RRS Discovery D206
Cruise summary report
| Cruise Info. | |
| Ship name (ship code) | RRS Discovery (74E3) |
| Cruise identifier | D206 |
| Cruise period | 1993-12-08 — 1994-01-20 |
| Status | Completed |
| Port of departure | Cadiz, Spain |
| Port of return | Gibraltar, Gibraltar |
| Purpose | Research |
| Objectives | Investigating fluid flow regime of western Mediterranean ridge and mapping seabed features of Mediterranean ridge. (EC-Ref# 931208.012) |
| Chief scientist | Graham K Westbrook (University of Birmingham School of Earth Sciences) |
| Project | MEDRIFF/MAST II-0037 |
| Coordinating body | School of Earth Sciences, University Birmingham (on behalf of CEC DG XII) |
| Ocean/sea areas | |
| General | Ionian Sea (Mediterranean Sea) Mediterranean Sea - Eastern basin |
| Specific | Ionian Sea, Sea of Crete |
| Track charts |  |
| Measurements | |
| Geology and geophysics | |
| Core - soft bottom | Quantity: number of cores = 18 Description: Piston cores (6 or 9m) |
| In-situ seafloor measurement/sampling | Quantity: number of deployments = 20 Description: Heat flow measurements (9 or 6m probe),thermal gradient & cond. |
| Single-beam echosounding | Quantity: activity duration in days = 30 Description: Simrad EA500 echo-sounder bathymetry |
| Single-beam echosounding | Quantity: activity duration in days = 30 Description: 3.5kHz echo-sounder: bathymetry/near surf. sedimentation structures |
| Long/short range side scan sonar | Quantity: activity duration in days = 11 Description: Towed Ocean Bottom Instrument (TOBI): 30 kHz sidescan sonar and |
| Other geological/geophysical measurements | Description: S/chlor. of pore water samples,permeability meas. - planned post cruise analysis |
| Other geological/geophysical measurements | Quantity: number of deployments = 8 Description: Deployments of PUPPI1 and 6 were not successful |
| Other geological/geophysical measurements | Quantity: activity duration in days = 11 Description: TOBI: 7 kHz acoustic sub-bottom profiler (~600 nautical miles) |
| Other geological/geophysical measurements | Description: Piston core geological description, P-wave velocity analysis |
| Moorings, landers, buoys | |
| Geology and geophysics | |
| In-situ seafloor measurement/sampling | 34° 52' 0" N 20° 51' 0" E — PUPPI2: pop up pore pressure instrument. Depl. 1993 day 355; Rec. 1993 day 358 |
| In-situ seafloor measurement/sampling | 34° 52' 59" N 20° 48' 0" E — PUPPI3: Depl. 1993 day 358, rec. 1993 day 364 |
| In-situ seafloor measurement/sampling | 35° 13' 0" N 21° 31' 59" E — PUPPI8: Depl. 1994 day 011, rec. 1994 day 014 |
| In-situ seafloor measurement/sampling | 35° 13' 59" N 21° 28' 0" E — PUPPI5: Depl. 1994 day 003, rec. 1994 day 007 |
| In-situ seafloor measurement/sampling | 35° 16' 59" N 21° 28' 0" E — PUPPI7: Depl. 1994 day 007, rec. 1994 day 011 |
| In-situ seafloor measurement/sampling | 34° 52' 59" N 20° 46' 59" E — PUPPI4: Depl. 1993 day 364, rec. 1994 day 003 |
