RRS Discovery D131

Cruise summary report

Cruise Info. 
Ship name (ship code)RRS Discovery (74E3)
Cruise identifierD131
Cruise period1982-08-12 — 1982-09-23
Port of departureGibraltar, Gibraltar
Port of returnFalmouth, United Kingdom
ObjectivesMajor objectives of the cruise were to follow up an earlier underway survey of the Charlie-Gibbs Fracture Zone with geological and geophysical station work and to sample and to make near-bottom observations of the Northwest Atlantic Mid-Ocean Canyon. The Charlie-Gibbs Fracture Zone station work was to include dredging, recordings of microseismicity and seismic refraction profiles. En route to the fracture zone a short seismic reflection profiling survey was also planned in the Iberia Abyssal Plain.
Chief scientistRobert B Whitmarsh (Institute of Oceanographic Sciences Wormley Laboratory)
Cruise reportRRS Discovery D131 cruise report d131.pdf (0.94 MB) 
Ocean/sea areas 
GeneralNorth Atlantic Ocean
Strait of Gibraltar (Mediterranean Sea)
SpecificNorth Atlantic
Track chartsRRS Discovery D131 cruise track — trk2792a.html RRS Discovery D131 cruise track — trk2792b.html
Routine standard measurements
Geology and geophysics 
DredgeQuantity: number of deployments = 4
Core - soft bottomQuantity: number of cores = 1
Multi-beam echosoundingQuantity: track kilometres = 7222.8
Single channel seismic reflectionQuantity: track kilometres = 585.6
Seismic refractionQuantity: track kilometres = 203.7
Gravity measurementsQuantity: track kilometres = 7222.8
Magnetic measurementsQuantity: track kilometres = 4815.2
Data held at BODC 
Discrete samples 
1  Piston corer