RRS Challenger CH8/77
Cruise summary report
| Cruise Info. | |
| Ship name (ship code) | RRS Challenger (74CH) |
| Cruise identifier | CH8/77 |
| Cruise period | 1977-05-10 — 1977-05-23 |
| Status | Completed |
| Port of departure | Ardrossan, United Kingdom |
| Port of return | Barry, United Kingdom |
| Purpose | Research |
| Objectives | To study the geological history of the Firth of Lorne by sampling of rock and soft sediments on the sea-bed (using gravity corers, grabs and the I.G.S rock-drill), by geophysical measurements, particuarly sono-buoy seismic refraction work, shallow reflection profiling, deep reflection profiling using a multi-channel array and magnetometry, and by monitoring tidal currents in some of the ice-gouged troughs in the Firth. |
| Chief scientist | Jeremy Hall (University of Glasgow Department of Geology) |
| Cruise report |  (0.92 MB) |
| Ocean/sea areas | |
| General | Inner Seas off the West Coast of Scotland |
| Track charts |  |
| Measurements | |
| Physical oceanography | |
| Current meters | Quantity: number of deployments = 2 Description: 24 hours |
| Geology and geophysics | |
| Grab | Quantity: number of samples = 21 |
| Core - soft bottom | Quantity: number of samples = 26 Description: gravity core samples. |
| Single-beam echosounding | Quantity: track kilometres = 666.72 |
| Long/short range side scan sonar | Quantity: track kilometres = 666.72 |
| Single channel seismic reflection | Quantity: track kilometres = 666.72 |
| Seismic refraction | Quantity: track kilometres = 54 |
| Magnetic measurements | Quantity: track kilometres = 666.72 |
