RRS Discovery D73_2
Cruise summary report
| Cruise Info. | |
| Ship name (ship code) | RRS Discovery (74E3) |
| Cruise identifier | D73_2 |
| Cruise period | 1975-08-03 — 1975-08-26 |
| Status | Completed |
| Port of departure | Ponta Delgada, Portugal |
| Port of return | Southampton, United Kingdom |
| Purpose | Research |
| Objectives | The objective of this Cambridge experiment was to obtain seismograms from OBS laid west of the median valley at 45 degrees from shots fired east of the valley at moderate ranges in order to study the attenuation of P and S waves propogated in the crust and upper mantle as they cross the region of the postulated magma chamber. Four sonobuoys were to be deployed on two occasions at the ends of the shot lines to supply necessary crustal structure information. |
| Chief scientist | Anthony S Laughton (Institute of Oceanographic Sciences Wormley Laboratory) |
| Project | Explosion seismology at the Ridge Crest using OBS and Sonobuoys |
| Cruise report |  (7.21 MB) (3.28 MB) |
| Ocean/sea areas | |
| General | North Atlantic Ocean |
| Specific | King's Trough Line |
| Track charts | (0.11 MB) (0.82 MB) |
| Measurements | |
| Geology and geophysics | |
| Long/short range side scan sonar | Quantity: number of deployments = 4 Description: A set of 4 sonobuoys were deployed and recovered several times during the cruise. |
