RRS John Murray JM1/68 Leg 4
Cruise summary report
| Cruise Info. | |
| Ship name (ship code) | RRS John Murray (74MJ) |
| Cruise identifier | JM1/68 Leg 4 |
| Cruise period | 1968-02-02 — 1968-02-12 |
| Status | Completed |
| Port of departure | Las Palmas, Spain |
| Port of return | Las Palmas, Spain |
| Purpose | Research |
| Objectives | Aims
1. Reconnaissance - geochemical/geological investigations of the NW African Shelf 2. refraction, seismic and other geophysical studies in the Canaries. |
| Chief scientist | J S Tooms (Imperial College London Department of Geology) |
| Cruise report |  (12.08 MB) |
| Ocean/sea areas | |
| General | North East Atlantic Ocean (limit 40W) |
| Specific | North West Africa Shelf |
| Measurements | |
| Geology and geophysics | |
| Grab | Quantity: number of samples = 59 Description: sediment |
| Core - rock | Quantity: number of samples = 16 Description: rock |
| Bottom photography | Quantity: number of stations = 2 Description: camera, 1 at traverse V and 1 at VI |
| Magnetic measurements | Description: magenetometer between traverses |
| Other geological/geophysical measurements | Quantity: number of surveys = 4 Description: sparker traverse runs |
