Cruise inventory

RRS Discovery D161

Cruise summary report

Cruise Info. 
Ship name (ship code)RRS Discovery (74E3)
Cruise identifierD161
Cruise period1986-08-15 — 1986-09-19
Port of departureFalmouth, United Kingdom
Port of returnFunchal, Portugal
Objectives1. To study the ocean-continent transition zone on the western margin of Portugal.
2. To study the Azores-Gibraltar plate-boundary and past plate-boundaries of the Iberian Plate.
3. To conduct experiments east of Madeira to characterise the seismic properties of the upper 1000m of sediment.
Chief scientistRobert B Whitmarsh (Institute of Oceanographic Sciences Wormley Laboratory)
Cruise reportRRS Discovery D161 cruise report d161.pdf — access key 'C' (0.66 MB) 
Ocean/sea areas 
GeneralNorth East Atlantic Ocean (limit 40W)
SpecificNorth Atlantic
Track chartsRRS Discovery D161 cruise track — trk3289.html
Physical oceanography 
BathythermographQuantity: number of profiles = 6
Geology and geophysics 
Single-beam echosoundingQuantity: track kilometres = 2400
Description: GLORIA,3.5 KHZ instrument
Multi-beam echosoundingQuantity: track kilometres = 4800
Long/short range side scan sonarQuantity: track kilometres = 3600
Description: Geological long range inclined asolic,(GLORIA)
Single channel seismic reflectionQuantity: track kilometres = 2700
Seismic refractionQuantity: number of deployments = 50
Description: 19 digital ocean bottom seismographs (DOBS) deployed,6 disposable sonobuoys deployed
Gravity measurementsQuantity: track kilometres = 5556
Magnetic measurementsQuantity: track kilometres = 2778