Cruise inventory

RRS Charles Darwin CD77

Cruise summary report

Cruise Info. 
Ship name (ship code)RRS Charles Darwin (74AB)
Cruise identifierCD77
Cruise period1993-03-18 — 1993-04-18
StatusCompleted
Port of departurePonta Delgada, Portugal
Port of returnPonta Delgada, Portugal
PurposeResearch
ObjectivesStudy of hydrothermal plumes and hydrothermal sedimentation
Chief scientistHarry Elderfield (University of Cambridge Department of Earth Sciences)
ProjectBRIDGE
Coordinating bodyNERC
Ocean/sea areas 
GeneralNorth East Atlantic Ocean (limit 40W)
SpecificMid-Atlantic ridge, 23-29N;43-45W
Track chartsRRS Charles Darwin CD77 cruise track — trk3855.html
Measurements 
Physical oceanography 
CTD stationsQuantity: number of profiles = 21
Description: Deep casts, principally over 50-500m above bottom with transmissometer
Subsurface temperature and salinity measurementsQuantity: number of deployments = 19
Description: deployments of ZAPS sled with CTD-nephelometer, Mn probe
Transparency (eg transmissometer)Quantity: number of profiles = 21
Description: Deep casts, principally over 50-500m above bottom with transmissometer
Chemical oceanography 
Other dissolved gasesQuantity: number of profiles = 21
Description: rosette sampler (11 bottles) - radon and helium
PhosphateQuantity: number of profiles = 21
Description: rosette sampler (11 bottles)
NitrateQuantity: number of profiles = 21
Description: rosette sampler (11 bottles)
SilicateQuantity: number of profiles = 21
Description: rosette sampler (11 bottles)
Contamination 
Trace metalsQuantity: number of profiles = 21
Description: rosette sampler (11 bottles) - metals and aluminium
Geology and geophysics 
DredgeQuantity: number of deployments = 3
Description: rock/pipe dredges
Core - soft bottomQuantity: number of cores = 4
Description: 1.2m gravity cores
Other geological/geophysical measurementsQuantity: number of deployments = 8
Description: bottom mounted pumps for particles
Moorings, landers, buoys 
Geology and geophysics 
Other geological/geophysical measurements23° 22' 0" N  44° 57' 0" W — 0241-1029 31 Mar
Other geological/geophysical measurements23° 22' 0" N  44° 57' 0" W — 0531-1300 01 Apr
Other geological/geophysical measurements26° 7' 59" N  44° 49' 59" W — 0053-1508 05 Apr
Other geological/geophysical measurements29° 10' 0" N  43° 10' 59" W — 0001-1225 12 Apr
Other geological/geophysical measurements23° 22' 0" N  44° 57' 0" W — 0444-1344 30 Mar
Other geological/geophysical measurements26° 7' 59" N  44° 49' 59" W — 2325 03 Apr-1258 04 Apr
Other geological/geophysical measurements29° 10' 0" N  43° 10' 59" W — 0020-1220 09 Apr
Other geological/geophysical measurements29° 10' 0" N  43° 10' 0" W — 0219-1650 10 Apr