RRS Discovery D143

Cruise summary report

Cruise Info. 
Ship name (ship code)RRS Discovery (74E3)
Cruise identifierD143
Cruise period1983-12-22 — 1984-01-19
Port of departureDakar, Senegal
Port of returnDakar, Senegal
Objectives1. To investigate whether there is a heat flow anomaly across the Cape Verdes Rise, and to measure heat flow through old oceanic crust.
2. To take surface and deep water samples, and to collect atmospheric dust samples.
3. To test a prototype digital Ocean Bottom Seismometer (OBS).
Chief scientistRobert S White (University of Cambridge Department of Earth Sciences)
Cruise reportRRS Discovery D143 cruise report d143.pdf (0.33 MB) 
Ocean/sea areas 
GeneralNorth East Atlantic Ocean (limit 40W)
SpecificCentral E. Atlantic
Track chartsRRS Discovery D143 cruise track — trk3148.html
Physical oceanography 
Surface measurements underway (T,S)Quantity: track kilometres = 4630
Description: T only
Other physical oceanographic measurementsQuantity: number of profiles = 1
Description: sound velocity stations
Geology and geophysics 
In-situ seafloor measurement/samplingQuantity: track kilometres = 370
Description: temp.;geothermy
Multi-beam echosoundingQuantity: track kilometres = 4630
Single channel seismic reflectionQuantity: track kilometres = 2778
Gravity measurementsQuantity: track kilometres = 4630
Magnetic measurementsQuantity: track kilometres = 4630
Other geological/geophysical measurementsQuantity: track kilometres = 370
Description: heat flow