RRS James Clark Ross JR19960403 (JR12)
Cruise summary report
| Cruise Info. | |
| Ship name (ship code) | RRS James Clark Ross (74JC) |
| Cruise identifier | JR19960403 (JR12) |
| Cruise period | 1996-03-05 — 1996-04-03 |
| Status | Completed |
| Port of departure | Stanley, Falkland Islands (Malvinas) |
| Port of return | Stanley, Falkland Islands (Malvinas) |
| Purpose | Research |
| Objectives | This cruise followed the systematic sonar mapping campaign of JR09a by carrying out detailed geological and geophysical surveys along the East Scotia Ridge. The base maps provided by the 1995 HAWAII-MR1 survey allowed very precise targeting of rock sampling and seismic survey lines. Cruise JR12 aimed to define the three-dimensional structure of an anomalous region of the Ridge by collecting seismic data along closely-spaced profiles and deploying disposable sonobuoys. |
| Chief scientist | Roy Livermore (British Antarctic Survey) |
| Project | Marine Geophysics Cruise - East Scotia Sea |
| Coordinating body | BAS |
| Cruise report |  (8.73 MB) |
| Ocean/sea areas | |
| General | South Atlantic Ocean |
| Specific | Southern Ocean |
| Measurements | |
| Physical oceanography | |
| Bathythermograph | Description: A number of XBTs were launched on the cruise. No. of deployments not noted. |
| Geology and geophysics | |
| Dredge | Description: Several dredges were made throughout the cruise. No. of dredges not noted. |
| Core - soft bottom | Description: Wax coring samples were made throughout the cruise. No. of samples not noted. |
| Single channel seismic reflection | Description: Seismic gear was used during the cruise. No. of deployments not noted. |
| Magnetic measurements | Quantity: number of profiles = 1 Description: A magnetometer fish was deployed during the cruise. |
