limit 40W) |
Specific | Madeira Abyssal Plain, E Atlantic |
Track charts | |
Measurements | |
Geology and geophysics | |
Core - soft bottom | Quantity: number of cores = 40 Description: 18 for water geochemistry |
Single-beam echosounding | Quantity: track kilometres = 925 Description: bathymetry-narrow beam |
Single channel seismic reflection | Quantity: track kilometres = 470 |