RRS Shackleton S1/83
Cruise summary report
|Ship name (ship code)||RRS Shackleton (74SF)|
|Cruise period||1982-12-02 — 1983-01-22|
|Port of departure||Gibraltar, Gibraltar|
|Port of return||Gibraltar, Gibraltar|
|Objectives||1) To determine the geological structures linking the two islands whose land geology was known in the most detail (Maio and Santiago) This knowledge should provide models for the uplift mechanism which created the islands.
2) To determine the relationship of the volcanic centres to the pre-existing structures of the oceanic crust.
3) To sample seamounts surrounding the island archipelago to place limits on the areal distribution of the distinctive magmatism of the islands.
|Chief scientist||Ian A Hill (University of Leicester Department of Geology)|
|Cruise report||(1.01 MB)|
|General||North East Atlantic Ocean (limit 40W)|
|Geology and geophysics|
|Dredge||Quantity: number of deployments = 3|
|Multi-beam echosounding||Quantity: track kilometres = 7428|
|Long/short range side scan sonar||Quantity: track kilometres = 311|
|Single channel seismic reflection||Quantity: track kilometres = 4058|
|Seismic refraction||Quantity: number of stations = 14|
Description: no. of stations;sonobuoy
|Gravity measurements||Quantity: track kilometres = 7541.344|
|Magnetic measurements||Quantity: track kilometres = 7408|