Cruise inventory

RRS John Murray JM12/77_Leg1

Cruise summary report

Cruise Info. 
Ship name (ship code)RRS John Murray (74MJ)
Cruise identifierJM12/77_Leg1
Cruise period1977-09-27 — 1977-10-10
StatusCompleted
Port of departureBarry, United Kingdom
Port of returnAberdeen, United Kingdom
PurposeResearch
ObjectivesDevoted to natural radioactivity and neutron activation surveys in the Western English Channel.
Chief scientistJ M Miller (Institute of Geological Sciences, Keyworth)
Cruise reportRRS John Murray JM12/77_Leg1 cruise report john_murray12_77.pdf — access key 'C' (0.11 MB) 
Ocean/sea areas 
GeneralBay of Biscay
Track chartsRRS John Murray JM12/77_Leg1 cruise track — trk1892.html
Measurements 
Geology and geophysics 
Core - rockQuantity: number of cores = 6
Multi-beam echosoundingQuantity: track kilometres = 507
Long/short range side scan sonarQuantity: track kilometres = 507
Description: MS47
Single channel seismic reflectionQuantity: track kilometres = 507
Description: Pinger
Seismic refractionQuantity: track kilometres = 507
Description: Sparker
Other geological/geophysical measurementsQuantity: track kilometres = 507
Description: Seabed gamma spectrometry
Other geological/geophysical measurementsQuantity: track kilometres = 507
Description: Seabed neutron activation,(first sea trial of towed seabed neuton act.spec)