RRS Charles Darwin CD4
Cruise summary report
| Cruise Info. | |
| Ship name (ship code) | RRS Charles Darwin (74AB) |
| Cruise identifier | CD4 |
| Cruise period | 1985-05-17 — 1985-06-11 |
| Status | Completed |
| Port of departure | Ardrossan, United Kingdom |
| Port of return | Falmouth, United Kingdom |
| Purpose | Research |
| Objectives | The general aim of the cruise was to obtain geophysical data that would yield information on the formation of the continental margin on the western side of Hatton Bank, part of Rockall Plateau.
The cruise had two principal experimental objectives: 1. To obtain a cross sectional map of seismic velocity in the crust across the margin. 2. To image structures in the crust across the margin. |
| Chief scientist | Graham K Westbrook (University of Birmingham Department of Geological Sciences) |
| Cruise report |  (1.80 MB) |
| Ocean/sea areas | |
| General | North East Atlantic Ocean (limit 40W) |
| Specific | N.E. Atlantic |
| Track charts |  |
| Measurements | |
| Physical oceanography | |
| Other physical oceanographic measurements | Quantity: number of stations = 2 Description: sound velocity stations |
| Geology and geophysics | |
| Multi-beam echosounding | Quantity: track kilometres = 3680 |
| Single channel seismic reflection | Quantity: track kilometres = 864 |
| Seismic refraction | Quantity: track kilometres = 640 |
| Gravity measurements | Quantity: track kilometres = 3680 |
| Magnetic measurements | Quantity: track kilometres = 2016 |
| Other geological/geophysical measurements | Quantity: number of deployments = 8 Description: Ocean bottom seismometers |
