Cruise inventory

RRS John Murray JM1/68 Leg 4

Cruise summary report

Cruise Info. 
Ship name (ship code)RRS John Murray (74MJ)
Cruise identifierJM1/68 Leg 4
Cruise period1968-02-02 — 1968-02-12
Port of departureLas Palmas, Spain
Port of returnLas Palmas, Spain

1. Reconnaissance - geochemical/geological investigations of the NW African Shelf
2. refraction, seismic and other geophysical studies in the Canaries.
Chief scientistJ S Tooms (Imperial College London Department of Geology)
Cruise reportRRS John Murray JM1/68 Leg 4 cruise report john_murray1_68.pdf — access key 'C' (12.08 MB) 
Ocean/sea areas 
GeneralNorth East Atlantic Ocean (limit 40W)
SpecificNorth West Africa Shelf
Geology and geophysics 
GrabQuantity: number of samples = 59
Description: sediment
Core - rockQuantity: number of samples = 16
Description: rock
Bottom photographyQuantity: number of stations = 2
Description: camera, 1 at traverse V and 1 at VI
Magnetic measurementsDescription: magenetometer between traverses
Other geological/geophysical measurementsQuantity: number of surveys = 4
Description: sparker traverse runs