Cruise inventory

RRS Charles Darwin CD57

Cruise summary report

Cruise Info. 
Ship name (ship code)RRS Charles Darwin (74AB)
Cruise identifierCD57
Cruise period1991-03-15 — 1991-04-12
Port of departureSanta Cruz de Tenerife, Spain
Port of returnPonta Delgada, Portugal
ObjectivesDeep-towed geophysical surveys and sampling of Kane Transform Fault and the adjacent Mid-Atlantic Ridge
Chief scientistRoger C Searle (University of Durham, Department of Geological Sciences)
Cruise reportRRS Charles Darwin CD57 cruise report cd57.pdf — access key 'C' (0.52 MB) 
Ocean/sea areas 
GeneralNorth Atlantic Ocean
SpecificSanta Cruz de Tenerife to Ponta Delgada, Azores
Track chartsRRS Charles Darwin CD57 cruise track — trk3628.html
Physical oceanography 
Current metersQuantity: number of stations = 3
Description: 6 recovered
Geology and geophysics 
DredgeQuantity: number of deployments = 30
Description: (dredges) geochemistry of lavas, petrology of crust
Bottom photographyQuantity: number of deployments = 2
Description: (tows) towed camera (600 and 800 frames)
Geophysical measurements made at depthQuantity: track kilometres = 548.192
Description: TOBI deep towed sidescan, profiler, magnetometer
Single-beam echosoundingQuantity: track kilometres = 2778
Description: 10kHz PES on passage
Long/short range side scan sonarQuantity: track kilometres = 548.192
Description: short range sidescan on TOBI (see G72)
Gravity measurementsQuantity: track kilometres = 3148.4
Description: continuous gravity, Lacoste and Romberg meter
Magnetic measurementsQuantity: track kilometres = 2592.8
Description: surface magnetics (total field) on passage
Magnetic measurementsQuantity: track kilometres = 548.192
Description: deep towed 3-component magnetometer on TOBI (see G72)
Moorings, landers, buoys 
Physical oceanography 
Current meters26° 8' 59" N  44° 49' 59" W — current meters 200m and 500m above bottom recovered, laid Jan 1990
Current meters26° 6' 0" N  44° 51' 0" W — current meters 500m and 800m above bottom recovered, laid Jan 1990