Cruise inventory

RRS Charles Darwin CD92A

Cruise summary report

Cruise Info. 
Ship name (ship code)RRS Charles Darwin (74AB)
Cruise identifierCD92A
Cruise period1995-04-06 — 1995-04-13
StatusCompleted
Port of departureFairlie, United Kingdom
Port of returnDunstaffnage, United Kingdom
PurposeResearch
Objectives1. To identify suitable sites on the LOIS northern mooring line for benthic process studies at depths of approx 400, 700, 1000 and 1500 metres.
2. To carry out the first set of process measurements in the LOIS study at these sites.
Chief scientistS Martyn Harvey (Dunstaffnage Marine Laboratory)
ProjectLOIS - SES Ellett Line
Coordinating bodyNERC
Cruise reportRRS Charles Darwin CD92A cruise report cd92.pdf — access key 'C' (0.63 MB) 
Ocean/sea areas 
GeneralNorth East Atlantic Ocean (limit 40W)
SpecificHebridean Shelf Edge: esp. 56-57N, 9-10W
Track chartsRRS Charles Darwin CD92A cruise track — trk4077.html
Measurements 
Physical oceanography 
Water bottle stationsQuantity: number of stations = 4
Description: bottles depl. with reversing thermometers for use in incubations
Chemical oceanography 
OxygenQuantity: number of stations = 4
Description: bottles depl. with reversing thermometers for use in incubations
Trace elementsQuantity: number of cores = 17
Description: on-deck incubations; sectioning for later analysis
RadioactivityQuantity: number of samples = 6
Description: 3x25l bottles filled from non-toxic supply
IsotopesQuantity: number of cores = 17
Description: on-deck incubations; sectioning for later analysis
IsotopesQuantity: number of cores = 3
Description: Sholkovitz cores sectioned for later analysis
Biology and fisheries 
Sediment trapsQuantity: number of cores = 17
Description: on-deck incubations; sectioning for later analysis
Benthic bacteria/micro-organismsQuantity: number of cores = 17
Description: on-deck incubations; sectioning for later analysis
ZoobenthosQuantity: number of cores = 8
Description: sifted for faunal size class analysis; sectioned for particle sizing
Geology and geophysics 
Core - soft bottomQuantity: number of cores = 8
Description: sifted for faunal size class analysis; sectioned for particle sizing
Bottom photographyQuantity: number of deployments = 3
Description: bed hop camera deployments
Data held at BODC 
Discrete samples 
13  MulticorerGeological sample radioactivity
Sediment water content, porosity and surface area
Stable isotope enrichment in sediment
Inorganic chemical composition of sediment or rocks
Other fluxes between the bed and the water column
Carbon concentrations in sediment
Sediment lipid concentrations
Concentration of carbohydrates, phenols, alkanols (alcohols), ethers, aldehydes and ketones in sediment
Sediment grain size parameters
Nitrogen concentrations in sediment
Sediment pollen content
Concentration of organic matter in sediments
Geological sample density
Amino acids in sediment
Concentration of aliphatic hydrocarbons in sediment samples
Concentration of inorganic sulphur species in sediment
6  Sample taken from ship's non-toxic supplyRadioactivity in the water column
2  Sholkovitz Gravity CorerGeological sample radioactivity
Stable isotope enrichment in sediment
Sediment age