RRS John Murray JM4/70 Leg1
Cruise summary report
| Cruise Info. | |
| Ship name (ship code) | RRS John Murray (74MJ) |
| Cruise identifier | JM4/70 Leg1 |
| Cruise period | 1970-04-23 — 1970-05-06 |
| Status | Completed |
| Port of departure | Barry, United Kingdom |
| Port of return | La Rochelle, France |
| Purpose | Research |
| Objectives | The prupose of this cruise was:
1. Carry out a gravity survey in the SE corner of the Bay of Biscay 2. Reverse a refraction line. 3. Carry out a two ship seismic experiment with the Florence of the Institut Francais du Petrole, France. 4. To test a Lamont type airgun to carry out a controlled seismic reflection profile with airgun over a reversed refraction line. |
| Chief scientist | F Gray (University of Cambridge Department of Earth Sciences) |
| Coordinating body | NERC |
| Cruise report |  (0.28 MB) |
| Ocean/sea areas | |
| General | Bay of Biscay |
| Specific | Bay of Biscay |
| Track charts | (0.02 MB) |
| Measurements | |
| Meteorology | |
| Occasional standard measurements | |
| Geology and geophysics | |
| Single channel seismic reflection | |
| Seismic refraction | |
| Gravity measurements | |
| Magnetic measurements |
