RRS Discovery D172

Cruise summary report

Cruise Info. 
Ship name (ship code)RRS Discovery (74E3)
Cruise identifierD172
Cruise period1987-12-17 — 1988-03-30
Port of departureRio de Janeiro, Brazil
Port of returnStanley, Falkland Islands (Malvinas)
ObjectivesGeophysics/ Geology
A wide variety of studies were planned for separate regions of the Southern Ocean:
1) Measure heatflow in some of the small basins in the Scotia Sea to determine their ages
2) Recover an array of previously deployed current meters
3) A survey of an area of the Scotia Ridge between South Georgia and the Falklands
4) Extend the knowledge of a region to the west of the Antarctic Peninsula by the implementation of coring and seismic programmes. This work occupied the whole of Leg 3.
Chief scientistPeter F Barker (British Antarctic Survey)
ProjectMarine Geophysics Cruise-Scotia and Bellingshausen Seas
Cruise reportRRS Discovery D172 cruise report d172.pdf (1.61 MB) 
Ocean/sea areas 
GeneralSouth Atlantic Ocean
South East Pacific Ocean (limit 140W)
SpecificScotia Sea/Weddell Sea/S.E. Pacific
Track chartsRRS Discovery D172 cruise track — d172track.pdf (0.05 MB) 
Biology and fisheries 
Sediment trapsQuantity: number of surveys = 1
Description: A study of the ridge crest-trench collisions and sedimentary processes.
Geology and geophysics 
In-situ seafloor measurement/samplingQuantity: number of surveys = 1
Description: A geophysical survey of Aurora Dank to determine evolution.
Data held at BODC 
Discrete samples 
16  CTD frame plus rosette sampler